COLLAR FOR RESISTANCE WELDING, ELECTRODE FOR RESISTANCE WELDING, AND RESISTANCE WELDING METHOD

• Main Authors: KAMAKURA MITSUTOSHI, SAJI SADAMOTO
• Format: Patent
• Language: English
• Published: 02.10.2008
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

PROBLEM TO BE SOLVED: To provide a resistance welding electrode that prevents discharge, that has better roundness as well as long life effectively, and that can improve product quality. SOLUTION: With a recess provided in the upper inside, a collar for resistance welding which entirely fits in the recess and which has an annular shape and a slit is put in the recess and integrated. A first workpiece is clamped with the collar, with the tip split piece of a resistance welding collet electrode pushed inside, so as to bring the collar into uniform contact with the workpiece. The counter workpiece clamped by a second resistance welding electrode is brought into contact with the first workpiece, with an electric current made to flow through the resistance welding electrode, the collar, the workpieces and the resistance welding electrode. The collar and the workpieces come into uniform contact with each other. The electric current flows radially and uniformly. COPYRIGHT: (C)2009,JPO&INPIT