Abstract
High carbon steel (HCS) has many applications in almost all fields such as in manufacturing of many tools e.g. drill bits, knives, saw blades, cutting tools, punches, dies, etc. The present study throws light on investigating the surface roughness (SR) of HCS (AISI 1065) as work piece by Wire electrical discharge machining (WEDM) process. The machining input parameters selected were Pulse-on time (T ON ), Pulse-off time (T OFF ), servo sensitivity (SS) and Peak current (I P ). Taguchi’s Analysis of mean (ANOM) was performed to obtain the optimal parametric setting, which was followed by Analysis of Variance (ANOVA) to notice the importance of the machining parameters on the surface texture of the machined face. The optimal parametric setting for achieving least SR is found to be T ON of 2 μs, T OFF of 5 μs, SS of 8 mm/min and I P of 4 Amp. The present analysis revealed that the most important parameter affecting the SR was Pulse-on-time, which was followed by Peak current. It was found that with the rise in T OFF , surface texture of HCS decreased.
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