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A study of the effects of working fluids on micro-hole arrays in micro-electrical discharge machining

  • Guozheng Zhu
  • , Jicheng Bai*
  • , Yongfeng Guo
  • , Yan Cao
  • , Yongyi Huang
  • *Corresponding author for this work
  • School of Mechatronics Engineering, Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

This article investigates the impact of dielectrics on the properties of micro-holes fabricated by micro-electrical discharge machining. Based on experiments using kerosene and deionised water as the working fluid, the machining in different dielectrics is investigated. The flow of the water is analysed by means of a flow field simulation, and corresponding experiments are also conducted to verify the simulation results. Suitable parameters are obtained to process a microhole array with 256 holes, a configuration widely used in printer ejector mechanisms. The average diameter of the holes is 44.47μm, and the maximum diameter deviation is 1.3μm.

Original languageEnglish
Pages (from-to)1381-1392
Number of pages12
JournalProceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture
Volume228
Issue number11
DOIs
StatePublished - 1 Jan 2014
Externally publishedYes

Keywords

  • Deionised water
  • Electrode wear
  • Micro-electrical discharge machining
  • Micro-hole array
  • Working fluid

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