铣削过程中残余应力仿真分析

董兆伟; 张以都; 刘胜永

铣削过程中残余应力仿真分析

1.
北京航空航天大学机械工程及自动化学院, 北京 100083
2. 河北师范大学职业技术学院机械系, 石家庄 050031

基金项目: 国防基础科研资助项目;河北省教育厅科研资助项目(2002240)

详细信息

作者简介:
董兆伟(1967-),男,河北石家庄人,博士生, dongzw@mail.hebtu.edu.cn.

中图分类号: TH 161⁺.14
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- 文章访问数: 3068
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- 被引次数: 0
出版历程
- 收稿日期: 2004-10-30
- 网络出版日期: 2005-07-31

Residual stress simulation and analysis of milling process

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

摘要

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.
- 铣削 /
- 有限元 /
- 残余应力 /
- 变形
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.
- milling /
- finite element method /
- residual stress /
- deformation

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参考文献(1)

[1] Smith S. Tool path strategies for high speed milling aluminum work piece with thin webs[J] Mechatronics,1998(8):291～300[2] 孔庆华, 曹金海.刨削加工残余应力的研究[J] 航空制造技术，2000(4)：23～25Kong Qinghua, Cao Jinhai. Research on the residual stress of planeing[J] Journal of Aviation Manufacturing Technology， 2000(4)：23～25 (in Chinese)[3] 方刚, 曾攀.金属正交切削工艺的有限元模拟[J] 机械科学与技术，2003，22(4)：641～645Fang Gang, Zeng Pan. FEM analysis of orthogonal cutting technique of metal[J] . Journal of Machine Science and Technique， 2003，22(4)：641～645(in Chinese)[4] 王新荣. 切削加工中残余应力产生原因的研究[J] 佳木斯大学学报，1997，15(4)：372～378Wang Xinrong. Study on the residual stress of cutting[J] Journal of Jiamusi Institute of Industry, 1997,15(4)：372～378(in Chinese)[5] 郭乙木，陶伟明，庄茁.线性与非线性有限元及其应用[M] 北京：机械工业出版社,2004 Guo Yimu, Tao Weiming, Zhuang Zhou. Liner and noliner FEM & applications [M] . Beijing:China Machine Press, 2004(in Chinese)[6] 王勖成，邵敏.有限单元法基本原理和数值方法[M] 北京：清华大学出版社，1997Wang Xucheng, Shao Min. FEM fundamental& calculating method[M] Beijing:Tsinghua University Press,1997(in Chinese)[7] 王立涛. 关于航空框架类结构件铣削加工残余应力和变形机理的研究[D] .杭州：浙江大学机械与能源工程学院，2003Wang Litao. Study on residual stresses and distortion theory of aeronautica frame structure in the milling[D] Hangzhou:College of Mechanical and Energy Engineering, Zhe Jiang University, 2003(in Chinese)

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