| 铣削过程中残余应力仿真分析 |
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| 引用本文： | 董兆伟,张以都,刘胜永.铣削过程中残余应力仿真分析[J].北京航空航天大学学报,2005,31(7):762-765. |
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| 作者姓名： | 董兆伟 张以都 刘胜永 |
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| 作者单位： | 北京航空航天大学,机械工程及自动化学院,北京,100083;河北师范大学,职业技术学院机械系,石家庄,050031 |
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| 基金项目： | 国防科技应用基础研究基金，河北省教育厅科研项目 |
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| 摘 要： | 在铣削加工零件时,零件各部分的残余应力分布不均匀,会使工件发生变形,影响工件的形状和尺寸精度.采用有限元分析方法,利用有限元增量理论建立了加工材料的弹塑性本构关系.针对立铣刀的铣削加工,建立了二维金属铣削仿真模型,分析中采用网格自适应准则,通过对典型钢件的加工模拟,得到了加工后已加工表面的残余应力的分布情况和整个加工过程中工件的受力情况,对于工程中的实际应用具有重要的意义.
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| 关 键 词： | 铣削 有限元 残余应力 变形 |
| 文章编号： | 1001-5965(2005)07-0762-04 |
| 收稿时间： | 2004-10-30 |
| 修稿时间： | 2004年10月30日 |
Residual stress simulation and analysis of milling process |
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| Dong Zhaowei,Zhang Yidu,Liu Shengyong.Residual stress simulation and analysis of milling process[J].Journal of Beijing University of Aeronautics and Astronautics,2005,31(7):762-765. |
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| Authors: | Dong Zhaowei Zhang Yidu Liu Shengyong |
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| Institution: | 1. School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100083, China;
2. Vocational and Technical College ,Hebei Normal University, Shijiazhuang 050031, China |
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| Abstract: | In the milling procedure, the distribution of stress inside material is uneven, which makes the work-piece deformed and affects shape and dimension precision. Adopting the analysis of finite element method(FEM) , the elastic-plastic constitutive equation was established with the theory of incremental method of FEM. Based on the end mills milling procedure, the reasonable two-dimension milling model was established, which uses the adaptive meshing criteria. A typical steel work-piece milling procedure was simulated, which gets the total status of residual stress distribution and the status of received force in the milling procedure, which is very significant in engineering. |
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| Keywords: | milling finite element method residual stress deformation |
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