Paper Title:
Research on Side-Insulation of Tool Electrode for Micro Electrochemical Machining
  Abstract

In micro electrochemical machining (micro ECM), side-insulation of tool electrode can significantly improve the machining accuracy, especially for high aspect ratio structures. This paper presented a new side-insulation approach for not only micro single electrodes but also micro array electrodes, in which spin-coating and room curing are used to coat the micro tool electrodes with a very thin film of polymer, followed by an end-rubbing process to remove the insulation material from the electrode end surfaces. Processing parameters of spin-coating were optimized experimentally, and side-insulated micro single electrodes with a double-layer epoxy coating of 3m thickness were prepared. Experiments were made to test the performance of the side-insulation film under simulated micro ECM conditions. And the results demonstrated good insulativity and high adherence strength in a 6-hour durability test. Also side-insulation for micro array electrodes was performed using this approach.

  Info
Periodical
Advanced Materials Research (Volumes 60-61)
Edited by
Xiaohao Wang
Pages
380-387
DOI
10.4028/www.scientific.net/AMR.60-61.380
Citation
G. H. Liu, Y. Li, X. P. Chen, S. J. Lv, "Research on Side-Insulation of Tool Electrode for Micro Electrochemical Machining ", Advanced Materials Research, Vols. 60-61, pp. 380-387, 2009
Online since
January 2009
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Price
$32.00
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