Author : Jitender Kundu, Gyanender Ghangas, Navrattan Kaushik and Satish Sharma

Friction stir welding (FSW) is an advanced and upgraded version of friction welding. It has been systematically developed for joining non-weldable aluminium alloys. This joining process is a more robust process for aluminium. In the joining of Aluminium base alloys with friction stir welding, different parameters― tool rotational speed, tool tilt angle ― influence the quality of the weld. In the present article these effects have been identified through one factor at a time approach. Tool rotational speed has been the major influencing parameter for generating frictional heat. Tool rotational speed with frictional heat makes the material to reach at re-crystallization temperature at which two plates were welded. Other parameters also have significant impact on the friction stir welded joint quality. Microstructure also changes at different level of parameters.

Keywords: FSW, welding, aluminium alloy, tool rotational speed, tool tilt angle.

Article published in International Journal of Current Engineering and Technology, Vol.7, No.3 (June-2017)