Electric heating – Metal heating – By arc
Patent
1988-12-21
1990-02-20
Albritton, C. L.
Electric heating
Metal heating
By arc
428600, 428659, B23K 2600
Patent
active
049028723
ABSTRACT:
A shaped member of welded pieces of sheet metal of different thickness, more particularly having a metallic anti-corrosion protection, for example of zinc, on at least one side, wherein the pieces of sheet metal are joined to one another by a laser-beam-butt-welding process and shaped as a unit.
REFERENCES:
patent: 4377735 (1983-03-01), Minamida et al.
patent: 4642446 (1987-02-01), Pennington
Frings Adam
Prange Wilfried
Albritton C. L.
Thyssen Stahl AG
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