The Distribution of Temperature and Material Flow of Friction Stir Welding

The distribution of three dimension temperature field of the friction stir welding process has been studied by finite element method. It is shown that the simulation results are in accordance with the experimental results. The variety of the quantity of heat inputted into workpiece with temperature and place has been considered in the model, and the results can reflect the true temperature field in the vicinity of pin-tool. At last, the material flow in friction stir welding process has been depicted.