Laser welding process

A method is disclosed for welding a first part and second part together. A spacer bead is first formed on the first part by directing a laser beam on one side of the first part. The second part is then assembled to the one side of the first part. The second part is then welded to the first part by directing a second laser beam in a partially circular pattern adjacent the spacer bead. An end portion of the weld terminates radially inside the partially circular pattern. 本发明公开了种激光焊接工艺。公开了种用于将第部件和第二部件焊接在起的方法。首先通过在第部件的侧上引导激光束而在第部件上形成分隔焊道。随后将第二部件装配到第部件的侧。之后通过在分隔焊道附近按照局部圆形图案引导第二激光束而将第二部件焊接到第部件。焊缝的端部终止于局部圆形图案的径向内部。