A hybrid cutting force model for high-speed milling of titanium alloys
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Abstract
In this paper, the Johnson-Cook (JC) strength model is used to describe the flow stress of Ti6Al4V and to estimate two important parameters in Oxley's model: the strain-rate constant and the angle made by the resultant force and the shear plane. The JC model is also incorporated into a finite element method (FEM) simulation for the deformation process of Ti6AI4V. Finally, a hybrid cutting force model based on the FEM simulation and Oxley's theory is proposed to predict cutting forces when machining Ti6Al4V. Experimental results are found to substantiate the developed model.
Keywords
Cutting force model, Finite element method, Flow stress
Source Title
CIRP Annals - Manufacturing Technology
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Date
2005
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Article