Publisher： Taylor & Francis Ltd
ISSN： 1091-0344
Source： Machining Science and Technology, Vol.13, Iss.2, 2009-04, pp. : 210-226
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Abstract
In this paper, the tool-chip interaction is described by two models; a heat transfer model considering the thermal constriction phenomenon, and a friction model with variable friction coefficients. To integrate the two models into a finite element modeling (FEM) package, both the heat transfer and the friction coefficients are related to the normal stress on the rake face of the tool. The effects of the thermal constriction and the friction phenomena on the machining forces, the chip thickness, the temperature of the tool, and the residual stresses are investigated using FEM simulations. The results show that the proposed heat transfer model and friction model can properly describe the tool-chip interaction to improve the simulation accuracy.
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