| 钛合金锥形件温热剪旋热力耦合有限元模拟 |
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| 引用本文： | 陈宇,康达昌,金晓鸥.钛合金锥形件温热剪旋热力耦合有限元模拟[J].材料科学与工艺,2006,14(1):18-21. |
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| 作者姓名： | 陈宇 康达昌 金晓鸥 |
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| 作者单位： | 黑龙江大学,建筑工程学院,黑龙江,哈尔滨,150086 |
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| 摘 要： | 成形过程中的温度场变化对钛合金锥形件温热剪旋成功与否,以及产品的精度影响很大.在数值模拟时叠加符合实际的热源边界条件显得非常重要.针对TC4钛合金锥形件建立了三维热力耦合有限元模型,在有限元模拟过程中叠加了火焰加热边界条件.计算了成形过程中工件和芯轴上温度场的分布情况.所建立的有限元模型更加符合实际工况,模拟结果更加真实可靠.
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| 关 键 词： | 温热剪旋 数值模拟 热力耦合有限元 锥形件 |
| 文章编号： | 1005-0299(2006)01-0018-04 |
| 收稿时间： | 2004-12-10 |
| 修稿时间： | 2004年12月10 |
FEM coupled thermal simulation of warm shear spinning of cone workpiece of titanium alloy |
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| CHEN Yu,KANG Da-chang,JIN Xiao-ou.FEM coupled thermal simulation of warm shear spinning of cone workpiece of titanium alloy[J].Materials Science and Technology,2006,14(1):18-21. |
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| Authors: | CHEN Yu KANG Da-chang JIN Xiao-ou |
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| Affiliation: | 1. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China; 2. School of Architectural Engineering, Heilongjiang University, Harbin 150086,China |
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| Abstract: | Changing of temperature distribution during warm shear spinning of cone workpiece of titanium alloy greatly affects the process and the product's precision.So it appears to be very important to build a simulation model with proper temperature boundary condition of heating source in numerical simulation.A 3D rigid-plastic FEM simulation coupled thermal model for TC4 titanium alloy by warm shear spinning is founded and the temperature boundary condition of heating by flame is applied.The variation of temperature distribution on workpiece and tools caused by heat exchange between them and heat source is presented.The model is more suitable for actual process,and the calculated results are more accurate. |
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| Keywords: | warm shear spinning numerical simulation finite element method coupled thermal cone workpiece |
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