Carbon nanofiber assisted micro electro discharge machining of reaction-bonded silicon carbide

Pay Jun Liew, Jiwang Yan, Tsunemoto Kuriyagawa

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

Carbon nanofiber assisted micro electro discharge machining was proposed and experiments were performed on reaction-bonded silicon carbide. The changes in electro discharging behavior, material removal rate, electrode wear ratio, electrode geometry, spark gap, surface finish, surface topography and surface damage with carbon nanofiber concentration were examined. It has been found that the addition of carbon nanofiber not only improves the electro discharge frequency, material removal rate, discharge gap, but also reduces the electrode wear and electrode tip concavity. Bidirectional material migrations between the electrode and the workpiece surface were detected, and the migration behavior was strongly suppressed by carbon nanofiber addition. Adhesion of carbon nanofibers to the workpiece surface occurs, which contributes to the improvement of electro discharge machinability. These findings provide possibility for high-efficiency precision manufacturing of microstructures on ultra-hard ceramic materials.

Original languageEnglish
Pages (from-to)1076-1087
Number of pages12
JournalJournal of Materials Processing Technology
Volume213
Issue number7
DOIs
Publication statusPublished - 2013

Fingerprint

Nanofibers
Electric discharge machining
Carbon nanofibers
Machining
Silicon carbide
Electrode
Silicon
Carbon
Electrodes
Migration
Wear of materials
Surface Topography
Machinability
Concavity
Surface topography
Ceramic materials
Adhesion
Electric sparks
High Efficiency
Microstructure

Keywords

  • Carbon nanofiber
  • Micro electro discharge machining
  • Micro fabrication
  • Reaction-bonded silicon carbide
  • Ultra-hard ceramics

ASJC Scopus subject areas

  • Computer Science Applications
  • Modelling and Simulation
  • Ceramics and Composites
  • Metals and Alloys
  • Industrial and Manufacturing Engineering

Cite this

Carbon nanofiber assisted micro electro discharge machining of reaction-bonded silicon carbide. / Liew, Pay Jun; Yan, Jiwang; Kuriyagawa, Tsunemoto.

In: Journal of Materials Processing Technology, Vol. 213, No. 7, 2013, p. 1076-1087.

Research output: Contribution to journalArticle

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