| 直角切削过程中应变的有限元分析 |
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| 引用本文： | 曲海军,杨金花,王贵成,刘旭,朱云明. 直角切削过程中应变的有限元分析[J]. 机械科学与技术, 2013, 32(1): 59-62 |
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| 作者姓名： | 曲海军 杨金花 王贵成 刘旭 朱云明 |
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| 作者单位： | 1. 河南理工大学机械与动力工程学院,焦作,454000
2. 江苏大学机械工程学院,镇江,212013 |
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| 基金项目： | 国家自然科学基金项目(51005192,50675088,B2012-054)资助 |
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| 摘 要： | 基于材料模型,断裂准则,刀具与工件以及切屑的接触关系等建立了分析直角切削过程中应变的有限元模型。根据有限元分析结果分析了正常切削过程中3个变形区和两侧方向应变以及应变造成的主要影响,两侧方向应变形成了两侧方向毛刺;第一变形区和第三变形区的应变使工件表面产生了变质层;第一变形区和第二变形区形成切屑并影响切屑的应变分布。
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| 关 键 词： | 两侧方向应变 两侧方向毛刺 变质层 切屑 有限元方法 切削过程 |
FEM Analysis of Strain in Orthogonal Cutting |
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| Qu Haijun,Yang Jinhua,Wang Guicheng,Liu Xu,Zhu Yunming. FEM Analysis of Strain in Orthogonal Cutting[J]. Mechanical Science and Technology for Aerospace Engineering, 2013, 32(1): 59-62 |
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| Authors: | Qu Haijun Yang Jinhua Wang Guicheng Liu Xu Zhu Yunming |
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| Affiliation: | 1 School of Mechanical and Power Engineering,Henan Polytechnic University,Jiaozuo 454000; 2 School of Mechanical Engineering,Jiangsu University,Zhenjiang 212013) |
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| Abstract: | A finite element model was developed to simulating the strain in orthogonal cutting process based on the material model,fracture criterion and contact relationship between cutter and workpiece.According to analysis results of FEM,three deformation zones and two side direction strains were analyzed;and two side direction burrs were formed as results of two side direction strain.Finished surface material becomes affected layer due to primary deformation zone and third deformation zone.Cutting layer material becomes chip in primary deformation zone and second deformation zones,and the strain distribution of chip was determined by these two deformation zones.Finite element model generated here provided a numerical analysis method to study the burr formation mechanism,affected layer and strain of chip. |
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| Keywords: | two side direction strain two side direction burr affected layer chip finite element method cutting process |
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