Abstract
The present experimental study attempts to develop functionally graded materials (FGMs) using aluminum alloy 7075 and magnesium alloy AZ91D using a gravity die-casting process. The said non-conventional FGM samples with lead (Pb) interfacing foils were made to estimate the machinability during the electric discharge machining (EDM) process. In particular, an attempt is made to determine the effects of input parameters such as peak current(Ip), gap voltage(Vg), and pulse on time (Ton) on the responses. These results confirmed that the responses, namely, material removal rate (MRR) and electrode wear rate (EWR), are observed as low for the FGM sample made with lead foil when compared with pure Al7075 and AZ91D.
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