Multispot electrical resistance welding machine

Details Multispot electrical resistance welding machine Multispot electrical resistance welding machine

1983-12-05

1985-01-29

Shaw, Clifford C.

Electric heating

Metal heating

For bonding with pressure

219108, B23K 928

Patent

active

044968205

ABSTRACT:
In a multispot resistance welding machine, the electrodes (8,9) of which are fed with D.C. pulses from a rectifier unit (2) via two busbars (5,7) running across the welding machine, the busbars (5,7) are arranged on opposite sides of the plane of weld and the two poles (1,3) of the rectifier unit (2) are connected each to one of the opposite ends of the two busbars (5,7). The busbars (1,3) from the rectifier unit (2) are arranged parallel with the busbars (5,7) feeding the electrodes and the busbars (5,7) are at equal distances away from the centerline of the busbars (1,3) and are connected directly or via short leads to the electrides (8 and 9 resp.). Alternatively the two poles of a second rectifier unit arranged antisymmetrically with respect to the first rectifier unit on the opposite side of the plane of weld, are connected in parallel to the opposite ends of the two busbars.

REFERENCES:
patent: 3139504 (1964-06-01), Ramstein et al.
patent: 3735089 (1973-05-01), Sciaky

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