Influence of high frequency pulse on electrode wear in micro-EDM

被引：9
|
作者：
Li, Xiao-Peng [1 ,2 ]
Wang, Yuan-Gang [2 ]
Zhao, Fu-Ling [1 ]
Wu, Meng-Hua [2 ]
Liu, Yu [3 ]
机构：
[1] Dalian Univ Technol, Dalian 116024, Peoples R China
[2] Dalian Univ, Dalian 116622, Peoples R China
[3] Dalian Jiaotong Univ, Dalian 116028, Peoples R China
来源：
DEFENCE TECHNOLOGY | 2014年 / 10卷 / 03期
基金：
中国国家自然科学基金;
关键词：
High-frequency pulse; Electromagnetic coupling model; NieTiN/Cu composite electrode; Electrode wear; Micro-EDM;
D O I：
10.1016/j.dt.2014.07.007
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An electromagnetic coupling mathematical model is established by finite element method and is verified by the contrastive experiments of copper matrix NieTiN cylindrical coating electrode, copper electrode and Cu50W electrode. The wear mechanism of NieTiN/Cu composite electrode in the case of high-frequency pulse current is studied, and the influence of the fluctuation frequency of discharge current on electrode wear in micro-EDM is found out. Compared with the electrode made from homogeneous material, the high frequency electromagnetic properties of NieTiN composite layer can be used effectively to inhibit the effect of high frequency pulse on the electrode and improve the distribution trend of current density. Copyright (C) 2014, China Ordnance Society. Production and hosting by Elsevier B.V. All rights reserved.
引用
收藏
页码：316 / 320
页数：5
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