BIMETALL-WIDERSTANDSSCHWEISSELEKTRODE UND VERFAHREN ZU DEREN HERSTELLUNG

摘要

A bimetal resistive welding electrode having a dispersion strengthened copper tip portion and a shank portion formed of a high conductivity copper is produced by brazing together a conductive copper billet and a dispersion strengthened copper billet to form an extrusion blank. The brazing temperature is such that the dispersion strengthened copper is not annealed. The extrusion blank is then extruded into the shape of a welding electrode with the extruding process hardening the conductive copper shank portion to produce a full hard electrode.