Electrode for resistance spot welding of aluminum sheet

Details Electrode for resistance spot welding of aluminum sheet Electrode for resistance spot welding of aluminum sheet

1997-09-15

1999-10-05

Mills, Gregory

Electric heating

Metal heating

For bonding with pressure

219 861, B23K 1130

Patent

active

059618540

ABSTRACT:
For welding conductive materials, using conventional copper electrode caps, with a long service life of the welding tool, a foil section is provided between the electrode cap and the surface of the sheet. The foil section is part of a foil strip which is displaceable relative to the electrode cap, and consists of a material with a high nickel content, while silver or a silver metal oxide is provided as a material in the contact area between the electrode cap and the foil section. The electrode cap is preferably coated with this material.

REFERENCES:
patent: 3363086 (1968-01-01), Ecklund et al.
patent: 4859825 (1989-08-01), Polvara et al.
patent: 5844194 (1998-12-01), Kuwabara et al.
"Wekstoffe fur Elektroden und andere stromfuhrende Teile an Widerstands-Schweisseinrichtungen" DIN 44 759 Nov. 1973.

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