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The deformation yield criterion of metallic glass in the cutting process and its experimental verification

Lookup NU author(s): Dr Yan Zhao, Dr Dehong Huo

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Abstract

© 2017, Executive Office of the Journal. All right reserved. Taking the yield deformation of metallic glass in cutting as the research object, the Mohr-Coulomb (M-C) yield criterion originating from the geotechnical field was adopted to solve the problem that the traditional Tresca criterion and the Mises criterion do not reflect the stress sensitivity of metallic glass. In addition, in view of the temperature sensitivity of metallic glass and high cutting temperature in the cutting process, the M-C yield criterion with temperature correction was applied to the cutting model of metallic glass. The orthogonal experiment on cutting force shows that, in the three cutting force models established respectively based on the traditional yield criterion, the M-C yield criterion without the temperature item, and the M-C yield criterion with temperature correction, the last one's error was smallest (average error of 8.92%). It shows that the M-C yield criterion with temperature correction can be used to describe the deformation process in cutting metallic glasses. The conclusion provides the theoretical foundation for further research on the cutting mechanism of metallic glasses.

Publication metadata

Author(s): Zhang Y, Wang Y, Zhao Y, Wang J, Lu J, Huo D

Publication type: Article

Publication status: Published

Journal: Gaojishu Tongxin/Chinese High Technology Letters

Year: 2017

Volume: 27

Issue: 3

Pages: 285-293

Print publication date: 01/03/2017

Acceptance date: 02/04/2016

ISSN (print): 1002-0470

Publisher: Institute of Scientific and Technical Information of China

URL: https://doi.org/10.3772/j.issn.1002-0470.2017.03.012

DOI: 10.3772/j.issn.1002-0470.2017.03.012

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