7/31/2019 Connecting Rod - Flow and Solidification Analysis with Z-Cast
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(No Defect)
Laili Novita / 1106029225
M.Ekaditya Albar / 1106154305
Rhidiyan Waroko / 0806331935
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Outline
Background
Design
Z-Cast Analysis
Conclusion
M.E
KADITYAALBAR
7-Jun-12
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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.avi7/31/2019 Connecting Rod - Flow and Solidification Analysis with Z-Cast
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Design
M.E
KADITYAALBAR
7-Jun-12
Isometric Top
Back Left
7/31/2019 Connecting Rod - Flow and Solidification Analysis with Z-Cast
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Design
M.E
KADITYAALBAR
7-Jun-12
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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
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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
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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
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Design + Gating System
M.E
KA
DITYAALBAR
7-Jun-12
Isometric
Top
Back
Left
Diameter Riser = 15mm
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Z-Cast Analysis
Video Flow Analysis
M.E
KA
DITYAALBAR
7-Jun-12
http://video/Filling-No%20Defect.avihttp://video/Filling-No%20Defect.avi7/31/2019 Connecting Rod - Flow and Solidification Analysis with Z-Cast
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Z-Cast Analysis
Video Solidification Analysis
M.E
KA
DITYAALBAR
7-Jun-12
http://video/Solidification-No%20Defect.avihttp://video/Solidification-No%20Defect.avi7/31/2019 Connecting Rod - Flow and Solidification Analysis with Z-Cast
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Z-Cast Analysis
Video Shrinkage Analysis
M.E
KA
DITYAALBAR
7-Jun-12
http://video/Shrinkage-No%20Defect.avihttp://video/Shrinkage-No%20Defect.avi7/31/2019 Connecting Rod - Flow and Solidification Analysis with Z-Cast
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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
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7-Jun-12
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