Study and Optimization Defect Layer in Powder Mixed Electrical Discharge Machining of Titanium Alloy

Electrical discharge machining (EDM) has recently become very popular for processing titanium alloys, but surface quality is a major problem. During machining, defect layer inevitably forms on the surface, which can have negative impact quality. One of ways to reduce add powder dielectric. However, it not yet completely clear and in what quantity should be added layer. In this sense, present study aims investigate effects parameters powder-mixed electrical alloys. The main goal achieve minimum thickness by optimally adjusting input parameters. Experimental studies were performed using Taguchi orthogonal array L9, considering current, pulse duration, duty cycle, graphite concentration as Based ANOVA analyses, current was found greatest effect addition, analysis variance revealed that duration second influential parameter, followed cycle. obtained at 1.5 A, 30 µs, cycle 50%, 12 g/L. results provided answers some unresolved research questions confirmed findings proposed method applied industry.