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Title: A numerical method for predicting depth of heat affected zone in EDM process for AISI H13 tool steel
Authors: Shabgard, M R
Seyedzavvar, M
Oliaei, S Nadimi Bavil
Ivanov, A
Keywords: Electrical discharge machining (EDM);Finite Element Model (FEM);Heat affected zone
Issue Date: Jul-2011
Publisher: NISCAIR-CSIR, India
Abstract: This study presents a finite element model (FEM) to model temperature distribution for AISI H13 tool steel workpiece in electrical discharge machining (EDM) at different machining parameters (pulse current, pulse on-time, temperature-sensitive material properties, size of heat source, and material flushing efficiency). Scanning electron microscopy (SEM) with energy dispersive x-ray (EDX) and micro-hardness tests were used to validate accuracy of FEM predictions. Increasing pulse on-time leads to a higher depth of heat affected zone and increasing pulse current results in a slight decrease of depth of heat affected zone. There is a good agreement between experimental and numerical results.
Page(s): 493-499
ISSN: 0975-1084 (Online); 0022-4456 (Print)
Appears in Collections:JSIR Vol.70(07) [July 2011]

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