| A Microplasticity Analysis of Cutting Force Variation in Ultraprecision Machining |
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| 引用本文： | 周明,袁哲俊,董万福.A Microplasticity Analysis of Cutting Force Variation in Ultraprecision Machining[J].哈尔滨工业大学学报(英文版),1996(4). |
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| 作者姓名： | 周明 袁哲俊 董万福 |
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| 作者单位： | Dept. of Mechanical Engineering，Harbin Institute of Technology，Harbin，150001，China |
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| 摘 要： | ＡＭｉｃｒｏｐｌａｓｔｉｃｉｔｙＡｎａｌｙｓｉｓｏｆＣｕｔｔｉｎｇＦｏｒｃｅＶａｒｉａｔｉｏｎｉｎＵｌｔｒａｐｒｅｃｉｓｉｏｎ ＭａｃｈｉｎｉｎｇＺＨＯＵＭｉｎｇ；ＹＵＡＮＺｈｅｊｕｎ；ＤＯＮＧＷａｎｆｕ（周明），（袁哲俊），（董万福）（Ｄｅｐｔ．ｏ...
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A Microplasticity Analysis of Cutting Force Variation in Ultraprecision Machining |
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| ZHOU Ming, YUAN Zhejun, DONG Wanfu.A Microplasticity Analysis of Cutting Force Variation in Ultraprecision Machining[J].Journal of Harbin Institute of Technology,1996(4). |
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| Authors: | ZHOU Ming YUAN Zhejun DONG Wanfu |
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| Abstract: | Most studies of the cutting mechanism are performed under the assumption that the material is an isotropic and homogeneous continuum. The effect of material anisotropy is often not included in the theoretical analysis. In this paper, the relation between the crystal orientation and the cutting force fluctuation is analyzed based on a microplastic mechanical model. Analytical results show that the crystal orientation of the material being cut exerts a great influence on ultraprecision machining process. The shear strength of a crystallite is not a constant for a given material but varies with the change of crystallographic cutting direction. The trend in the variation of theoretical equivalent Taylor factor M' which indicates the shear strength compares well with that of published experimental data of cutting force. |
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| Keywords: | ss: Crystal orientation cutting force shear strength |
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