An Analysis of the Effects of Chip-groove Geometry on Machining Performance Using Finite Element Methods

摘要

This paper discusses the influence of major chip-groove parameters of a cutting tool on the chip formation process in orthogonal machining using finite element(FE)methods.In the FE formulation,a thermal elastic-viscoplastic material model is used together with a modified Johnson-Cook material law for the flow stress.The chip back-flow angle and the chip up-curl radius are calculated for a range of cutting conditions by varying the chip-groove parameters.The analysis provides greater understanding of the effectiveness of chip-groove configurations and points a way to correlate cutting conditions with tool-wear when machining with a grooved cutting tool.