Fabricating microgrooves with varied cross-sections by electrodischarge machining

Jiwang Yan, Takuya Kaneko, Kazunori Uchida, Nobuhito Yoshihara, Tsunemoto Kuriyagawa

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

A two-step electrodischarge machining method was proposed for fabricating microgrooves with varied cross-sections on hard materials. Firstly, tungsten tool electrodes were shaped by wire electrodischarge grinding, and then the resulting tool electrodes were used to electrodischarge machine microgrooves on stainless steel. Preliminary experimental results showed that, in the first step, a sharp tool electrode with surface roughness of 0.3 μmRa could be achieved, and the surface roughness of the resulting groove was 0.16 μmRa in the second step. Voltage strongly affects the machining speed. A high voltage (>70 V) was preferable for improving the material removal rate. However, significant tool wear took place when using a high condenser capacitance at high voltages. To suppress tool wear, a high voltage and a small capacitance should be used. As test pieces, microgrooves having rectangular, triangular, circular and semi-closed cross-sections were fabricated.

Original languageEnglish
Pages (from-to)991-1002
Number of pages12
JournalInternational Journal of Advanced Manufacturing Technology
Volume50
Issue number9-12
DOIs
Publication statusPublished - 2010 Oct
Externally publishedYes

Fingerprint

Machining
Electric potential
Electrodes
Capacitance
Surface roughness
Wear of materials
Tungsten
Stainless steel
Wire

Keywords

  • EDM
  • Electrodischarge machining
  • Microchannel
  • Microfabrication
  • Microgroove
  • Micromachining
  • Structured surface

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Control and Systems Engineering
  • Computer Science Applications
  • Software
  • Mechanical Engineering

Cite this

Fabricating microgrooves with varied cross-sections by electrodischarge machining. / Yan, Jiwang; Kaneko, Takuya; Uchida, Kazunori; Yoshihara, Nobuhito; Kuriyagawa, Tsunemoto.

In: International Journal of Advanced Manufacturing Technology, Vol. 50, No. 9-12, 10.2010, p. 991-1002.

Research output: Contribution to journalArticle

Yan, Jiwang ; Kaneko, Takuya ; Uchida, Kazunori ; Yoshihara, Nobuhito ; Kuriyagawa, Tsunemoto. / Fabricating microgrooves with varied cross-sections by electrodischarge machining. In: International Journal of Advanced Manufacturing Technology. 2010 ; Vol. 50, No. 9-12. pp. 991-1002.
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