Process and apparatus for welding sheet metal coated with layers

Details Process and apparatus for welding sheet metal coated with layers Process and apparatus for welding sheet metal coated with layers

1974-02-25

1977-02-22

Reynolds, Bruce A.

Electric heating

Metal heating

For bonding with pressure

B23K 1110

Patent

active

040093620

ABSTRACT:
Apparatus for the connection of sheet metal panels coated on at least one surface with an insulating layer by the electrical fusion of a metal, wherein the improvement comprises the steps of supplying an electric pre-warming current to only the upper most panel to melt the insulating layer between the coated panels.

REFERENCES:
patent: 1123309 (1915-01-01), Kicklighten
patent: 1294679 (1919-02-01), Lachman
patent: 2109461 (1938-03-01), Brown
patent: 3067488 (1962-12-01), Bennett et al.
patent: 3089020 (1963-05-01), Hurlebaus
patent: 3277268 (1966-10-01), Williams et al.
patent: 3337711 (1967-08-01), Garscia
patent: 3415973 (1968-12-01), Verbeck
patent: 3489446 (1970-01-01), Williams
patent: 3515841 (1970-06-01), King
patent: 3555964 (1971-01-01), Fleming

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