广东工业大学学报 ›› 2020, Vol. 37 ›› Issue (04): 75-78.doi: 10.12052/gdutxb.190135

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电火花钻削高精度盲孔实验研究

梁世雍, 于兆勤, 黄文彬, 肖成龙   

  1. 广东工业大学 机电工程学院，广东 广州 510006
  • 收稿日期:2019-10-20 出版日期:2020-07-11 发布日期:2020-07-02
  • 通信作者: 于兆勤(1960-)，男，教授，主要研究方向为超精密加工和先进制造技术，E-mail：zqyu@gdut.edu.cn E-mail:zqyu@gdut.edu.cn
  • 作者简介:梁世雍(1994-)，男，硕士研究生，主要研究方向为特种加工
  • 基金资助:
    国家自然科学基金资助项目(51675105)；广东省自然科学基金资助项目(2017A030313330)

A Research on EDM Drilling High Precision Blind Hole

Liang Shi-yong, Yu Zhao-qin, Huang Wen-bin, Xiao Cheng-long   

  1. School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, China
  • Received:2019-10-20 Online:2020-07-11 Published:2020-07-02

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摘要： 针对电火花加工中电极损耗问题, 提出轴向补偿电极损耗的钻孔方法, 利用黄铜和紫铜2种不同电极材料在超精密电火花加工机床(Sarix SX-200hpm)上, 对钛合金进行不同深度盲孔加工实验, 对比了该法与电极损耗无补偿加工的差异。结果表明，利用该方法加工的盲孔深度能接近预期深度，且紫铜电极加工的盲孔形貌更好。

关键词: 电火花钻削, 轴向补偿, 高精度

Abstract: Aiming at the problem of electrode wear in electrical discharge machining(EDM), a drilling method for axial compensation of electrode wear is proposed. A series of blind holes of different intended depths are drilled on the micro-EDM machine (Sarix SX-200hpm) using the proposed method and they are compared with holes drilling without compensation. The brass and copper are employed as tool electrode and the workpiece is Titanium alloy (TC4). As a result the depth of blind hole processed by this method can be close to the expected and the morphology of blind hole processed with the copper electrode is better.

Key words: EDM drilling, axial compensation, high accuracy

中图分类号: 

  • TG661
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