A Review On Dissimilar Fricton Stir Welding Of Copper To Aluminium : Process Properties And Variants.

Friction stir welding (FSW) has now become an important process in the joining of aluminium alloys and other materials which are soft relative to the material used as the tool for stirring the metal.In contrast to the traditional friction welding, which is usually performed on small axisymmetric parts that can be rotated and pushed against each other to form a joint. friction stir welding can be applied to various types of joints like butt joints, lap joints, T butt joints, and fillet joint. Friction stir welding (FSW) technology is feasible to join dissimilar materials because of its solid state nature. Present article provides a comprehensive insight on dissimilar copper to aluminum materials joined by FSW technology. FSW parameters such as tool design, tool pin offset, rotational speed, welding speed, tool tilt angle, and position of workpiece material in fixture for dissimilar Cu–Al system are summarized in the present review article. Additionally, welding defects, microstructure, and intermetallic compound generation for Cu–Al FSW system have been also discussed in this article. Furthermore, the new developments and future scope of dissimilar Cu–Al FSW system have been addressed