Study of EDM Process Parameters of Surface Roughness in Titanium Using Taguchi Method

In this paper, an orthogonal array, the signal-to-noise (S/N) ratio, and analysis of variance ANOVA) are used to study the performance characteristics in machining operations of titanium material using copper electrode as machining tool. In machining, the process parameters (current, pulse on time, and pulse off time) are studied in favour of getting optimum surface roughness property. Through this study, not only can the optimal machining parameters for machining process be obtained, but also the main machining parameters that affect the machining performance in EDM process can be found. Experimental results have shown that the effectiveness of this approach.