Electric stud-welding device

Details Electric stud-welding device Electric stud-welding device

1990-07-27

1991-08-13

Shaw, Clifford C.

Electric heating

Metal heating

For bonding with pressure

219132, B23K 910, B23K 920

Patent

active

050398350

ABSTRACT:
This electric stud-welding device includes a welding gun for a stud or bolt to be welding to a workpiece, and a control device. The latter consists of a welding current source and a setting device for welding time and welding current. The welding gun and the control device are connected through two welding current lines. A pilot current circuit is present, using only the two welding current lines (5, 6). Also present is a setting device (10), coordinated with the welding gun (3), which is switched into the pilot current circuit. In the control device (2), there is a sensor (9) which, dependent on the control signals produced by the setting device (10) each time, after the actuation of the selective switches or setters (13, 14) arranged thereon, controls the control device (8), present in the control instrument, for the welding time and the welding current.

REFERENCES:
patent: 2175891 (1939-10-01), Graham
patent: 3932724 (1976-01-01), Raycher
patent: 4216367 (1980-08-01), Risberg
patent: 4266114 (1981-05-01), Hansen
patent: 4415792 (1983-11-01), Jordan

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