Which factors affect the distortion of car body steel sheets caused by Resistance Spot Welding process?

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Daniel Martinez Krahmer

There is a company named Simufact, which had won an international competition created by the five deustcher automotive companies. The objective was to develop a software for improve the welding secuence method to reduce the distortion of the part.

If you want you can see: http://www.simufact.de/en/solutions/sol_weld.html

Isa Dehghani

Thank you Mr Daniel.

Welding sequence is one of the major cause of distortion and this cause is optimized by many softwares but I want to study on all causes of distortion in RSW process. This company only use from a software to calibrate or optimize welding sequence and don't explain any cause of distortion in steel sheets.

I think that type of material sheet, thickness, heat quantity, tempertature, shape of part.

For me is necessary to make experimental testing conducted by DOE (Design of Experiments).

I should simulate these factors and study of results. A sensivity analysis should be performed before simulation.

Thanks a lot.

Bhuvenesh Rajamony

Resistance Spot Welding process the material characteristics, thickness, the welding spot dimensions and the value of current flow are the cause of distortion.