| 摘要 |
PROBLEM TO BE SOLVED: To increase an aspect ratio, to improve welding strength, at the same time to improve productivity. SOLUTION: The welding method is constructed so that a laser beam for welding is moved on prescribed members 1, 2 to be welded, in which a place S to be welded is linearly set, along the place S to be welded. As a laser beam for welding used, a first laser beam 11 for welding and a second laser beam 12 for welding formed by Q switch are used, further, the place S to be welded is simultaneously irradiated with the first laser beam 11 for welding and the second laser beam 12 for welding. |
