Modelling and optimizing the effects of process parameters on galvanized steel sheet resistance spot welds

2011 ◽  
Vol 226 (4) ◽  
pp. 664-674 ◽  
Author(s):  
L Boriwal ◽  
M M Mahapatra ◽  
P Biswas
Keyword(s):  
Sheet Resistance ◽  
Process Parameters ◽  
Steel Sheet ◽  
Galvanized Steel ◽  
Spot Welds ◽  
Resistance Spot ◽  
Resistance Spot Welds

Resistance Spot Welding Process of Galvanized Steel Sheet Based on Regression Modeling

2009 ◽  
Vol 610-613 ◽  
pp. 681-686
Author(s):  
Yi Luo ◽  
Hong Ye ◽  
Cheng Zhi Xiong ◽  
Lin Liu ◽  
Xu Wei Lv
Keyword(s):  
Resistance Spot Welding ◽  
Spot Welding ◽  
Steel Sheet ◽  
Welding Process ◽  
Welding Current ◽  
The Body ◽  
Galvanized Steel ◽  
Spot Welds ◽  
Current Electrode ◽  
Resistance Spot

The resistance spot welding process of galvanized steel sheet used in the body manufacturing of family car was studied, and the indexes of nugget geometry and tensile-shear strength of spot welds were tested. Four process parameters, namely welding current, electrode force, welding current duration and preheat current, and interactions among them were regarded as factors impacting indexes. Method using in mathematical models developing was nonlinear multiple orthogonal regression assembling design, which was optimized by the technology of variance analysis. The experimental results showed that more accurate prediction on nugget size and mechanical properties of spot welds can be obtained by the models optimized. With these prediction results, the optimization of welding process also was realized by the analysis to effect of the parameters and interactions on the welding quality.

Effect of process parameters on the strength of resistance spot welds in 6082-T6 aluminium alloy

2010 ◽  
Vol 31 (5) ◽  
pp. 2454-2463 ◽  
Author(s):  
A.M. Pereira ◽  
J.M. Ferreira ◽  
A. Loureiro ◽  
J.D.M. Costa ◽  
P.J. Bártolo
Keyword(s):  
Aluminium Alloy ◽  
Process Parameters ◽  
Spot Welds ◽  
Resistance Spot ◽  
Resistance Spot Welds
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