| 金属切削中刀-屑接触长度的有限元分析 |
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| 引用本文： | 宋金玲,魏天路,顾立志.金属切削中刀-屑接触长度的有限元分析[J].农业机械学报,2003,34(3):118-121. |
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| 作者姓名： | 宋金玲 魏天路 顾立志 |
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| 作者单位： | 1. 佳木斯大学教务处,154007,佳木斯市
2. 佳木斯大学机械工程学院,154007,佳木斯市 |
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| 摘 要： | 通过计算机模拟金属切削连续稳态成屑过程，以三角形元素进行有限元网络划分，采用von—Mises屈服判据和Prandtl-Reuss流动定律，对工件-切屑进行弹-塑性变形及受力分析，从切屑底层元素代表长的积累确定刀具-切屑接触长度。实验研究表明，采用本方法确定的接触长度与实验结果具有很好的一致性。
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| 关 键 词： | 金属切削 刀 屑 接触长度 有限元分析 计算机模拟 三角形元素 |
| 修稿时间： | 2002年2月10日 |
Finite Element Analysis for Tool-chip Contact Length in Metal Machining |
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| Song Jinling,Wei Tianlu,Gu Lizhi.Finite Element Analysis for Tool-chip Contact Length in Metal Machining[J].Transactions of the Chinese Society of Agricultural Machinery,2003,34(3):118-121. |
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| Authors: | Song Jinling Wei Tianlu Gu Lizhi |
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| Institution: | Jiamusi University |
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| Abstract: | A simulative analysis of a metal chip formation process in steady state was carried out to determine the tool chip contact length from the accumulation of the elementary representative length of the bottom layer of the chip. A triangular grid was adopted and the von Mises yield criterion and the Prandtl Reuss flow rule were used during the computer simulation. The experimental results showed that the value of contact length from the simulation had a good agreement with that from the experiments. |
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| Keywords: | Metal cutting technique Chips Contact length Finite element analysis |
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