Dimensional accuracy in dry micro wire electrical discharge machining

Ali, Mohammad Yeakub and Banu, Asfana and Salehan, Muhammad and Adesta, Erry Yulian Triblas and Hazza Faizi Al Hazza, Muataz and Shaffiq, Muhammad (2018) Dimensional accuracy in dry micro wire electrical discharge machining. Journal of Mechanical Engineering and Sciences, 12 (1). pp. 3321-3329. ISSN 2289-4659 E-ISSN 2231-8380

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Abstract

Dimensional accuracy is important in fabricating miniaturized product in order to reduce the material waste and machining cost as well as to achieve a better quality product. This paper presents the analysis and modelling of dimensional accuracy in dry micro wire electrical discharge machining with control parameters of gap voltage and wire tension. The investigation was performed on stainless steel using integrated multi-process micro machine tools DT 110 with compressed air as the dielectric fluid and tungsten as the wire electrode. The dimensional accuracy was determined through kerf width differences of the machined slots. The kerf width was measured using scanning electron microscope. Full factorial was used to design the experiment while analysis of variance (ANOVA) was used to analyse the results as well as to evaluate the adequacy of the developed model. Based on ANOVA, both parameters; gap voltage and wire tension have high influence on kerf width differences. The optimum machining parameters for minimum kerf width differences were found to be 85 V gap voltage and 10 % wire tension. The developed model is adequate since the percentage error (2.13 %) is relatively small. It is recommended that different type of gases should be used for further investigation in order to determine the accuracy of the dry micro wire EDM.

Item Type:	Article (Journal)
Additional Information:	4751/64022
Uncontrolled Keywords:	Dry wire EDM, Dry micro wire EDM, Dimensional accuracy, Kerf
Subjects:	T Technology > T Technology (General) T Technology > TJ Mechanical engineering and machinery T Technology > TN Mining engineering. Metallurgy 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 Kulliyyah of Engineering
Depositing User:	Prof. Ir. Dr. Mohammad Yeakub Ali
Date Deposited:	06 Jun 2018 14:58
Last Modified:	24 Jan 2019 10:41
URI:	http://irep.iium.edu.my/id/eprint/64022

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