Electric heating – Metal heating – For bonding with pressure
Patent
1981-02-27
1982-08-17
Goldberg, Elliot
Electric heating
Metal heating
For bonding with pressure
219 85R, 219119, B23K 1130
Patent
active
043451365
ABSTRACT:
A bi-metal resistance welding electrode has a dispersion strengthened copper tip and a high conductivity copper shank. The electrode is made by forming a tip member in two successive upsetting operations to produce a tip member having a coating of high conductivity copper covering substantially all of one end thereof. A solid, high conductivity copper, cylindrical billet is formed and brazed to the tip member at its coated end to form an extrusion blank. The extrusion blank is back extruded with the high conductivity copper material being worked substantially, while only partially back extruding the tip portion of the extrusion blank.
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Goldberg Elliot
The Nippert Company
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