Statistical Modelling of Properties of Discharge Pulses in Electric Discharge Machining

Abstract

In this study, the random behavior of time-lag durations of discharge pulses are investigated for different machining conditions in Electric Discharge Machining(EDM). Gamma model is shown to be a suitable statistical model to represent the statistical characteristics of experimental time-lag distributions. For different machining conditions, variations in shape and scale factors of the two-variable gamma model are calculated and compared with the best fits found by trial and error.