Mechanism for resistance seam welding

B - Operations – Transporting – 23 – K

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B23K 11/06 (2006.01) B23K 11/30 (2006.01)

Patent

CA 1134456

Abstract of the Disclosure An electrode for electrical resistance seam welding apparatus is described. The electrode is arranged to roll against a workpiece to be welded and is composed of a pressure member maintained out of contact with the workpiece, connected to a weld- ing current supply, and made of a material which is a good elec- trical and thermal conductor, and a contact member in the form of an endless element mounted to roll against the workpiece and to be pressed against the workpiece by the pressure member. The con- tact member is composed of a rigid ring of a heat-resistant material selected to not form an alloy with the workpiece material, and the ring is mounted to surround the pressure member and to permit relative movement between the ring and the pressure member.

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