Fundamental study on a cavitation aided machining

Kazuhito Ohashi, Rongjun Wang, Shinya Tsukamoto, Toshikatsu Nakajima

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

1 Citation (Scopus)

Abstract

The purpose of this study is to make clear the machining effect of a new technique of cavitation aided machining (CAM) by which the workpiece can be easily finished in a fine surface with a very simple apparatus. The machining fluid, that is mixture of abrasive grains and water as carrier, is sucked by a pump, and the flow of machining fluid is controlled by a restrictor. Then the cavitation phenomenon locally occurs by the rapid decrease of carrier pressure, so that abrasive grains in the mixed fluid come to interfere on the surface. In this report, the possibility of applying CAM to precision machining is investigated by analyzing the surface finish, the stock removal and the behavior of carrier. Main conclusions obtained in this paper are as follows: (1) Action of abrasive grains onto the surface is induced by very fine cavitation impact caused by cavitation occurred in the lower part from the center of restrictor in a flow. (2) At 2.0mm in clearance, the cavitation impact of carrier becomes strongest, so that the stock removal and the decrease of surface roughness have maximum. (3) CAM can be applied to an ultraprecision machining by which the surface finish of Al-Mg alloy is improved from 7.3nm Ra with ultraprecision cutting down to the surface finish at 6.6nm Ra.

Original languageEnglish
Title of host publicationICPMT2006 - Progress of Machining Technology - Proceedings of the 8th International Conference on Progress of Machining Technology
Pages405-408
Number of pages4
Publication statusPublished - Dec 1 2006
Event8th International Conference on Progress of Machining Technology, ICPMT2006 - Matsue, Japan
Duration: Nov 9 2006Nov 11 2006

Publication series

NameICPMT2006 - Progress of Machining Technology - Proceedings of the 8th International Conference on Progress of Machining Technology

Other

Other8th International Conference on Progress of Machining Technology, ICPMT2006
CountryJapan
CityMatsue
Period11/9/0611/11/06

Keywords

  • Cavitation
  • Cavitation aided machining
  • Cavitation impact
  • Restrictor
  • Stock removal
  • Surface finish
  • Ultraprecision machining

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Mechanical Engineering
  • Materials Science(all)

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  • Cite this

    Ohashi, K., Wang, R., Tsukamoto, S., & Nakajima, T. (2006). Fundamental study on a cavitation aided machining. In ICPMT2006 - Progress of Machining Technology - Proceedings of the 8th International Conference on Progress of Machining Technology (pp. 405-408). (ICPMT2006 - Progress of Machining Technology - Proceedings of the 8th International Conference on Progress of Machining Technology).