Modeling and Predicting Cutting Force in Precision Hard Turning

This paper proposes a new approach to modeling the cutting force, based on friction behavior on tool-chip interface in precision hard turning. The modeling touches on such researches as into experimental relationship between cutting force and cutting load on tool-chip friction interface, equivalent transformation of radius cutting edge, transformation between orthogonal cutting and 3D cutting, and calculating cutting force coefficient. The model has realized the transformation from orthogonal cutting to oblique cutting, then to 3D cutting, which can make calculation results of all parameters in orthogonal cutting model transplant into complex 3D cutting. The experiments indicate accuracy and effectiveness of the cutting force prediction model