| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a laser welding method for steel sheets which can improve welding quality by autogenous welding between steel sheets, and further can improve the joining strength of a weld zone. <P>SOLUTION: When a plurality of steel sheets are mutually subjected to laser welding, a laser beam in a low heat input is superimposed to a weld zone so as to have a zigzag-shaped welding pattern at a fixed pitch, and welding is performed at a fixed speed. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
