A novel method of determining energy distribution and plasma diameter of EDM
A novel method of determining energy distribution and plasma diameter of EDM
复制标题
一种确定电火花加工能量分布和等离子体直径的新方法
DOI：
10.1016/j.ijheatmasstransfer.2014.03.082
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发表时间：
2014-08-01
影响因子：
5.2
通讯作者：
Cai, Baoping
中科院分区：
文献类型：
--
作者：
Zhang, Yanzhen;Liu, Yonghong;Cai, Baoping
提出了一种确定电火花加工能量分布和等离子体直径的新方法。通过比较金相法得到的熔坑内熔化材料的边界和有限元法得到的热物理模型的等温曲线，确定了熔坑内的能量分布和等离子体直径。研究结果表明，为了更符合实际电火花加工过程，必须考虑等离子体直径的膨胀。利用该方法研究了不同极性的等离子体中的能量分布和等离子体直径。通过与已有文献的比较表明，该方法可以确定工件中的能量分布和等离子体直径。(C)2014爱思唯尔有限公司版权所有。
This work proposed a novel method of determining the energy distribution and plasma diameter of EDM. The energy distribution and plasma diameter were determined by comparing the boundary of the melted material in the crater which was obtained by metallographic method and the isothermal curve of the thermal-physical model using finite element method (FEM). The results of this work indicated that the expansion of the plasma diameter must be taken into consideration in order to be more consistent with the actual EDM process. With this method, the energy distribution and plasma diameter in different dielectrics with different polarities were investigated. Comparison between the results of this work and the previously reports showed that the energy distributed into workpiece and plasma diameter can be determined by this new method. (C) 2014 Elsevier Ltd. All rights reserved.