| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a welding method of a member to be welded while the effect by the underfill is eliminated without reducing the welding speed. <P>SOLUTION: In the welding method, end faces of members 11, 12 to be welded are butted to each other, laser beams are irradiated along a welding line 14 with the end faces being overlapped, and a welding zygote 10 with the members 11, 12 welded thereto can be obtained. Welding end faces of projecting parts 13 formed on ends of the members 11, 12 are butted to each other; and laser beams are irradiated along a welding line 14 at the position higher than the surfaces of the members 11, 12 by the projecting parts 13. After welding the members 11, 12 to each other, the projecting parts are cut by the value over the depth of a recess 15 by the underfill formed in a welded part, and the surface of a welded part 16 is formed flat. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
