STICKING AND SLIDING HEAT GENERATION DURING FRICTION STIR WELDING OF AN ALUMINIUM ALLOY
Keywords:
Friction stir welding, microstructure, heat generation, shear deformationAbstract
The material flow, microstructure, and mechanical properties of the friction stir welded plates are influenced by the heat generation during the process. This paper proposes a model for predicting heat generation due to friction, deformation, shoulder and pin during the friction stir welding of AA 6061 aluminium alloy. This model also predicts the heat flux generated around the pin for different rotational speeds. The frictional, deformation, shoulder and pin heat generation as a function of temperature and volume heat flux around the pin as function of temperature and rotational speed have been discussed. The result shows that the heat generation due to pin, shoulder and heat flux are inversely proportional to temperature.
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