| 摘要 |
PROBLEM TO BE SOLVED: To provide a welding method which can obtain high welding strength while suppressing the lowering of welding strength resulting from a void by suppressing the generation of the void.SOLUTION: First laser light 1 having intensity capable of generating a keyhole is radiated to a wide-width face of a first member 10 along a first joining face 12, and a first molten pool 14 which is formed by being radiated with the first laser light and melted is formed. Here, the first molten pool is formed over a second member, second laser light 2 having intensity lower than that capable of generating the keyhole is radiated to a side face part of the second member along a second joined face 22, and a second molten pond 24 which is formed by being melted by the second laser light is formed. Here, the second molten pool is formed over the first member. Then, the first molten pool and the second molten pool are integrated to each other, and form a molten pool, and the first member and the second member are welded to each other by a welding part which is formed by the solidification of the molten pool. |
