Patent ID: 7250585

Claim:
A system for welding a projection weld nut to a work piece, comprising: a work piece fixture for supporting said work piece during welding; a first contacting electrode for transferring electric current to said work piece and said projection weld nut from a first side of said work piece; a second contacting electrode for transferring electric current to said work piece and said projection weld nut from a second side of said work piece; and a resistance welding robot having a pair of gun arms each possessing a weld electrode, said gun arms adapted to press each weld electrode against a corresponding one of said first and second contacting electrodes, thereby applying pressure to said projection weld nut and said work piece; wherein said welding robot weld electrodes thereafter transfer electric current to said projection weld nut and said work piece via said first and second contacting electrodes, thereby effecting welding of said projection weld nut to said work piece.