Abstract
AbstractThe goal of present research is to investigate the effect of thickness of aluminum, stainless steel and driver sheets on the ultimate tensile strength, weld width and hardness of aluminum‐stainless steel joint in the electromagnetic welding. First, the finite element analysis was applied to predict the joint formation between aluminum and stainless steel sheets by using the weldability window. Then, the experiments were conducted using the response surface methodology and desirability function to attain the desirable values of sheet thickness. Eventually, the microstructure of weld interface was observed by optical and scanning electron microscopy to evaluate the quality of welds. It was observed that the values of ultimate tensile strength, weld width and hardness can be simultaneously improved by selecting the thickness of aluminum, stainless steel and driver at 0.78 mm, 0.37 mm and 0.96 mm respectively. The microstructure analysis exhibited that the detrimental effects of intermetallic layers on the weld strength can be limited by reducing the thickness of intermetallic to 4 μm.
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