Patent ID: 8963043
Filing Date: 2015-02-24
Classification: B23K

Abstract:
1. A welding method comprising the steps of: providing a welding assembly comprising a current generator, a first electrode electrically coupled to said current generator, said first electrode including a first engagement surface, and a second electrode electrically coupled to said current generator, said second electrode including a second engagement surface and defining a recess in said second engagement surface; providing a first workpiece member, a second workpiece member and an auxiliary member; positioning said auxiliary member between said first workpiece member and said second workpiece member to form a workpiece assembly; positioning said workpiece assembly between said first electrode and said second electrode; passing a welding current through said workpiece assembly to form a weld joint in said first workpiece member and said second workpiece member, said weld joint having a weld joint width; and during said passing step, focusing said welding current into said weld joint width while cooling, with at least one of said first electrode and said second electrode, said first workpiece member and said second workpiece member outside of said weld joint width, wherein, after said passing step, a portion of said workpiece assembly extends into said recess.