Laser welding method

Details Laser welding method Laser welding method

1987-04-14

1988-05-17

Paschall, M. H.

Electric heating

Metal heating

By arc

219121LC, 219121LM, B23K 2600

Patent

active

047452579

ABSTRACT:
A laser welding method and apparatus for welding stacked coated members in which voids in the welds are positively eliminated. A spacer is disposed between the two members to be welded. This provides a path for discharging gas formed by heating the coating material. The method and apparatus of the invention are useful for the laser welding of base members coated with metals having a lower melting point than the metal of the base, paints and oils. Preferably, the width of the gap is in a range of 0.1 mm to 0.5 mm.

REFERENCES:
patent: 3881084 (1975-04-01), Baardsen
patent: 3969604 (1976-07-01), Baardsen
patent: 4386728 (1983-07-01), Torok et al.

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