Analytical Study of influencing Parameters in FSW and their Impact on Weld Strength

Krishan Mohan Baghel; Pankaj Agarwal; Narayan Singh Vishwakarma

Volume : V, Issue : IV, April - 2016

Analytical Study of influencing Parameters in FSW and their Impact on Weld Strength

Krishan Mohan Baghel, Pankaj Agarwal, Narayan Singh Vishwakarma

Abstract :

Friction Stir Welding is the process used for joining softer material using a non–consumable tool. The flow of material in Friction Stir Welding is governed by the base metal or alloy properties such as yield strength, ductility and hardness. The present work deals with identification of optimal range of welding parameters in Friction Stir Welding for Aluminium Alloy (Al–6061), considering maximum temperature generated in the weld material as the main constraint. The parameters considered for study are tool rotational speed, welding speed, axial force and tool pin diameter. After finding the optimal range of all these parameters, the effects of these on yield strength of the weld are studied separately and an attempt has been made to find an empirical relationship between yield strength of the weld and all the considered parameters, considering appropriate weightage of each parameter in contributing to the weld strength.