Program & Invitation of ICMPT-5 2019
Program of the 5th International Conference on Manufacturing Process Technology
(ICMPT-5 2019)
ICMPT-5 2019Yanbian University, Yanji, China
August 21~24, 2019
Organized byThe Korean Society of Manufacturing Process Engineers(KSMPE)
Yanbian University, Yanji, ChinaHunan University of Science and Technology, China
Invitation
We are pleased to invite you to the 5th International Conference on Manufacturing Process Technology, hosted by the Korean Society of Manufacturing Process Engineers(Korea), Yanbian University(China) and Hunan University of Science and Technology(China) on August 21~24, 2019 at Yanbian University, Yanji, China. This conference is designed to provide a forum for exchanging technical information and sharing experiences for those people from industry, R&D institute and academic communities.
In the conference, renowned researchers and scientists from Korea, China, Canada, Pakistan, Japan, Malaysia, Singapore, Australia, and United Kingdom will address the recent advances in manufacturing process technology, including the cutting work special process, precision machining and machine tools and so on. We sincerely hope that this conference will serve a chance for participants to get perspectives on the state-of-the-art technologies, share the valuable and renovated experiences and meet the people from various communities.
In the conference more than 73 papers are selected and presented in all topics concerning manufacturing process technology. From 8 countries, about 150 engineers and researchers will attend this conference. We, the organizing committee, expect the presentation of their achievements and developments as well as fruitful discussions.
We also hope that this conference promotes the international exchange of useful information and creates friendship among the specialists who are working in the field of manufacturing process technology.
The organizing committee appreciates your contribution to this conference.
Yanbian University, Yanji, China, August 21, 2019
Prof. Sung Ki Lyu, Yue Wen Hui, Ren Jingri Chairman of ICMPT-5 2019
Conference Officials
ChairmanŸ Professor Sung Ki Lyu, Director, Korean Society of Manufacturing Process
Engineers, Korea
Ÿ Professor Yue Wen Hui, Hunan University of Science and Technology, China
Ÿ Professor Ren Jingri, Yanbian University, China
Steering CommitteŸ PIAO XIANGFAN, Yanbian University, China
Ÿ Tae Jo Ko, Yeungnam University, Korea
Ÿ Li Peng Nan, Hunan University of Science and Technology, ChinaŸ Zhezhu Xu, University of Alberta, Edmonton, Canada
Organizing CommitteeŸ Chair
n Seongdae Choi, Kumoh National Institute of Technology, Korea
Ÿ Co-chairsn Hochan Kim, Andong University, Korea
n Inhwan Lee, Chungbuk University, Korea
n Lu Long, Huaihai Institute of Technology, China
n Doosun Choi, KIMM, Korea
n Seokwoo Lee, KITECH, Korea
n Honggun Kim, Jeon Ju University, Korea
n Hyun-jin Choi, Daegu Mechatronics&Materials Institute, Korea
n Kyung-Chang Lee, Pukyong National University, Korea
n Donghyeon Cho, Daejin University, Korea
n Sung-hun Oh, Chonbuk National University, Korea
n Jeong-won Lee, SMT LTD, Korea
n Jae-ho Yoon, Jukwang LTD, Korea
Technical Program CommitteeŸ Young-tae Cho, Changwon National University, KoreaŸ Hyeon-gyu Kwon, Kumoh National Institute of Technology, KoreaŸ Bong-kee Lee, Chonnam National University, KoreaŸ Jeong-woo Park, Chosun University, KoreaŸ Hae-ji Kim, Gyeongnam National Univ. of Science and Technology, KoreaŸ Joo-han Kim, Seoul National University of Science and technology, KoreaŸ Eun-chae Jeon, Ulsan University, KoreaŸ Hae-ji Kim, Gyeongnam National Univ. of Science and Technology, KoreaŸ Jae-uk Lee, KITECH, KoreaŸ Hyun-joon Kim, Kyungpook National University, KoreaŸ Igu Kwak, Jeonju University, Korea Ÿ Jun-young Park, Kumoh National Institute of Technology, KoreaŸ Du-hwan Mun, Kyungpook National University, KoreaŸ Se-jin Yuk, Hanyang University, KoreaŸ Hae-woon Choi, Keimyung University, KoreaŸ Jang-Min Park, Yeungnam University, KoreaŸ Jaewon Choi, The Univ. of Arkon, USAŸ Sanghu Park, Pusan National University, KoreaŸ Byeong-chang Kim, Kyungnam University, KoreaŸ Seong-uk Zhang, Dongeui University, KoreaŸ Jae-seop Kwak, Pukyoung National University, KoreaŸ Sang-chan Lee, Mokpo National University, KoreaŸ Young-hun Jeong, Kyungpook National University, KoreaŸ Han-sub Sim, Gyeongnam National Univ. of Science and Technology, KoreaŸ Jun-se Han, Korea Institute of Machinery Material, KoreaŸ Jae-sil Kim, Changwon National University, KoreaŸ Jeong-seok Kim, Chosun University, KoreaŸ Chang-woo Lee, Konkuk University, KoreaŸ Jonggeol Ok, Seoul National University of Science and technology, KoreaŸ Yong-ho Jeon, Ajou Univerisity, KoreaŸ Mungyu Kwak, Kyungpook National University, KoreaŸ Jaeung Cho, Kongju National University, KoreaŸ Seung-jae Lee, Wonkwang University, KoreaŸ Jeong-min Kim, Andong National University, Korea
Ÿ Hae-sung Yoon, Korea Aerospace University, KoreaŸ Hyong-kyun Kim, Far East University, USAŸ Myung Chang Kang, Pusan National University, KoreaŸ Myeong-hun Kim, KIFLT, KoreaŸ Bum-sik So, Gbitech, KoreaŸ Hae-ryong Youn, Korea Institute of Robot and Convergence, KoreaŸ Mun-chol Yoon, Pukyong National University, KoreaŸ Jae-hwan Son, Daegu Mechatronics & Materials Institute, KoreaŸ Sang-don Mun, Chonbunk National University, KoreaŸ Jean Byringiro Bosco, Dedan Kimathi University of Technology, KenyaŸ Byeng-Hee Yoo, Texas State Univ., USA Ÿ Jae-Won Choi, University of Akron, USAŸ Uthayakumar, Kalasalingam University, IndiaŸ Li Chang Ping, Hunan University of Science and Technology, China
Conference Secretariat● Secretariat Prof. Seong-Dae Choi, Kumoh National Institute of Technology, Korea
E-mail: [email protected] Phone: +82-10-8812-8130
● Managing Secretariat Mrs. Eun-Jung Shim, Korean Society of Manufacturing Process Engineers, Korea
E-mail: [email protected] Phone: +82-53-581-2239
Program
Program Overview[Wednesday / August 21]
12:10 ~ 13:20 : Registration14:30 ~ 15:20 : Opening Ceremony & Keynote Speech 15:30 ~ 16:15 : Oral Presentation 16:30 ~ 17:30 : Poster Presentation 118:30 ~ 20:00 : Reception
[Thursday / August 22]
09:00 ~ 10:30 : Poster Presentation 210:40 ~ 11:40 : Special Session 111:40 ~ 12:40 : Special Session 213:00 ~ 14:00 : Lunch 14:00 ~ 15:15 : Special Session 315:30 ~ 16:30 : Lab Tour16:30 ~ 18:00 : Technical Discussion
[Friday / August 23]
09:00 ~ 10:15 : Special Session 410:25 ~ 11:40 : Special Session 511:50 ~ 13:00 : Special Session 613:00 ~ 14:00 : Lunch 14:00 ~ 15:00 : Technical Discussion15:30 ~ 18:00 : Technical Tour18:30 ~ : Closing Ceremony
[Saturday / August 24]
09:00 ~ 10:30 : Yanbian University & Technical Tour
Keynote Speech[Chairpersons : Hochan Kim, Andong National University, Korea]
KN-1 Observations on Eigenfrequencies in Structural Modification ································ 1 - Seong-Ho Yun(Kumoh National Institute of Technology, Korea)
KN-2 Research on the Kinematic Characteristics of Digging Tree Mechanism of Tree Transplanter ·················································································································· 2
- ZHAO Dejin(Yanbian University, China)
Oral Presentation 1[Chairpersons : Kyong-Chang Lee, Pukyong National University, Korea]
OP1-1 Portable Incubator for Pre-Term Babies ············································································································································ 3 - Amre Eizad, Falak Zahra, Hamza Alam, Hassan Tahir, Afrasiab Khan Bangash (Air University, Pakistan)
OP1-2 A Study on the Optimal Design of Two-Stage Planetary Gearbox for Industrial Machinery ························································································································· 4
- Zhen Qin, Dongseon Kim, Yu-Ting Wu and Sung-ki Lyu(Gyeongsang National University, Korea)
OP1-3 A New Quick-Response Nonlinear Sliding Mode Tracking Differentiator with its Chattering-Free Discrete-Time Algorithm ································································ 5
- LV Zhengxiang, JIN Shanhai, and YU Jingdong(Yanbian University, China)
Poster Presentation 1[Chairpersons : Seong-Dae Choi, Kumoh National Institute of Technology, Korea]
PP1-1 Frequency Domain Analysis for An Adaptive Windowing Parabolic Sliding Mode Filter ································································································································· 6
- Shanhai Jin, Xiaodan Wang, Yonggao Jin(Yanbian University, China) and Xiaogang Xiong(Singapore Institute Of Manufacturing Technology, Singapore)
PP1-2 Discrete-time Algorithms of a Parabolic Sliding Mode Filter: a Comparative Review ······························································································································ 7
- Shanhai Jin, Xiaodan Wang, Yonggao Jin(Yanbian University, China), Xiaogang Xiong(Harbin Institute of Technology Shenzhen Graduate School, China)
PP1-3 Parabolic Sliding Mode Filtering with Feed-forward Compensation ························ 8 - Shanhai Jin, Xiaodan Wang, Yonggao Jin(Yanbian University, China), Xiaogang
Xiong(Harbin Institute of Technology Shenzhen Graduate School, China)
PP1-4 Friction Property for Sliding Contact of Micro Patterned Half Circle Shape ········································································································································ 9 - Yan Mengmeng, Ren Jingri(Yanbian University, China)
PP1-5 Study on Friction and Wear Properties of 45 Steel ·········································································································································· 10 - Yan Mengmeng, Ren Jingri(Yanbian University, China)
PP1-6 Relationship between Surface Quality Similarity and Friction Coefficient of Various Materials ··································································································· 11
- Tang Ziming, Li Changjie, Ren Jingri(Yanbian University, China)
PP1-7 Design and Experimental Study on Vibrating Digger ······································································································································ 12
- Wen Xuezhu, Lian Zheman(Yanbian University, China)
PP1-8 Main Parameter of Effect on Vibrating Digger Performance ······································································································································ 13 - Wen Xuezhu(Yanbian University, China)
PP1-9 Study on Characteristics of Green Parts of Birch Flour/Polyester Composite by Selective Laser Sintering
······································································································································ 14 - Dejin Zhao(Yanbian University, China)
PP1-10 A Study on the Development of Device for Combination of PE pipe and Socket ····························································································································· 15
- Jeong-hwan Lee, Seoung-hyeon You, Sung-hoon Oh(Chonbuk National University, Korea)
PP1-11 A Study on the Cutting Characteristics during Trimming Process of CFRP ··· 16 - Seoung-hyeon You, Jeong-hwan Lee, Sung-hoon Oh(Chonbuk National University,
Korea)
PP1-12 A Study on Fracture Property of Adhesive Interface at Bonding Material Attached with the Materials of Reinforced Plastic and Foam ································ 17
- Jae-Ung Cho, Jae-Won Kim(Kongju University, Korea)
PP1-13 A Study on Improving the Energy Efficiency and Temperature Dispersion of Refrigerator ···················································································································· 19
- Jiachen Gao, Jaeyeol Kim, Yoonsoo Jung, Eunji Kim(Chosun University, Korea), Jaeho Kim, Daeyeong Ha(G.I.M.Tech Co.,Ltd, Korea)
PP1-14 A Study on Dual Servo System for Ultra Fine Machining ······························· 20 - GyungIl Lee, Jaeyeol Kim and JiachenGao, Yoonsoo Jung, Eunji Kim(Chosun
University, Korea)
PP1-15 Mechanical Properties of 3D Printed Tool Steel for Trimming Die ··············· 21 - Hochan Kim(Andong National University, Korea) Sungjong Choi(Andong National
University, Korea) and Jongdock Seo(Shin Young Co., Ltd., Korea)
PP1-16 A Study on Robot Motion in Human-Robot Collaboration for Smart Factory Safety Implementation ································································································· 23
- Hye-Yeon Ryu, Dae-Won KIM, Kyong-Chang Lee and Hyun-Hee KIM(Pukyong National University, Korea)
PP1-17 Comparative Study on Conventional Methods and DICOM Methods Followed for the Hearing aid Shell Production ····································································· 25
- Hyong-kyun Kim(Far East University, Korea), Seong-Dae Choi(Kumoh National Institute of Technology, Korea)
PP1-18 Cam Box Design for a Drum Type of an Automatic Tool Changer with a Roller Gear Cam ········································································································· 26
- Hyun-Jin Choi(Daegu Mechatronics & Materials Institute), Han-Gyu Lee, Woo-Sub Cha, Gyeong-Yeon Kim(Dae Young CoreTech Co., Ltd, Korea)
PP1-19 A Study on the Process Simulation Analysis of the High Precision Laser Scriber System ············································································································· 27
- Hyun-Jin Choi(Daegu Mechatronics & Materials Institute), Seong-Dae Choi(Kumoh National Institute of Technology, Korea)
PP1-20 Development of Polar Component Separation Apparatus with Carbon Fiber Column ······················································································································· 28
- Juncheng Zhao, Shuo Cheng, Xiangfan Piao(Yanbian University, China)
PP1-21 Ultrasound-assisted Liquid-liquid Spray Extraction for the analysis of Trace-level Persistent Organic Pollutants in water
······································································································································ 29 - Han Yeong Kaw(University Putra Malaysia, Serdang, Malaysia), Junlin Li, Xiangzi
Jin, Xiangfan Piao, Donghao Li(Yanbian University, China)
PP1-22 A Study on Optimal Design of Drive Gear for Transfer Case ······················· 30 - Dongseon Kim, Zhen Qin, Seongmin Moon and Sung-ki Lyu(Gyeongsang National
University, Korea)
Poster Presentation 2[Chairpersons : Sung-hoon Oh, Chonbuk National University, Korea)]
PP2-1 Sheet Metal Conical Roll-twisting (CRT) Process for Fabrication of a Spiral Blade ····························································································································· 31
- Sanghu Park and Seongmoon Yang(Pusan National University, Korea)
PP2-2 A Study on the Heating System of Hot Water Panel ··········································· 32 - Dong-Hyun Cho(Daejin University, Korea), Myeong-Gi Jo(OnsuTech Co., Ltd.,
Korea)
PP2-3 Study on the Structural Analysis of Plunger Hinge according to the Structure of Press Power Transfer Unit ························································································· 33
- Chul Woo Park(Daegu Mechatronics & Materials Institute, Korea), Boo Youn Lee (Keimyung University, Korea) and Han Yong Lee(IDS Co., LTD, Korea)
PP2-4 Study on the Static Stiffness of Dual Head Scroll Lapping Machine ················ 35 - Chul Woo Park(Daegu Mechatronics & Materials Institute), Boo Youn Lee
(Keimyung University, Korea) and Chang Ho Kim(Tae Sung Technology Co., LTD, Korea)
PP2-5 Analysis of Fracture Toughness of Carbon Composite according to Fiber Orientation using Infrared Thermography ·································································· 37
- Sun-Ho Go, Min-Sang Lee(Graduate School of Mechanical Engineering, Jeonju University, Korea), Chang-Ki Hong(Graduate School of Carbon Fusion Engineering, Jeonju University, Jeonju, Korea), Lee-Ku Kwac, Hong-Gun Kim(Department of Mechanical and Automotive Engineering, Jeonju University, Jeonju, Korea)
PP2-6 Design and Production of 24 Sets of Horizontal Vertical Diffusion Tank
Compatible Test System ····························································································· 39 - Mengyan Gao(Yanbian University, China), Xiangfan Piao(Ministry of Education,
Yanbian University, China)
PP2-7 Design of Combined System of Multi-channel Liquid Phase Microextraction System And Gas Chromatography
······································································································································ 40 - Xinjie Zhang(Yanbian University), Xiangfan Piao(Ministry of Education, Yanbian
University, China)
PP2-8 A Study on Optimization of Ball End-mill Geometry Using FEM ···················· 41 - Jong Min Lee, Tae Jo Ko, Ye In Kwak, Farooq Ahmed(Yeungnam University,
Korea)
PP2-9 Effective Burr Removal Mechanism during Drilling of CFRP using Helical Groove Drill Bit ······························································································ 42
- Zhen Yu, Tae Jo Ko and Ki Moon Park(Yeungnam University, Korea)
PP2-10 Optimization of Temperature Control System for 3-D Curved Cover-glass Molded Shapes ·········································································································· 43
- Soon Uk Kim(Addfine Technology co., LTD, Korea) and Seong Dae Choi(Kumoh National Institute of Technology, Korea)
PP2-11 Study on Vibration Analysis and Control of a Machine Tool ·························· 44 - Gi Man Kim and Seong Dae Choi(Kumoh National Institute of Technology,
Korea)
PP2-12 Development of Automatic Attachment Device for Display Driver IC Protection of Thin Film Metal Foil ······················································································ 45
- Young Hyung Kim(Department of IT Convergence, Kumoh National Institute of Technology, Korea) and Seong Dae Choi(Department of Mechanical System Engineering, Kumoh National Institute of Technology, Korea)
PP2-13 Finite Element Simulation for Characterization of Laser Melting Deposition ······································································································································ 46 - Gyeong Yun Baek(Chonnam National University, Korea) and Do-Sik Shim(Korea
Maritime and Ocean University, Korea)
PP2-14 A Study on Tactile Sensor-Based Gripper Control System ·································· 47 - Ki-min Jeong, Hyun-Hee Kim Kyung-Chang Lee(Pukyong National University,
Korea)
PP2-15 Research on Positioning Error Compensation System of Ball Screw Feed Drive Machine Tool ············································································································· 48
- Zhen Qin, Dongseon Kim(Gyeongsang National University, Korea), Zhe-zhu Xu(University of Alberta, Canada) and Sung-ki Lyu(Gyeongsang National University, Korea)
PP2-16 Stress Analysis of Asymmetric Gears ································································· 49 - Tomoya Masuyama(National Institute of Technology, Tsuruoka College, Japan)
PP2-17 Gear Whine with Virtual Designed Gearbox ······················································ 50 - Jiha Kim, Seungwon Jeong(Romax Technology Limited, United Kingdom)
PP2-18 A Study on the Calculation Method of Ball Screw Feed Drive ····················· 51 - Xiaojing Liu and Zhezhu Xu(University of Alberta, Edmonton, Canada)
PP2-19 Performance of EDM Assisted Milling based on a Novel Tool ······················· 52 - Changping Li, Shujian Li, Pengnan Li, Qiulin Niu, Xinyi Qiu(Hunan University
of Science and Technology, China) and Tae Jo Ko(Yeungnam University, Korea)
PP2-20 Pull-off Test and Analysis of CFRP Hat-shaped Structure ··················· 53 - Shujian Li, Pengnan Li, Changping Li, Qiulin Niu(Hunan University of Science
and Technology, China) and Tae Jo Ko(Yeungnam University, Korea)
PP2-21 Tool Structure Optimization Based on Edge Force Coefficient ····················· 54 - Xinyi Qiu, Pengnan Li, Anhua Chen and Changping Li(Hunan University of
Science and Technology, China)
PP2-22 Study on Effect of Vibration Amplitude on Cutting Performance of SiCp/Al Composites during Ultrasonic Vibration assisted Milling ····································· 55
- Lu Jing, Qiulin Niu, Chunhao Wang, Daohui Xiang, Xiao Liu(Hunan University of Science and Technology, China)
Special Session 1[Chairpersons : Sanghu Park, Pusan National University, Korea]
SS1-1 A Study on the Analysis of Flow Rate According to Proper Discharge Rate of Drainage Pump and the Body Bolt Hole Shape for the Crossing of River a Test of Combat Equipment
···································································································································· 56 - Dae Un Kim, Gwi Tae Moon, Chang Hyun Cho, Ki Joong Lee(Consolidated
Maintenance Depot Republic of Korea Army, Korea)
SS1-2 Classification of Non-coding Regions in DNA using Deep Learning ············· 57 - Hilal Tayara and Kil To Chong(Chonbuk National University, Korea)
SS1-3 Press-Forming of GFRP For Automobile Suspension Coil Spring ········································································································································ 58
- Jungkyu Shin, Jaeki Kwon(Youngheung Iron and Steel located in Bo-ryung, Republic of Korea)
SS1-4 Simulation Analysis of Flexible Track Drilling Machine Based On ADAMS ···································································································································· 59
- Zhonggang Zhu, Qi Zhang, Jianhua Lv(Zhejiang Shuanghuan Driveline Co., China)
Special Session 2[Chairpersons : Zhang HuiXia ,Huaihai Institute of Technology, China]
SS2-1 Study on Three-dimensional Printing of Porous 316L Stainless Steel by 3DP Method with Water-based Binder ················································································ 60
- Jianming Yang, Yang Tang, Dazhi Huang and Yunfei Ding(School of Mechanical and Ocean Engineering, Jiangsu Ocean University, China)
SS2-2 Microstructure and Properties of Ni/Al2O3 Composites Prepared by Powder Injection Molding
······································································································································ 61 - Feng Shang(Huaihai Institute of Technology, China), Zhenwei Cao(China
University of Mining and Technology, China), Peng Zhang, Bin Qiao and Huaqiang Li(Huaihai Institute of Technology, China)
SS2-3 Boundary Lubrication in Transient Elliptical Contact ········································································································································ 62 - Dichu Xu(University of Leeds,UK), Qi Zhang(R&D Dept., Zhejiang Shuanghuan
Driveline Co., LTD., China) and Jiugen Wang(Zhejiang University, China)
SS2-4 A Study on the Friction and Wear Properties of 45 Steel、TiN and TiAlN ······ 63 - Yuanming LI Huibo He and Huaying Li(Southwest University, China)
Special Session 3[Chairpersons : Huaying Li, Southwest University, China]
SS3-1 Study on Cutting Force and Cutting Temperature in Dry Cutting of 20Cr Steel ········································································································································ 65 - YUE Qi-bin, HE Hui-bo, LI Hua-ying, ZHANG Xian-yin, Jiang Xue(Southwest
University, China)
SS3-2 Research Status of Low Pressure Casting Aluminum Alloy Wheels ···················· 66 - Lichao Feng(Huaihai Institute of Technology, Chian)
SS3-3 Effects of Matrix Components on Microstructure and Properties of SiCP/Al-Fe-V-Si Composites
······································································································································ 67 - HE Yi-qiang, QIAN Chen-chen, XU Hu-lin, CHEN Jin-song, LI Hua-qiang,
FENG Li-chao(Jiangsu Ocean University, China)
SS3-4 Research on Preparation of Copper Based Superhydrophobic Surface by Jet Electrodeposition
······································································································································ 68 - HUANG Dazhi, TIAN Zongjun, LIU Zhidong, SHEN Lida, QIU Mingbo(Nanjing
University of Aeronautics and Astronautic, China) CHEN Jinsong, MA Shiwei(Huaihai Institute of Technology, China)
Special Session 4[Chairpersons : Wen XiQin, Huaihai Institute of Technology, China]
SS4-1 Performance of Ion plating TiAlN Coating on YG8 ··············································· 69 - HuiXia Zhang(Huaihai Institute of Technology China)
SS4-2 Study on Three-dimensional Printing of Porous 316L Stainless Steel by 3DP Method with Water-based Binder ················································································ 70
- Jianming Yang, Yang Tang, Dazhi Huang and Yunfei Ding(Jiangsu Ocean University, China)
SS4-3 Based on Interest Region Detection of Roadway Environment Perception System by Autonomous Mobile Robot ·············································································· 71
- Mingqin Liu(Huaihai Institute of Technology, China), Xiaoguang Zhang(China University of Mining and Technology, China)
SS4-4 Caterpillar Robot Mechanical Structure Design ······················································ 72 - Long Lu(Huaihai Institute of Technology, China), Xiaoguang Zhang(China
University of Mining and Technology, China)
Special Session 5[Chairpersons : LU Long, HuaiHai Institute of Technology, China]
SS5-1 Supplier Selection in Supplier Chain Management using Choquet Integral-based Linguistic Operators under Fuzzy Heterogeneous Environment ·························· 73
- Xiqin Wen(Huaihai Institute of Technology, China)
SS5-2 Tracking Control for Wheeled Mobile Robots Using Neural Network Model Algorithm Control ······································································································· 74
- Yuan Liang Zhang(HuaiHai Institute of Technology, China)
SS5-3 Based on Fractal and Wavelet Technology Defect Edge Detection of Weld X Ray Image ·························································································································· 75
- Anhua Peng(Huaihai Institute of Technology, China), Xiaoguang Zhang(China University of Mining and Technology, China)
SS5-4 Microstructure and Properties of Ni/Al2O3 Composites Prepared by Powder Injection Molding ······································································································ 76
- Feng Shang(Huaihai Institute of Technology, China), Zhenwei Cao(China University of Mining and Technology, China), Peng Zhang, Bin Qiao and Huaqiang Li(Huaihai Institute of Technology, China)
Special Session 6[Chairpersons : Zhang HuiXia, Huaihai Institute of Technology, China]
SS6-1 Research Progress in the Bi-direction Non-contact Mechanical Seal Technology ·················································································································································· 77 - TU Qiaoan(Nanjing Forestry University, China), ZHOU Fei(Academy of Frontier
Science Nanjing University of Aeronautics and Astronautics, China)
SS6-2 Design of Roll Forming Parts to Support PV modules in Building Roof ······· 78 - Sun-Ho Kim and Sung-Uk Zhang(Dong-Eui University, Korea)
SS6-3 Simulation Analysis and Experimental Research on T Grooved End Face Seal Under mid-and-low Speed ·························································································· 79
- Huixia Zhang Long Lu(Huaihai Institute of Technology, China) and Sungki Lyu(Gyeongsang Nati. Univ., Korea)
SS6-4 Structural Design of a New Type of Straw Returning Plowing and Rotary Tilting Duplex Working Machine ···························································································· 80
- Shufa Chen, Fawang Xie(JIANGSU OCEAN UNIVERSITY, China), Xianqing Meng(Ganyu Agricultural Mechanization Technology Extension Service Station, China)
Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Observations on Eigenfrequencies in Structural Modification
Seong-Ho Yun1,#
1 Department of Mechanical Engineering, Kumoh National Institute of Technology, Daehakro 61,
Gumi, Gyeongbuk 730-701, Republic of Korea
# [email protected], TEL: +82-54-478-7324, FAX: +82-54-478-7319
Abstract
In this work natural frequencies are estimated due to the change in modification of connection
configuration of the jointed structural members. Area of the connected region is different from
connection type to type and thus the mass of jointed parts changes accordingly. This results into
change in dynamical characteristics of the member and needs a study of sensitivity analysis of the
system eigenvalues with respect to geometrical parameters such as thickness and width.
Furthermore the dynamical behavior is affected noticeably depending on the magnitude of stiffness
of the flexible jointed area. This corresponding study describes relocations of structural natural
frequencies by using the first order approximation. This formulation is usually applicable to the finite
element structures because of the sensitivity analysis based on the mass and stiffness matrices.
The accuracies of the predicted natural frequencies are tested and validated by performing the
comparative numerical computations.
Keywords: Structural Modification, Natural Frequency Sensitivity, Flexible Connection
Acknowledgement
“This research was supported by Kumoh National Institute of Technology(2019-104-083)”
-1-
Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Research on the Kinematic Characteristics of Digging Tree Mechanism of Tree Transplanter
Dejin Zhao1,#
1 Department of Mechanical Engineering,Yanbian University,Yanji,China
E-mail: [email protected], TEL: +86-433-273-2294
Abstract
In order to study the kinematic characteristics of the tree transplanter and the hydraulic cylinder, this
paper established the model of the tree transplanter with the Cero2.0 software and analyzed kinematic
characteristics of the hydraulic cylinder and the tree spade when the tree spade was driven by the
hydraulic cylinder with the analytical method. The dynamic simulation curves of the angular velocity and
the angular acceleration of the hydraulic cylinder can be obtained with the Matlab software. Then the
appropriate format model file was imported into Adams software, and the angular velocity and the
angular acceleration of the hydraulic cylinder were analyzed and simulated in Adams. The obtained
curves in Adams software were compared with the curves obtained with the Matlab using the analytical
method. The result revealed that the trends of the two ways simulation curves were consistent. The
comparison showed the analytical method of kinematic characteristics of the tree transplanter and
hydraulic cylinder was correct.
Keywords: The Tree Transplanter, Mechanism of Digging Tree, Kinematic Characteristics
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Portable Incubator for Pre-Term Babies
Amre Eizad1,#, Falak Zahra1, Hamza Alam1, Hassan Tahir1, Afrasiab Khan Bangash1
1 Department of Mechatronics Engineering, Air University, Pakistan.
# Corresponding Author / E-mail: [email protected], TEL: +82-10-5687-9383, FAX: +82-55-772-1578
Abstract
Preterm children require a controlled environment that is as close to that inside the womb as possible.
Incubators are well equipped to fulfill this requirement but they are cumbersome and expensive,
restricting their portability and availability in less developed and rural areas. This research comprises
the development and system validation of a portable incubator. The system consists of a collapsible
baby enclosure that can be stowed inside the system base when not in use. The enclosure is made
up of acrylic so that it is easy to clean and allows unhindered visual observation of the occupant
while being robust enough to withstand conditions during transit. The system can be powered either
by mains supply or by a 12VDC automobile power supply. It also has an onboard battery to ensure
a continuous supply during transit. A Peltier plate controlled using a microcontroller ensures the
desired enclosure temperature irrespective of the ambient conditions. The built-in sensor probes can
measure skin temperature, pulse rate, blood oxygenation level, and ECG of the infant and display
them on the system screen. The system function is validated through tests of its peak power
consumption and of the heating and cooling performance of the environment control system.
Keywords: Portable Incubator, Infant Care, Peltier Plate
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
A Study on the Optimal Design of Two-Stage Planetary Gearbox for
Industrial Machinery
Zhen Qin1, Dongseon Kim1, Yu-Ting Wu1 and Sung-ki Lyu1,#
1 Gyeongsang National University 900, Jinju, Gyeongnam, 660-701, Korea
# Corresponding Author / E-mail: [email protected], TEL: +82-55-772-1632, FAX: +82-55-772-1578
Abstract
Gearboxes find extensive use in a wide variety of fields. Over the years, a great deal of research
has been devoted to prevention of gear failures and gear noise. Devising an optimal design is often
considered as the most important stage in the development of a new gearbox. Similar to the varying
requirements of different applications, the directions and method of gearbox design optimization are
also varied. Usually, gear geometry optimization has a great influence on the strength and
transmission error which is the excitation factor that affects the noise level. The main objective of
this article is to study the geometry optimization methodologies of planetary gearbox.
In this study, RomaxDESIGNER which is advanced CAE software used for the design and analysis
of mechanical was used to generate 3D models and calculate various of analysis. Macro geometry
optimal design method and micro geometry modification method are carried out based on a two-
stage planetary gearbox for special-purpose industrial machinery. The optimal macro geometry
parameter was verified by calculations of each gear in gear train, and the effect of micro geometry
modification was also reflected in the analysis of load distribution and transmission error. As an
important evaluation index of power transmission, the mechanical efficiency was calculated based
on ISO standard.
Keywords: Optimal Design, Two-Stage Planetary Gearbox, Power Transmission
Acknowledgement
This study was supported by Basic Science Research Program through the NRF of Korea(NRF)
funded by the MEST(NRF-2016R1D1A1A09920105) & Romax Designer of Romax Technology.
-4-
Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
A New Quick-Response Nonlinear Sliding Mode Tracking Differentiator
with its Chattering-Free Discrete-Time Algorithm
LV Zhengxiang1, JIN Shanhai1,#, and YU Jingdong1
1 Department of Mechanical Engineering, Yanbian University, Yanji, China
E-mail: [email protected], TEL: +86-433-273-2294
Abstract
Traditional nonlinear tracking differentiator have a trade off between noise-reduction and quick-
response, furthermore, due to the existence of discontinuous sign um function, its output has a
high-frequency chattering in the discrete-time domain. In order to solve above two problems, This
paper proposes a new noise-tolerant sliding mode tracking differentiator (SMTD). The new SMTD
is an extension of Jin et al.s parabolic sliding mode filter (PSMF-J). On the one hand, the proposed
SMTD adds a exponential convergence term that allows the system to converge faster when
representative point is away from the sliding surface to achieve global fast convergence. One the
other hand, a set-valued function is exploited to replace discontinuous sign um function, and the
discrete-time algorithm of the proposed SMTD is presented by implicit-Euler schemes. Simulations
verify that, the proposed SMTD could converge more quickly than PSMF-J while maintaining
similar noise reduction performance as PSMF-J, furthermore, the chattering phenomenon is
avoided.
Keywords: Quick-Response, Nonlinear Sliding Mode, Chattering-Free Discrete-Time Algorithm
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Frequency Domain Analysis for An Adaptive Windowing
Parabolic Sliding Mode Filter
Shanhai Jin1, Xiaodan Wang1, Yonggao Jin1 and Xiaogang Xiong2
1 Department of Mechanical Engineering, Yanbian University, Yanji, China
2 Singapore Institute Of Manufacturing Technology, 71 Nanyang Dr, Singapore 638075,
E-mail: [email protected], TEL: +86-433-273-2294
Abstract
This paper analyses a frequency domain performance of an adaptive windowing parabolic sliding
mode filter (AW-PSMF) by using Describing Function method. The analysis results show that AW-
PSMF has similar gain characteristics to that of the second-order Butterworth low-pass filter (2-
LPF), but AW-PSMF produces flatter gain behavior than 2-LPF does at cutoff frequency. In
addition, AW-PSMF produces smaller phase lag than 2-LPF does.
Keywords: Parabolic Sliding Mode Filter; Adaptive Windowing; Frequency Domain Analysis
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Discrete-time Algorithms of a Parabolic Sliding Mode Filter:
a Comparative Review
Shanhai Jin1, Xiaodan Wang1, Yonggao Jin1, Xiaogang Xiong2
1 Department of Mechanical Engineering, Yanbian University, Yanji, China
2 School of Mechanical Engineering and Automation, Harbin Institute of Technology Shenzhen
Graduate School, Shenzhen 518055, P. R. China
E-mail: [email protected], TEL: +86-433-273-2294
Abstract
This paper compares two chattering-free discrete-time algorithms of a parabolic sliding mode filter,
which has become one of the most important components of the active disturbance rejection
control, for removing noise. One is an algorithm derived by using the isochronic region (IR) method,
and the other one is an algorithm derived by using the backward Euler (BE) discretization method.
Numerical example results show that the BE method realizes exact arrival of the filter’s state to the
sliding surface and the target state, whereas the IR method produces overshoot. In addition to that,
the phase lag of the BE method is smaller than that of the IR method.
Keywords: Sliding Mode Filter; Chattering-free; Backward Euler Discretization; Isochronic Region
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Parabolic Sliding Mode Filtering with Feed-forward Compensation
Shanhai Jin1, Xiaodan Wang1, Yonggao Jin1 and Xiaogang Xiong2
1 Department of Mechanical Engineering, Yanbian University, Yanji, China
2 School of Mechanical Engineering and Automation, Harbin Institute of Technology Shenzhen
Graduate School, Shenzhen 518055, P. R. China
E-mail: [email protected], TEL: +86-433-273-2294
Abstract
In motion control systems, feedback signals are often corrupted by noise because of environmental
disturbances and measurement errors. Thus, filters are necessary to remove noise to obtain
reliable signals. This paper proposes a new sliding mode filter that possesses a parabolic-shaped
sliding surface. The proposed filter is an extension of a Jin et al.’s parabolic sliding mode filter by
including feed-forward compensating terms for accelerating the tracking speed between the output
and the input. Its discrete-time algorithm is developed by using the backward Euler discretization,
and its discrete-time implementation does not produce chattering. A numerical example is
executed for validating the effectiveness and advantage of the proposed filter.
Keywords: Sliding Mode Filter; Feed-forward Compensation; Backward Euler Discretization;
Feedback Control
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Friction Property for Sliding Contact of Micro patterned Half Circle
Shape
Yan Mengmeng1, Ren Jingri1#
1 Department of Mechanical Engineering, Yanbian University, Yanji, China
# E-mail: [email protected], TEL: +86-433-273-2294
Abstract
In this paper, the pin on disc friction and wear tester at ambient temperature and atmospher
ic pressure and paraffin oil lubrication condition and different density of micro semicircles of
friction test. The influence of contact pressure, graphic density, geometry, sliding direction an
d distance on the friction performance is studied. The analysis in different experimental cond
itions by using Stribeck curve, surface friction properties of micro semicircles of different den
sity. The results show that the different density of micro semicircles, under different sliding d
irections, the variation of friction coefficient is significantly different, but this difference will de
creases with the increase of density,achieve the best when the density is 15%.With the inc
rease of density, it is easier to change the friction mechanism from the critical state to the f
luid dynamic lubrication.
Keywords: Micro Half Circle; Contact Pressure; Stribeck Curve; Friction Properties
Acknowledgement
This project is supported by National Natural Science Foundation of China (Grant No. 51265050).
-9-
Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Study on Friction and Wear Properties of 45 Steel
Yu Zhipeng1, Ren Jingri1,#
1Department of Mechanical Engineering, Yanbian University, Yanji, China
# E-mail: [email protected], TEL: +86-433-273-2294
Abstract
In this article,the grinding material was 45 steel.The friction coefficient of the material was
measured by a thrust ring friction and wear tester.The effects of load,sliding speed and surface
roughness on dry sliding friction and wear properties were systematically analyzed.The weight of
three factors affecting friction coefficient was studied.The experiment results show that with the
increase of load,the speed decreases and the friction coefficient decreases.The weight of
load,speed and surface roughness were 0.57,0.36,0.07.
Key words: 45 Steel; Fiction and Wear; Weight
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Relationship between Surface Quality Similarity and Friction Coefficient
of Various Materials
Tang Ziming1, Li Changjie1, Ren Jingri1#
1 Department of Mechanical Engineering, Yanbian University, Yanji, China
# E-mail: [email protected], TEL: +86-433-273-2294
Abstract
Based on the large thrust ring contact method, we conducted the experiments on friction coupling
phenomenon. We selected the fuzzy clustering analysis method to establish the calculation model,
the relationship between the similarity of the two surfaces rub quality and the friction coefficient is
studied. Through experimental analysis, the similarity of the two surfaces rub quality and the
friction coefficient is significantly correlated in the sample. The friction coefficient increases with the
similarity increases, which indicates that the surface quality of similarity calculation model is correct.
Key words: Surface Quality Similarity; Cluster Analysis; Friction Coefficient
Acknowledgement
This project is supported by National Natural Science Foundation of China (Grant No. 51265050).
-11-
Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Design and Experimental Study on Vibrating Digger
Wen Xuezhu1, Lian Zheman1
1Department of Mechanical Engineering, Yanbian University, Yanji, China
E-mail: [email protected], TEL: +86-433-273-2294
Abstract
The vibrating digger blade and sieve mechanism were adopted by a vibrating digger. The average
height of accumulation soil on vibrating digger blade and sieve has been measured through soil
broken up experiment, and the effects of displacement curve and soil separation on vibrating
digger blade and sieve have been analyzed. When the amplitudes of end point of digger blade and
sieve were greater than 12. 15 mm and 9. 17 mm, and regression slopes of end point of digger
blade and sieve from lowest positions to highest positions were greater than - 1. 87 and -2.50, the
results showed that vibrating digger soil separation has good effect.
Key words: Vibrating Digger; Displacement Curves; Soil Separation Effect
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Main Parameter of Effect on Vibrating Digger Performance
Wen Xuezhu 1
1 Department of Mechanical Engineering, Yanbian University, Yanji, China
E-mail: [email protected], TEL: +86-433-273-2294
Abstract
This paper is defined three parameters λ,K and T using amplitude,vibrating frequency and
tractor forward speed of Vibrating Digger and creats regression equation to analyze the soil
separation ability,vibrating digger draft,driving torque and consumption power of vibrating digger.
Through the analysis,it is known that the determination coefficient of regression equation
represented by parameter T is always ranking the second in each kind of the regression equations,
but when all the regression equations are considered,the determination coefficient of regression
equation represented by parameter T is the most universal.
It was estimated that the T equal to 2.4 or greater was the minimum recommended value.
Key words: Vibrating Digger; Soil Separation Ability; Draft; Driving Torque; Consumption Power
-13-
Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Study on Characteristics of Green Parts of Birch Flour/Polyester
Composite by Selective Laser Sintering
Dejin Zhao1
1 Department of Mechanical Engineering,Yanbian University,Yanji,China
E-mail: [email protected], TEL: +86-433-273-2294
Abstract
In this paper, the birch flour was the raw material with its particle size less than 100μm and the
polyester hot-melt adhesive was used as binder with its particle size less than 60μm. The birch
flour was dried using high speed mixer with heating function. The birch flour/polyester composite
were prepared using the physical mixing method. The surface of the specimen and fracture surface
of specimen were analyzed through the micorgraphs of scanning electron microscopy. In order to
study the characteristics of laser sintering, the preheating temperature of the powder bed of laser
sintering machine and the processing parameters of the birch flour/polyester composite were
determined using single layer sintering method and empirical method. The tensile, flexural and
impact specimens were built in the two scanning laser ways of subarea scan and progressive
scan.The testing results show that the mechanical properties using subarea scan method are
superior to those of progressive scan method and the mechanical properties of the specimens
increase as the laser scan speed decreases. The best mechanical properties of SLS specimens of
brich flour/polyester composite powder were obtained with the following parameters: the laser
power was 11W, layer scan speed was 1800mm/s; layer thickness was 0.1mm; laser scan spacing
was 0.1mm and the average tensile, flexural and impact strength of specimens were 1.35MPa,
3.69Mpa and 0.73KJ/m2 respectively.
Keywords: Birch Flour, Polyester,Selective Laser Sintering
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
A Study on the Development of Device for Combination of PE pipe and
Socket
Jeong-hwan Lee1, Seoung-hyeon You1 , Sung-hoon Oh1,#
1 Mechanical system engineering part of Chonbuk national university,
4010room Engineering building No.4 Chonbuk national university Baekjedaero 567 Jeonju city
Jeollabuk do Korea
# Corresponding Author / E-mail: [email protected], TEL: +82-63-270-4794, FAX: +82-63-270-2388
Abstract
PE pipes for sewerage are constructed by connections with constant length of pipes. To block the
leakage of sewage, connection should be performed under the constant pressure during the related
process. In the existing method, pressurized pipes were inserted after heating socket. The problems
including leakage of sewage were occurred due to the damage or crack on the pipes during the pipe
connection process, or generation of gap as time went on. In this study, stable connection process
between PE pipe and socket was improved by development of connection device. Structure design
and operation type design were performed. By doing these, the potential problems during the
development of prototypes were investigated and prepared in advance. Then, the assembly was
performed with prototypes including extrusion part, pipe supporting part, and rotational part.
Prototypes were developed as the forms to insert the pipes upon rotation under the constant
pressure. The device was developed to connect the pipes of 150~450mm diameter under the
conditions of connection time per socket within 3 minutes and allowable volume within 0.026 for
150mm pipe in the watertight test. Reliability of the device was secured by performing the tests at
the certified institution. From this study, the assembly process of PE pipes for sewerage was
improved. It is anticipated to improve the product credibility resulting in the sales increase. In addition,
technical development skills of the small and medium-sized enterprises could be improved using the
accumulated knowhow upon progression of this technology development.
Keywords: PE pipe, Socket pipe, water-tightness, Coupled device, Automation
Acknowledgement
This study was conducted with the grant of “supporting project for research village” in the auspice
by Small and Medium Business Administration.
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
A Study on the Cutting Characteristics during Trimming Process of
CFRP
Seoung-hyeon You1 , Jeong-hwan Lee1, Sung-hoon Oh1,#
1 Mechanical system engineering part of Chonbuk national university,
4010room Engineering building No.4 Chonbuk national university Baekjedaero 567 Jeonju city
Jeollabuk do Korea
# Corresponding Author / E-mail: [email protected], TEL: +82-63-270-4794, FAX: +82-63-270-2388
Abstract
According to the development of modern industry, weight lightening of machine parts is required
more for the operation under the harsher conditions. CFRP is widely utilized in a variety of machinery
fields due to high specific strength, specific stiffness, erosion resistance, and heat resistance. In
particular, its usages have been expanded to the industries of automobile and aerospace. Parts
using the existing CFRP materials are produced by manual operation or automatic layup and plastic
technology. However, to connect with other parts, they require trimming, milling, and drilling
processes. Many studies have been conducted on drilling while few studies were done on milling or
trimming. In this study, processing characteristics on the process variables were analyzed during the
trimming process of CFRP such as tool form, rotation speed of main axis, conveying speed, and so
on. The results are as follows. Cutting force was the highest at the helix angle 0° and it was
decreased more as the helix angle was higher. Thrust force (Fz) is influenced to flaking during
process of CFRP. Surface roughness showed the tendency to become better quality by increasing
conveying speed under the conditions of 4000rpm and 2500rpm. In view of Burr which is the most
problematic during the process of CFRP, helix angle 45° was found to be the best. Cutting
characteristics by helix angles and processing variables were investigated during trimming process
of CFRP plate. The study results are anticipated to be applied in the process with multiple types of
parts. In addition, the results of this study could be used as the foundation data in the development
of tools for CFRP processing.
Keywords: CFRP, End-mill, Trimming, Surface roughness, Burr, Helix angle
Acknowledgement
This study was conducted with the grant of “supporting project for medium sized researches
(2018R1A2A3074758)” in the auspice by NRF.
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
A Study on Fracture Property of Adhesive Interface at Bonding Material
Attached with the Materials of Reinforced Plastic and Foam
Jae-Ung Cho1,#, Jae-Won Kim2
1 Division of Mechanical & Automotive Engineering, Kongju National University, Republic of Korea
2 Department of Mechanical Engineering, Graduate School, Kongju National University, Republic
of Korea
# Corresponding Author / E-mail: [email protected], TEL: +82-41-521-9271, FAX: +82-41-555-9123
Abstract
Recently, many studies on the production of automobile body using lightweight materials have
been conducted. These lightweight materials frequently have been used with reinforced plastics.
Reinforced plastics have the specific gravity lower than non-metallic materials and have the higher
specific strength and non- stiffness than metallic materials. Adhesive failure properties of the hybrid
material made of lightweight materials were investigated by bonding aluminum foams with these
reinforced plastics. In addition, the specimens were bonded by the structural adhesive widely used
in automobile bodies. In this study, DCB specimens were fabricated by using dissimilar materials
bonded with CFRP and aluminum foam through analytical technique. And the damage test was
performed for the adhesive between the cantilevers by using DCB specimens. The analysis was
carried out at the rate of 3 mm / min in the same manner as the general tensile test. The lower part
was fixed with a pinned cylindrical support and the upper part was applied to a forced displacement.
The maximum reaction force was found to be 735.54 N, and the equivalent stress at maximum
reaction force was 79.08 MPa. When the stress contour in the specimen was observed at this time,
it was found that the highest stress happened at the time when the adhesive breakage started.
Based on these results, it was found that the maximum reaction force appeared just before the
adhesive was broken. The critical energy release rate was utilized to identify the fracture
parameter. It was found that the critical energy release rate appeared as 1235.12 J when the
adhesive was peeled off. Using the study results, we could obtain the data on the adhesive de-
bonding characteristics of the double cantilever beam specimens made of lightweight materials
through the analytical technique.
Keywords: CFRP(Carbon Fiber Reinforced Plastic); Aluminum Foam; DCB(Double Cantilever
Beam); Adhesive; Fracture
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Acknowledgement
This research was supported by Basic Science Research Program through the National
Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and
Technology (2011-0006548). This research was supported by Basic Science Research Program
through the National Research Foundation of Korea (NRF) funded by the Ministry of Education,
Science and Technology (2015R1D1A1A01057607). This work was supported under the
framework of international cooperation program managed by National Research Foundation of
Korea (2016K2A9A2A06004689). This research was supported by Basic Science Research
Program through the National Research Foundation of Korea (NRF) funded by the Ministry of
Education (NRF-2018R1D1A1B07041627).
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
A Study on Improving the Energy Efficiency and
Temperature Dispersion of Refrigerator
Jiachen Gao1, Jaeyeol Kim1,# , Yoonsoo Jung1, Eunji Kim1, Jaeho Kim2 and Daeyeong Ha2
1 Department of Mechanical System & Automotive Engineering, Chosun University,
Gwangju 61452, South Korea.
2 G.I.M.Tech Co., Ltd., Gwangju 61089, South Korea.
# Corresponding Author / E-mail: [email protected], TEL: +82-62-230-7745, FAX: +82-62-230-7035
Abstract
As a popular electronic product every family has at least one refrigerator,even most families use
more than two refrigerators recently. With the strengthening of environmental protection, it is
particularly important to improve the energy saving and reliability of refrigerators. Generally, the cold
air flowing into the freezer compartment is naturally transmitted to the bottom of the refrigerating
compartment. That can lead to the uneven temperature distribution between the interior side and the
door side of the refrigerating compartment. The food stored on the interior side of the refrigerator is
too cold. But the food stored on the door side is slightly higher due to insufficient air conduction,
which shortens the storage time of the food stored in the refrigerator and accelerates the corruption
of the food. In addition, in areas where electricity is insufficient, a cold storage device is required to
maintain the temperature of the refrigeration room when power is cut off. Therefore, in the existing
refrigerator components, there is a lack of a device which cannot only store cold energy but also
improve the temperature distribution of the refrigerator. Accordingly, in order to improve the
temperature distribution and cold storage in the refrigerator, this paper presents an energy storage
device Stereo Air Craft used by PCM, which can be applied to existing plastic or glass shelf directly.
In order to achieve the best improvement, this paper studies the mechanical design of Stereo Air
Craft. Through the structural design and flow simulation of Stereo Air Craft, the optimized design
was realized. When applied to refrigerators, the temperature distribution of the refrigerator was
experimented, which verified the practicability of Stereo Air Craft.
Keywords: Phase Change Material, Stereo Air Craft, Refrigerator, Shelf, Temperature Dispersion
Acknowledgement
This paper was supported by Korea Institute for Advancement of Technology(KIAT) grant funded by
the Korea Government(MOTIE) (P0002092, The Competency Development Program for Industry
Specialist) & “NRF-2016R1D1A1B01014576”
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
A Study on Dual Servo System for Ultra Fine Machining
GyungIl Lee1, Jaeyeol Kim1,# and Jiachen Gao 1 , Yoonsoo Jung1, Eunji Kim1
1 Department of Mechanical System & Automotive Engineering, Chosun University,
Gwangju 61452, South Korea.
# Corresponding Author / E-mail: [email protected], TEL: +82-62-230-7745, FAX: +82-62-230-7035
Abstract
There is an increasing demand for single-point diamond turning to manufacture micro components
as well as micro features on a large workpiece surface. Achieving high precision position control of
the Confucius machine has been a major concern in order to obtain high precision and precise
surface roughness. In this study, a piezoelectric actuator based ultra Fine servo system (FSS) has
been developed and integrated with Global Servo System (GSS). Position detection can be
measured using a laser encoder to accurately measure the straight run error in the GSS system.
The detected error signal is compensated by the FSS system. A feedback position controller has
been implemented and tested through research to improve performance and accuracy. Experimental
results show that the developed FSS system can effectively compensate for errors in the X-axis Y-
axis translation slide of the GSS system.
Keywords: Fine Servo System. Global Servo System. Straight Run Error, Error Signal
Compensation
Acknowledgement
This paper was supported by Korea Institute for Advancement of Technology(KIAT) grant
funded by the Korea Government(MOTIE) (P0002092, The Competency Development
Program for Industry Specialist) & “NRF-2016R1D1A1B01014576
-20-
Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Mechanical Properties of 3D Printed Tool Steel for Trimming Die
Hochan Kim1,# Sungjong Choi2 and Jongdock Seo3
1 Depart ment of mechanical and automotive endineering, Andong National University, Andong,
Gyungsangbuk-do, 36729, South Korea.
2 Research and Education Center for Reliability, Andong National University, Andong,
Gyungsangbuk-do, 36729, South Korea.
3 Shin Young Co., Ltd., Yeongcheon, Gyeongbuk-do, 38899, South Korea.
# Corresponding Author / E-mail: [email protected], TEL: +82-54-810-5269, FAX: +82-54-810-5044
Abstract
Lamination manufacturing is attracting attention as a technology that can bring innovation in design
and production technology in various industrial fields. Recently, research is being conducted to
manufacture injection and press molds having a longer life span utilizing metal 3D printing
technology. In this study, a DED device was selected as a lamination method for the production of
trimming die. Two kinds of metal powders (GRINDUR6: G6, Ferro55: F55) were added to the base
metal (S45C) were deposited and their mechanical characteristics were analyzed. The spherical
metal powders of G6 and F55 were 50 ~ 150mm in diameter and stacked according to the zigzag
and helical scan paths. Various specimens were fabricated from the fabricated blocks and
microstructure and defect observation, hardness test, tensile test, pin-on-disc wear test and impact
test were performed. The two metal specimens showed very fine equiaxed protrusions with a size of
10 ~ 20 mm, but the protrusions were observed at the boundary of the melting zone. The Vickers
hardness of G6 and F55 was similarly measured at about 700 HV for both materials. Zigzag and
helical scan path models of the G6 specimens at 1808 MPa and 1828 MPa, respectively. By the
SEM observation, fine voids, blowholes, and grain boundary brittle fracture regions appeared,
indicating a lack of energy density. These results can be used as a basis for the development of 3D
metal printing technology research and hot stamping dies.
Keywords: 3D Printing; Additive Manufacturing; Directed Energy Deposition; DED; 3D Printed Die;
Hot-stamping; Trimming Die;
Acknowledgement
This work was supported by the Technology Innovation Program (20000231, Development of
commercialization technology on low cost and high efficiency trimming die and hot stamping die for
-21-
Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
1500 MPa tensile strength parts by using a hybrid 3D printing technology with heterogeneous metal
material) funded By the Ministry of Trade, Industry & Energy(MOTIE, Korea).
-22-
Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
A Study on Robot Motion in Human-Robot Collaboration for Smart
Factory Safety Implementation
Ryu Hye-Yeon1, KIM Dae-Won1, Lee Kyong-Chang1,# and KIM Hyun-Hee1
1 Department of Control and Instrumentation, Pukyong National University, Korea
# Corresponding Author / E-mail: [email protected], TEL: +82-51-629-6332
Abstract
Smart factory is one of the changes brought about by the 4th Industrial Revolution. It can install IoT
on the facilities and machines in the factory to collect and analyze the process data in real time and
control itself according to the purpose. Smart factory is emerging as a way to solve various
problems in the production site caused by labor cost increase and shortage of skilled workers.
Probably the final goal of smart factory is unmanned production facility, but with current technology,
unmanned automation of all production sites is difficult. This is because people need to manage
automated systems. In addition, if the production process is complicated, such as a shoe upper,
and a variety of materials are involved, human intervention is essential. There are also people who
work at Adidas' ‘Speed Factory’, which can be called the leader of smart factory. Therefore, even
in the case of smart factories, people have to be involved in process management or intervention.
In this process, collaboration between robots and people is essential. The problem is that human
safety can be hindered by robots when collaborating. Most robots are stronger and faster than
people. In fact, human accidents often occur at various production sites where robots are
introduced. Therefore, it is very important to implement human safety in smart factories where
human-robot collaboration takes place. In this study, we propose an algorithm that guarantees
human safety by avoiding or minimizing collision between human and robot by changing robot 's
motion according to human motion. The fastest part of the robot is the end effector, which is the
work part that can cause the greatest harm to humans. In this paper, we check the distance
between the end effector and the human, and the distance that the end effector can stop without
colliding with human when sending the stop signal immediately. Also, an area having the radius as
the distance is defined as an End Effector Area(EEA). The robot should be able to detect human
access at all times when powered on. If human access is confirmed within the safety zone (ISO
15066 standard), the robot calculates the EEA. When a human enters the EEA, he immediately
stops the robot end effector and observes human motion. When a human moves out of the EEA,
the robot is driven at a low speed that can be stopped instantaneously.
Keywords: Smart Factory, Robot Automation, Human-Robot Collaboration, Safety, UWB
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Acknowledgement
This work was supported by the National Research Foundation of Korea(NRF) grant funded by
the Ministry of Education(NRF-2017R1A2B4010448)
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Comparative Study on Conventional Methods and DICOM Methods
Followed for the Hearing aid Shell Production
Hyeong-Gyun Kim 1, Seong-Dae Choi 2,#
1 Department of Radiological Science, Far East University, 76-32 Daehakgil, Gamgok-myeon,
Euseong-gun, Chungbuk-do, Korea
2 Mechanical System Engineering, Kumoh National Institute of Technology, 350-27, Gumi-daero,
Gumi-si, Gyeongsangbuk-do, Korea
# Corresponding Author / E-mail: [email protected], TEL: +82-54-478-7396, FAX: +82-54-478-7100
Abstract
People who suffer hearing impairment experience difficulties in communicating with other people,
which eventually leads to lower quality of life. Numerous technologies have been applied for a long
time to compensate for this by creating hearing aids. These technologies have evolved into
manufacturing ear shells by making ear impressions, and recently the reproducibility and precision
of manufacturing processes have further improved by modeling technologies converged with 3D
printing. However, as these technologies require ear impressions which can cause human infection
and safety issues, this study aims to test a hearing aid manufacturing technology using DICOM
which does not require ear impressions. To this end, we applied the two methods to fabricate
hearing aids for a patient with moderate hearing impairment and compared the problems. The
results showed that there were no technical differences between them such as feedback, fit, and
occlusion.
Keywords: Hearing Aid; 3D Printing; Ear Impression; DICOM; Feedback
Acknowledgement
This work was supported by the National Research Foundation of Korea(NRF) grant funded by the
Korea government(Ministry of Science and ICT) (No. NRF-2018R1C1B5032146).
-25-
Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Cam Box Design for a Drum Type of an Automatic Tool Changer with a
Roller Gear Cam
Hyun-Jin Choi1#, Han-Gyu Lee2, Woo-Sub Cha2, Gyeong-Yeon Kim2
1 Machinery & Robot Research Division, Daegu Mechatronics&Materials Institute
2 R&D Dept., Dae Young CoreTech Co.,Ltd
# Corresponding Author / E-mail: [email protected], TEL: +82-53-608-2031, FAX: +82-53-608-2079
Abstract
An automatic tool changer (ATC) is either a drum type or a chain type. Compared to a chain type,
a drum type has the advantage that the tool magazine operating time is faster and the unit length
becomes shorter, which shortens the overall length of the equipment. Therefore, it can be
developed and applied to various patterns and types according to the number of tools and the size
of the magazine, depending on the type of a machining center and user demand. A drum type of
an automatic tool changer is driven by a cam box with a roller gear cam and a flat plate groove cam.
It has the advantage of improving the price competitiveness of a machining center as compared to
a chain drive type, having a strong structure and a small number of parts, resulting in less A/S. The
function of the cam box is the rotation and vertical repetition motion of the change arm. The
rotational movement is performed by the roller gear cam in the cam box, and the vertical repetition
motion is carried out by the drive of the flat plate groove cam. In this paper, the dynamics analysis
of the cam box's drive instrument mechanism is performed to verify the selection feasibility of the
motor and the reducer by calculating the maximum torque and the rated torque of the motor, and
the maximum contact force of the roller gear cam derived from the dynamic analysis is added to
review the structural design stability.
Keywords: Automatic Tool Changer, Drum Type, Cam Box, Roller Gear Cam, Lift Cam, Dynamic Analysis
Acknowledgement
This work was partly supported by Korea Evaluation Institute of Industrial Technology(KEIT) grant
funded by the Korea government (MOTIE) (No. 20001305)
-26-
Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
A Study on the Process Simulation Analysis of the High Precision Laser
Scriber System
Hyun-Jin Choi1,#, Seong-Dae Choi2
1 Machinery & Robot Research Division, Daegu Mechatronics&Materials Institute
2 School of Mechanical System Engineering Kumoh National Institute of Technology
# Corresponding Author / E-mail: [email protected], TEL: +82-53-608-2031, FAX: +82-53-608-2079
Abstract
The high-precision laser scriber carries out scribing alumina ceramic substrates for manufacturing
ultra-small chip resistors. The ceramic substrates are loaded, aligned, scribed, transferred, and
unloaded. The entire process is fully automated, thereby minimizing the scribing cycle time of the
ceramic substrates and improving the throughput. The scriber consists of the laser optical system,
pick-up module of ceramic substrates, pre-alignment module, TH axis drive work table, automation
module for substrate loading / unloading, and high-speed scribing control S/W. The loader / unloader
unit, which has the greatest influence on the scribing cycle time of the substrates, carries the
substrates to the work table that carries out the cutting line work by driving the X and Y axes as well
as by adsorbing the ceramic substrates.The loader / unloader unit consists of the magazine up /
down part, X-axis drive part for conveying the substrates to the left and right direction, and the vision
part for detecting the edge of the substrate for the primary pre-alignment of the substrates. In this
paper, the laser scribing machining simulation is performed by applying the instrument mechanism
of each component module. Through this study, the scribing machining process is first verified by
analyzing the process operation and work area of each module in advance. In addition, the scribing
machining process is optimized by comparing and analyzing the scribing cycle time of one ceramic
substrate according to the alignment stage module speed..
Keywords: Laser Scriber, Process Simulation Analysis, Loader / Unloader
Acknowledgement
This work was supported by the Technological Innovation R&D Program (S2570694) funded by the
Ministry of SMEs and Startups (MSS, Korea).
-27-
Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Development of Polar Component Separation Apparatus with Carbon Fiber Column
Juncheng Zhao1, Shuo Cheng1, Xiangfan Piao1,#
Electronic Information Department, Engineering Institute (Yanbian University), Ministry of Education, Yanji, 133002, China
#Xiangfan Piao / E-mail: [email protected], TEL: +86-0433-2732243
Abstract
Aiming at the shortcomings of sample pretreatment—waste of time, low automation, complex
processes and inaccurate experimental results, this paper designs a polar component separation
device with carbon fiber column based on solid phase extraction, which achieves the purpose of
separating samples according to 3 kinds of polarity. The apparatus is composed of the selection and
quantification part of mobile phase, the sample injection part, the sample enrichment part, the sample
separation part, the sample collection part, and the switching power supply, which includes a stepper
motor drive circuit, a control circuit of microinjection pumps, a control circuit of rotary valve, a
photoelectric coding circuit, a MCU interface circuit, a collection module circuit, a power supply circuit
and so on. Separation experiments were carried out using the strong polar solvent—MeOH:H2O=1:9,
the medium polar solvent—MeOH:H2O=6:4, the weak polar solvent—MeOH:DCM=1:3 and ten kinds
of samples. The results show that the apparatus can effectively separate complex samples according
to 3 kinds of polarity. It has the characteristics of simple operation, short time, high automation, and
saving labor and cost, and has broad application prospects in many fields such as medicine, food,
agriculture and so on.
Key Words: Sample Pretreatment; Solid Phase Extraction; Carbon Fiber Column
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Ultrasound-assisted Liquid-liquid Spray Extraction for the analysis of
Trace-level Persistent Organic Pollutants in water
Han Yeong Kaw1,2, Junlin Li2, Xiangzi Jin2, Xiangfan Piao2,*, Donghao Li2,#
1 Department of Environmental Sciences, Faculty of Environmental Studies,
Universiti Putra Malaysia, Serdang, Malaysia
2 Department of Chemistry, MOE Key Laboratory of Natural Resources of the Changbai Mountain
and Functional Molecules, Yanbian University, Park Road 977, Yanji, China.
*Xiangfan Piao / E-mail: [email protected], TEL:+86-0433-2732243
# Corresponding Author / E-mail: [email protected], TEL: +86-0433-2436456, FAX: +86-0433-2732456
Abstract
Persistent organic pollutants (POPs) can be found at trace concentration in the environment,
especially in different environmental water matrices. Yet, the toxicity of trace-level POPs should not
be neglected as they can bioaccumulate and biomagnify in the food chain, and eventually bring
about detrimental impacts to human health. An ultrasound-assisted liquid-liquid spray extraction
method has been developed for analysing trace concentration of POPs in high-volume water
samples. Well-known POPs including organochlorine pesticides (OCPs) and polycyclic aromatic
hydrocarbons (PAHs) were selected as the analytes in this study. High volume of water samples
were continuously spray injected into the immiscible organic solvent under an acoustic field, which
caused the formation of water microdroplets. The increased interactive surface area and collision
probability between two liquid phases enhanced the mass transfer of analytes into the organic phase,
hence significantly improved extraction efficiency. After optimising the extraction parameters, this
technique was applied for the simultaneous determination of trace-level OCPs and PAHs in
environmental water samples. Results indicated that this method exhibited excellent accuracy and
precision with recoveries ranged from 86.8% to 103.2% and RSD of less than 10.5%. With an
intention to analyse trace concentration of environmental pollutants in large volume of water samples,
this technique is easy to operate, inexpensive, environmentally-friendly (reduced consumption of
organic solvent to extract 10 L water) and effective. The ultrasound-assisted liquid-liquid spray
extraction will be useful in the long-term, in-situ monitoring of contaminants in environmental waters.
Keywords: Ultrasound-assisted; Liquid-liquid Spray Extraction; Persistent Organic Pollutants;
Organochlorine Pesticides; Polycyclic Aromatic Hydrocarbons; Trace; Large Volume
-29-
Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
A Study on Optimal Design of Drive Gear for Transfer Case
Dongseon Kim1, Zhen Qin1 and Sung-ki Lyu1,#
1 Gyeongsang National University 900, Jinju, Gyeongnam, 660-701, Korea
# Corresponding Author / E-mail: [email protected], TEL: +82-55-772-1632, FAX: +82-55-772-1578
Abstract
Gears are mechanical element parts with excellent power transmission efficiency and are widely
used in automobile, industrial machinery, aviation industry and machine tools. In order to improve
the performance of the gear, it is necessary to carry out optimization design of the gear geometry.
In this paper, to optimize the geometric tooth profile of helical gears among the gears of the
transfer case gearbox, the gears are modeled using the finite element program, Romax Designer,
to analyze the load and gear teeth of the gearbox power transmission system. The optimized gears
were fabricated and compared with the results of the gear tests.
Keywords: Optimal Design, Drive Gear, Transfer Case, Gear Geometry
Acknowledgement
This study was supported by Basic Science Research Program through the NRF of Korea(NRF)
funded by the MEST(NRF-2016R1D1A1A09920105)
-30-
Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Sheet Metal Conical Roll-twisting (CRT) Process
for Fabrication of a Spiral Blade
Sanghu Park1# and Seongmoon Yang2
1 School of Mechanical Engineering and ERC/NSDM, Pusan National University, 2,
Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan, Korea, 46241
2 Graduate School of Mechanical Engineering, Pusan National University, 2,
Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan, Korea, 46241
# Corresponding Author / E-mail: [email protected], TEL: +82-51-510-1011, FAX: +82-51-510-1973
Abstract
We propose a novel conical roll-twisting (CRT) process to fabricate a metallic Archimedes spiral
blade which has variable curvatures on its surface, and it is a key element of a novel wind power
generator having a remarkably higher efficiency of about 34% compared with conventional wind
power systems. The CRT system consists of a pair of conical rollers (upper and lower sides) and
cylindrical twist-bending rollers in the both lateral sides. With the help of forming analysis results,
multi-step regional forming method was utilized to fabricate the blade. Also, the process parameters
were optimized by a response surface methodology. In this work, we installed the experimental
equipment of CRT process, and it was experimentally proven that the developed CRT process was
capable of producing a spiral blade with a shape error less than approximately 5%. Furthermore, we
believe that the CRT process can be utilized to fabricate diverse sheet metal structures having
continuously changing curvatures for various applications.
Keywords: Archimedes Wind Power Generator, Spiral Blade, Roll-twist-bending (RTB), Multi-stage Forming Process,
Response Surface Methodology
Acknowledgement
This work was supported partially by LG Electronics research funds in Korea. Thanks for their
supports.
-31-
Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
A Study on the Heating System of Hot Water Panel
Dong-Hyun Cho1,#, Myeong-Gi Jo2
1The University of Daejin, 1007, Hogukro, Pocheonsi, Gyeinggodo, 11159, Rep. of Korea
2 OnsuTech Co., Ltd. 27 Eunggol 1gil, Soheul-eup, Pocheonsi, Gyeinggodo, 11182, Rep. of Korea
# Corresponding Author / E-mail: [email protected], TEL: +82-31-539-1973, FAX: +82-31-539-1970
Abstract
Domestic and foreign winter room heating systems (hot water boilers, etc.) of existing houses,
offices, pensions, etc., are mainly supplied to buildings in which they are utilized for spaces with
areas not smaller than 8 pyon and the heating technology is implemented by air circulation
convection heat transfer method. Since the demand for construction of spaces smaller than 2 pyong
such as pensions and hwangtobangs is gradually increasing, the development of room heating
system technology suitable for spaces smaller than 2 pyong is acutely required. However, the
development of such technologies is insufficient now. Therefore, in this study, a heating system
(indoor wall-hanging type hot water boiler) which enables radiation heating for the first time at home
and abroad. In this study, experiments were conducted with bearing type hot water circulation pumps
and underwater key type hot water circulation pumps to select a hot water circulation pump. The
experiments were conducted in the hot water temperature range of the hot water supplied to room
heating ondol panels. The temperature rise rate of the hot water circulation pump of the underwater
key type is higher than that of the bearing type. The temperature of hot water rose over heating time.
The temperature rising rate of the underwater key type was shown to be higher than that of the
bearing type. Based on the results of this study as such, compared to the forced convection heating
system where the air is forced to circulate by the air conditioner, the radiation heating system
implemented more comfortable heating because it implements room heating or cooling with air
movement or circulation. In addition, the study of room heating system accessories suitable for
spaces smaller than 2 pyong greatly contributed to the saving of electric power energy and the
reduction of manufacturing costs.
Keywords: Panel, Hot Water, Heating System, Performance, Heat Transfer, Heat Flux
Acknowledgement
This research was supported by Leap Technological Development Project funded the Department
of Small & Medium Venture Business (S2658998)
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Study on the Structural Analysis of Plunger Hinge according to the
Structure of Press Power Transfer Unit
Chul Woo Park1, Boo Youn Lee2,# and Han Yong Lee3
1 Machinery & Robot Research Division Daegu Mechatronics & Materials Institute, 12, Horim-dong,
Dalseo-gu, Daegu, South Korea, 42714
2 Dept. of Mechanical & Automotive Engineering, Keimyung University, 1095, Dalgubeoldaero,
Daegu, South Korea, 42601
3 IDS Co., LTD, 140,Technojungang-daero, Yuga-myeon, Dalseong-gun, Daegu, South Korea,
43028
# Corresponding Author / E-mail: [email protected], TEL: +82-53-580-6254, FAX: +82-53-580-2039
Abstract
Lightweight vehicle technology has been required to improve the fuel efficiency of vehicles these
days. Accordingly, there is increasing technology requirement for high tensile steel molding
process using a press. The molding of high tensile steel requires spring-back prevention
technology, and high rigidity & high precision performance in the press. In this study, power
transfer system to implement high rigidity of press was compared and verified through mechanism
and structural analysis. Presses are classified into crank, crankless and knuckle press according to
their power transfer method. In this paper, comparative study was performed for power transfer
structures to crankless and knuckle presses. Mechanism analysis used to interpret the kinematic
characteristics of slide frame and the reaction force generate from each hinge. In addition, using
the results from mechanism analysis, structural analysis was conducted to analyze the stress from
connecting rod and plunger assembly at the time of maximum load. According to mechanism
analysis, the reaction force generated at the power transfer joint under the same load was 4.23
e6N for knuckle press, which is around 5.6%, and structural analysis was conducted based on this
result. The hinge structure design of knuckle press was excessively strong compared to crankless
press, and the structural analysis results show that power transfer unit of crankless press has large
value. The structural analysis showed that reaction stresses of plunger hinge in both cases are
negligible, and there would be no problem with durability and reliability. It is expected that power
transfer efficiency improvement would be possible through design optimization of knuckle press
connecting rod and plunger assembly when designing press using the analysis results.
Keywords: Press, Knuckle Press, Crankless Press, Springback.
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Acknowledgement
This paper is the results of the research conducted with the support of SME Technology
Development Support Project’s Export Company Technology Development Project (Project
Number: S2646126).
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Study on the Static Stiffness of Dual Head Scroll Lapping Machine
Chul Woo Park1, Boo Youn Lee2,# and Chang Ho Kim3
1 Machinery & Robot Research Division Daegu Mechatronics & Materials Institute, 12, Horim-dong,
Dalseo-gu, Daegu, South Korea, 42714
2 Dept. of Mechanical & Automotive Engineering, Keimyung University, 1095, Dalgubeoldaero,
Daegu, South Korea, 42601
3 Tae Sung Technology Co., LTD, Techno Circulation Route 1 Road Yugamyeon , Dalseong Gun
Daegu, South Korea, 43025
# Corresponding Author / E-mail: [email protected], TEL: +82-53-580-6254, FAX: +82-53-580-2039
Abstract
Automobile mounted compressors are changing from rotary compressor to scroll compressor to
improve fuel efficiency and effectiveness of vehicles. Scroll compressors have higher efficiency
than conventional ones, and also have advantages of low vibration and low noise. In addition, it
also has advantages of less number of parts, smaller size and lighter weight than conventional
compressors. The performance of scroll compressor depends on the initial quality of adhesion of
contact surfaces between fixed and rotating scroll, which are the key parts. Lapping process is
essential to improve this initial quality. Lapping process is a process that applies lapping agent
between components and make relative motion to remove chip at the scroll surface, and to
improve surface roughness by lapping agent. It is the purpose of this study to investigate the static
stiffness characteristics of the equipment designed for lapping process through structural analysis.
Structural analysis was performed for modal analysis of lapping machine, deflection by its own
weight, and by applying cutting force to main axis. Modal analysis showed that 1st mode was 48.4
Hz which is higher than machine operation speed. Because the main axis is protruded type, self-
weight direction analysis shows that the deformation in the direction of self-weight was 0.09 mm,
which is quite high. The analysis result when cutting force is applied to main axis, axial deformation
was 0.83 mm, which was less than deformation by self-weight, but still a large value. The induced
stresses were negligible for both cases, and there will be no problem with structural durability.
Additional design change is considered to be necessary for structural changes to minimize the
deformation value.
Keywords: Compressor, Scroll Parts, Lapping, High efficiency.
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Acknowledgement
This paper is the results of the research conducted by Local Initiated Technology Development
Project (P0007237) of Regional Cooperative Industry Foster Project sponsored by the Ministry of
Commerce, Industry & Energy and Korea Institute for Advancement of Technology.
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Analysis of Fracture Toughness of Carbon Composite according to
Fiber Orientation using Infrared Thermography
Sun-Ho Go1, Min-Sang Lee1, Chang-Ki Hong2, Lee-Ku Kwac3, Hong-Gun Kim3,#
1 Graduate School of Mechanical Engineering, Jeonju University, Jeonju, Korea
2 Graduate School of Carbon Fusion Engineering, Jeonju University, Jeonju, Korea
3 Department of Mechanical and Automotive Engineering, Jeonju University, Jeonju, Korea
# Corresponding Author / E-mail: [email protected], TEL: +82-63-220-2613, FAX: +82-63-220-3161
Abstract
Carbon fiber reinforced plastics are composites containing carbon fiber reinforced materials with
high mechanical properties, electrical properties and chemical stability. Due to their higher specific
stiffness and higher specific strength, they have been applied to various fields requiring weight
reduction. However, it is very difficult to theoretically interpret the material properties due to the
stacking anisotropic material depending on the loading direction and lamination direction.
Therefore, the investigation of the fracture characteristics of laminated composites is known to be
an important factor to be considered for structural applications. The fracture toughness test specimens
used in this study were laminated at 0°, 0°/90° and + 45° /-45° orientations using Uni-directional
carbon prepreg. The composites were formed by autoclave method. According to ASTM D 5045, the
experiments, the analysis and examination were conducted. At the same time, the temperature
distribution and data from the test specimens during the test were obtained and analyzed using a
thermal camera. After the test, the validation check defined in the specification was first performed.
For 0 ° and + 45 ° / -45 ° specimens, the ratio of Pmax / PQ was found to be 1.1 or more and it
was identified as Unacceptable. For 0 ° / 90 ° test specimens, the ratio of Pmax / PQ was less than
1.1, indicating Acceptable mode. In the 0 ° test specimen which was identified as unacceptable mode,
there was no fiber supported in the shear direction during the test. In the + 45 ° / -45 ° test specimens,
the carbon fibers are stacked in the direction of ± 45 ° of the load, so that the failure mode due to
peeling of the matrix appears. These judgments were confirmed by the thermal imaging camera and
SEM analysis. Only the remaining 0° / 90° specimens were found to give the proper results as defined
in the specifications, and the result of KIC was 101.53 MPa.m^1/2, which is about 1.5 times higher
than other orientations.
As a result, it was confirmed that the direction of lamination of carbon fibers is a very important
factor for increasing the fracture toughness of the carbon composite material. Also, the fracture
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
toughness test during the design of composite material will ensure the soundness of the structural
design.
Keywords: Carbon Fiber Reinforced Plastics; Fracture Thoughness; Fiber Orientation; Infrared
Thermography
Acknowledgement
This research was supported by the National Foundation of korea(NRF) grant funded by the korea
government (MISP) (No. 2017R1A2B4009646) and National Research Foundation of Korea(NRF)
funded by the Ministry of Education(No. 2016R1A6A03012069)
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Design and Production of 24 Sets of Horizontal Vertical Diffusion Tank
Compatible Test System
Mengyan Gao1, Xiangfan Piao2,#
1 Electronic Information Department, Engineering Institute Yanbian University,
2 Ministry of Education, Yanji, 133002, China
#Xiangfan Piao / E-mail: [email protected], TEL:+86-0433-2732243
Abstract
The primary method of in vitro diffusion testing of transdermal formulations is the diffusion cell
method. Transdermal absorption experiments must be carried out in a simulated in vivo environment
before the new transdermal skin drug is put on the market. In order to improve the working efficiency
of the diffusion cell, this paper developed a 24-group vertical and horizontal diffusion cell
compatibility diffusion system. The system increases the sampling port of the diffusion cell, increases
the effective diffusion area, reduces the volume of the diffusion cell, and fixes the two diffusion cells
with special steel clips. Using a dry heater and attaching it to the bottom of the heating block is for
heating to reduce the system volume. The system uses 102 coils to generate a rotating magnetic
field, magnetic stirring by rotating magnetic field, to realize the rotation and speed control of the
stirring rod, thereby achieving the purpose of evenly mixing the reactants in the diffusion pool, and
overcoming the large volume of the conventional DC motor, such as: the driving brush has large
volume, short life and high noise, and achieves the characteristics of high stirring, uniform mixing
and strong controllability. In addition, more sets of transdermal diffusion samples can be processed
in the same time.
Keywords: Compatibility; Transdermal Diffuser; Transdermal Drug Delivery
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Design of Combined System of Multi-channel Liquid Phase
Microextraction System and Gas Chromatography
Xinjie Zhang1, Xiangfan Piao2,#
1 Electronic Information Department, Engineering Institute, Yanbian University
2Ministry of Education, Yanji, 133002, China
#Xiangfan Piao / E-mail: [email protected], TEL:+86-0433-2732243
Abstract
The combined system of multi-channel liquid phase microextraction system and the gas
chromatography realizes simultaneous pretreatment of multiple sets of samples, which greatly
reduces the time and effort required for sample pretreatment. Moreover, the system is designed to
automate the injection of gas chromatography, which reduces unnecessary errors caused by manual
operation in the experimental process. In addition, the system uses a combination of technology and
inerts gas properties to rapidly squeeze the sample to be tested into the gas chromatograph inlet by
high pressure, which combines gas chromatography and multi-channel liquid phase microextraction
system. In the experiment, the extraction solvent instrument internal standard was added to the
sample cannula, and the inner cannula was placed in a gas phase bottle and placed on the GC
automatic sample introduction stage to start extraction. Finally, the comparison between the
experimental group and the control group by GC-MS analysis showed that the average recovery of
the system was higher than 70%, and the relative standard deviation between channels was below
15%.
Keywords: Multichannel Lliquid Phase Microextraction; Gas Chromatography; Combined
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
A Study on Optimization of Ball End-mill Geometry Using FEM
Jong Min Lee1, Tae Jo Ko1, #, Ye In Kwak1, Farooq Ahmed1
1 School of Mechanical Engineering, Yeungnam University, 214-1 Dae-dong, Gyeongsan-si,
Gyeongsangbuk-do 712-749, South Korea
# Corresponding Author / E-mail: [email protected], TEL: +82-53-810-3836, FAX: +82-53-810-4627
Abstract
The purpose of this study is to observe how the cutting force and cutting temperature occur as the
geometry conditions change of the ball end-mill and optimize of end-mill’s geometry. The parameters
of ball end-mill are very diverse, some factors have a profound effect on cutting force and cutting
temperature. This study focuses on the rake angle, relief angle, and helix angle of Ball end-mill
geometry as main parameters. Each factors are made up of 5 levels and Taguchi method is used to
make 25 analysis conditions for geometry optimization. Cutting tool is 2 flute ball end-mill which
diameter is 2 mm and material is Wo/Co, workpiece is SKD61( 52) which has 25 degree inclined.
The Advantedge simulation software was used to optimize of ball end-mill geometry. in addition, real
tool are manufactured for verifying reliability of FEM software, compare the finite element analysis
with the actual machining.
Keywords: Ball End-mill, FEM, Cutting Force, Cutting Temperature, Geometry Optimization
Acknowledgement
This work was supported by the Technology Innovation Program or Industrial Strategic Technology
Development Program (10067064, Development of tungsten carbide and PCD tools for high-quality
finishing of high-precision parts and molds) funded by the Ministry of Trade, Industry & Energy
(MOTIE, Korea)
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Effective Burr Removal Mechanism During Drilling of CFRP using
Helical Groove Drill Bit
Zhen Yu1, Tae Jo Ko1, # and Ki Moon Park1
1 School of Mechanical Engineering, Yeungnam University, 214-1 Dae-dong, Gyeongsan-si,
Gyeongsangbuk-do 712-749, South Korea
# Corresponding Author / E-mail: [email protected], TEL: +82-53-810-3836, FAX: +82-53-810-4627 (Arial 9)
Abstract:
Drilling holes on carbon fiber reinforced plastics (CFRP) is the most common method during
assembly of aircraft components. However, the burrs around hole are easily generated due to the
anisotropic nature of the CFRP. It is a major problem that many researchers are finding a method to
minimize the burr formation or removal. Based on the burr generation mechanism, this paper
presents a new helical groove attached drill bit for drilling of CFRP. In addition, the three-dimensional
cutting model was also established based on the new drill bit, and the burr removal mechanism was
analyzed. Two cutting operations, namely drilling and deburring, were performed sequentially with
the new structure drill bit. During drilling, the helical cutting edge removed the burrs attached at the
entrance and exit of the hole while tool in-feeding and retracting from the hole. Further, the
performance of the new drill bit was evaluated in terms of thrust force, surface roughness, burr
morphology, and burr removal. The experimental results showed that the new structure drill bit can
greatly improve the hole quality with improved burr removal rate.
Keywords: CFRP; Drilling; Burr; Delamination; Helical Groove
Acknowledgement
This work was supported by the Technology Innovation Program (10053248, Development of
Manufacturing System for CFRP (Carbon Fiber Reinforced Plastics) Machining), which is funded by
the Ministry of Trade, Industry & Energy (MOTIE, Korea).
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Optimization of Temperature Control System
for 3-D Curved Cover-glass Molded Shapes
Soon Uk KIM1 and Seong Dae CHOI2,#
1 Addfine Technology co., LTD., 161-5 Gongdan-Ro, Gumi City, Gyeongbuk, Republic of Korea.
2 Department of Mechanical System Engineering, Kumoh National Institute of Technology,
61 Daehak-Ro, Gumi City, Gyeongbuk, Republic of Korea.
# Corresponding Author / E-mail: [email protected], TEL: +82-54-478-7396, FAX: +82-54-478-7319
Abstract
The three-dimensional cover glass is constructed using the RVCP process, which proceeds in the
weight-absorbing-rolling press-west cooling phase, when the glass reaches the softening point
through heating. What is important in the RVCP technique is the process of glass input, vacuum and
roll at the correct temperature point. In order to make up for the disadvantages of the gravity system
of itself, a cooling device for prolonging the life of NIR Lamp by high temperature heating is designed
and applied to provide a curved surface shape in molding to a suction mold. To gradually apply an
air-cooled cooling function to control a problem to be restored during cooling. In order to improve
heat transfer characteristics, a large-sized (more than 900 mm in length) material to which a material
of SUS304 and a material of Ceramic (silicon carbide) are applied is requested to a processing
maker.
Keywords: 3-D Curved Cover-Glass Mold, RVCP (Re-heat Vacuum Cold mold Press) process, NIR
Lamp, Large-sized Glass
Acknowledgement
This work was supported by the Technology Innovation Program (20005790) funded By the Ministry
of Trade, Industry & Energy (MOTIE, Korea).
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Study on Vibration analysis and Control of a Machine Tool
Gi Man KIM1 and Seong Dae Choi1,#
1 Department of Mechanical System Engineering, Kumoh National Institute of Technology,
61 Daehak-Ro, Gumi City, Gyeongbuk, Republic of Korea.
# Corresponding Author / E-mail: [email protected], TEL: +82-54-478-7396, FAX: +82-54-478-7319
Abstract
Machines used in industrial fields are influenced by vibrations that induce and occur around them.
In the case of machine tools, vibrations being induced by the internal and the external sources are
regarded as major hazardous factors for the accuracy of machining. Therefore, a reduction method
of vibration predicted during operation is an important design element. The methods of the vibrations
control in machines are mentioned as follows;
1. Redesign of the physical properties of the vibrator and the vibration receiving part
2. The vibration isolation between the vibrators and the vibration receiving part
3. Reduction of vibration through dynamic damper
There are many examples that can be achieved through three major methods:
In this research, the flow of vibration energy to each connected structure is analyzed through a
theoretical model for vibration predicted during operation of a machine structure manufactured by a
complicated combination, and various control conditions are studied for energy transmitted in each
part.
Keywords: Machine Tool, Vibration, Dynamic Damper, Controlling the Vibrations
Acknowledgement
This paper was supported by Kumoh National Institute of Technology.
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Development of automatic attachment device
for Display Driver IC Protection of Thin Film Metal Foil
Young Hyung KIM1 and Seong Dae CHOI2,#
1 Department of IT Convergence, Kumoh National Institute of Technology,
61 Daehak-Ro, Gumi City, Gyeongbuk, Korea.
2 Department of Mechanical System Engineering, Kumoh National Institute of Technology,
61 Daehak-Ro, Gumi City, Gyeongbuk, Korea.
# Corresponding Author / E-mail: [email protected], TEL: +82-54-478-7396, FAX: +82-54-478-7319
Abstract
DDI stands for Display Driver IC (Integrated Circuit) and is a small semiconductor chip that is used
to operate numerous pixels that make up displays such as OLED and LCD. Signals for display to
express information on screen are sent to panel via DDI through circuit board called PCB. At this
point, the DDI orders each pixel to act. DDI controls pixels through TFT (Thin Film Transistor) inside
a display panel, rather than issuing commands to pixels directly. To ensure stable operation of DDI,
protective film that shields electromagnetic waves around the DDI (Chip on Film) is required. In
addition to electromagnetic shielding, these protective films have recently been attached to the DDI
with shielding of metal (mainly copper) materials that have EMI shielding function and circuit
protection function. In this study, EMI shielding film attachment to COF is developed to ensure that
it is accurate, fast and economically feasible.
Keywords: Display Driver IC, EMI Shielding Film, Automatic Attachment Device
Acknowledgement
This research is the result of support as part of the production technology commercialization support
project (transfer technology commercialization) organized by the Korea Industrial Complex
Corporation.
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Finite Element Simulation for Characterization of Laser Melting
Deposition
Gyeong Yun Baek 1,2 and Do-Sik Shim3,#
1 Department of Mechanical Engineering, Chonnam National Univ., 77 Yongbong-ro, Buk-gu,
Gwangju 500-757, South Korea
2 Smart Manufacturing Process Technology Center, KITECH, Wolchul-dong, Buk-gu, Gwangju
500-460, South Korea
3 Department of Ocean Advanced Materials Convergence, Korea Maritime and Ocean University,
727 Taejong-ro, Yeongdo-Gu, Busan 49112, South Korea
# Corresponding Author / E-mail: [email protected], TEL: +82-51-410-4354, FAX: +82-51-404-4350
Abstract
Write English abstract here. Abstract is to give a clear indication of the objective, scope, and results
of the paper and is to be 400 words maximum. It should be placed in the third space under the author
names. All of the text should be centered within the width. You are not allowed to include tables and
charts within your abstract.
Keywords: List the keywords covered in your paper; Use semicolon to separate keywords; Upper
case at the beginning of each keyword. Keywords should be written in English.
Acknowledgement
Authors may express their gratitude in Acknowledgement section, if they want. Acknowledgement
should be written in English
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
A Study on Tactile Sensor-Based Gripper Control System
Ki-min Jeong1, Hyun-Hee Kim1 Kyung-Chang Lee1#
1 Pukyong National University, Busan, Korea
# Corresponding Author / E-mail: [email protected], TEL: +82-51-629-6332, FAX: +82-51-629-6333
Abstract
Recently, the manufacturing industry has been automated and the field of robot application has been
expanding. In order to apply robots to various industrial fields, it is necessary to study the phage of
robot gripper. This study uses a tactile sensor that is sensitive to external stimuli for precise control
of the gripper. A tactile sensor attached to the gripper finger signals information generated in the
object phage and is transmitted to the controller. The designed tactile sensor-based gripper control
system converts information to external force into data. The signals of the tactile sensors are
feedback. It is possible to identify the condition of the gripper and contact with objects, etc. The
information of the object is analyzed and grasped based on the tactile sensor. In the future, research
is carried out to correct slip phenomena occurring in object phage.
Keywords: Tactile Sensor, Gripper, Robot Grasping, Gripper Control, Signal Processing
Acknowledgement
This work was supported by the National Research Foundation of Korea(NRF) grant funded by the
Ministry of Education the Ministry of Education(NRF-2016R1A6A3A11931489).
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Research on Positioning Error Compensation System of Ball Screw
Feed Drive Machine Tool
Zhen Qin1, Dongseon Kim1, Zhe-zhu Xu2 and Sung-ki Lyu1,#
1 Gyeongsang National University 900, Jinju, Gyeongnam, 660-701, Korea
2 University of Alberta, Edmonton, 7f ECERF, U of A, Edmonton, AB, Alberta, Canada
# Corresponding Author / E-mail: [email protected], TEL: +82-55-772-1632, FAX: +82-55-772-1578
Abstract
Ball screws are used in a wide variety of applications as a high precision feed drive system. A high
speed ball screw system generates more heat naturally and resultant more thermal expansion, which
adversely affects the accuracy of positioning. Therefore, an air cooling system was set in ball screw
shaft in this paper to dominate the thermal error and achieve temperature equilibrium faster. In order
to estimate the thermal error of ball screw system and effectiveness of air cooling system, thermal
behavior models of finite element method and modified lumped capacitance method were developed
separately which includes the heat generation power of the main heat source of the ball screw
system and other boundary conditions. The completed models were used to simulate the
temperature distribution, thermal deformation and air cooling performance. Compared with
experiments, it is shown that these methods can well predict the air cooling performance.
Keywords: Ball Screw, Thermal Error, Error Compensation, FEM, Calculation Method
Acknowledgement
This study was supported by Basic Science Research Program through the NRF of Korea(NRF)
funded by the MEST(NRF-2016R1D1A1A09920105)
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Stress Analysis of Asymmetric Gears
Tomoya MASUYAMA1,#
1 National Institute of Technology, Tsuruoka College, JAPAN
104 Sawada, Ino-oka, Tsuruoka
# Corresponding Author / E-mail: [email protected], TEL: +81-235-25-9037, FAX: +81-235-25-9037
Abstract
According to the ISO standard, tooth profile have a symmetric form and the pressure angle is 20
degrees. However, in general, gear pairs transmit different torque in one side face and the other side.
Therefore, necessity of symmetric form is low. Asymmetric profiles are expected highly freedom of
design of gears and they will enhance the load carrying capacity. In this study, considering the
bending stress history during gear rotation, the tooth root stress of various tooth profiles and each
meshing point by finite element method was calculated. As a result, not only the stress caused by
attracting tooth loading, compressive stress is produced by the load on the adjacent tooth. To clarify
the effect of adjacent tooth loading, stress ratio R was taken into the strength evaluation. It is known
that, stress ratio R of an ISO standard tooth profile at tooth fillet is -0.05 and R of an asymmetric
tooth profile at tooth fillet is -0.67. When evaluating load carrying capacity of gears, fatigue strength
of material is modified by using the Goodman diagram to considering the influence of stress ratio R.
Smaller R brings lower fatigue strength. Finally, we found the greatest torque capacity was at a
pressure angle 30 degrees. Furthermore, in the case of a tooth space is narrow, Influence of stress
ratio R is large. Reduced bending stress because of an increase in tooth thickness and decreased
the transmission torque capacity because of a reduction in the base circle radius and the
compressible stress on tooth fillet.
Keywords: Gear, Asymmetric Tooth Profile, Stress, Load Carrying Capacity
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Gear Whine with Virtual Designed Gearbox
Jiha Kim1,#, Seungwon Jeong 1
1Romax Technology Limited, Nottingham NG7 2PZ, United Kingdom
# Corresponding Author / E-mail: [email protected], TEL: ++44 (0)115-951-8800, FAX: ++44 (0)115-951-8800
Abstract
In automotive application, gear whine is a main unpleasant noise which is noticeable to passengers
even at relatively low levels. It is widely recognized that the characteristic gear whine is generated
by a constant harmonic displacement excitation, caused by errors in the actual tooth position with its
perfect tooth position, which is called Transmission Error (TE). 1 The vibrations excited by the TE
are transmitted through the gears, bearing under gears and shafts to the main bearings where they
are coupled to the housing and produce acoustic radiation. Much effort has been made to reduce
TE, hence decrease gear whine. However, TE has complex causes such as manufacturing and
assembly imperfection and elastic deflection of shafts, bearing and gear tooth itself, and housing
deformation. Moreover, gear whine is a tightly system dependent noise which means a slight change
in any parts of gearbox may lead to different system resonant frequency. Therefore, system-level
investigation is necessary to guarantee the accuracy and reliability of design.
Bearing act as a spring with mass in transmitting vibration and its stiffness directly affect vibration
level from internal shaft to the housing which will finally radiate as a noise. 2,3Nonlinear stiffness of
bearing may be decided by macro and micro geometry, applied load, assembly conditions, etc. This
paper will simulate the bearing preload effect on system response of specified TE excitation with one
virtual-designed 5-speed manual transmission gearbox.
Keywords: Gear Whine, Transmission Error, Bearing Preload, Romaxdesigner
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
A Study on the Calculation Method of Ball Screw Feed Drive
Xiaojing Liu1 and Zhezhu Xu1,#
1 University of Alberta, Edmonton, 7f ECERF, U of A, Edmonton, AB, Alberta, Canada # #
Corresponding Author / E-mail: [email protected], TEL: +1-10-9633-8848, FAX: +1-10-9633-8848
Abstract
According to requirement of development of precision manufacturing industries, accuracy of
machine tools was became a key issue in this field. One of the critical factor that affect the accuracy
of machine tool is the feed system which driven by a ball screw in general. Basically, in order to
improve the performance of feed drive system which will thermally extended on length direction by
continuous usage, thermal error compensation system which is highly dependent on the feedback
temperature or positioning data was employed in a machine tool system. Due to the overdependence
on measuring technology, cost of compensation system and low productivity level is an inevitable
problem in machine tool industries. This paper presents a novel method in feed drive thermal error
compensation system which could able to compensate thermal error without positioning or
temperature feedback. In this thermal error compensation system, heat generation of components,
principal of compensation, thermal model, mathematic model and calculation method were
discussed respectively. As the results, the test data can confirm the correctness of the developed
feed drive thermal error compensation system very well.
Keywords: Ball Screw, Thermal Error, Feed Drive, Error Compensation, Calculation Method
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Performance of EDM assisted Milling based on a Novel Tool
Changping Li1#, Shujian Li1, Pengnan Li1, Qiulin Niu1, Xinyi Qiu1 and Tae Jo Ko2#
1 School of Mechanical Engineering, Hunan University of Science and Technology, Xiangtan
411201, China
2 School of Mechanical Engineering, Yeungnam University, Dae-dong, 38541, South Korea
# Corresponding Author / E-mail: [email protected], TEL: +86-0731-58290847
Abstract
Electro discharge machining (EDM) assisted milling is an effective method for cutting difficult-to-
machine materials. A new tool for EDM-assisted milling was developed in this study. The tool
consists of two cemented carbide inserts and two copper electrodes. The cemented carbide inserts
can easily milling materials melted by EDM. The new tool makes the discharge energy easier to
control than the traditional milling cutter. This study investigates machined surface on high strength
steel. In this study, the experiment of milling high strength steel (STD11, HRC 60) was carried out
using the new tool and traditional milling cutters. In addition, tool wear, surface roughness and cutting
force were investigated. It is shown that the EDM assisted milling with new tool may reduce the tool
wear and cutting force than traditional milling. Furthermore, the surface roughness has also been
greatly improved.
Keywords: EDM assisted milling; New tool; Tool wear; Surface roughness
Acknowledgement
This work was supported by the General Project of Hunan Education Department (No. 18C0323)
and the School-level Scientific Research Projects of HNUST (No. E51781).
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Pull-off Test and Analysis of CFRP Hat-shaped Structure
Shujian Li1#, Pengnan Li1, Changping Li1, Qiulin Niu1 and Tae Jo Ko2
1 School of Mechanical Engineering, Hunan University of Science and Technology, Xiangtan
411201, China
2 School of Mechanical Engineering, Yeungnam University, Dae-dong, 38541, South Korea
# Corresponding Author / E-mail: [email protected], TEL: +86-0731-58290847
Abstract
As a kind of typical structure, the hat-shaped structure (HSS) is widely used in carbon fiber reinforced
plastics (CFRP) aircraft parts. In this work, two cases of force analysis of R-regions in HSS under
pull-off load were presented. Based on the commercial software ABAQUS, a finite element model
was developed to study the failure behavior of R-regions in HSS. A series of HSS samples were
fabricated by co-curing process. The pull-off tests of HSS were conducted to validate the finite
element model, and the failure mechanism of R-regions was further studied by characterizing the
macro-microstructure of R-regions in HSS under pull-off load. Results showed that the structural
bearing capacity of HSS can be improved by strengthening in R-regions. After strengthening in R-
regions, the pull-off load was borne by multiple interfaces, and the interlaminar interface pull-off
strength can increase by 38.8%.
Keywords: CFRP; Failure analysis; Hat-shaped structure; Pull-off load
Acknowledgement
This work was supported by the National Natural Science Foundation of China (No. 51775184 and
No. 51605161), the Excellent Youth Project of Hunan Education Department (No. 18B382) and the
General Project of Hunan Education Department (No. 18C0306).
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Tool Structure Optimization Based on Edge Force Coefficient
Xinyi Qiu1, Pengnan Li1#, Anhua Chen2 and Changping Li1
1 School of Mechanical Engineering, Hunan University of Science and Technology, Xiangtan
411201, China
2 Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment, Hunan
University of Science and Technology, Xiangtan 411201, China
# Corresponding Author / E-mail: [email protected], TEL: +86-0731-58290973
Abstract
In the process of CFRP drilling, the thrust force is the key factor to cause delamination. According
to the characteristics of the time-varying curve of the thrust force of a straight-edged drill, the
method of predicting the key inflection points on the time-varying curve of the thrust force is
proposed. The results show that the time-varying curve of the thrust force of a straight-edged drill
can be better predicted, and the thrust force increases linearly when the straight-edge cuts in. The
distribution of the thrust force on the main cutting edge of a typical straight-edge drill (double point
angle drill) is analyzed to study the influence of processing parameters on the edge force
coefficient, to establish the equation of the thrust force based on the edge force coefficient, to
research the influence of the change of the main cutting edge on the thrust force and to provide a
reference for design of special drilling tools for CFRP.
Keywords: CFRP; Drilling; Thrust force; Edge force coefficient
Acknowledgement
The work is supported by the National Natural Science Foundation of China (No. 51775184,
No.51275168, No.51605161), and supported by the Hunan provincial Natural Science Foundation
of China (No.2015JJ5028).
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Study on Effect of Vibration Amplitude on Cutting Performance of
SiCp/Al Composites during Ultrasonic Vibration assisted Milling
Lu Jing1, Qiulin Niu1#, Chunhao Wang1, Daohui Xiang1, Xiao Liu1
1 School of Mechanical Engineering, Hunan University of Science and Technology, Xiangtan
411201, China
# Corresponding Author / E-mail: [email protected], TEL: +86-0731-58290847
Abstract
The effect of amplitude on the machinability of SiCp/Al composites during high speed milling was
studied by means of ultrasonic vibration assisted machining. The results show that the influence of
amplitude on cutting force is small, and the cutting force increases slowly with the increase of
amplitude. However, when the amplitude is 3μm, the cutting force is abrupt. At this time, the
surface roughness value changes particularly obvious, the surface appears a large number of
matrix material coating phenomenon. On the other hand, with the increase of amplitude, the
surface morphology deteriorates further, the pit becomes larger and a large number of microcracks
appear. The bending degree of chips gradually decreases with the increase of amplitude, but the
macroscopic morphology of chips is more irregular, and a large number of serious cracks appear
on the smooth surface of chips. The results show that the amplitude of no more than 3μm is an
important parameter to improve the milling machinability of SiCp/Al composites.
Keywords: SiCp/Al composites, Milling, Vibration Amplitude, Cutting Performance
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
A Study on the Analysis of Flow Rate According to Proper
Discharge Rate of Drainage Pump and the Body Bolt Hole Shape for the
Crossing of River a Test of Combat Equipment
Dae Un Kim1,#, Gwi Tae Moon1, Chang Hyun Cho1, Ki Joong Lee1
1 Consolidated Maintenance Depot Republic of Korea Army, St. Uichang-daero 783, Dong-eup,
Uichang-gu Changwon-si Gyeongsangnam-do Republic of Korea.
# Corresponding Author / E-mail: [email protected], TEL: +82-55-252-7355, FAX: +82-55-252-4738
Abstract
Army combat equipment often has to cross rivers over terrain conditions, and rivers with low depths
and narrow widths are designed to cross over on their own. The most important thing is to minimize
the inflow of water first, and secondly, to discharge the inflow water using a drainage pump. The
purpose of this study is to investigate the importance of bolt and drain pump discharge to the outside
of Army combat equipment body. First, assuming that 5/8 inch bolt fastening is missing, we
investigated the amount of water inflow according to the shape of the hole through fluid analysis and
experiment. As a rssult, it was confirmed that the water inflow amount of the bolt hole of the helical
shape is smaller than that of the straight bolt hole. It can be seen that the flow energy losses were
caused by the vortex caused by the thread. It was also found that there is a risk that if one is
immersed in water for a long time, only one bolt hole could flood the combat equipment sufficiently.
Secondly, we compared the discharge amount per minute and the amount of water flowing from the
virtual bolt hole to check the importance of the drain pump. As a result, the amount of water flowing
in a maximum of 10 blot hole and the discharge amount of the drain pump were equalized. The
results show that even a single bolt hole can flood the combat equipment, so it is necessary to check
and care for the maintenance. In addition, since the operation of the drainage pump can prevent
flooding of the combat equipment with respect to the inflow of water below a certain level, it is
confirmed that the discharge amount of the drainage pump is also important to check.
Keywords: Army combat equipment, Vortex, Thread, Bolt hole, Drainage pump, Flooding,
Discharge, Maintenance
Acknowledgement
This study has received technical advice on research direction from the Director of Military Executive
Agency and engineering approach from the Head of Research Center.
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Classification of non-coding regions in DNA using Deep learning
Hilal Tayara1 and Kil To Chong2,#
1 Department of Electronics and Information Engineering, Chonbuk National University, Jeonju
54896, South Korea
2 Advanced Electronics and Information Research Center, Chonbuk National University, Jeonju
54896, South Korea
# Corresponding Author / E-mail: [email protected], TEL: +82-63-270-2478, FAX: +82-63-270-2451
Abstract
Understanding the function of non-coding DNA regions is import in the field of genomics as these
regions occupy 98% of the human genome and responsible for 93% of disease-associated variants.
However, this task is a challenging one because the function of the majority of these regions is still
not understood well. In this work, we introduce a computational model of the non-coding DNA regions
using deep learning. The proposed system learns a regulatory sequence code from large-scale
chromatin profiling datasets including DNase I sensitivity, histone-mark and transcription factor
binding sites. Our proposed system is based on an adapted version of Inception model which was
basically designed for image classification task. In order to train the proposed system, we prepare
the input and output of the computational predictive model as follows: we divide the human GRCh37
reference genome into non-overlapping 200-bp bins. The target of each region is obtained by
intersecting 919 DNase-seq and Chip-seq peak set from Roadmap Epigenomics and ENCODE data
releases. Thus, the output of each input is a binary target vector with a length of 919. The input of
the system is 1000-bp sequence centered on a 200-bp. However, the input is represented as an
array with a shape (1000, 6). Each 1000-bp input sequence is one-hot encoded into a 1000 x 4
binary array where the columns correspond to A, G, C, and T. The fifth column of the input sequence
is obtained from conservation track. The last column of the input is obtained from the 35-bp
mappability uniqueness track. Finally, we add handcrafted features that are extracted from the input
DNA sequence such as the frequency of each nucleotide, 2 k-mer permutations, and 3 k-mer
permutations. Our proposed system outperforms the state-of-the-art methods such as DeepSEA and
DanQ in terms of area under curve (AUC) and the area under precision-recall curve (aucPR).
Keywords: Computational Biology, Deep Learning, DNA, Non-coding Regions
Acknowledgement (Arial 11 boldface capital)
This research was supported by the Brain Research Program of the National Research Foundation
(NRF) funded by the Korean government (MSIT) (No. NRF-2017M3C7A1044815)
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Press-Forming of GFRP For Automobile Suspension Coil Spring
Jungkyu Shin1, Jaeki Kwon1
1 Principal Research Engineer, Youngheung Iron and Steel located in Bo-ryung, Republic of Korea
# Corresponding Author / E-mail: [email protected], TEL: +82-31-353-0353, FAX: +82-54-530-1278
Abstract
The development story about Glass-fibered reinforced plastic (GFRP) replacing heavy steel of
suspension coil spring is introduced. Many trials are followed to make GFRP coil spring to meet
design specification for suspension application and test specification for practical use. Because
basic studies were not performed, many trail-and-errors are necessarily not avoidable during the
development. To improve the section quality of coil spring, press-forming is applied during thermal-
setting and therefore, the compression test can be satisfied. The results including section studies
are shown in detail.
Keywords: Glass Fiber Reinforced Plastic; Braiding; Suspension Coil Spring; Compression Test;
Press-forming
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Simulation Analysis of Flexible Track Drilling Machine Based on ADAMS
Zhonggang Zhu1, Qi Zhang1,#, Jianhua Lv1
1 R&D Dept., Zhejiang Shuanghuan Driveline Co., LTD., Zhejiang, China, 317-600
# Corresponding Author / E-mail: [email protected], TEL: +86-576-8723-9883, FAX: +86-576-8723-9827
Abstract
Flexible track drilling machine is credited with important application in the area of aircraft
manufacturing with the advantages of portable, quick installation and high efficiency. But the
structure is special, the constitution principle and the motion characteristic are difficult to control,
making the cost of development high and research cycle long in the context of technology
blockade of foreign companies. By the application of Virtual Prototype Technology, simulation
analysis of flexible track drilling machine can be carried out, shortening the development cycle and
reducing the cost. In this paper, the model of the machine was established by using the software of
SolidWorks and imported into ADAMS to do kinematic and dynamic simulation analysis. During the
analysis, the feasibility of the configuration was checked, the reasonable driving motion was
chosen, the potential deficiencies were found and improvement actions were raised.
Keywords: Flexible Drilling Machine; Virtual Prototype; ADAMS; Simulation Analysis
Acknowledgement
This study was supported by R&D Dept. of Zhejiang Shuanghuan Driveline Co., LTD.
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Proceedings of the 5thInternationalConference on Manufacturing Process Technology 2019 Yanbian University in China,August 21 ~ 24, 2019
Study on Three-dimensional Printing of Porous 316L Stainless Steel by
3DP Method with Water-based Binder
Jianming Yang1#, Yang Tang1, Dazhi Huang1 and Yunfei Ding1
1School of Mechanical and Ocean Engineering, Jiangsu Ocean University, No.59 Cangwu Road
Haizhou District , Lianyungang, Jiangsu, 222005, China
# Corresponding Author / E-mail: [email protected], TEL: +86-518-85895330, FAX: +86-518-85895323
Abstract
The green bodies were fabricated by 3DP method of 3D printing technology, in which two sticky
powders of Polyvinyl Alcohol (PVA) and starch were mixed with 316L stainless steel powder, and a
water-based solution was jetted to the mixed powder. After being debonded and sintered in the
vacuum, the printed parts of porous stainless steel were obtained. The effects of PVA content in the
mixed powder and sintering temperature on dimensional shrinkage, porosity, mechanical properties,
tensile fracture morphology and carbon content of the printed parts were studied in this paper. The
results show that with increasing of PVA content, the shrinkage, porosity and carbon content of the
printed parts increase, while mechanical properties don’t simply increase or decrease. On the other
hand, with increasing of sintering temperature, the shrinkage and mechanical properties increase,
porosity and carbon content decrease, and it appears on the morphology of tensile fracture that the
metallurgical bonding of powder particles get more compact. At last the properties of the printed
parts are compared with that of bulk stainless steel of 022Cr17Ni12Mo2 (316L) and the
corresponding value required for medical implant materials.
Keywords: Three-dimensional Printing; 3DP Method; Porous Metal; Water-based Binder;
Mechanical Property.
Acknowledgement
The research described in this publication was made possible by financial support of the open
Foundation of Jiangsu Key Laboratory of 3D Printing Equipment and Application Technology,
Nantong Institute of Technology (No.2017KFKT01), Natural Science Foundation of Lianyungang (No.
CG1515).
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Proceedings of the 5thInternationalConference on Manufacturing Process Technology 2019 Yanbian University in China,August 21 ~ 24, 2019
Microstructure and Properties of Ni/Al2O3 Composites Prepared by
Powder Injection Molding
Feng Shang1,2#, Zhenwei Cao3, Peng Zhang1, Bin Qiao1 and Huaqiang Li1
1 School of Mechanical Engineering, Huaihai Institute of Technology, No.59 Cangwu Road
Haizhou District , Lianyungang, Jiangsu, 222005, China
2 Marine Resources Development Institute of Jiangsu, No.108 Tongguan South Road Haizhou
District, Lianyungang, Jiangsu, 222001, China
3 School of Mechanical and Electrical Engineering, China University of Mining and Technology,
No.1 Daxue Road, Xuzhou, Jiangsu, 221116, China
# Corresponding Author / E-mail: [email protected], TEL: +86-518-85895323, FAX: +86-518-85895323
Abstract
Ni/Al2O3 composite was prepared by powder injection molding, the effects of Ni content and different
sintering process on the microstructure and mechanical properties of Ni/ Al2O3 composites were
studied .The results show that when the Ni content is 10%, the comprehensive performance of Ni/
Al2O3 composite is better. The optimum vacuum sintering process of 10%Ni/ Al2O3 composite is as
follows: sintering temperature of 1500 ℃ for 1 hour, with the relative density of 96.7%, bending
strength of 312 MPa, Vickers hardness of 1528HV and fracture toughness of 5.3 MPa•m1/2.
Keywords: Sintering Process; Powder Injection Molding; Ni/Al2O3 Composite; Microstructure;
Property.
Acknowledgement
The research described in this publication was made possible by financial support of the open
Foundation of Jiangsu Key Laboratory of Large Engineering Equipment Detection and
Control(No.JSKLEDC201506) , Natural Science Foundation of Lianyungang (No. CG1514).
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Boundary Lubrication in Transient Elliptical Contact
Dichu Xu1,2, Qi Zhang 3,# and Jiugen Wang2
1 Institute of Functional Surfaces, School of Mechanical Engineering, University of Leeds, Leeds,
UK, LS2 9JT
2 College of Mechanical Engineering, Zhejiang University, Hangzhou, Zheijiang, China, 310027
3 R&D Dept., Zhejiang Shuanghuan Driveline Co., LTD., Zhejiang, China, 317-600
# Corresponding Author / E-mail: [email protected], TEL: +86-576-8723-9883, FAX: +86-576-8723-9827
Abstract
One of the main aims in engine oil development is to reduce frictional losses in tribological contacts.
Nowadays, oils with low viscosity are widely used. However, this will result in tribological systems
being run under boundary lubrication. In this work, a deterministic model consisting of the elasto-
plastic contact model and a pure squeeze lubrication model is developed under the transient
boundary lubrication regime. By implementing the proposed numerical procedure, the simultaneous
solution is feasible for any pre-set time steps. Additionally, the effects of fluid film entrapment and
leakage were numerically analyzed, and then a better understanding of the squeeze film lubrication
mechanism in the transient boundary lubricated contacts was obtained. Lastly, the simulation results
were in a good agreement with the previous experimental research, which justifies the present model
is feasible in the transient boundary lubrication regime.
Keywords: Boundary lubrication; Squeeze film effect; Junction growth; Leakage; Boundary friction
Acknowledgement
Authors may express their gratitude in support by National Natural Science Foundation of China
(Grant No. 51375436).
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
A Study on the Friction and Wear Properties of 45 Steel、TiN and TiAlN
Yuanming LI 1, Huibo He1,# and Huaying Li1,2
1 College of Engineering and Technology, Southwest University, Chongqing 400715, China
1,2 School of Mechanical & Aerospace Engineering, ReCAPT(K-MEM R&D Cluster), Gyeongsang
National University, Jinju, South Korea, 660-701
# Corresponding Author / E-mail: [email protected], TEL: +86-23-6825-1265, FAX: +86-23-6825-1265
Abstract
TiN coatings and TiAlN coatings were deposited on steel 45 substrates by Physical Vapor
Deposition (PVD). Friction and wear tests were performed to evaluate performances of 45 steel,
TiN and TiAlN coatings using three kinds of loads and five kinds of loads, respectively. Wear loss
of steel 45, TiN coatings and TiAlN coatings had been assessed by means of surface profile
detector. The critical loads of TiN coatings and TiAlN coatings were tested by scratch-adhesion
tests. Results of the investigation show that the friction coefficients of TiN coatings and TiAlN
coatings have larger decreased trends with the increase of load. TiAlN and TiN have the functions
of decreasing friction coefficient. And the effect of TiN is better than that of TiAlN. Wear loss of
steel 45, TiN and TiAlN increases with increasing loads. TiN coatings and TiAlN coatings have the
remarkable wear resistance abilities than that of steel 45. And TiAlN coatings have higher wear
resistance performances that TiN coatings. The specific wear rate of steel 45 presents a trend of
linear change. TiAlN coatings and TiN coatings approximate nonlinear change. The critical load of
TiN coatings is higher than that of TiAlN coatings.
Keywords: Friction Coefficient; Specific Wear Rate; Critical Load; Wear Loss
Acknowledgement
This work was supported by the Fundamental Research Funds for the Central Universities of
Ministry of Education of the People’s Republic of China XDJK2013D015, XDJK2012C002.The
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
authors would like to acknowledge the Korea Industrial Technology Foundation at Gyeongsang
National University, S.Korea.
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Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Study on Cutting Force and Cutting Temperature in Dry Cutting of 20Cr
Steel
YUE Qi-bin1, HE Hui-bo1,#, LI Hua-ying1,2, ZHANG Xian-yin1, Jiang Xue1
1 College of Engineering and Technology, Southwest University, Chongqing 400715, China
2 School of Mechanical & Aerospace Engineering, ReCAPT(K-MEM R&D Cluster), Gyeongsang
National. University, Jinju, South Korea, 660-701
# Corresponding Author / E-mail: [email protected], TEL: +86-23-6825-1265, FAX: +86-23-6825-1265
Abstract
A study on the dry turning process of 20Cr steel on the CA6140A lathe was carried out using the
cemented carbide tools of three different materials and changing three cutting parameters. The
influences of the three cutting parameters on the cutting force and cutting temperature were
investigated and the cutting test results of the three different cutting tools were obtained. Then the
three-dimensional finite element simulation software---Deform 3D was used to simulate the dry
turning process of 20Cr steel, and the simulation results of cutting force were compared with the test
results. The analysis result demonstrated that the cutting depth had the greatest influence on the
cutting force of 20Cr steel, followed by feeding rate and cutting speed, and the cutting speed has the
greatest influence on the cutting temperature, followed by the feeding rate and the cutting depth.
The TiN coating can effectively reduce the cutting force and cutting temperature. The error between
the simulation result of the cutting force and the test result is within the acceptable range (2.1% ~
11.8%). It is proved that the finite element simulation software is feasible to predict the cutting force
of the 20Cr steel.
Keywords: 20Cr Steel; Cutting Force; Cutting Temperature; Cutting Parameter
Acknowledgement
This work was supported by the Fundamental Research Funds for the Central Universities of Ministry
of Education of the People’s Republic of China XDJK2017C081.The authors would like to
acknowledge the Korea Industrial Technology Foundation at Gyeongsang National University,
S.Korea.
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Proceedings of the 5thInternationalConference on Manufacturing Process Technology 2019 Yanbian University in China,August 21 ~ 24, 2019
Research Status of Low Pressure Casting Aluminum Alloy Wheels
Lichao Feng1,#
1 School of Mechanical Engineering, Huaihai Institute of Technology, No.59 Cangwu Road
Haizhou District , Lianyungang, Jiangsu, 222005, China
# Corresponding Author / E-mail: [email protected], TEL: +86-518-85895321, FAX: +86-518-85895321
Abstract
steel wheels due to their light weight, high thermal conductivity, good formability and beautiful
appearance. Low-pressure casting is the main production method of aluminum alloy wheels today.
This paper briefly introduces the low-pressure casting aluminum alloy wheels. The basic overview
and preparation principle, the research progress of forming process, casting equipment automation
and mold optimization, wheel aluminum alloy chemical composition and heat treatment process
are introduced, and the development trend of aluminum alloy automobile wheel hub production
technology is prospected.
Keywords: Aluminum Alloy Hub; Low Pressure Casting; Preparation Principle; Forming Process
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Proceedings of the 5thInternationalConference on Manufacturing Process Technology 2019
Yanbian University in China,August 21 ~ 24, 2019
Effects of Matrix Components on Microstructure and Properties of
SiCP/Al-Fe-V-Si Composites
HE Yi-qiang1,2, QIAN Chen-chen1,2, XU Hu-lin1,2, CHEN Jin-song1,2, LI Hua-qiang1,2, FENG Li-
chao1,
1 School of Mechanical Engineering, Jiangsu Ocean University, No.59 Cangwu Road Haizhou
District , Lianyungang, Jiangsu, 222005, China
2 Marine Resources Development Institute of Jiangsu, No.108 Tongguan South Road Haizhou
District, Lianyungang, Jiangsu, 222001, China
# Corresponding Author / E-mail: [email protected], TEL: +86-518-85895325, FAX: +86-518-85895323
Abstract
Spray deposited SiCP/Al-Fe-V-Si composites were densified by twice hot pressing and subsequently
multi-pass hot rolling. Scanning electron microscope, transmission electron microscope and tensile
test were used, and effects of matrix alloy components and Fe/V ratio on microstructures,
mechanical properties and hot resistance of the composite were analyzed. The results show that:
The composites as-rolled are characterized with high volume fraction Al12(Fe,V)3Si dispersoids, and
volume fraction of the dispersoids increases with Fe content increasing. Volume fraction of
Al12(Fe,V)3Si dispersoids are up to 40% when Fe content of the matrix alloy is 11.5%(in mass
fraction). Al12(Fe,V)3Si dispersoids of 50~80nm in diameter distribute along the grain boundaries,
and exhibit excellent thermalstability. However, the Fe atoms diffuse in the form of bulk diffusion,
and accordingly the dispersoids both along the grain boundaries and in the grains coarsen at a
relative high velocity. Coarsening velocity of Al12(Fe,V)3Si dispersoids falls with rise of Fe/V ratio.
Strength of the composite increases with Al12(Fe,V)3Si dispersoid volume fraction increasing, and
decreases with tensile temperature being elevated. And elongation of the composite decreases both
with rise of Al12(Fe,V)3Si dispersoid volume fraction and tensile temperature.
Keywords: Al-matrix composite; Spray deposition; Matrix Component; Particle Reinforcement;
Microstructure;.Acknowledgement
The research described in this publication was made possible by financial support of Natural Science
Foundation of Jiangsu(BK20141250);Natural Science Foundation of HHIT(Z2017001); Lianyungang
521 Project(zkk201805); Jiangsu Liuda Human Resource(No. JXQC-058), Jiangsu Qinglan Project.
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Proceedings of the 5thInternationalConference on Manufacturing Process Technology 2019 Yanbian University in China,August 21 ~ 24, 2019
Research on Preparation of Copper Based Superhydrophobic Surfaceby
Jet Electrodeposition
HUANG Dazhi1,2, TIAN Zongjun1, LIU Zhidong1, SHEN Lida1, QIU Mingbo1,
CHEN Jinsong2, MA Shiwei2
1College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and
Astronautic, Nanjing 210016,China
2 Jiangsu Province R&DInstitute ofMarine Resources, Huaihai Institute of Technology,
Lianyungang 222005, China
# Corresponding Author / E-mail: [email protected], TEL: +86-518-85895325, FAX: +86-518-85895325
Abstract
Superhydrophobic materials have broad application prospects in oil-water separation, non-
destructive transportation and corrosion resistance. Jet electrodeposition technology has many
advantages such as easy control, high efficiency, low cost and selectivity, which shows strong
advantages in the preparation of superhydrophobic surface. The hydrophobicity of surface
prepared by controlling jet electrodeposition current density, scanning speed and scanning layers
was analyzed. The results show that the superhydrophobic surface with the contact angle higher
than 150° can be prepared by current density of 875 A/dm2, scanning speed of 12 mm/min and
two times scanning. Finally, the surface microstructure closes to the situation of natural lotus leaf.
Keywords: Jet Electrodeposition; Superhydrophobic; Copper; Current Density.
Acknowledgement
The research described in this publication was made possible by financial support of Project
(51475235,51675272) supported by National Natural Science Foundation of China, Project
supported by Jiangsu Key Laboratory of Precision and Micro-manufacturing Technology of China,
Project (JSKLEDC201309) supported by Jiangsu Key Laboratory of Large Engineering Equipment
Detection and Control of China.
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Proceedings of the 5thInternationalConference on Manufacturing Process Technology 2019
Yanbian University in China,August 21 ~ 24, 2019
Performance of Ion Plating TiAlN Coating on YG8
HuiXia Zhang#
School of Mechanical Engineering, Huaihai Institute of Technology, No.59 Cangwu Road Haizhou
District , Lianyungang, Jiangsu, 222005, China
# Corresponding Author / E-mail: [email protected], TEL: +86-518-85895326, FAX: +86-518-85895326
Abstract
Multi-arc ion plating technology and interactive deposition process are adopted to plate TiAlN hard
film on the surface of YG8 cemented carbide cutting tools. Study the influences of the coating film
parameters to surface appearance with orthogonal experiment method. Observe substrate
samples, TiN transition layer and TiAlN coating film under the scanning electron microscope
(SEM). Cutting test, friction and wearing test showed that the coated cutting tools are with more
wearing resistance. The main wear mechanisms are adhesion, some accompanied by flake layer
of disbonding. Coated cutting tools significantly reduces friction coefficient. By experimental design,
the best process parameters are deposition temperature 100 ℃, substrate negative bias voltage
250 V, nitrogen partial pressure 0.6 Pa.
Keywords: Friction and Wear Behavior;Technological Properties;TiAlN
Acknowledgement
This work was a project funded by the Natural Foundation of Huaihai Institute of
Technology(Z2014002), China.And many thanks for Basic Science Research Program through the
National Research Foundation of Korea (NRF)
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Proceedings of the 5thInternationalConference on Manufacturing Process Technology 2019 Yanbian University in China,August 21 ~ 24, 2019
Study on Three-dimensional Printing of Porous 316L Stainless Steel by
3DP Method with Water-based Binder
Jianming Yang1#, Yang Tang1, Dazhi Huang1 and Yunfei Ding1
1School of Mechanical and Ocean Engineering, Jiangsu Ocean University, No.59 Cangwu Road
Haizhou District , Lianyungang, Jiangsu, 222005, China
# Corresponding Author / E-mail: [email protected], TEL: +86-518-85895330, FAX: +86-518-85895323
Abstract
The green bodies were fabricated by 3DP method of 3D printing technology, in which two sticky
powders of Polyvinyl Alcohol (PVA) and starch were mixed with 316L stainless steel powder, and a
water-based solution was jetted to the mixed powder. After being debonded and sintered in the
vacuum, the printed parts of porous stainless steel were obtained. The effects of PVA content in
the mixed powder and sintering temperature on dimensional shrinkage, porosity, mechanical
properties, tensile fracture morphology and carbon content of the printed parts were studied in this
paper. The results show that with increasing of PVA content, the shrinkage, porosity and carbon
content of the printed parts increase, while mechanical properties don’t simply increase or
decrease. On the other hand, with increasing of sintering temperature, the shrinkage and
mechanical properties increase, porosity and carbon content decrease, and it appears on the
morphology of tensile fracture that the metallurgical bonding of powder particles get more
compact. At last the properties of the printed parts are compared with that of bulk stainless steel of
022Cr17Ni12Mo2 (316L) and the corresponding value required for medical implant materials.
Keywords: Three-dimensional Printing; 3DP Method; Porous Metal; Water-based Binder;
Mechanical Property.
Acknowledgement
The research described in this publication was made possible by financial support of the open
Foundation of Jiangsu Key Laboratory of 3D Printing Equipment and Application Technology,
Nantong Institute of Technology (No.2017KFKT01), Natural Science Foundation of Lianyungang
(No. CG1515).
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Proceedings of the 5thInternationalConference on Manufacturing Process Technology 2019 Yanbian University in China,August 21 ~ 24, 2019
Based on Interest Region Detection of Roadway Environment
Perception System by Autonomous Mobile Robot
Mingqin Liu1,#, Xiaoguang Zhang2
1 School of Mechanical Engineering, Huaihai Institute of Technology, No.59 Cangwu Road
Haizhou District , Lianyungang, Jiangsu, 222005, China
2 School of Mechanical and Electrical Engineering, China University of Mining and Technology,
No.1 Daxue Road, Xuzhou, Jiangsu, 221116, China
# Corresponding Author / E-mail: [email protected], TEL: +86-18961310975
Abstract
In this paper, an improved Harris corner point detector is proposed on the basis of the
comprehensive evaluation of existing interest point detectors. The method calculates Harris
interest points in multi-scale space and selects only the corner points with local maxima on each
scale. Through the characterization and affine transformation estimation of the pixels around the
corner point, the detected interest points have the characteristics of scale, rotation, translation and
affine invariant. In view of good stability features during the moving of mobile robot, proposed a
method based on natural scene recognition of significantly local image regions, the robot analysis
the image which it obtained, and looking for the most matching image in the library, that is object
recognition, it can effective keep repeating detection and the scene regions recognition under the
condition of distance scale change、motion rotation and angle change. The method is applied to
binocular vision autonomous mobile robot to detect the roadway environment. It can effectively
avoid obstacles and walls, and can identify the categories of obstacles.
Keywords: Autonomous Mobile Robot; Environment Perception; Interest Region Detection;
Binocular Vision
Acknowledgement
The research described in this publication was made possible by financial support of Ministry of
Education Production and Teaching Integration Project (No.201702061028), Jiangsu Province
Industry-University-Research Cooperation Project (No. BY2018223).
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Proceedings of the 5thInternationalConference on Manufacturing Process Technology 2019 Yanbian University in China,August 21 ~ 24, 2019
Caterpillar Robot Mechanical Structure Design
Long Lu1,#, Xiaoguang Zhang2
1 School of Mechanical Engineering, Huaihai Institute of Technology, No.59 Cangwu Road
Haizhou District , Lianyungang, Jiangsu, 222005, China
2 School of Mechanical and Electrical Engineering, China University of Mining and Technology,
No.1 Daxue Road, Xuzhou, Jiangsu, 221116, China
# Corresponding Author / E-mail: [email protected], TEL: +86-18961310975
Abstract
In this paper, First studied the structure of caterpillar robot both here and abroad, summarized the
advantages and disadvantages of robot structures, and then a new structure is proposed. The
Caterpillar robot design principle use the bionic principle to realize more of the robot joints, more
freedom, which mainly includes the son of joint movement way design and the son of the joint
length optimization design, parts stress intensity , finally realize the robot's multiple class type, flex ,
modular, movement flexibility .The mechanical structural design of the robot of caterpillar type
mainly use theoretical analysis and calculation basic size of the son parts, through three-
dimensional CAD software Pro/E it was parameterized modeling entity, realizing the whole parts
assembled. The parts of the robot of stress check mainly use the material mechanics calculation
and ANSYS software. Through physical experiments show that the design of the robot can
successfully achieve the desired functionality, the mechanical structure meets the design
requirements.
Keywords: Caterpillar Robot; Mechanical Structure; Multiple Freedom; Optimal Design; Multiple
joints
Acknowledgement
The research described in this publication was made possible by financial support of Ministry of
Education Production and Teaching Integration Project (No.201702061028), Jiangsu Province
Industry-University-Research Cooperation Project (No. BY2018223).
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Proceedings of the 5thInternationalConference on Manufacturing Process Technology 2019
Yanbian University in China,August 21 ~ 24, 2019
Supplier Selection in Supplier Chain Management using Choquet
Integral-based Linguistic Operators under Fuzzy Heterogeneous
Environment
Xiqin Wen1#
1School of Mechanical Engineering, Huaihai Institute of Technology, No.59 Cangwu Road Haizhou
District , Lianyungang, Jiangsu, 222005, China
# Corresponding Author / E-mail:[email protected], TEL: +86-518-85895321, FAX: +86-518-85895321
Abstract
The fifierce competition and the globalization of the market economy urge manufacturing
organizations to adopt advanced manufacturing paradigms for sustaining in the global markets.
Supply chain management is an essential ingredient of advanced manufacturing systems and
fifinding those partners with the best fifit to the existing supply chain is a vital issue concerned in
the process of managing supply chains. Due to the decision maker’s knowledge fifield and the
nature of evaluated attributes, assessments are always with different formats, which were fifirst
unifified into the linguistic terms in the standard linguistic set. Two additive fuzzy measures were
used to model criteria interactions by pairs and to derive the special expressions of Marichal
entropy and Choquet integral, which is more convenient to use in practice. Fuzzy measures were
identifified based on the maximum of Marichal entropy.
Keywords: Supply chain management (SCM) ;Supplier selection; Fuzzy Two-additive fuzzy
measure;Two-tuple linguistic representation; Choquet integral-based linguistic operators
Acknowledgement
This work was partially funded by the Six Talent Peaks Project in Jiangsu Province
(No. 2011-ZBZZ-046).
-73-
Proceedings of the 5thInternationalConference on Manufacturing Process Technology 2019
Yanbian University in China,August 21 ~ 24, 2019
Tracking Control for Wheeled Mobile Robots Using Neural Network
Model Algorithm Control
Yuan Liang Zhang1#
1 School of Mechanical Engineering, Huaihai Institute of Technology, No.59 Cangwu Road
Haizhou District , Lianyungang, Jiangsu, 222005, China
# Corresponding Author / E-mail: [email protected], TEL: +86-518-85895321, FAX: +86-518-85895321
Abstract
This paper proposed a neural network model algorithm control (NNMAC) method for the path
tracking control of differentially steered wheeled mobile robots (WMRs) subject to nonholonomic
constraints. The model algorithm control (MAC) is a one-step-ahead predictive controller, in which
the control law is obtained by minimizing the output error. The MAC method needs the well known
model of the controlled system to design the controller. But sometimes it is difficult to get the
accurate model of the controlled system or the model of the controlled system is not good because
of the inside and outside disturbances and unknown parameters. Neural network has the ability to
estimate the nonlinear system’s model and its corresponding inverse model. In this paper the
NNMAC method which combines two neural networks and MAC method is proposed to do the path
tracking control of a wheeled mobile robot. Some simulations are conducted to show the
performance and feasibility of the proposed control strategy. In these simulations the WMR is
controlled to track two difference reference paths such as the circular shape path and the “8”
shape path.
Keywords: Neural Network, Model Algorithm Control, Mobile Robot
-74-
Proceedings of the 5thInternationalConference on Manufacturing Process Technology 2019 Yanbian University in China,August 21 ~ 24, 2019
Based on Fractal and Wavelet Technology Defect Edge Detection of
Weld X Ray Image
Anhua Peng1,#, Xiaoguang Zhang2
1 School of Mechanical Engineering, Huaihai Institute of Technology, No.59 Cangwu Road
Haizhou District , Lianyungang, Jiangsu, 222005, China
2 School of Mechanical and Electrical Engineering, China University of Mining and Technology,
No.1 Daxue Road, Xuzhou, Jiangsu, 221116, China
# Corresponding Author / E-mail: [email protected], TEL: +86-18961310975
Abstract
Fractal dimension can be used to measure, analyze and evaluate the texture and shape .Based on
the theory of fractal dimension and fractal characteristics, combined with the wavelet transform
modulus maximum to extract weld edge and weld defects in radiation image. Satisfactory
experimental results have been obtained. The specific detection steps are given in this paper.
Experimental results show that the detection of weld containing incomplete welding defects were
obtained satisfactory results; Then using this method to detect weld defects (including other cracks,
porosity and inclusion defects), experimental verification, the defect edge continuity and uniformity
are good, can be used for the next segment.
Keywords: Edge Detection; Weld Defects; Fractal; Wavelet Transform Modulus Maximum
Acknowledgement
The research described in this publication was made possible by financial support of Ministry of
Education Production and Teaching Integration Project (No.201702061028), Jiangsu Province
Industry-University-Research Cooperation Project (No. BY2018223).
-75-
Proceedings of the 5thInternationalConference on Manufacturing Process Technology 2019
Yanbian University in China,August 21 ~ 24, 2019
Microstructure and Properties of Ni/Al2O3 Composites Prepared by
Powder Injection Molding
Feng Shang1,2#, Zhenwei Cao3, Peng Zhang1, Bin Qiao1 and Huaqiang Li1
1 School of Mechanical Engineering, Huaihai Institute of Technology, No.59 Cangwu Road
Haizhou District , Lianyungang, Jiangsu, 222005, China
2 Marine Resources Development Institute of Jiangsu, No.108 Tongguan South Road Haizhou
District, Lianyungang, Jiangsu, 222001, China
3 School of Mechanical and Electrical Engineering, China University of Mining and Technology,
No.1 Daxue Road, Xuzhou, Jiangsu, 221116, China
# Corresponding Author / E-mail: [email protected], TEL: +86-518-85895323, FAX: +86-518-85895323
Abstract
Ni/Al2O3 composite was prepared by powder injection molding, the effects of Ni content and different
sintering process on the microstructure and mechanical properties of Ni/ Al2O3 composites were
studied .The results show that when the Ni content is 10%, the comprehensive performance of Ni/
Al2O3 composite is better. The optimum vacuum sintering process of 10%Ni/ Al2O3 composite is as
follows: sintering temperature of 1500 ℃ for 1 hour, with the relative density of 96.7%, bending
strength of 312 MPa, Vickers hardness of 1528HV and fracture toughness of 5.3 MPa•m1/2.
Keywords: Sintering Process; Powder Injection Molding; Ni/Al2O3 Composite; Microstructure;
Property.
Acknowledgement
The research described in this publication was made possible by financial support of the open
Foundation of Jiangsu Key Laboratory of Large Engineering Equipment Detection and
Control(No.JSKLEDC201506) , Natural Science Foundation of Lianyungang (No. CG1514).
-76-
Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Research Progress in the Bi-direction Non-contact Mechanical Seal
Technology
TU Qiaoan1,ZHOU Fei2
1College of Mechanical and Electronical Engineering,Nanjing Forestry University,Nanjing,
Jiangsu 210037,China
2 Academy of Frontier Science Nanjing University of Aeronautics and Astronautics, Nanjing,
Jiangsu 210016,China
# Corresponding Author / E-mail: [email protected],
Abstract
In some high parameter condition,the traditional contact mechanical seal worn badly,life is short, can
not take long period run of the equipment requirements.Carry out non-contact mechanical seal
especially bi-directional rotary non-contact mechanical seal research in favor of solving the
problem.This paper summarizes of several typical bi-directional rotary non-contact seal reviews
domestic and overseas.Using comparative analysis method ,comparing related groove profile
characteristics of each groove,this paper gives that different operating conditions of the bi-directional
rotary non-contact seal choosing principle : High pressure and high temperature, large size
occasions appropriate chooses circular groove;Low speed occasions appropriate chooses tree
groove;Grinding particles of tiny occasions appropriate chooses multi-pore face; High temperature
occasion all can choose T-shape groove.Points out that consummating theory model and
strengthening the backflow effect, improving the open stability and enhancing T groove steady-state
operation temperature range are the development direction of bi-directional rotary non-contact seal
technology .
Keywords: Mechanical Seal;T-shape Groove;Circular Groove;Multi-pore Face;Sealing
Property
-77-
Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Design of Roll Forming parts to support PV modules in Building
Roof
Sun-Ho Kim1,# and Sung-Uk Zhang1
1 Dong-Eui University, Busan, 37340, South Korea
# Corresponding Author / E-mail: [email protected], TEL: +82-51-890-2259, FAX: +82-51-890-2255
Abstract
Several types of structural steel are used to support the weight of the building exterior material facade
from the roof. We are interested in buildings that use PV modules as exterior materials. Aluminum
extrusion products have been used as support for PV modules. Aluminum products are light and
have good environmental resistance against corrosion. However, this has some disadvantages. The
first is that the price of the material is very expensive, and the second is that aluminum extruded
products have a limited length of products to be produced. However, the size of buildings such as
factories and warehouses is on the rise. The length may reach 40m. In that case, aluminum extruded
products having a limited length may be structurally unstable, requiring bonding as a bolt. In order
to solve this problem, we tried to apply roll forming method using iron sheet. For this purpose, we
tried to find the optimal shape and thickness of sheet based on the previous product. By comparing
and analyzing several alternatives through CAE analysis, we derived parts with the same rigidity as
existing products.
Designed part CAE analysis
Keywords: Roll Forming Parts, PV Modules, Building Roof, CAE Analysis
-78-
Proceedings of the 5th International Conference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
Simulation Analysis and Experimental Research on T Grooved End Face
Seal Under mid-and-low Speed
Huixia Zhang1,2, Long Lu1 and Sungki Lyu3,#
1 College of Mechanical Engineering, Huaihai Institute of Technology, Lianyungang, Jiangsu,
China 222-005
2 State Key Laboratory of Mechanics and control of Mechanical Structures ,Nanjing university of
Aeronautics and Astronautics Nanjing, 210016
3 School of Mechanical & Aerospace Eng., ReCAPT(K-MEM R&D Cluster), Gyeongsang Nati.
Univ. Jinju, Korea 660-701
# Corresponding Author / E-mail: [email protected], TEL: +82- 55-772-1632, FAX: +82- 55-772-1578
Abstract
Whether the dry gas seal in the low speed and large diameter of axle equipment can establish a stable gas
film is essential to the stability of equipment operation. This is an inevitable requirement to maintain non-
contact operation of dry gas seal in service. Choosing T Grooved dry gas seal which can realize bi-direction
rotating and on the basis of optimized trough by Fluent software for simulation analysis. Obtain the influence
rule of geometric parameters and operating parameters on the properties of T shaped groove dry gas seal
under the low speed(<6000 r/min). At the same time, the law is verified through the experiment. The results
show that the operating parameters, such as speed and pressure have obvious effects on the properties of
sealing. Geometric parameters, like the groove depth and groove number have obvious effects on the sealing
performance. Finally, the general principles in choosing working parameters and geometric parameters of T
Grooved dry gas seal under low-speed were obtained: Groove number should be between 12~16, groove
depth should be between 4~6μm, sealing clearance between 2~4μm. The research is instructive to provide
theoretical support for engineering design and industrial application of T Grooved dry gas seal under mid-and
low speed.
Keywords: Non-contact Mechanical Seal;Liquid Film;Gas Film;Dry Gas Seal ;Upstream
Pumping
Acknowledgement
This work was a project funded by the Natural Science Foundation in Jiangsu Province Colleges and
Universities of China (15KJB460002); and the Innovation Foundation of Huaihai Institute of
Technology of China (Z2014010 & Z2014002); and the Scientific Research Foundation of Huaihai
Institute of Technology of China(KQ16006).
-79-
Proceedings of the 5thInternationalConference on Manufacturing Process Technology 2019 Yanbian University in China, August 21 ~ 24, 2019
-80 -
Structural Design of a New Type of Straw Returning Plowing and
Rotary Tilting Duplex Working Machine
Shufa Chen1, Fawang Xie1, Xianqing Meng2
1 School of Mechanical and Ocean Engineering, JIANGSU OCEAN UNIVERSITY, No.59 Cangwu
Road Haizhou District, Lianyungang, Jiangsu, 222005, China
2 Ganyu Agricultural Mechanization Technology Extension Service Station, No.67 Huazhong
South Road, GanyuQu, Lianyungang, Jiangsu, 222100, China
# Corresponding Author / E-mail: [email protected], TEL: +86-518-85895322, FAX: +86-518-85895322
Abstract
In order to solve the problem that the current operation efficiency of rice straw and straw returning
farmwork equipment is not satisfactory, the shallow depth of straw burying and the ability of
preserving water and storing water are poor, it is required that we combine the straw plow turning
and tilling technologies with the requirements of conservation tillage, Play plow turn plowing and
other advantages of a variety of farming methods of deep plowing and tillage machine, a one-time
completion of plowing, rotary tillage, deep pine and many other operations. This article focuses on
the structure of the machine and its working principle, to determine the structure of the key
components of the machine form and the main parameters. The test results show that the machine
has stable performance at work, good effect of straw mulching and crushing, high operation
efficiency and versatility, and can meet the requirements of multi-operation of rice straw and wheat
straw returning to the field under various conditions.
Keywords: Plowing; Rotary Tilting; Deep Pine; Structural Design
Acknowledgement
The research described in this publication was made possible by financial support of the open
Jiangsu Province Science and Technology Enterprise Technology Innovation Fund Project (No.
BC2015167) , Jiangsu Provincial Policy Guidance Program-Subei Science and Technology
Special Project(No. BN2016051),Lianyungang Joint Research Project of Industry, Education
and Research (No. CXY1501).
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