Male spot welding electrode

  • US 4,760,235 A
  • Filed: 09/24/1987
  • Issued: 07/26/1988
  • Est. Priority Date: 09/24/1987
  • Status: Expired due to Fees
First Claim
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1. A male spot welding electrode comprising:

  • a billet which is backward extruded to form a one piece electrode body of generally circular cross-section having an open end portion and a closed weld end portion containing a generally flat contact surface;

    the open end portion to be reduced by a process of rotary swaging to a tapered mounting portion containing an inlet bore communicating with an internal cavity thus established inside the one piece electrode body for coolant fluid flow, the inside diameter of the internal cavity being larger than the inside diameter of the inlet bore, the internal cavity containing a plurality of circumferentially spaced fins extending inwardly from the side walls of the internal cavity to form heat transfer surfaces.

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