搅拌摩擦焊接过程搅拌头几何对搅拌头受力的影响
The Influence of Tool Geome-try on the Force Exerted on the Tool in Friction Stir Welding
DOI: 10.12677/APP.2019.94021, PDF,    科研立项经费支持
作者: 张 威, 刘其鹏*：大连交通大学，土木工程学院，辽宁 大连；潘 杨*, 韩 锐*, 高月华：大连交通大学，机车车辆工程学院，辽宁 大连
关键词: 搅拌摩擦焊；搅拌头几何；工艺参数；搅拌头受力； Friction Stir Welding； Tool Geometry； Welding Parameters； Tool Force
摘要: 基于DEFORM-3D软件建立AZ91镁合金板材搅拌摩擦焊全热力耦合有限元模型，对焊接过程中搅拌头受力进行仿真研究。将模拟结果与已知实验值进行对比，验证模型的合理性。在此基础上，详细分析了轴肩凹角和搅拌针锥角、以及工艺参数对搅拌摩擦焊过程中搅拌头受力的影响。结果表明：搅拌头的几何形状和工艺参数对搅拌摩擦焊过程中搅拌头受力有显著影响，轴肩凹角会使搅拌头受力减小，搅拌针锥角会使搅拌头受力增加；焊速提高搅拌头受力增加，转速增加搅拌头受力减小。
Abstract: Based on DEFORM-3D software, a fully coupled thermo-mechanical modeling of friction stir welding for AZ91 magnesium alloy plate is established, and tool forces in friction stir welding is simulated. The simulation results are compared with the experimental results to verify the rationality of the modeling. The influences of concave angle of shoulder and cone angle of pin, as well as welding parameters on the tool forces during friction stir welding were analyzed in detail. The results show that the geometrical shape and welding parameters have a significant influence on the tool forces during friction stir welding. Shoulder concave angle will reduce the forces and pin cone angle will increase the forces on the tool. The forces increase with the increase of welding speed, and decrease with the increase of rotating speed.
文章引用：张威, 潘杨, 韩锐, 刘其鹏, 高月华. 搅拌摩擦焊接过程搅拌头几何对搅拌头受力的影响[J]. 应用物理, 2019, 9(4): 169-176. https://doi.org/10.12677/APP.2019.94021

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