Protective gas for the laser welding of aluminum

Details Protective gas for the laser welding of aluminum Protective gas for the laser welding of aluminum

1994-08-10

1996-01-30

Walberg, Teresa J.

Electric heating

Metal heating

By arc

21912184, B23K 2614

Patent

active

054882168

ABSTRACT:
In the laser welding of aluminum, argon, helium and mixtures thereof are used as protective gases. To improve the welding behavior, 80 vpm to 250 vpm, preferably 120 vpm to 180 vpm of nitrogen, nitrous oxide or nitrogen
itrous oxide mixture are added to the protective gas.

REFERENCES:
patent: 4000392 (1976-12-01), Banas et al.
patent: 4806731 (1989-02-01), Bragard et al.
patent: 4833295 (1989-05-01), Locker et al.
patent: 4868365 (1989-09-01), Farone et al.
patent: 4992643 (1991-02-01), Fuerschbach et al.
patent: 5380976 (1995-01-01), Couch, Jr. et al.

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