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Analysis of displacement fields of particle shaping surface during nanoscale ductile mode cutting of brittle materials

Abstract

This paper is dedicated to the nanoscale machining simulation with the help of SPH method. The main goal of the research is to investigate the ductile mode machining of the brittle materials. The special scalar plasticity measure is introduced as a generic parameter of surface quality after machining. This measure can be used to describe the surface quality due to different machining modes and to analyze influence of fillet radius or cutting depth on the surface quality. As the SPH method deals with discrete particles, there is a problem of correct identification of those particles, which form the surface after machining. The special algorithm is proposed to solve this problem. Finally, the influence of the cutter fillet radius on the obtained plasticity measure is determined to be linear in considered range.

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Acknowledgements

The research was partially supported via the Agreement No 14.579.21.0042 25.08.2014 (id. RFMEF1579X0042) between OAO “VNIIINSRUMENT” and the Ministry of Education and Science of the Russian Federation on the subject “development of equipment and technology for nano-dimensional machining of optical materials under quasi-plastic cutting”.

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Correspondence to S. Yuan.

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Gouskov, A., Nikolaev, S., Kuts, V. et al. Analysis of displacement fields of particle shaping surface during nanoscale ductile mode cutting of brittle materials. Int J Adv Manuf Technol 95, 1911–1918 (2018). https://doi.org/10.1007/s00170-017-1233-x

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  • DOI: https://doi.org/10.1007/s00170-017-1233-x

Keywords

  • Machining
  • Nanoscale cutting
  • Ductile mode
  • Smooth particle hydrodynamics
  • Numerical simulation
  • Particle displacement