Modelling of Portable Resistance Spot Welding

Abstract

Abstract Portable spot-welding process is used to join sheet materials and uses shaped copper alloy electrode to
apply pressure and convey the electrical current through the work pieces. In all forms of resistance welding, the
parts are locally heated. The material between the electrodes yields and is squeezed together. It then melts,
destroying the interface between the parts. The current is switched off and the “nugget” of molten materials
solidifies forming the joint. The material has a higher electrical resistivity and lower thermal conductivity than the
electrode used is suitable to choose such as steel because it making welding relatively easy.
Keywords: Portable spot welding, welding process