| 摘要 |
PURPOSE:To supply stably a filler wire by providing the filler wire united to a working head near a nozzle for a laser beam and moving vertically the filler wire. CONSTITUTION:A filler wire supply part 9 consisting of a filler wire drum 4 and a wire feeder is provided integrally with the working head 2 which moves vertically. A laser welding device is made invariable in the relative positional relation between the working head 2 and the filler wire supply part 9 by the above-mentioned constitution even if the head 2 moves vertically. The stable supply of the filler wire 5 is thus made possible without providing the permanent bending set to said wire. |
