Some anomalies in the experimental results of EDM
by K. Buschaiah; P. Laxminarayana; V.S.R. Murti
International Journal of Manufacturing Technology and Management (IJMTM), Vol. 24, No. 1/2/3/4, 2011

Abstract: In electro discharge machining (EDM) the metal removal occurs from the erosive effects of high frequency sparks. Consequently the erosion rate depends on spark energy, sparking frequency and the factors affecting them. However, the experimental results are highly random and sometimes unexpected. Material erosion rate and surface roughness were analysed for the effect of important factors like pulse parameters (voltage, current, on time and off time), polarity and work material. Taguchi method of experiment planning with orthogonal arrays was adopted to analyse the anomalies observed in the experimental results.

Online publication date: Thu, 27-Nov-2014

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