| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a laser beam welding apparatus and a laser beam welding method capable of ensuring an adequate space necessary for the laser beam welding of a plated plate, and preventing any defective weld. <P>SOLUTION: The laser welding apparatus 1 for welding at least two plates 21, 22 facing each other with a space to each other by irradiating laser beams L on the plates from one side in the opposite direction includes a space regulating tool 40 for regulating a space S between the plates 21, 22 facing each other by inserting a space regulating unit 41 from an insertion hole part 31 in one plate 21 while the plates 21, 22 face each other so that the insertion hole parts 31, 32 formed in the plates 21, 22 to be welded are communicated with each other, and butting a part of the space regulating unit to the opposite surface of the other plate 22. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
