Investigation of hydrodynamic arc breaking mechanism in blasting erosion arc machining

Lin Gu, Fawang Zhang, Wansheng Zhao, K. P. Rajurkar, A. P. Malshe

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


Blasting erosion arc machining (BEAM) greatly improves the material removal rate (MRR) by utilizing the electrical arcs instead of sparks as in EDM. However, the mechanism in BEAM is still not fully understood. By observing and diagnosing the electrical arc generated in a single pulse, the arc temperature is determined and hydrodynamic arc breaking mechanism that can effectively prevent the arcing damage is observed. Furthermore, this paper compares the craters obtained in negative polarity BEAM with that in positive polarity BEAM and explains why the former results in a higher MRR and the latter leads to a better machined surface.

Original languageEnglish (US)
Pages (from-to)233-236
Number of pages4
JournalCIRP Annals - Manufacturing Technology
Issue number1
StatePublished - 2016


  • Arc temperature
  • Blasting erosion arc machining (BEAM)
  • Hydrodynamic arc breaking mechanism (HABM)
  • Observation research
  • Single discharge experiments
  • Spectroscopy

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering


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