Investigation of Mechanical Properties on Non-Ferrous alloys of Copper and Brass Joints made by Friction Stir Welding

Abstract

Abstract Friction Stir Welding (FSW) and Friction Welding (FW) are the most popular emerging solid welding techniques in aircraft and shipbuilding industries. FSW is mainly used for the joining of metal plates and FW is mainly used for the joining of rods. Both techniques are suitable for high strength material having less weight. These techniques are environmentally friendly and easy to execute. Hence, study on these techniques can contribute much to the field of green technology. There is wide variety of tool pin profiles such as cylindrical, cone and frustum and these are available without and with threaded portion. Considering the work piece materials, the feasibility of this process depends mainly on the properties. Present work deals with welding the copper to copper and brass to brass specimens using cylindrical friction stir weld tool. The weld zones of the specimens were further tested to study tensile strength, hardness and impact strength. A comparative analysis was done to know the impact of friction stir welding on brass and copper material. Based on the comparative analysis prediction can be done for the feasibility of this process to the investigated materials.