Optimisation of Process Parameters Friction Stir Welding

Abstract

Friction stir welding (FSW) is a relatively new solid-state joining process. This joining technique is energy efficient, environment friendly, and versatile. In particular, it can be used to join high-strength aerospace aluminum alloys and other metallic alloys that are hard to weld by conventional fusion welding. The FSW parameters such as tool rotational speed, welding speed, welding tool shoulder diameter, and welded plate thickness play a major role in determining the strength of the joints. Aluminium alloys have gathered wide acceptance in the fabrication of light weight structures requiring a high strength and good corrosion resistance.