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Optimal Set-up and Surface Finish Characteristics in Electrical Discharge Machining on Ti-5al-2.5sn using Graphite

Khan, Md. Ashikur Rahman and M. M., Rahman and Salehina, Zayed Us and Rahman, Md. Saifur (2016) Optimal Set-up and Surface Finish Characteristics in Electrical Discharge Machining on Ti-5al-2.5sn using Graphite. Perspectives in Science, 8. pp. 440-443. ISSN 2213-0209

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Abstract

In electrical discharge machining (EDM) process which is an advance and non-conventional technique, the selection of machining parameters for achieving high machining performance is an important; however, very problematic task. In the current manuscript it was aimed to ascertain optimal machining set-up of EDM process related with fine surface finish. The die-sinking EDM was carried out using the both polarities (positive and negative) of graphite electrode. The microstructure of the workpiece surface was investigated by scanning electronic microscopy. The negative polarity produces, on average, nearly double surface roughness than that with positive polarity. The surface microstructure is deteriorated as the discharge energy level increases for both polarities.

Item Type: Article
Uncontrolled Keywords: Roughness; Optimal set-up; Surface topography; Graphite; Polarity
Subjects: T Technology > TJ Mechanical engineering and machinery
Faculty/Division: Faculty of Mechanical Engineering
Depositing User: Mrs. Neng Sury Sulaiman
Date Deposited: 09 Nov 2016 01:13
Last Modified: 25 Jan 2018 02:52
URI: http://umpir.ump.edu.my/id/eprint/13334
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