电火花加工单脉冲放电通道直径扩展规律研究

doi:10.3901/JME.2016.09.208

机械工程学报 ›› 2016, Vol. 52 ›› Issue (9): 208-212.doi: 10.3901/JME.2016.09.208

• 论文 • 上一篇

电火花加工单脉冲放电通道直径扩展规律研究

常伟杰¹, 陈远龙¹, 张建华², 徐斌³, 方明¹

1. 合肥工业大学机械与汽车工程学院合肥 230009;
2. 山东大学机械工程学院济南 250061;
3. 安徽工业大学机械工程学院马鞍山 243032

出版日期:2016-05-05 发布日期:2016-05-05
作者简介:常伟杰,男,1981年出生,博士,讲师。主要研究方向为特种加工技术。E-mail：changwj1981@hfut.edu.cn;陈远龙(通信作者),男,1964年出生,博士,教授,博士研究生导师。主要研究方向为特种加工技术。E-mail：chenyuanlong@hfut.edu.cn;张建华,男,1964年出生,博士,教授,博士研究生导师。主要研究方向为特种加工技术。
基金资助:
国家科技重大专项(2012ZX04010032)、中央高校基本科研业务费专项资金(2013HGCH0004,2013HGBH0060)、合肥工业大学博士学位人员专项(JZ2014HGBZ0007)资助项目

Single Pulse Discharge Channel Expansion Laws of EDM

CHANG Weijie, CHEN Yuanlong, ZHANG Jianhua, XU Bin, FANG Ming

1. School of Mechanical and Automotive Engineering, Hefei University of Technology, Hefei 230009;
2. School of Mechnical Engineering, Shandong University, Jinan 250061;
3. School of Mechnical Engineering, Anhui University of Technology, Maanshan 243032

Online:2016-05-05 Published:2016-05-05

摘要/Abstract

摘要： 电火花加工的加工表面是由一系列的脉冲放电凹坑叠加而成的,因此研究单脉冲放电通道直径的扩展规律,对研究电火花加工的工艺规律以及加工表面质量预测等具有非常重要的意义。研究脉冲放电通道的形成与扩展机理,讨论电压、极值电流、脉宽等放电参数对放电通道直径扩展的影响,并根据理论推导建立了单脉冲放电通道直径扩展的数学模型。以煤油作为电介质工作液开展了单脉冲放电试验,使用超景深显微镜对单脉冲放电凹坑的直径进行了测量,并把测量得到的单脉冲放电直径数据代入建立的数学模型进行回归求解。回归公式的计算值与试验测量得到的单脉冲直径数据吻合度较高。

关键词: 单脉冲, 电火花加工(EDM), 放电通道, 扩展规律

Abstract: The surface of electrical discharge machining (EDM) processing is consisted of a series of discharge pits. The single pulse discharge rule has very important significance to the research of the electrical discharge machining technology and surface quality prediction. The pulse discharge channel formation and expansion mechanism is studied and the influence of discharge parameters on the discharge channel expanding is discussed. A mathematical model is established. Pulse discharge experiments are carried out in kerosene medium and the pulse discharge pits diameters are measured. Model of single pulse discharge diameter according to the established mathematical is regressed, and the regression formula calculation values and experimental values agree well by comparing.

Key words: discharge channel, electric discharge machining (EDM), extension rule, single sparks

中图分类号:

TG661

常伟杰, 陈远龙, 张建华, 徐斌, 方明. 电火花加工单脉冲放电通道直径扩展规律研究[J]. 机械工程学报, 2016, 52(9): 208-212.

CHANG Weijie¹, CHEN Yuanlong¹, ZHANG Jianhua², XU Bin³, FANG Ming¹. Single Pulse Discharge Channel Expansion Laws of EDM[J]. Journal of Mechanical Engineering, 2016, 52(9): 208-212.

参考文献

[1] CHERN G L,WU Y JE,CHENG J C,et al. Study on burr formation in micro-machining using micro-tools fabricated by micro-EDM[J]. Science Direct,2007,31：122-129.
[2] SHEU D Y. Multi-spherical probe machining by EDM combining WEDG technology with one-pulse electro-discharge[J]. Journal of Materials Processing Technology,2004,149：597-603.
[3] 李文卓,刘加光,于云霞. 微细电火花加工机床关键技术[J]. 机械工程学报,2007,43(1)：170-175.
LI Wenzhuo,LIU Jiaguang,YU Yunxia. Key technologies of micro EDM machine tools[J]. Chinese Journal of Mechanical Engineering,2007,43(1)：170-175.
[4] 刘蜀阳,黄玉美. 基于场致发射理论的 EDM 平板电容模型及其参数研究[J]. 机械工程学报,2011,47(17)：141-149.
LIU Shuyang,HUANG Yumei. A plate-capacitor model of EDM process based on field electron emission theory and its parameters analysis[J]. Journal of Mechanical Engineering,2011,47(17)：141-149.
[5] MING W Y,ZHANG G J,LI H,et al. A hybrid process model for EDM based on finite-element method and Gaussian process regression [J]. International Journal of Advanced Manufacturing Technology,2014,74(9-12)：1197-1211.
[6] SOMASHEKHAR K P,MATHEW J,RAMACHANDRAN N. Electrothermal theory approach for numerical approximation of the μ-EDM process [J]. International Journal of Advanced Manufacturing Technology,2012,61(9-12)：1241-1246.
[7] DAS S,JOSHI S S. Modeling of spark erosion rate in microwire-EDM [J]. International Journal of Advanced Manufacturing Technology,2010,48(5-8)：581-596.
[8] GOVINDAN P,GUPTA A,SUHAS S J,et al. Single-spark analysis of removal phenomenon in magnetic field assisted dry EDM [J]. Journal of Materials Processing Technology,2013,213(7)：1048-1058.
[9] KOJIMA A,NATSU W,KUNIEDA M. Spectroscopic measurement of arc plasma diameter in EDM[C]// CIRP Annals - Manufacturing Technology,2008,57：203-207.
[10] SNOTYS R,DIJCK V F. Plasma channel diameter growth affects stock removal in EDM[C]//Ann. CIRP 21,1972：34-40.
[11] HOCKENBERRY T Q,WILLIAMS E M. Dynamic evolution of events accompanying the low-voltage discharges employed in EDM[J]. IEEE Trans. I. G. A. 3,1967,4：302.
[12] 于丽丽,刘永红,纪仁杰. 非导电工程陶瓷电火花加工放电通道模拟[J]. 系统仿真学报,2009,21(1)：286-288.
YU Lili,LIU Yonghong,JI Renjie,et al. Simulation of discharge channel for non-conductive ceramics[J]. Journal of System Simulation,2009,21(1)：286-288.
[13] 李明辉. 电火花加工理论基础[M]. 北京：国防工业出版社,1989.
LI Minghui. EDM theoretical basis [M]. Beijing：National Defense Industry Press,1989.
[14] 李翰如. 电介质物理导论[M]. 成都：成都科技大学出版社,1990.
LI Hanru. An introduction to the dielectric physics [M]. Chengdu：Chengdu University of Science and Technology Press,1990.

电火花加工单脉冲放电通道直径扩展规律研究

Single Pulse Discharge Channel Expansion Laws of EDM

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