Welding device

Details Welding device Welding device

1980-01-24

1981-12-01

Goldberg, Elliot A.

Electric heating

Metal heating

Nonatmospheric environment at hot spot

219 602, 219121R, 2191251, B23K 912

Patent

active

043038239

ABSTRACT:
A multiple electrode magnetic arc welder that has a plurality of electrodes arranged in a preselected pattern corresponding to the arrangement of the multiple welds to be made by these electrodes in sequence. Each of these electrodes is mounted for movement from a retracted inoperative position toward the respective work areas where the welding takes place and back to the retracted position. The electrodes are moved individually into close proximity welding position to its workpiece for welding the workpiece and then retracted to inoperative position with the means for retracting the electrodes comprising means for automatically de-energizing the retracted electrode. The disclosure also includes a supply of pressurized inert gas and a valve for bathing the electrode and the workpiece in this inert gas automatically during the welding operation when the above close proximity position is maintained.

REFERENCES:
patent: 935358 (1909-09-01), Davis
patent: 3051825 (1962-08-01), Rockafellow
patent: 3114830 (1963-12-01), Wotitzky

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