Electric heating – Metal heating – For bonding with pressure
Patent
1975-01-20
1976-03-02
Grimley, Arthur T.
Electric heating
Metal heating
For bonding with pressure
B23K 1104
Patent
active
039419720
ABSTRACT:
A flash welding machine which comprises two pairs of current-carrying welding electrodes, one pair movable and the other, stationary. A double cut guillotine shear is normally positioned forwardly and alongside the welder at a "stand-by" position, remote from the welding position to avoid splattering from welding sparks. When it is desired to shear and weld, carriage means move the shear longitudinally alongside the machine and then laterally into a gap formed by moving the movable pair of welding electrodes from the stationary pair. Depending upon the selected gauge bar of a ladder-like gauge bar construction mounted on each side of the shear when in the "stand-by" position, such selected gauge bars are clamped between the lower current-carrying dies and the lower blades of the shear so as to provide back-up support for such blades as well as to tightly clamp the selected gauge bars for accurate gauging of the projection of strip desired beyond the welding dies after shearing. The welding dies, after clamping of the strips therebetween preparatory for welding, remain clamped until after the welding operation to avoid introduction of positioning errors, thereby assuring that the ends of the strip are cut squarely, parallel and in exact registry to provide an excellent weld.
REFERENCES:
patent: 2328784 (1943-09-01), Coates et al.
patent: 3249732 (1966-05-01), Cooper et al.
patent: 3426952 (1969-02-01), Chew et al.
patent: 3808393 (1974-04-01), Goodwin et al.
Grimley Arthur T.
Ruano William J.
The Taylor-Winfield Corporation
Tone D. A.
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