Machining of nickel-based super alloy inconel 718 using alumina nanofluid in powder mixed electric discharge machining

Abstract Inconel 718 is a nickel-based superalloy with exceptional mechanical qualities, including high tensile and impact strength, as well good oxidation corrosion resistance. EDM widely used to cut hard materials of this type by common parameters affecting spark, current, duty cycle etc, whereas MRR, SR can be greatly improved using sufficient fluid properties the dielectric. Incorporation alumina nanoparticles deionized water may improve machining performance, no prior research on characteristics nanofluid in EDM. The machinability via electrical discharge process, performance dielectric medium, have been evaluated concentration 0.5%. In study, based effect various input such I p , ${P}_{on}$?> P o n ${G}_{v}$?> G v TWR SR, RSM has conduct experiments. A maximum MRR 0.048 g min −1 , 0.00632 an 3.271 μ m are achieved. Overall, use EDM, due reduction abnormalities crack formation molten metal debris machined surface 718.