Electrode for resistance welding

Details Electrode for resistance welding Electrode for resistance welding

1992-06-26

1994-04-19

Evans, Geoffrey S.

Electric heating

Metal heating

For bonding with pressure

B23K 1130, B23K 3504

Patent

active

053047699

ABSTRACT:
For resistance-welding workpieces of metal, an electrode is pressed against superposed regions of the workpieces and an electric current is supplied to the superposed regions to heat the same due to an electric resistance of the workpieces. The electrode has a body having a tip end for pressed engagement with one of the workpieces, and a matrix of tapered teeth disposed on the tip end of the body except for a center of the tip end. The teeth define recesses therebetween. One of the recesses is positioned at the center of the tip end, and the teeth are progressively higher from an outer circumferential edge of the tip end toward the center thereof.

REFERENCES:
patent: 1303919 (1919-05-01), Lachman
patent: 2379187 (1945-06-01), Richards
patent: 3574075 (1971-04-01), Eccles
patent: 4591687 (1986-05-01), Urech
patent: 4972046 (1990-11-01), Puddle et al.

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