Abstract
Abstract In the pursuit of the establishment of the fact that the traditional machining techniques are shying away to meet the challenges posed by the demand for precise and economic machining of ultra-hard and high strength materials to close tolerances which in turn has resulted in the development of several unconventional machining systems. Of all such newer machining methods, EDM (Electrical Discharge Machining) is one of the most versatile and universally acceptable techniques being used extensively for electrically conductive materials. The present work investigates the management and quantification of Surface Roughness and MRR of Inconel 800HT when machined with copper electrode on EDM. The surface roughness of the alloy was measured by using Talysurf and Material removal rate is figured out as the extent of the change of weight of the work piece prior and afterward machining. The current, flushing pressure and pulse-on-time were taken as process parameters. Later anova analysis was carried out to analyze the effect of these variables. It was found that current and Pulse-on-time were the most influencing factors which affect the surface roughness most while in case of MRR the most influential factor is current.
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