The influence of working parameters and size effect on surface roughness during EDM process

Tzu Yao Tai, Hwa-Teng Lee, Fu Chuan Hsu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This paper presents an investigation into the influence of working parameters and size effect of electrode upon SKD61, SKD11 and 304L. Surface topography, surface roughness are discussed to evaluate the quality of EDMed surface. When working parameters are taken into consideration, surface roughness will be deteriorated as pulse current and pulse-on duration increased. An equation can be further regressed as Ra=0.5∗Ip0.45∗τON0.2. When working parameters are fixed, surface roughness remained almost the same as machined with variable working materials. In aspect of size effect, the observation of the surface topography shows that the size effect does not affect the shape of crater. At the same time, surface roughness is not variable with the capacity induced by size effect. The result reveals that pulse current and pulse-on duration should be lowered in order to get a better surface integrity. Meanwhile, when the equivalent current is smaller than the pulse current, the capacity induced by size effect can be omitted.

Original languageEnglish
Title of host publicationProceedings of the 15th International Symposium on Electromachining, ISEM 2007
PublisherIndustrial and Management Systems Engineering
Pages93-97
Number of pages5
ISBN (Electronic)0979497701, 9780979497704
Publication statusPublished - 2007
Event15th International Symposium on Electromachining, ISEM 2007 - Pittsburgh, United States
Duration: 2007 Apr 232007 Apr 27

Other

Other15th International Symposium on Electromachining, ISEM 2007
CountryUnited States
CityPittsburgh
Period07-04-2307-04-27

All Science Journal Classification (ASJC) codes

  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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