Improving machining performance using alumina powder-added dielectric during electrical discharge machining (EDM)

Khan, Ahsan Ali and Abu Bakar, Marina and Al Hazza, Muataz Hazza Faizi and Che Daud, Mohd Radzi and Mohiuddin, A. K. M. (2017) Improving machining performance using alumina powder-added dielectric during electrical discharge machining (EDM). In: 3rd International Conference on Mechanical, Automotive and Aerospace Engineering 2016 (ICMAAE’16), 25th-27th July 2016, Kuala Lumpur, Malaysia.

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Abstract

Alumina powder was added to dielectric fluid during Electrical discharge machining (EDM) of AISI 304 steel. The main machining parameters of current (A), tool diameter (mm) and powder concentration (g/L) were chosen to determine the EDM machining characteristics of material removal rate (MRR), tool wear rate (TWR) and surface roughness (Ra). This work adopted two-level full factorial experiments. The significant factors that affect the MRR and tool TWR are current, tool diameter and powder concentration. The MRR increases when the current and tool diameter are higher. The presence of powder concentration also increases the MRR. The higher current used and the presence of powder concentration increase the TWR. Meanwhile, a smaller tool diameter gives higher value of TWR. Current and powder concentration are the significant factors to determine the surface roughness of work surfaces. Higher current applied gives high surface roughness, but higher powder concentration gives improved surface finish.

Item Type:	Conference or Workshop Item (Plenary Papers)
Additional Information:	3129/56319
Uncontrolled Keywords:	Aerospace engineering, Alumina, Cutting tools, Electric discharge machining, Electric discharges, Wear of materials
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 Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User:	Prof. Dr. Ahsan Ali Khan
Date Deposited:	10 Apr 2017 13:41
Last Modified:	07 Jun 2017 11:23
URI:	http://irep.iium.edu.my/id/eprint/56319

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