Surface improvement using a combination of electrical discharge machining with ball burnish machining based on the taguchi method

Y. C. Lin, B. H. Yan, F. Y. Huang

Research output: Contribution to journalArticlepeer-review

74 Scopus citations

Abstract

This study investigates the feasibility of improving surface integrity via a novel combined process of electrical discharge machining (EDM) with ball burnish machining (BBM) using the Taguchi method. To provide burnishing immediately after the EDM process, ZrO2 balls were attached to the tool electrode in the experiments. To verify the optimal process, three observed values, i.e. material removal rate, surface roughness, and improvement ratio of surface roughness were chosen. In addition, six independent parameters were adopted for evaluation by the Taguchi method. From the ANOVA and S/N ratio response graph, the significant parameters and the optimal combination level of machining parameters were obtained. Experimental results indicate that the combined process effectively improves the surface roughness and eliminates the micro pores and cracks caused by EDM. Therefore, the combination of EDM and BBM is a feasible process by which to obtain a fine-finishing surface and achieve surface modification.

Original languageEnglish
Pages (from-to)673-682
Number of pages10
JournalInternational Journal of Advanced Manufacturing Technology
Volume18
Issue number9
DOIs
StatePublished - 2001

Keywords

  • Ball burnish machining
  • Combined process
  • Electric discharge machining
  • Surface roughness
  • Taguchi method

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