| Elastic-plastic finite element simulation for diamond turning process |
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| 作者姓名： | 宗文俊 李旦 孙涛 王洪祥 程凯 董申 |
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| 作者单位： | School of Mechanical Electrical Engineering Harbin Institute of Technology Harbin 150001 China，School of Mechanical Electrical Engineering Harbin Institute of Technology Harbin 150001 China，School of Mechanical Electrical Engineering Harbin Institute of Technology Harbin 150001 China，School of Mechanical Electrical Engineering Harbin Institute of Technology Harbin 150001 China，School of Mechanical Electrical Engineering Harbin Institute of Technology Harbin 150001 China，School of Mechanical Electrical Engineering Harbin Institute of Technology Harbin 150001 China |
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| 基金项目： | Sponsored by the National Natural Science Foundation of China （ Grant No. 50175022 and No. 10576011 ）. |
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| 摘 要： | Diamondturningprocessischaracterizedbyhigh dimensionalaccuracyandgoodsurfaceintegrityandhasbeenappliedinmanyadvancedindustrialfields,such ascomputer,automobile,opticsmanufacturing,etc.Usingthistechnology,thesoftmetal,suchasalumi numorcopperoritsalloys,can…
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| 关 键 词： | 弹塑有限元法 金刚石车削 切削刀具 刀口半径 |
| 文章编号： | 1005-9113（2006）01-0088-06 |
| 收稿时间： | 2003-08-25 |
Elastic-plastic finite element simulation for diamond turning process |
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| ZONG Wen-jun,LI Dan,SUN Tao,WANG Hong-xiang,CHENG Kai,DONG Shen.Elastic-plastic finite element simulation for diamond turning process[J].Journal of Harbin Institute of Technology,2006,13(1):88-93. |
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| Authors: | ZONG Wen-jun LI Dan SUN Tao WANG Hong-xiang CHENG Kai DONG Shen |
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| Abstract: | Using general commercial software, a coupled thermo-mechanical plane strain larger deformation orthogonal cutting model is developed on the basis of updated Lagrangian formulation in this paper. The workpiece is oxygen free high conductivity copper (OFHC copper), its flow stress is considered as a function of strain, strain rate and temperature to reflect its realistic changes in physical properties. In order to take into account the cutting edge radius effects of the single crystal diamond tool, rezoning technology is introduced into this simulation model. Diamond turning process is simulated from the initial stage to the steady stage of chip formation, and the distribution of temperature, equivalent stress, residual stress, strain rate and shear angle are obtained. The simulated principal force is compared with published experiment data and they are found to be in good agreement with each other, but poor for thrust force due to no consideration of elastic recovery for machined surface in the elastic-plastic material model. |
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| Keywords: | elastic-plastic FEM simulation diamond turning cutting edge radius |
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