7/31/2019 Connecting Rod - Flow and Solidification Analysis with Z-Cast

1/14

(No Defect)

Laili Novita / 1106029225

M.Ekaditya Albar / 1106154305

Rhidiyan Waroko / 0806331935

7/31/2019 Connecting Rod - Flow and Solidification Analysis with Z-Cast

2/14

Outline

Background

Design

Z-Cast Analysis

Conclusion

M.E

KADITYAALBAR

7-Jun-12

7/31/2019 Connecting Rod - Flow and Solidification Analysis with Z-Cast

3/14

Background

Connecting rod adalah suatu tangkai yang mentransmitgerakan atau power dari satu komponen yang bergerak

ke komponen lain,

Pada kendaraan, connecting rod adalah suatu tangkai

yang menghubungkan crankshaft ke piston. Connecting rod dapat dibuat dari berbagi grade steel,

alumunium dan titanium.

M.E

KADITYAALBAR

7-Jun-12

http://../Engine%20crankshaft%20animation%20-%20YouTube.avihttp://../Engine%20crankshaft%20animation%20-%20YouTube.avihttp://../Engine%20crankshaft%20animation%20-%20YouTube.avi

7/31/2019 Connecting Rod - Flow and Solidification Analysis with Z-Cast

4/14

Design

M.E

KADITYAALBAR

7-Jun-12

Isometric Top

Back Left

7/31/2019 Connecting Rod - Flow and Solidification Analysis with Z-Cast

5/14

Design

M.E

KADITYAALBAR

7-Jun-12

7/31/2019 Connecting Rod - Flow and Solidification Analysis with Z-Cast

6/14

Perhitungan Pouring Time

M.E

KADITYAALBAR

7-Jun-12

Pouring time:

WbR

R : kecepatan pouring (Kg/s)b : koefisien untuk pengecoran light metal

W : berat riser dan produk cor (Kg)

Ketebalan

(mm)< 6 mm 6-12 mm >12 mm

Konstanta,b 0.99 0.87 0.47

Berat produk cor= 0.515 Kg

Berat riser= 0.040+0.032 = 0.072 KgW = 0.515 + 0.072 = 0.587 Kg

Tebal benda cor: 38 mm Koefisien : 0.47

R = 0.47.(0.587)0.5 = 0.36 Kg/s

Maka nilai t = 1.63 sekon

7/31/2019 Connecting Rod - Flow and Solidification Analysis with Z-Cast

7/14

Design Gating System

M.E

KA

DITYAALBAR

7-Jun-12

hmft

xWIA

...

6.22

IA : luas ingate

W : berat total produk dan gating system (Kg)

:massa jenis Al (2.7 gr/cm3)

t :pouring time (sekon)

f :kecepatan (0.3)

hm : metallostatic pressure heighthm : a-c/8

M (riser) : M (gating system) = 20% : 10% (dari massa produk)

Perbandingan IA : Runner : Sprue

1 : 4 : 4

7/31/2019 Connecting Rod - Flow and Solidification Analysis with Z-Cast

8/14

Data Material dan Proses

Massa produk : 515 gr

Massa gating system : 225 gr

Material : AlCuTiMg ~ A 2010

Pouring Time : 1.63 sekon

Cetakan : Pasir Silika

% Shrinkage : 6.6%

M.E

KA

DITYAALBAR

7-Jun-12

7/31/2019 Connecting Rod - Flow and Solidification Analysis with Z-Cast

9/14

Design + Gating System

M.E

KA

DITYAALBAR

7-Jun-12

Isometric

Top

Back

Left

Diameter Riser = 15mm

7/31/2019 Connecting Rod - Flow and Solidification Analysis with Z-Cast

10/14

Z-Cast Analysis

Video Flow Analysis

M.E

KA

DITYAALBAR

7-Jun-12

http://video/Filling-No%20Defect.avihttp://video/Filling-No%20Defect.avi

7/31/2019 Connecting Rod - Flow and Solidification Analysis with Z-Cast

11/14

Z-Cast Analysis

Video Solidification Analysis

M.E

KA

DITYAALBAR

7-Jun-12

http://video/Solidification-No%20Defect.avihttp://video/Solidification-No%20Defect.avi

7/31/2019 Connecting Rod - Flow and Solidification Analysis with Z-Cast

12/14

Z-Cast Analysis

Video Shrinkage Analysis

M.E

KA

DITYAALBAR

7-Jun-12

http://video/Shrinkage-No%20Defect.avihttp://video/Shrinkage-No%20Defect.avi

7/31/2019 Connecting Rod - Flow and Solidification Analysis with Z-Cast

13/14

Conclusion

Berdasarkan hasil running Z-Cast yang telah dilakukanterhadap produk, connecting rod tidak mengalami cacat

shrinkage.

Riser mengalami pembekuan terakhir.

Riser yang telah diperbesar ukurannya ini (dari diameter10mm menjadi 15mm) telah berfungsi dengan baik

karena dapat mengakomodasi adanya shrinkage.

M.E

KA

DITYAALBAR

7-Jun-12

7/31/2019 Connecting Rod - Flow and Solidification Analysis with Z-Cast

14/14

7-Jun-12