| 摘要 |
PURPOSE:To provide the laser welding machine for improving remarkably its operation reliability, in the laser welding machine for melting a joined part of a work by a laser beam and welding it. CONSTITUTION:This laser welding machine is provided with a head part 60 provided with a working lens 50 for converging a laser beam 75, and a nozzle part 20 for blowing assist gas 40 to the laser beam 75 condensed to a welding point alpha by the working lens 50, further, this machine is provided with an elastic body nozzle 10 formed by coupling the head part 60 and the nozzle part 20 by a bellows type expansion joint 1. |
