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中文摘要：
搅拌摩擦焊是轻金属连接的创新工艺。针对铝合金板AA2024-T3对接焊，建立双热源数值计算模型，综合考虑搅拌轴肩转动摩擦生热和搅拌头塑变剪切生热。通过ANSYS开发实现瞬态移动热交换有限元仿真，获得全程三维温度场分布。仿真结果与英国剑桥大学标准实验数据吻合良好，表明仿真模型可行，仿真结果合理，有助于进一步实现搅拌摩擦焊热-应力交互耦合仿真。
英文摘要：
Friction Stir Welding （FSW） is an innovative joining method for light-weight materials. For butt joint of AA2024-T3, a numerical analysis model was proposed to describe 31） transient heat transfer process in FSW. Two heat sources, tool shoulder friction heat and tool pin plastic deformation heat, were considered. By using ANSYS-APDL re-exploitation, moving heat sources simulation was realized, obtaining 3D temperature field. The calculated results are in good relation with experimental data of Cambridge University Benchmark Study, indicating the model＇s feasibility and accuracy. This will be helpful for the further modeling of thermal-mechanical interactive coupled simulation for FSW.
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