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Electrical discharge machining of polycrystalline diamond using copper electrode – finishing condition

Haikal Ahmad, M. A. and Rahim, M. Zulafif and Mohd Fauzi, M. F. and Azis, N. Hafizah and Ismail, A. E. and Hassan, Mohd Fahrul and Arifin, A. M. T. and Yusof, M. S. and Ibrahim, M. Rasidi (2017) Electrical discharge machining of polycrystalline diamond using copper electrode – finishing condition. IOP Conference Series: Materials Science and Engineering, 203 (012019). pp. 1-6. ISSN 1757899X


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Research on machining process of Polycrystalline Diamond (PCD) is becoming important as the material was believed suitable to be used for cutting tools of advanced aeronautical structure. Electrical Discharge Machining (EDM) was regarded as the suitable method to machine PCD due its noncontact process nature. The objective of this research is to determine the influence of several EDM parameter such as sparking current, pulse duration, and pulse interval to the material removal rate and surface roughness of the machined PCD. Instead of significantly influenced the material removal rate, the sparking current was also highly influenced tha surface roughness. Highest material removal rate of approximately 0.005mm3/s was recorded by the EDM process with the highest current used of 5A, and lowest pulse interval of 1μs. The influence of pulse duration is not clearly seen at the lowest pulse interval used. On the other hand, 0.4μm was the lowest surface roughness value obtained in this research indicated by the highest sparking current, highest sparking duration and lowest sparking interval of 5A, 1μs and 1μs respectively.

Item Type: Article
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ1125-1345 Machine shops and machine shop practice
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Aeronautical Engineering
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 29 Aug 2018 01:14
Last Modified: 29 Aug 2018 01:14
URI: http://eprints.uthm.edu.my/id/eprint/10333
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