Method and device for gas shielding laser processed work pieces

Details Method and device for gas shielding laser processed work pieces Method and device for gas shielding laser processed work pieces

1997-05-08

1999-11-09

Mills, Gregory

Electric heating

Metal heating

By arc

21912164, 21912184, B23K 2614

Patent

active

059819014

ABSTRACT:
On an apparatus (10) for laser processing workpieces (18), and whereby a laser beam (11) is directed on to a portion (13) of a substantially perpendicular work surface (14), a jet (21) of shielding gas is fed over the work surface portion (13) crosswise in relation to the laser beam (11) and at such high speed as to substantially prevent any alteration of the physical and/or chemical properties of the gas. The jet (21) is supplied along a solid-walled conduit (26) comprising two transverse openings (29, 31) for the passage of the beam (11) on to the work surface portion (13); and a nozzle (32) for producing a gas jet (21) of appropriate speed.

REFERENCES:
patent: 4000392 (1976-12-01), Banas et al.
patent: 4078167 (1978-03-01), Banas et al.
patent: 4128753 (1978-12-01), Sharp
patent: 4642445 (1987-02-01), Stol
patent: 4723063 (1988-02-01), Armier et al.
patent: 4801352 (1989-01-01), Piwczyk
patent: 4990741 (1991-02-01), Moores et al.
patent: 5359176 (1994-10-01), Balliet, Jr. et al.

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