A New Approach for Friction Modeling at the Tool-Chip Interface in Orthogonal Cutting
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.
Fan Rui, Qiao Lihong, Chen Huawei, Ochi Akio, Usuki Hiroshi and Sekiya Katsuhiko
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