| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To a method for joining different metals, in which an oxide film is removed without applying much calorie even when the oxide film is deposited on a surface of either material when overlapping and joining two different metals, and as a result, generation of intermetallic compounds on a joint interface is suppressed to be small, thereby improving the joint strength. <P>SOLUTION: When overlapping and joining a galvanized steel sheet 1 and an aluminum alloy 2 of the kind different from the galvanized steel sheet 1 with each other, eutectic melting is made to cause on an interface between the aluminum alloy 2 and a zinc layer 6 of the galvanized steel sheet 1 by irradiating the galvanized steel sheet 1 side with YAG laser beams 3 in a spot form, and the galvanized steel sheet 1 is joined with the aluminum alloy 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
