Accuracy improvement in nanographite powder-suspended dielectric fluid for micro-electrical discharge machining processes

Prihandana, Gunawan Setia and Mahardika, Muslim and Hamdi, M. and Wong, Y.S. and Mitsui, Kimiyuki (2011) Accuracy improvement in nanographite powder-suspended dielectric fluid for micro-electrical discharge machining processes. The International Journal of Advanced Manufacturing Technology, 56 (1-4). pp. 143-149. ISSN 0268-3768

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Abstract

Micro-electric discharge machining (mu-EDM) is an important manufacturing process that is able to produce components and tools with micro-features. Improvement to this process has resulted in the use of powder mixed dielectric (PMD), which results in better surface quality and faster machining time. However, the presence of conductive powder in the dielectric fluid negatively affects the accuracy of the machining depth. This paper presents a novel method of suspending nanographite powder in dielectric fluid, using ultrasonic vibration of dielectric fluid, and using the number of discharge pulses in order to improve the accuracy of the PMD-mu-EDM process. As a result, machining time has been significantly reduced up to 35, accuracy increased, and the appearance of micro-cracks on the workpiece surface has been reduced.

Item Type: Article
Uncontrolled Keywords: micro-electric discharge machining nanopowder suspended in dielectric fluid machining accuracy micro-cracks ultrasonic vibration of dielectric fluid edm vibration
Subjects: T Technology > TS Manufactures
Divisions: Faculty of Engineering
Depositing User: Mr. Mohammed Salim Abd Rahman
Date Deposited: 09 Jul 2013 04:27
Last Modified: 12 Dec 2014 06:00
URI: http://eprints.um.edu.my/id/eprint/6921

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