EXPERIMENTAL INVESTIGATIONS ON FRICTION STIR WELDING OF AL2219
Keywords:
Friction, welding, Tool, Geometry, FSW, TWI , Heat treatmentAbstract
Friction stir Welding Process (FSW) is a solid state welding method developed by The Welding Institute (TWI), and now it is increasingly used in Aluminium and Steel Welding. FSW is now extended to variety of materials including steel and polymers. This paper highlights the optimum process parameters are obtained in this process. Tensile strength is decreased with increasing rotational speed. Tensile strength is decreased with increasing welding speed. Hardness is increased with increasing rotational speed. Experiments are conducted on CNC vertical milling machine. Micro structure examination has been done before and after welding. In addition Effect of heat treatment (annealing) process has been examined after welding.
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