Characterizing the Effects of Micro Electrical Discharge Machining Parameters on Material Removal Rate during Micro EDM Drilling of Tungsten Carbide (WC-Co)

Micro-dies, molds and miniaturized products can be manufactured using micro EDM process. In this research, EDM machine and on-machine fabricated CuW micro-electrode were utilized to produce the micro holes in WC-16%Co. The effects of voltage, current, pulse ON time, pulse OFF time, capacitor and rot...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 241; no. 1; pp. 12005 - 12009
Main Authors Hourmand, Mehdi, Sarhan, Ahmed A. D., Sayuti, Mohd
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.10.2017
Subjects
Capacitors
Drilling
EDM electrodes
Electric discharge machining
Electric potential
Fractional factorial design
Machine shops
Material removal rate (machining)
Microelectrodes
Microholes
Process parameters
Rotation
Tungsten carbide
Voltage
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Summary:Micro-dies, molds and miniaturized products can be manufactured using micro EDM process. In this research, EDM machine and on-machine fabricated CuW micro-electrode were utilized to produce the micro holes in WC-16%Co. The effects of voltage, current, pulse ON time, pulse OFF time, capacitor and rotating speed on Material removal rate (MRR) during micro EDM drilling of WC-16% Co was analyzed using fractional factorial design method. ANOVA analysis shows that increasing current, rotating speed, capacitor and decreasing voltage and pulse ON time lead to the amplify in MRR. It was found that out of all the factors, current and capacitor had the most significant effect on MRR, while the effect of capacitor was more than current. Eventually, it can be concluded that micro holes can be produced using EDM machine.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/241/1/012005