Heat generation model for taper cylindrical pin profile in FSW

Modeling offers great potential for reducing experimental effort in development of welding parameters, tool design and many other areas and at the same time reduce cost and time. An analytical model for heat generation for friction stir welding using taper cylindrical pin profile was developed. The proposed analytical expression is the modification of previous analytical models known from the literature which is verified and well matches with the model developed by previous researchers. The results of the proposed model were validated with the data from previous researchers. From the obtained results, it was observed that less temperature is generated using taper cylindrical pin profile than straight cylindrical pin profile under given set of working conditions. Furthermore, numerical simulation result shows that increasing the taper pin angle leads to decrease in peak temperature.