Stainless steel body of commuter train has been assembled using resistance spot welding. However, indent mark at each spot and deformation of the out side skin plate often lowers the appearance quality of the car body. To solve the these problems, a...
Stainless steel body of commuter train has been assembled using resistance spot welding. However, indent mark at each spot and deformation of the out side skin plate often lowers the appearance quality of the car body. To solve the these problems, authors carried out studies on applying laser welding to lap joints between skin plates and stiffeners. As the results of the study it was confirmed that the laser weld has sufficient strength, standing comparison with the resistance spot welding.