Measurement and finite element simulation of micro-cutting temperatures of tool tip and workpiece
Measurement and finite element simulation of micro-cutting temperatures of tool tip and workpiece
复制标题
刀尖和工件微切削温度的测量与有限元模拟
DOI：
10.1016/j.ijmachtools.2013.08.005
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发表时间：
2013-12
影响因子：
14
通讯作者：
Li, Yuanchen
中科院分区：
文献类型：
--
作者：
Ren, Chengzu;Zhang, Pan;Cui, Kuihu;Li, Yuanchen
微细切削过程中产生的温度由于集中发热，对切削性能影响很大。在本研究中，进行了一组微切削实验（8μm/r≤f≤50μm/r），以高精度测量微切削过程中的温度。将具有自我更新特性的快速响应热电偶安装在圆柱体工件中，同时测量工件和刀尖的温度。在每次测试中，在加工热电偶热端之前获得工件表面的温度。加工热端时，将测试的最高温度视为刀尖温度。同时，开发了基于能量密度的延性破坏材料模型，以通过有限元方法模拟微切削过程。仿真中，当网格分布发生变化时，相同能量密度Gε下的预测力比相同能量Gf下预测的力更接近于原始网格分布下的力。因此，基于能量密度的延性破坏材料模型可以减少不同网格分布条件下的网格依赖性。在新的网格分布下，工件表面和刀尖的温度在预测的微切削温度场中被识别。预测的工件表面和刀尖微切削温度与实验结果非常接近。此外，还讨论了温度的变化及其与芯片卷曲的关系。
Temperature generates in micro-scale cutting process has a great effect on cutting performance due to centralized heat generation. In this study, a set of micro-cutting experiments (8 μm/r≤f≤50 μm/r) were carried out to measure temperatures in micro-cutting process with high accuracy. A fast-response thermocouple with a property of self-renewing was installed in a cylinder workpiece to measure the temperatures of workpiece and tool tip simultaneously. In each test, temperature of the workpiece surface is obtained just before the hot junction of thermocouple is machined. When the hot junction is machined, the tested maximum temperature is recognized as the temperature of tool tip. In parallel, an energy density-based ductile failure material model is developed to simulate the micro-cutting process by finite element method. In simulation, when mesh distribution is changed, the predicted forces with same energy densityGεare closer to the forces at original mesh distribution than those predicted by same energyGf. Consequently, the energy density-based ductile failure material model can reduce mesh dependence in different mesh distribution conditions. Under new mesh distribution, Temperatures of the workpiece surface and tool tip are identified in the predicted micro-cutting temperature field. The predicted micro-cutting temperatures of workpiece surface and tool tip are very close to the experimental results. Further, the variation of temperature and its relationship with chip curling are also discussed.
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影响因子：
2.4
作者：
Jehnming Lin;C. Liu
通讯作者：
Jehnming Lin;C. Liu
DOI：
10.1016/j.ijmachtools.2006.09.007
发表时间：
2007-04-01
影响因子：
14
作者：
Basti, Ali;Obikawa, Toshiyuki;Shinozuka, Jun
通讯作者：
Shinozuka, Jun
DOI：
10.1016/j.ijmachtools.2008.03.013
发表时间：
2008-09-01
影响因子：
14
作者：
Mabrouki, Tarek;Girardin, Francois;Rigal, Jean-Francois
通讯作者：
Rigal, Jean-Francois
DOI：
10.1016/s0007-8506(07)61007-5
发表时间：
1990
期刊：
CIRP Annals
影响因子：
--
作者：
T. Moriwaki;Akira Horiuchi;K. Okuda
通讯作者：
T. Moriwaki;Akira Horiuchi;K. Okuda
DOI：
10.1115/1.4015689
发表时间：
1952-01
期刊：
Journal of Fluids Engineering
影响因子：
--
作者：
J. Outwater;M. Shaw
通讯作者：
J. Outwater;M. Shaw