A Review on Study and Analysis of Various Parameters Affecting Nugget Formation in Resistance Spot Welding Using FEM

Abstract

Resistance spot welding is the most popular joining process in an automobile body assembly production lines. Today's automobiles typically contains approximately five thousand or more spot weld. Current spot welding technology relies on volume on empirical data's to set the working parameters. Often this data is no sufficient to ensure that a nugget of sufficient size is formed thus quality and strength depends on the optimum welding diameter of welding nugget. There are various parameters affecting the nugget size in RSW. In this paper the effect of weld time and weld current is studied on CRCA material by experiments and also by using the FEA model.