Abstract—Friction Stir Welding (FSW) is a process in which the welds are prepared with the help of a tool having a profiled pin. In this welding process the material does not reach to its melting point and the welds are made in the plastic stage condition by applying an axial force on the stirred work material keep halt with the help of the fixtures. Here, a short of comparison is made between conventional welding processes TIG and MIG to FSW on the basis of heat input and joint efficiency. For doing this AA6061 is used in the study. It was found that, for less heat input best weld joint with higher efficiency up to 80% can be obtained with the help of FSW process as comparison to TIG & MIG welding processes.

Index Terms—FSW, TIG, MIG, AA6061

Cite: Ashwani Kumar, Shakti Singh Gautam, and Alok Kumar, "Heat Input & Joint Efficiency of Three Welding Processes TIG, MIG And FSW Using Aa6061," International Journal of Mechanical Engineering and Robotics Research, Special Issue, Vol. 1, No. 1, pp. 89-94, January 2014.