| 钛合金线性摩擦焊接头缺陷形成机理分析 |
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| 引用本文： | 陶军,孙成彬,张田仓.钛合金线性摩擦焊接头缺陷形成机理分析[J].航空制造技术,2009(10). |
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| 作者姓名： | 陶军 孙成彬 张田仓 |
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| 作者单位： | 北京航空制造工程研究所 |
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| 摘 要： | 采用热力耦合技术,建立了线性摩擦焊过程的有限元模型,计算了焊接温度、应力和变形场,并对温度场进行了试验验证.观测了接头不同缺陷的微观形态,并对其形成机理进行了分析.最后,提出了控制焊接缺陷的措施.
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| 关 键 词： | 线性摩擦焊 缺陷 数值模拟 温度场 |
Study on the Formation Mechanism of Welding Defects in Linear Friction Weld of Titanium Alloys |
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| Tao Jun,Sun Chengbin,Zhang Tiancang.Study on the Formation Mechanism of Welding Defects in Linear Friction Weld of Titanium Alloys[J].Aeronautical Manufacturing Technology,2009(10). |
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| Authors: | Tao Jun Sun Chengbin Zhang Tiancang |
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| Abstract: | With the thermal-mechanical coupling technique,a finite element model(FEM) of linear friction welding process is constructed.The temperature, stress and deformation fields of welding are computed.The temperature field results are measured for validating the simulation data.Microstructures of the joint defects are observed,and the formation mechanisms of different kinds of defects are analyzed.Finally, the controlling methods for preventing these defects are presented. |
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| Keywords: | Linear friction welding Defect Numerical simulation Temperature field |
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