A New Approach for Friction Modeling at the Tool-Chip Interface in Orthogonal Cutting

Abstract:

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A better understanding of friction modeling is really important for producing more realistic finite element models of machining processes. This paper presents a methodology to determine the friction at the tool-chip interface. By matching the measured values of the cutting forces with the predicted results from finite element simulations (FEM), a revised friction model on the tool-chip interface is developed. Reasonable distribution of the stress, strain and strain-rate, as well as the temperature fields at the tool-chip interface could be achieved by using this approach. An attempt is made by FEM to obtain a full understanding of relationships between the complex physical behavior and friction at the tool-chip interface. It is found that the sticking-sliding separated area is located at the points with the greatest temperature. And the corresponding relationship between cutting parameters and sticking-sliding friction separated area is found.

Info:

Periodical:

Key Engineering Materials (Volumes 407-408)

Edited by:

Fan Rui, Qiao Lihong, Chen Huawei, Ochi Akio, Usuki Hiroshi and Sekiya Katsuhiko

Pages:

486-489

DOI:

10.4028/www.scientific.net/KEM.407-408.486

Citation:

J. C. Wang et al., "A New Approach for Friction Modeling at the Tool-Chip Interface in Orthogonal Cutting", Key Engineering Materials, Vols. 407-408, pp. 486-489, 2009

Online since:

February 2009

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Price:

$35.00

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