Orbital arc welding

Presented by :Naik Abhilash B.Roll No.50 (TE production) SEMINAR ONORBITAL ARC WELDING Under the Guidance of : Prof. Dr. S.R.Gangurde (Associate professor) Dept. of production Engg

KK WAGH INSTITUTE OF ENGG. EDUCATION AND RESEARCH NASHIK-O3

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CONTENTS16 April 2015KKWIEER2INTRODUCTIONHISTORYORBITAL PIPE WELDINGPIPE MATERIALSEAM TRACKING IN OPWTYPES OF GROOVETYPES OF OPWADVANTAGE OVER MANUAL WELDINGAPPLICATIONFUTURE STUDY CONCLUSIONREFERANCE

HISTORY16 April 2015KKWIEER3ORBITAL WELDING WAS DEVELOPED AT THE BEGINNING OF YHE 1960s BY THE AEROSPACE AND NUCLEAR POWER INDUSTRIES THE FIRST USE OF MECHANIZED ORBITAL WELDING OF CROSS-COUNTRY PIPELINE IN 1961 AT U.S.

ORBITAL PIPE WELDING16 April 2015KKWIEER4DEFINECONSTRUCTIONWORKINGOPW PARAMETER AND EQUIPMENT

ORBITAL WELDING PARAMETER AND EQUIPMENT16 April 2015KKWIEER5PARAMETER 1.WELDING SPEED(1.7 to 4.2 mm/s) 2.WELDING CURRENT(for 18 gage steel 70 A,12.7mm steel 315 A) 3.ARC PULSING

POWER SOURCE

1.ANALOG POWER SOURCE 2.MICROPROCESSER BASED

FILLER WIRESHIELDING GAS1.co22.Argon

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PIPE MATERIAL 16 April 2015KKWIEER6PROPERTIES OF MATERIAL 1.corrosion resistance 2.Dirt and moisture 3. good weldability 4. High strengthPIPE MATERIAL 1.300 & 400 Series steel 2.High strength low alloy (HSLA) 3.Titanium alloy 4.X80 Steel

SEAM TRACKING IN OPW

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HUMAN MACHINE INTERFACE

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TYPES OF GROOVE

16 April 2015KKWIEER8V GROOVE

U GROOVE

TYPES OF OPW16 April 2015KKWIEER9CLOSED HEAD MECHANISM

OPEN HEAD MECHANISM

MOST USED WELDING PROCESSES IN ORBITAL PIPE WELDING 16 April 2015KKWIEER10GAS TUNGSTAN ARC WELDING (GTAW)GAS METAL ARC WELDING (GMAW)FLUX CORED ARC WELDING (FCAW)LASER AND HYBRID LASER ARC WELDING

WELD QUALITY AND TEST CONTROL16 April 2015KKWIEER11IN PIPE WELDING, THE FOLLOWING FACTORS SHOUD BE CONSIDERED 1. Tube materials,Dimensions,welding consumable 2.machine,equipment,appliances and tools 3.work preparation, welding parameter 4.Pipe welder and working condition 5 knowledge and experience

ADVANTAGE OF OPW16 April 2015KKWIEER12ONE OPERATOR CAN CONTROL ONE OR MORE MACHINE PORTABLE,ACCESSIBLE,FAST,PRECISEHIGHER WELDING SPEEDLOWER DISTORTIONLOWER HEAT AFFECTED ZONE(HAZ)HIGHER PRODUCTIVITYLOW SCRAP

APPLICATION16 April 2015KKWIEER13OIL AND GAS FOOD INDUSTRYPULP AND PAPER CHEMICAL INDUSTRYDAIRY AND BEVERAGE WATER FILTARATION PLANT

FUTURE STUDIES16 April 2015KKWIEER14

faster welding process as well as faster sensing system with cheaper mechanismAdvanced orbital pipe welding system consists of welding processes and sensing systems which together make the welding process adaptive.

CONCLUSION16 April 2015KKWIEER15Orbital system, speed of root pass welding is higher than manual welding and this is the key for cost reduction in pipeline application.Orbital pipe welding technique could yield in significant reductions in the processing time, skilled welder, and welding costs but improvements in the joint quality.

REFERANCE16 April 2015KKWIEER16[1] B. Mannion, "The fundamentals of orbital welding," Gases & Welding Distributor, vol. 44, no. 1, pp. 42-44, 2000[2] Hamidreza Latifi Advanced Orbital Pipe Welding The tube & pipe journal,vol.10,pp.24-34,2012U. Chandra, "Determination of residual stress due to girth-butt welds in pipe,"ASME Journal of Pressure Vessel Technology, vol. 107, pp. 178-184, 1985.

16 April 2015KKWIEER17 Thank you !