Catalytic aided electrical discharge machining of polycrystalline diamond - Parameter analysis of finishing condition

Ahmad, M, Rahim, M, Fauzi, M, Abdullah, A, Omar, Z, Ding, S, Ismail, A and Ibrahim, M 2018, 'Catalytic aided electrical discharge machining of polycrystalline diamond - Parameter analysis of finishing condition', IOP Conference Series: Materials Science and Engineering, vol. 295, no. 1, pp. 1-9.


Document type: Journal Article
Collection: Journal Articles

Title Catalytic aided electrical discharge machining of polycrystalline diamond - Parameter analysis of finishing condition
Author(s) Ahmad, M
Rahim, M
Fauzi, M
Abdullah, A
Omar, Z
Ding, S
Ismail, A
Ibrahim, M
Year 2018
Journal name IOP Conference Series: Materials Science and Engineering
Volume number 295
Issue number 1
Start page 1
End page 9
Total pages 9
Publisher Institute of Physics Publishing
Abstract Polycrystalline diamond (PCD) is regarded as among the hardest material in the world. Electrical Discharge Machining (EDM) typically used to machine this material because of its non-contact process nature. This investigation was purposely done to compare the EDM performances of PCD when using normal electrode of copper (Cu) and newly proposed graphitization catalyst electrode of copper nickel (CuNi). Two level full factorial design of experiment with 4 center points technique was used to study the influence of main and interaction effects of the machining parameter namely; pulse-on, pulse-off, sparking current, and electrode materials (categorical factor). The paper shows interesting discovery in which the newly proposed electrode presented positive impact to the machining performance. With the same machining parameters of finishing, CuNi delivered more than 100% better in Ra and MRR than ordinary Cu electrode.
Subject Manufacturing Processes and Technologies (excl. Textiles)
Machining
Keyword(s) EDM
Erosion
Graphitization
PCD
DOI - identifier 10.1088/1757-899X/295/1/012042
Copyright notice © Published under licence by IOP Publishing Ltd.
ISSN 1757-8981
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