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Effect of FSW Process Parameters on Mechanical Properties of Polypropylene: An Experimental Study

Raman Sharma, Om Pal Singh

Friction Stir Welding (FSW) is considered to be the most significant development in metal joining during last decade. This joining technique is energy efficient, environment friendly for versatile alloys. In the present work an effort has been made to join the polymeric material (Polypropylene) by FSW technique and the effects of critical process parameters on mechanical properties i.e. tensile and impact strength of friction stir welded polypropylene have been studied. Three process parameters i.e., tool rotational speed; welding speed and tool diameter were taken as process variables. Taguchi L27 Orthogonal Array method was selected for conducting the experiments. Experiments were performed at rotational speeds of 600, 750 and 900 r/min, welding speeds of 60, 70, and 80 mm/min, and tool diameters of 8, 10 and 12 mm. A strength value of 80% of the base material was achieved at the isolated optimum welding condition.For generating graphs and analysing themsoftware Mini Tab 14 was used.