Electrical Discharge Machining Of Al-Sillimanite Composites

In the present study, electrical discharge machining(EDM) studies are carried out on sillimanite reinforced Aluminium based composite. The composite is prepared through vacuum stir casting setup. EDM studies are carried out in the prepared specimen by considering input parameters such as current flow, pulse on time, pulse off time and voltage. After machining the cylindricity is measured using CMM and the influence of the input parameters on cylindricity and material removal rate(MRR) is determined. The result shows that the addition of sillimanite drastically reduces the machinability of the composite under all operating conditions. Cylindricity of the material increased with the rise in current flow. (C) 2019 Elsevier Ltd. All rights reserved.