Effect of micro-EDM parameters on material removal rate of nonconductive ZrO2 ceramic

Sabur, Abdus and Moudood, M. A. and Ali, Mohammad Yeakub and Maleque, Md. Abdul (2011) Effect of micro-EDM parameters on material removal rate of nonconductive ZrO2 ceramic. Applied Mechanics and Materials, 465-66. pp. 1329-1333. ISSN 1660-9336

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Abstract

Micro-electro discharge machining (micro-EDM) technique, an advanced noncontact machining process, is used for structuring of nonconductive ZrO2 ceramic. In this study copper foil as a conductive layer is adhered on the workpiece surface to initiate the sparks and kerosene is used as dielectric for creation of continuous conductive pyrolytic carbon layer on the machined surface. Voltage (V) and capacitance (C) are considered as the parameters to investigate the process capability of machining parameters in continuous micro-EDM of ZrO2. Different voltage pulses are studied to examine the causes of lower material removal rate (MRR) in micro-EDM of nonconductive ceramics. The results showed that in micro-EDM of ZrO2 MRR increases with the increase of voltage and capacitance initially, but decreases at higher values and no significant materials are removed at capacitances higher than 1nF.

Item Type:	Article (Journal)
Additional Information:	4751/40690
Uncontrolled Keywords:	Nonconductive ceramic, micro-electro discharge machining, assisting electrode, pyrolytic carbon
Subjects:	T Technology > TS Manufactures > TS200 Metal manufactures. Metalworking
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering
Depositing User:	Prof. Ir. Dr. Mohammad Yeakub Ali
Date Deposited:	21 Jan 2015 12:51
Last Modified:	25 Mar 2015 08:05
URI:	http://irep.iium.edu.my/id/eprint/40690

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