Composite electrical contact

Details Composite electrical contact Composite electrical contact

H - Electricity

01

H

26/122, 306/349

H01H 1/06 (2006.01) B23K 33/00 (2006.01) H01H 11/04 (2006.01) H01R 4/62 (2006.01) H01R 13/02 (2006.01)

Patent

CA 1148998

ABSTRACT OF THE DISCLOSURE Two or more cut wires of precious and non-precious metals are cold welded at least at one of their ends for producing a composite electrical contact or contact material, the contact surface of which is made of the precious metal or alloys thereof. At least one end of one of said cut wires is provided with at least one projection which is smaller in diameter than the wires. This projection is expanded and flows under welding pressure over the abutting surfaces of the ends of the cut wires to form bonded surfaces of wires having good bonding forces without undesired or unexpected expansion of the wire pieces in their diameters.

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