Abstract
In the present research work, experimental and finite elemental analysis of powder mixed electric discharge machining of Ti-Nb-Ta-Zr alloy has been presented. The mechanism for the materials removal has been numerically simulated. A mathematical model for the surface roughness has been presented. The effect of process parameters such as peak current, pulse-on, pulse interval, and voltage on the temperature distribution in surface has been investigated. The crater geometry of PM-EDM and EDM formation has been compared. The results showed that PM-EDM produced small micro-size craters as compared with EDM. The PM-EDM produced better surface roughness. The predicted surface roughness for the 0.78 μm in the case of PM-EDM.
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