Temperature distribution and mechanical properties of FSW medium thickness aluminum alloy 2219

Friction stir welding (FSW) is a solid-state jointing technology, and has the advantages of high joint strength, low residual stress, small deformation after welding. During FSW, temperature directly influences quality weldment. A heat generation model FSW medium thickness aluminum alloy 2219 established considering friction generated at interface between tool workpiece plastic weldment material near tool. The transfer set conduction, convection, radiation. Using JMatPro temperature-related parameters are obtained. built imported into simulation software ABAQUS through DFLUX subroutine, process achieved. effectiveness verified by experiments. prediction accuracy. Based on simulation, influence distribution explored; subsequently mechanical properties welded also studied. research guides improvement performance 2219.