| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a laser welding method capable of controlling the warpage of a metal plate when the metal plate and a metallic foil body is joined by laser welding. <P>SOLUTION: The laser welding method for connecting the metal plate to the metallic foil body includes: a process for forming two or more radial grooves from the center of the metal plate at positions where these lines does not overlap each other on the front surface and the rear surface of the metal plate, a process for bringing the front surface of the metal plate into contact with an end of the metallic foil body to melt the front surface of the metal plate by a laser beam, and a process for joining the metal plate and the metallic foil body. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
