Laser welding apparatus

Details Laser welding apparatus Laser welding apparatus

1986-03-27

1988-02-02

Albritton, C. L.

Electric heating

Metal heating

By arc

219121FS, B23K 2600

Patent

active

047230630

ABSTRACT:
The laser welding apparatus has a nozzle (10) for generating a transversely extending gas current (14) between the optical system (4, 5, 6) and the beam focus for the deflection of particles moving in a direction towards the optical system (4, 5, 6). In order to reduce the level of noise development and to improve the protective action of the gas current curtain (14), the receiving aperture (12) of a gas exhaust line (13) is disposed opposite the nozzle (10), and furthermore the nozzle (10) is provided within an injector envelope (11), which forms together with the gas exhaust line (13) a substantially continuous flow channel.

REFERENCES:
patent: 4027137 (1977-05-01), Liedtke
patent: 4324972 (1982-04-01), Furrer et al.

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