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dc.contributor.authorBajaj, Rajesh-
dc.contributor.authorDixit, Amit Rai-
dc.contributor.authorTiwari, Arun Kumar-
dc.contributor.authorChauhan, Nitin Kumar-
dc.identifier.issn0975-1017 (Online); 0971-4588 (Print)-
dc.description.abstractThe present study investigates the influence of adding multi-wall carbon nanotube (MWCNT) into the dielectric fluid of  electric discharge machining (EDM) in terms of material removal rate (MRR), surface roughness (SR) and surface topology of EN-31 die steel using Cu electrode. A customized rotary electrode set-up has been developed to compare the performance improvement of powder mixed rotary electrical discharge machining (PMREDM) as compared to powder mixed electrical discharge machining (PMEDM) and conventional EDM. The present study attempts to investigate the optimization of process parameters of MWCNT mixed rotary EDM of EN-31 die steel using response surface methodology (RSM) and genetic algorithm (GA) in terms of MRR and SR. The optimization results show that MWCNT mixed rotary EDM shows highest value of MRR (9.72 mm3/min) and lowest value of SR (Ra = 2.03 µm), which are approximately 46.17% higher and 45.43% lower than conventional EDM values respectively. Further, various combinations of optimal values of MRR and SR and their corresponding input parameters setting have been shown in pareto table created by multi-objective optimization GA technique available in MATLAB. Finally, field emission scanning electron microscope (FESEM) analysis of MWCNT mixed rotary EDM and EDM surfaces is carried out which revealsthat MWCNT mixed rotary EDM shows better surface topography as compared to EDM process.en_US
dc.publisherNISCAIR-CSIR, Indiaen_US
dc.rights CC Attribution-Noncommercial-No Derivative Works 2.5 Indiaen_US
dc.sourceIJEMS Vol.27(2) [April 2020]en_US
dc.subjectMaterial removal rateen_US
dc.subjectSurface roughnessen_US
dc.subjectGenetic algorithmen_US
dc.subjectPowder mixed electric discharge machiningen_US
dc.subjectMicro cracksen_US
dc.subjectResponse surface methodologyen_US
dc.titleMachining performance enhancement of EN-31 diesteel using MWCNT mixed rotary EDMen_US
Appears in Collections:IJEMS Vol.27(2) [April 2020]

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