Effect of Pulse Current and Electrode Material in Producing of Microplate Implant by EDM Die-Sinking

Yani Kurniawan; Pratik Suko Pangarsono; Dede Lia Zariatin; Bambang Hari Priyambodo

doi:10.15866/ireme.v16i10.22835

Effect of Pulse Current and Electrode Material in Producing of Microplate Implant by EDM Die-Sinking

Yani Kurniawan^(1*), Pratik Suko Pangarsono⁽²⁾, Dede Lia Zariatin⁽³⁾, Bambang Hari Priyambodo⁽⁴⁾

^(*) Corresponding author

Authors' affiliations

DOI: https://doi.org/10.15866/ireme.v16i10.22835

Abstract

The main problem in microplate implant production is the high cost of production. It is because the production process uses two machining processes. Microplate production currently uses wire-EDM and micro-milling. Therefore, microplate production with die-sinking EDM has been developed to reduce production costs. This paper proves that microplate implant can be produced by die-sinking EDM. This research also examines the response of pulse currents and electrode materials on the Material Removal Rate (MRR), the surface roughness (Ra) and the White Layer (WL) in the microplate. EDM process uses pulse currents of 6, 9, and 13 A with copper and graphite electrodes. The results show that the microplate has been successfully produced by using die-sinking EDM in a pure titanium sheet with a thickness of 0.4 mm. MRR, Ra and WL are directly proportional to pulse current. The results are greater when using the graphite compared to the copper electrode. MRR, Ra, and WL are in the range of 0.22-0.99 mm3/minute, 5.28-11.13 μm, and 21.66-33.66 μm, respectively. The pulse current of 6A with the copper electrodes produces the microplate of the best quality.
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Keywords

Material Removal Rate; White Layer; Surface Roughness; Pulse Current; Electrode

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References

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