Abstract
Friction stir welding is a solid state joining method used to join materials which cannot be joined by fusion welding. In this joining method, heat produced due to the friction between tool and workpiece is used to weld workpiece material. Heat input depends upon amount of friction caused by process parameters such as rotational speed, weld speed, tool geometry, axial force etc. In the present study, effect of friction stir welding process parameters such as shoulder to pin diameter ratio, rotational speed and weld speed on peak temperature obtained during friction stir welding of aluminum alloy were investigated using taguchi L9 orthogonal array. ANOVA result shows that shoulder to pin diameter ratio (D/d) is the most significant factor affecting on peak temperature obtained during the FSW.
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