Micro-pits on biomaterial in electrical discharge machining by using Taguchi Method

Electrical Discharge Machine widely used in the manufacturing industry, especially to generates small part or complicated product. This research has been conducted to determine capabilities of Electrical Discharge Machine Die Sinker (EDMDS) machining micropit on the biomaterials between stainless steel and Titanium. The significance of this study is to recognize EDM DS demanding for improvement or to enhance medical products. In this study Taguchi method is guide a series of experiments, and use to identify EDM DS parameter capabilities to machine pit depth 0.3mm on the titanium and stainless steel at current parameters, LT (1A and 3A). Meanwhile the Vgap were set at 55V and 65V. Based on Taguchi method statistically evaluated the experimental data and the regression of parameter. This paper showed the percentage of wear Electrode copper tungsten, percentage of depth machining pit and time spending during machine a pit. The pit model in biomaterials showed that exploring micro pit as new areas of improvement on the surface of biomaterials products. Key-Words: EDM DS, Biomaterial, Taguchi method, copper tungsten Electrode, Micro pit