Analysis of Preheating Effects on Friction Stir Welding of Aluminum Alloy


Vivek Deswal, M.E. Scholar, B.S. Pabla, Professor
Department of Mechanical Engineering, National Institute of Technical Teachers Training and Research (NITTTR), Chandigarh, India.


This paper explains the principle and methodology of friction stir welding process. It covers the design of experimental set up that is needed for effective working of the FSW. The working tool for the friction stir welding process is developed followed by the adequate geometry of the tool. The various effects of preheating the aluminum alloy are studied. Various changes in microstructural properties of the aluminum alloy are characterized by using Scanning electron microscope (SEM). The temperature of aluminum alloy is changed accordingly by maintaining a proper range i.e., within two temperatures. Thus, the properties of the aluminum alloy are studied and hence compared for the respective two temperatures. The various mechanical tests are performed and hence properties like hardness, toughness and strength are observed.