Experimental and Parametric Study of Friction Stir Welding in Similar and Dissimilar Metals

Friction Stir Welding (FSW) is a solid-state metals joining method used to weld similar or dissimilar materials. Compared to the conventional fusion welding methods, this FSW can produce joints with excellent mechanical, metallurgical and corrosion resistance properties with minimum heat-affected zone (HAZ). In this welding technique, a tool is rotated between the parts to be welded. Sufficient heat is generated by the friction created by the rotation of the tool to achieve the plastic state of the parts to be welded. A linear feed motion is imparted to either the workpiece or the tool to achieve a continuous weld. The quality of the weld depends on several process parameters, such as the profile of the tool, the rotational speed of the tool, the feed rate, etc. In present study, both homogeneous (aluminium alloy to aluminium alloy) and heterogeneous (aluminium alloy to MS) welding to be performed through Friction Stir Welding (FSW). Several welding parameters such as – Tensile strength. Toughness, Hardness, welding Temperature to be noted to understand the properties of weld at different variations of welding parameters.