Prediction of Heat Generation During Friction Stir Welding of an Aluminium Alloy

摘要

The heat generation during friction stir welding process influences the material flow, microstructure, and mechanical properties of the friction stir welded plates. This paper proposes a model for predicting heat generation and heat flux during the friction stir welding of AA 6061 aluminium alloy. The heat generation as a function of temperature, heat flux at the shoulder as a function of temperature, radius of shoulder and rotational speed and heat flux at the pin as function of temperature, radius of shoulder and rotational speed have been discussed. It shows that heat generation is inversely proportional to temperature, the heat flux at the shoulder and pin are directly proportional to radius of shoulder and rotational speed and inversely proportional to temperature.