| 摘要 |
PROBLEM TO BE SOLVED: To decrease an amount of generation of spatter in the case of laser beam welding of steel plates. SOLUTION: The method comprises a process of forming through holes on a welding part to form through holes 11 on a steel plate W1 of one side alogn a welding line L connecting a weld part of the steel plate W1 of the one side, a steel plates setting process to fix both the steel plates W1, W2 on condition that the steel plate W1 of one side comes into contact with the other steel plate W2, and a welding process in which from a steel plate W1 of one side out of both the fixed steel plates W1, W2 a laser beam B is irradiated along the welding line L and both the steel plates W1, W2 are welded. |
