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2020 | OriginalPaper | Chapter

39. Numerical Modelling and Simulation of Single and Multi-spark Impacts in Electrical Discharge Machining

Authors : Jibin T. Philip, Basil Kuriachen, Jose Mathew

Published in: Advances in Simulation, Product Design and Development

Publisher: Springer Singapore

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Abstract

In this paper, the 2D surface model of single and multi-spark impacts on electrical discharge machining (EDM), with precise consideration of spark propagation, has been developed and simulated. Theoretical correlation between the input parameters, viz. discharge voltage (V): 30–110 V, discharge current (I): 5–75 A and spark on time (T_on): 10–200 µs, were preliminarily established, using the governing equations. The scope of the paper was to model the spark impact phenomenon, so as to determine the most influential factors which can be controlled to produce the required surface finish, for specific applications. Fine/finish machining is achievable at low discharge current, moderate discharge voltage and medium pulse on time, whereas coarse machining requires reverse conditions, preferably. Multi-spark analysis imparts insight into the possibilities in prediction and evaluation of material removal rate (MRR) and surface roughness (R_a) through further design considerations.

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Title: Numerical Modelling and Simulation of Single and Multi-spark Impacts in Electrical Discharge Machining
Authors: Jibin T. Philip
Basil Kuriachen
Jose Mathew
Publisher: Springer Singapore
Book: Advances in Simulation, Product Design and Development
Print ISBN: 978-981-329-486-8

Electronic ISBN: 978-981-329-487-5

Copyright Year: 2020
DOI: https://doi.org/10.1007/978-981-32-9487-5_39

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