Surface modification using Electric Discharge Machining (EDM) with powder addition

Khan, Ahsan Ali and Mohammed , Baba Ndaliman and Mohd Zain, Zakaria and Jamaludin, Mohammad F. and Patthi, Umar (2011) Surface modification using Electric Discharge Machining (EDM) with powder addition. Applied Mechanics and Materials, 110/6. pp. 725-733. ISSN 1660-9336 (O), 978-303785262-0 (P)

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Abstract

Powder mixed electrical discharge machining (PMEDM) is one of the recent innovations for the enhancement of the capabilities of EDM process. In this study, the effects of powder addition on the surface modification of mild steel were investigated. Copper tungsten electrode was used in the machining. Two different powders namely TiC and Al2O3 were used in the study with kerosene as the dielectric medium. The powder types and currents were manipulated to study their effects on the machined surface. The results show that increasing the current leads to increase in recast layer thickness, and the cracks. The Al2O3 powder gave higher layer thickness than TiC powder. TiC Powder addition also produced higher hardness, more tool material and carbon depositions on the work surface than Al2O3 powder.

Item Type:	Article (Journal)
Additional Information:	3129/7043
Uncontrolled Keywords:	Surface Modification; EDM; PMEDM; Recast Layer; Surface Topography; Surface Hardness
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 > Department of Manufacturing and Materials Engineering
Depositing User:	Prof. Dr. Ahsan Ali Khan
Date Deposited:	30 Nov 2011 11:44
Last Modified:	30 Nov 2011 11:44
URI:	http://irep.iium.edu.my/id/eprint/7043

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