Modeling and simulation of surface topography evolution in electrical discharge machining (EDM)

Tian Feng Zhou*, Li Zheng Ma, Zhi Qiang Liang, Xi Bin Wang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper aims to quantify the effects of the machining condition on the surface topography in electrical discharge machining (EDM), including pulse current, pulse duration and so on. Firstly, the heat source of a single electrical pulse is defined by Gauss distribution, and the thermal effects of machining parameters on the workpiece material erosion are simulated by Finite Element Method (FEM) package ANSYS. Then, the crater size of a single pulse is numerically simulated based on the thermal model of a single pulse discharge. Furthermore, the superposition of multiply craters created by continuous pulse discharges in a random distribution is calculated by MATLAB software program, so that the evolution of the surface topography can be obtained with the combination of FEM simulation and topology calculation. In this way, the surface roughness is quantitatively calculated from the specified EDM parameters.

Original languageEnglish
Title of host publicationAdvances in Abrasive Technology XVII
EditorsJiwang Yan, Hideki Aoyama, Akinori Yui
PublisherTrans Tech Publications Ltd.
Pages764-769
Number of pages6
ISBN (Electronic)9783038352211
DOIs
Publication statusPublished - 2014
Event17th International Symposium on Advances in Abrasive Technology, ISAAT 2014 - Kailua, United States
Duration: 22 Sept 201425 Sept 2014

Publication series

NameAdvanced Materials Research
Volume1017
ISSN (Print)1022-6680
ISSN (Electronic)1662-8985

Conference

Conference17th International Symposium on Advances in Abrasive Technology, ISAAT 2014
Country/TerritoryUnited States
CityKailua
Period22/09/1425/09/14

Keywords

  • Electrical discharge machining
  • Material removal model
  • Micro crater
  • Surface roughness
  • Surface topography

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