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

Liew , Pay Jun and Yan , Jiwang and Kuriyagawa, Tsunemoto (2013) Carbon nanofiber assisted micro electro discharge machining of reaction-bonded silicon carbide. Journal of Materials Processing Technology. pp. 1076-1087. ISSN 0924-0136

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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.

Item Type: Article
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TS Manufactures
Divisions: Faculty of Manufacturing Engineering > Department of Manufacturing Process
Depositing User: PAY JUN LIEW
Date Deposited: 04 Feb 2014 01:56
Last Modified: 28 May 2015 04:14
URI: http://eprints.utem.edu.my/id/eprint/10915

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