DC resistance welding apparatus

Details DC resistance welding apparatus DC resistance welding apparatus

1989-11-16

1992-06-09

Shaw, Clifford C.

Electric heating

Metal heating

For bonding with pressure

B23K 1124

Patent

active

051209292

ABSTRACT:
A DC resistance welding apparatus includes a pair of welding electrodes for sandwiching workpieces to be welded therebetween and a circuit connected to the welding electrodes for supplying a welding current to said welding electrodes. The circuit comprises includes a plurality of parallel-connected rectifying circuits each comprising having a welding transformer and rectifying circuit. The circuit allows a large welding current to be supplied to workpieces, and makes the DC resistance welding apparatus small in size and light in weight.

REFERENCES:
patent: 3571552 (1971-03-01), Opal
patent: 3840720 (1974-10-01), Wolf
patent: 4503316 (1985-03-01), Murase et al.
patent: 4564742 (1986-01-01), Karlsson
patent: 4910375 (1990-03-01), Izume

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