|本期目录/Table of Contents|

Electrostatic Actuating Bendable Flat Electrode for Micro Electrochemical Machining(PDF)

《纳米技术与精密工程》[ISSN:1672-6030/CN:12-1351/O3]

期数:
2018年2期
页码:
133-137
栏目:
出版日期:
2018-06-15

文章信息/Info

Title:
Electrostatic Actuating Bendable Flat Electrode for Micro Electrochemical Machining
作者:
-
Author(s):
Ruining Huang* Xiaokun Zhu
Harbin Institute of Technology (Shenzhen), Shenzhen 518000, China
关键词:
-
Keywords:
μECM Flat electrode Electrostatic actuation Current density Gap control
分类号:
-
DOI:
10.13494/j.npe.20180006
文献标识码:
A
摘要:
-
Abstract:
In micro-electrochemical machining (μECM), material dissolution takes place at very close vicinity of tool electrode due to localization of electric field. Controlling the gap between tool electrode and workpiece is the key to μECM. Therefore, a new method is proposed to solve a variety of problems in small gap control. In the present context, experiments were carried out with an indigenously developed setup to fabricate cylindrical arrays. During the machining process, the flat electrode bends due to electrostatic force in pulse on-time, which self-adaptively narrows the gap between the electrode and the workpiece. The workpiece material will be removed once the gap meets the processing condition. Therefore, this method has advantages of reducing dependence on high precision machine tools and of avoiding complex servo control. The flat electrode quickly restores to its original condition when it is in pulse off-time, making the gap much larger than that in traditional electrochemical machining (ECM). The large gap benefits debris removing, which improves the machining accuracy. The influence of different experimental parameters on accuracy and efficiency during the machining process has been investigated. It is observed that with the increase in applied voltage or concentration of electrolyte, the material removal rate and the process gap both increase. The detailed analysis of the experimental results is described in this paper.

参考文献/References

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备注/Memo

备注/Memo:
Article history:
Received 2018-03-01
received in revised form 2018-04-20
accepted 2018-04-27
Available online
Corresponding author.
E-mail address: hrn@hit.edu.cn (Ruining Huang)
Peer review under responsibility of Tianjin University.
更新日期/Last Update: 2018-09-21