Study of an ultrafine w-EDM technique

Shun-Tong Chen, Hong Ye Yang, Chih Wei Du

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

A precision ultrafine w-EDM (wire electrical discharge machining) technique specifically for machining intricate parts and structures is developed in this paper. A thumb-sized and versatile w-EDM device equipped with a complete control system for wire tension (ultrafine tungsten wire of 13 νm diameter) is designed and employed for the study of ultrafine w-EDM. The tension of the wire electrode is controlled by magnetic repulsive force to steady the wire during machining. Ultrafine wire cutting can be conducted in vertical-, horizontal- or slantwise-wire arrangements. Via some experiments, optimal machining conditions including discharge capacitance, feed rate, wire tension and the appropriate design for the w-EDM device are obtained. Two miniature samples including a micro of Taipei's landmark 101 building and a micro relay are fabricated and the feasibility of the proposed approach is verified. It is confirmed that the ultrafine w-EDM technique using an ultrafine tungsten wire of 13 νm was realized successfully.

Original languageEnglish
Article number115033
JournalJournal of Micromechanics and Microengineering
Volume19
Issue number11
DOIs
Publication statusPublished - 2009 Nov 9

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Electric discharge machining
Wire
Machining
Tungsten
Ultrafine
Capacitance

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Cite this

Study of an ultrafine w-EDM technique. / Chen, Shun-Tong; Yang, Hong Ye; Du, Chih Wei.

In: Journal of Micromechanics and Microengineering, Vol. 19, No. 11, 115033, 09.11.2009.

Research output: Contribution to journalArticle

Chen, Shun-Tong ; Yang, Hong Ye ; Du, Chih Wei. / Study of an ultrafine w-EDM technique. In: Journal of Micromechanics and Microengineering. 2009 ; Vol. 19, No. 11.
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