Finite element modelling of shear angle and cutting force variation induced by material anisotropy in ultra-precision diamond turning

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

Research output: Journal article publicationJournal articleAcademic researchpeer-review

23 Citations (Scopus)

Abstract

This paper addresses a key theoretical problem in the mechanics of ultra-precision machining - shear angle prediction and cutting force variation induced by crystallographic anisotropy. The constitutive equation of crystal plasticity is implemented in the finite element modelling of the chip formation at micro-scale to take into account the effect of crystallographic orientations of the work piece to be cut. The theoretical prediction of shear angle and cutting force variation reveals two distinguished phases of pre-compression and steady-state cutting in ultra-precision diamond turning. The predicted patterns of cutting force variation are in good agreement with published experimental results.
Original languageEnglish
Pages (from-to)82-86
Number of pages5
JournalInternational Journal of Machine Tools and Manufacture
Volume75
DOIs
Publication statusPublished - 21 Oct 2013

Keywords

  • Crystal plasticity
  • Cutting force variation
  • Finite element modeling
  • Shear angle
  • Ultra-precision machining

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Mechanical Engineering

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