| 摘要: |
| 根据搅拌摩擦焊接特点,建立了轴肩、柱形搅拌针和锥形搅拌针热输入数值模型,并分别讨论了搅拌针锥角对轴肩和锥形搅拌针热输入的影响。结果表明,锥角增大,轴肩热输入降低;锥形搅拌针侧面热输入增大;搅拌针端面热输入降低;搅拌针总的热输入先下降,然后迅速上升。 |
| 关键词: 搅拌摩擦焊 热输入 数值模型 |
| DOI： |
| 分类号: |
| 基金项目:国家863基金资助项目(20002AA724040) |
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| Numerical model of heat input from rotational tool during friction stir welding |
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WANG Da-yong, FENG Ji-cai, WANG Pan-feng
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National Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China
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| Abstract: |
| This paper has established the numerical models of the heat generation from the shoulder,the cylinder shape and the cone shape pins(including pin sideface and endface) during friction stir welding.The effect of pin angle on the heat generation from the cone shape pin has been analyzed.The results confirm that the heat generation from the shoulder and the cone shape pin endface decreases,and the heat generation from the cone shape pin sideface increases when pin angle increases.However,the general heat generation from the cone shape pin decreases firstly,then increases rapidly,with pin angle increasing. |
| Key words: friction-stir welding heat input numerical model |
