Investigation of recast layer of non-conductive ceramic due to micro-EDM

Mohamed, Abd. Rahman and Asfana, Banu and Ali, Mohammad Yeakub (2014) Investigation of recast layer of non-conductive ceramic due to micro-EDM. Advanced Materials Research, 845. pp. 857-861. ISSN 1022-6680

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Abstract

This paper presents the investigation of minimum recast layer of zirconium oxide (ZrO2) due to micro-EDM using EDM-3 synthetic oil as dielectric fluid and tungsten as the tool electrode with control parameters of rotational speed and gap voltage. The investigation was performed using multi-process micro machine tools DT 110. The recast layer thickness was observed using scanning electron microscope and its hardness was measured using micro-Vickers hardness tester. The hardness data were analyzed and an empirical model was developed. The optimum value for minimum recast layer hardness was 873.46 Hv with rotational speed of 395 rpm and gap voltage of 110 V.

Item Type:	Article (Journal)
Additional Information:	4751/35540
Uncontrolled Keywords:	Assisting electrode method (AEM); Electro discharge machining (EDM); Non-conductive ceramic; Recast layer
Subjects:	T Technology > TJ Mechanical engineering and machinery T Technology > TS Manufactures
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	Prof. Ir. Dr. Mohammad Yeakub Ali
Date Deposited:	11 Feb 2014 09:37
Last Modified:	21 Sep 2017 12:27
URI:	http://irep.iium.edu.my/id/eprint/35540

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