Rajesh V, Subramanian. C
Friction stir welding is a solid state joining and relatively a new welding process that has a significant advantages compared to the fusion welding process such as joining conventionally non fusion weld able alloy, being a solid state joining process it produces weld with reduced distortion and improved mechanical properties. The usage of aluminum alloy are widely used in different industrial application such as ship building, and automobile industries due to their light weight good mechanical strength and high corrosion resistance. The main aim of the project is to optimize the tool profile among the four tool profile in friction stir welding which increase the yield strength and hardness. In this project, the main parameters considered are heat input from the tool shoulder and tool pin. the temperature distribution analysis is carried out using the abacus software. the four work piece are welded with the four different tool pin profile at the speed and feed rate of 1200rpm and 1.25 mm/sec. after welding the work piece, hardness and tensile test are performed to check the strength of the work piece. scanning electron microscope is used to check whether any defects and porosity in the work piece after welding
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