Welding process and apparatus

Details Welding process and apparatus Welding process and apparatus

1992-10-09

1994-12-06

Albritton, C. L.

Electric heating

Metal heating

By arc

21912164, B23K 2600

Patent

active

053713370

ABSTRACT:
An apparatus comprises a fixture for positioning a first sheet metal part in proximity of a second sheet metal part so that each sheet metal part has one surface facing the other sheet metal part across a gap and one surface facing away from the other sheet metal part, wherein at least one of the sheet metal parts comprises galvanized steel. A laser beam delivery device applies a laser beam to one of the facing away surfaces. A feed wire source provides a feed wire comprising a supplemental wire and a reactive agent at an intersection of the laser beam and the one facing away surface. The apparatus affects relative movement between the one facing away surface and the laser beam to provide a laser weld between the two sheet metal parts.

REFERENCES:
patent: 3969604 (1976-07-01), Baardsen
patent: 4603089 (1986-07-01), Bampton
patent: 4634832 (1987-01-01), Martyr
patent: 4650954 (1987-03-01), Frings et al.
patent: 4684779 (1987-08-01), Berlinger et al.
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patent: 4827100 (1989-05-01), Frings et al.
patent: 4835357 (1989-05-01), Schalk
patent: 4866242 (1989-09-01), Martyr
patent: 4902872 (1990-02-01), Frings et al.
patent: 4905310 (1990-02-01), Ulrich
Welding, Brazing & Soldering, Metals Handbook Ninth Edition, vol. 6; p. 663.

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