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Modelling of material removal rate in EDM of nonconductive ZrO2 ceramic by Taguchi method

Sabur, Abdus and Ali, Mohammad Yeakub and Maleque, Md. Abdul (2013) Modelling of material removal rate in EDM of nonconductive ZrO2 ceramic by Taguchi method. In: International Conference on Advances in Mechanical Engineering 2013, ICAME 2013, 28-29 August 2013, Hotel Equatorial , Malacca.

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Abstract

Electro discharge machining (EDM) technique, a noncontact machining process, is applied for structuring nonconductive ZrO2 ceramic. A conductive layer of adhesive copper is applied on the workpiece surface to initiate the sparks. Kerosene is used as dielectric for creation of continuous conductive pyrolytic carbon layer on the machined surface. Experiments are conducted by varying the peak current (Ip), pulse-on time (Ton), pulse-off time (Toff) and gap voltage (Vg). Correlating these variables a mathematical model for material removal rate (MRR) is developed using Taguchi method. The optimized parametric conditions are determined for higher MRR through ANOVA and signal to noise (S/N) ratio analysis. The results showed that the Ip and Ton are the significant parameters of MRR in EDM for nonconductive ZrO2 ceramic. The model also showed that MRR increases with the increase of Ip and Ton, but the process is controlled by Ip as a whole.

Item Type: Conference or Workshop Item (Plenary Papers)
Additional Information: 4751/31175
Uncontrolled Keywords: Assisting electrode; Electro discharge machining; Nonconductive ceramic; Pyrolytic carbon
Subjects: T Technology > T Technology (General) > T173.2 Technological change
T Technology > TJ Mechanical engineering and machinery > TJ1125 Machine shops and machine shop practice
T Technology > TS Manufactures > TS200 Metal manufactures. Metalworking
Kulliyyahs/Centres/Divisions/Institutes: Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User: Prof Dr. M A Maleque
Date Deposited: 01 Aug 2013 11:49
Last Modified: 03 Jan 2018 11:16
URI: http://irep.iium.edu.my/id/eprint/31175

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