Abstract
Friction Spot Joining (FSJ) process has been used to join aluminum sheets in transportation equipments. The metal flow in FSJ plays important role for successful joining. In this paper, the smoothed particle hydrodynamics (SPH) is employed to simulate the metal flow produced by FSJ. To simplify the numerical model for metal flow simulation, only the local joining zone of worksheets was selected as an object in which temperature is assumed to be quite high and materials are in softened state. The three dimensional movement of metal particles was visualized by simulation. The metal flow produced by axial movement and rotational movement of the FSJ welding tool was discussed based on the simulated results.
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