| 切削中残余应力释放对工件加工变形的影响 |
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| 引用本文： | 刘胜永,万晓航,董兆伟.切削中残余应力释放对工件加工变形的影响[J].煤矿机械,2007,28(2):105-107. |
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| 作者姓名： | 刘胜永 万晓航 董兆伟 |
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| 作者单位： | 1. 河北师范大学,石家庄,050031
2. 河北工业职业技术学院,石家庄,050091 |
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| 基金项目： | 河北省科技厅科技计划
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河北省教育厅科研项目 |
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| 摘 要： | 为了研究加工过程中毛坯初始残余应力的释放对加工变形的影响,在弹塑性理论的基础上,建立了三维铣削仿真加工变形场的有限元分析模型,利用位移约束转换和“单元生死”技术仿真了加工过程中工件装夹和材料的去除。通过仿真数据与实验数据相比较,结果表明:工件毛坯残余应力在铣削加工过程中对称释放有利于减小工件加工后变形。
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| 关 键 词： | 残余应力 加工变形 加工仿真 有限元 |
| 文章编号： | 1003-0794（2007）02-0105-03 |
| 修稿时间： | 2006-10-30 |
Machining Deformation Resulted by Residual Stress Releasing in Cutting |
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| LIU Sheng-yong,WAN Xiao-hang,DONG Zhao-wei.Machining Deformation Resulted by Residual Stress Releasing in Cutting[J].Coal Mine Machinery,2007,28(2):105-107. |
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| Authors: | LIU Sheng-yong WAN Xiao-hang DONG Zhao-wei |
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| Affiliation: | 1. Hebei Normal University, Shijiazhuang 050031, China; 2. Vocational and Industry Technology Institute of Hebei, Shijiazhuang 050091, China |
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| Abstract: | In order to study the releasing of residual stress how affects machining deformation, the 3 - D milling FEM analysis model is established based the plastic- elastic method, which uses the element birth and death technique and the movement restriction to simulate the material removal process and the part fixture. Compared the simulation data and the experimentation data, it is can be drawn that the residual stress remaining in the rough cast released symmetrically reduces the machining deformation in the milling process. |
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| Keywords: | residual stress machining deformation machining simulation finite element method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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