Dynamic modelling of shear band formation and tool-tip vibration in ultra-precision diamond turning

H. Wang, Suet To, C. Y. Chan, Chi Fai Cheung, Wing Bun Lee

Research output: Journal article publicationJournal articleAcademic researchpeer-review

31 Citations (Scopus)

Abstract

This paper proposes a dynamic model to correlate the two basic physical phenomena in ultra-precision diamond turning, i.e. the formation of adiabatic shear band (ASB) and high frequency tool-tip vibration (HFTTV). The conventional approach explains the former using a static model without consideration of the latter. In this paper, a dynamic model is developed to reflect how the ASB and the HFTTV interactively affect each other. To illustrate the validity of this model, a novel experimental method is proposed and the effect of HFTTV on cutting force, surface roughness and chip morphology of ASBs is discussed in terms of the variation of strain rates.
Original languageEnglish
Pages (from-to)512-519
Number of pages8
JournalInternational Journal of Machine Tools and Manufacture
Volume51
Issue number6
DOIs
Publication statusPublished - 1 Jun 2011

Keywords

  • Adiabatic shear band
  • Dynamic model
  • Tool-tip vibration
  • Ultra-precision diamond turning

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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