Pengaruh Jenis Material Elektroda terhadap MRR dan EWR dalam Pembuatan Implan Rahang Menggunakan Die-Sinking EDM

Abstrak

Problems in jaw implant development using the EDM die-sinking process are the relatively long processing time and relatively fast electrode wear. Therefore, research is needed to speed up the EDM process time and slow down electrode wear. The purpose of this study is to determine the effect of material type on the Material Removal Rate (MRR) and Electrode Wear Rate in jaw implant manufacturing and to determine the best type of electrode material for jaw implant manufacturing using pure titanium material. The EDM die-sinking process was carried out in 4 experiments with variations in the parameters of 6A pulse current and 22 μs pulse on time, as well as electrode materials (copper, brass, tungsten, and HSS). The results showed that straight-plate jaw implants can be fabricated using tungsten carbide and copper electrode materials. The MRR increased with increasing thermal conductivity of the electrode material. The EWR increased with decreasing thermal conductivity of the electrode material. The best electrode material for jaw implant fabrication using die-sinking EDM was copper. The time required to fabricate a jaw implant was approximately 7.45 hours.

Kata kunci

• Die-sinking EDM
• Electrode
• Jaw Implant