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IJAT Vol.13 No.1 pp. 6-12
doi: 10.20965/ijat.2019.p0006
(2019)

Paper:

Frictional Stress Derived on Interface Between Work and Tool Materials on Quasi-Dislocation Model for Cutting Simulations

Tohru Ihara, Xiaoqi Song, and Yukio Takahashi

Department of Precision Mechanics, Faculty of Science and Engineering, Chuo University
1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan

Corresponding author

Received:
May 17, 2018
Accepted:
October 9, 2018
Published:
January 5, 2019
Keywords:
cutting simulation, quasi-dislocation model, interface between work and tool materials, friction phenomena, high strain velocity
Abstract

There growing demand for a new FEM cutting simulation method capable of dealing with the peculiar friction phenomena that occur on the interface between work and tool materials. In this report, we first seek a theoretical formula for quasi-dislocation motions as a model to explain the phenomena that occur on the interface between the work and tool materials by applying the dislocation theory. Next, we present our method for deriving the frictional stress on a tool face from quantum mechanical calculations based on the above-mentioned model. It uses the molecular orbital method, which can only conduct static calculations, to obtain the shear stress under high strain velocities. As one of its features, it does not use complicated experiments and the first-principle molecular dynamic calculations that is high costs.

Cite this article as:
T. Ihara, X. Song, and Y. Takahashi, “Frictional Stress Derived on Interface Between Work and Tool Materials on Quasi-Dislocation Model for Cutting Simulations,” Int. J. Automation Technol., Vol.13, No.1, pp. 6-12, 2019.
Data files:
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Last updated on Aug. 08, 2019