RESISTANCE WELDING METHOD OF METALLIC COMPOSITE MATERIAL HAVING RESIN FILM

摘要

PURPOSE:To weld exactly and easily metallic composite materials by interposing a metallic piece between said materials and one electrode facing said materials and short-circuiting the metallic piece and the electrode to break down the resin films of the composite materials. CONSTITUTION:A metallic composite material 10 having an insulating resin film 11 between metallic plates 12, 13 and another metallic material 20 are superposed. A conductive metallic piece 3 is interposed between the material 10 and an electrode 2. A shunt circuit 4 is formed between the piece 3 and the material 20 to conduct shunt current. The above-described films 11 are broken down and thereafter the composite materials are welded by electric resistance. The materials are exactly and easily welded in the required position by the above-mentioned method.