| 钛合金筒形件真空热胀形壁厚效应的数值模拟 |
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| 引用本文： | 王明伟,张立文,张凡云,李辰辉.钛合金筒形件真空热胀形壁厚效应的数值模拟[J].稀有金属材料与工程,2007,36(10):1772-1775. |
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| 作者姓名： | 王明伟 张立文 张凡云 李辰辉 |
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| 作者单位： | 1. 大连理工大学三束材料改性国家重点实验室,辽宁,大连,116085;大连理工大学材料科学与工程学院,辽宁,大连,116085
2. 沈阳黎明航空发动机集团公司,辽宁,沈阳,110043 |
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| 摘 要： | 建立了钛合金筒形件真空热胀形的二维非线性热力耦合有限元模型。使用有限元软件MSC-Marc对钛合金简形件真空热胀形过程进行数值模拟。计算了钛合金筒形件真空热胀形过程的温度场和变形场，并进行了相应的实验验证。模拟结果与实验结果吻合较好。用建立的模型对真空热胀形过程中钛合金筒形件壁厚效应进行数值模拟，讨论了一定工艺条件下钛合金筒形件壁厚与弯曲角度、胀形量和残余应力之间的关系，为实际生产中制定和优化钛合金筒形件真空热胀形工艺参数提供理论与实践依据。
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| 关 键 词： | 钛合金简形件 真空热胀形 壁厚效应 数值模拟 |
| 文章编号： | 1002-185X（2007）10-1772-04 |
| 修稿时间： | 2006-09-17 |
Numerical Simulation of Wall Thickness Effects in Vacuum Hot Bulge Forming Process of Titanium Alloy Cylindrical Workpiece |
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| Wang Mingwei,Zhang Liwen,Zhang Fanyun,Li Chenhui.Numerical Simulation of Wall Thickness Effects in Vacuum Hot Bulge Forming Process of Titanium Alloy Cylindrical Workpiece[J].Rare Metal Materials and Engineering,2007,36(10):1772-1775. |
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| Authors: | Wang Mingwei Zhang Liwen Zhang Fanyun Li Chenhui |
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| Affiliation: | 1. State Key Laboratory for Materials Modification by Laser, Ion and Electron Beams, Dalian 116085, China;2. School of Materials Science and Engineering, Dalian University of Technology, Dalian 116085, China;3. Shenyang Liming Aero-Engine Group Corporation, Shenyang 110043, China |
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| Abstract: | A 2-D nonlinear thermo-mechanical coupled finite element model was developed. Numerical simulation of vacuum hot bulge forming process of titanium alloy cylindrical workpiece was carried out using the FE software MSC.Mrac. The temperature field and displacement field of vacuum hot bulge forming process of titanium alloy cylindrical workpiece were calculated using the model. The corresponding experiments were carried out. The simulated results are in good agreement with the experimental results, The wall thickness effects of the cylindrical workpiece were simulated numerically using the developed model. The relationships between bending angle of cylindrical workpiece and wall thickness, between maximum bulge height and wall thickness and between residual stress and wall thickness were discussed under certain technical conditions during the vacuum hot bulge forming process. The results will lay a theoretic foundation for optimizing technical parameters of vacuum hot bulge forming of titanium alloy in future manufacturing process. |
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| Keywords: | titanium alloy cylindrical workpiece vacuum hot bulge forming wall thickness effects numerical simulation |
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