 Effect of process parameters on material removal rate and surface roughness in electric discharge drilling of Inconel 718 using graphite electrodeP. Kuppan, S. Narayanan and A. Rajadurai International Journal of Manufacturing Technology and Management, 2011, vol. 23, issue 3/4, 214-233 Abstract: This paper presents the effect of electric discharge drilling process parameters viz., peak current, pulse on-time, duty factor and electrode speed on material removal rate (MRR) and depth averaged surface roughness (DASR). The experiments were carried out on Inconel 718 super-alloy work material using graphite electrode. The experiments were designed according to central composite design procedure. To analyse the effect of process parameters on output responses, polynomial empirical models were developed using the response surface methodology. The experimental results revealed that MRR is strongly influenced by the factors peak current, pulse on-time and electrode rotation. The DASR is more influenced by peak current and pulse on-time. Keywords: electrical discharge drilling; EDD; Inconel 718; graphite electrodes; central composite design; CCD; response surface methodology; RSM; electrical discharge machining; electro-discharge machining; EDM; material removal rate; MRR; surface roughness. (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:ids:ijmtma:v:23:y:2011:i:3/4:p:214-233 Access Statistics for this article More articles in International Journal of Manufacturing Technology and Management from Inderscience Enterprises Ltd |
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