| 摘要 |
PROBLEM TO BE SOLVED: To suppress deformation of a welded object during regular welding and suppress peeling of a temporary weld portion after the regular welding.SOLUTION: The welding method for irradiating a welded object comprising a plurality of superposed metallic plates with a high energy beam for welding includes the processes of: forming a plurality of temporary weld nuggets 41a along a virtual closed curve on a weld portion 41 of the welded object; and forming a plurality of regular weld nuggets 41b so as to superpose the plurality of temporary weld nuggets 41a, respectively.SELECTED DRAWING: Figure 5 |
