An index to evaluate the wear resistance of the electrode in micro-EDM
An index to evaluate the wear resistance of the electrode in micro-EDM
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DOI：
10.1016/j.jmatprotec.2004.02.043
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发表时间：
2004-06-10
影响因子：
6.3
通讯作者：
Masuzawa, T
中科院分区：
文献类型：
--
作者：
Tsai, YY;Masuzawa, T
电火花加工过程非常复杂，包括电介质中等离子体的形成、电子与热离子的相互作用以及热传递。电火花加工的材料去除机理是基于电能传递和热过程。然而，从电能到热能的能量转换仍然是一个未知的话题，特别是在使用小能量（< 100 μ J）的微细电火花加工中。在这项研究中，热性能对电极磨损的影响进行了研究。结果表明，电极材料的沸点对微细电火花加工的磨损机理有重要影响。因此，在考虑电极材料的耐磨性时，沸点不可忽略。一个建议是引入一个新的函数，其中考虑潜热作为温度的修改类型。在微细电火花加工性能中获得的实验数据显示出与这个新指标的强相关性。(C)2004 Elsevier B.V.保留所有权利。
The EDM is very complex including plasma formation in the dielectric, interaction between electrons and thermal ions, and heat transfer. It has been known that the mechanism of material removal in EDM is based on electrical energy transfer and thermal process. However, energy transfer from electric energy into thermal energy is still an unknown topic, particularly in micro-EDM using small energy (< 100 muJ). In this study, the effects of thermal properties on electrode wear were investigated. It was evident that the boiling point of the electrode material plays an important role in the wear mechanism of micro-EDM. Therefore, the boiling point cannot be negligible in considering the wear resistance of the electrode material. A proposal is to introduce a new function where the latent heats are taken into account as a modified type of the temperatures. The experimental data obtained in micro-EDM performance shows strong correlation with this new index. (C) 2004 Elsevier B.V. All rights reserved.