3D Finite Element Simulation of Inclined Cutting of Hardened 45 Steel

Abstract

The research of the simulation for high speed cutting is usually based on 2D modeling by now, and the 3D simulation is few. Because the cutting process is a 3D deformation of workpiece, it's badly in need of the research on 3D finite element simulation of cutting process for further reveal the mechanism of high speed cutting. The 3D simulation of inclined cutting of hardened 45 steel (45HRC) is carried out base on ABAQUS. The forming process of serrated chip is simulated by adopting the Johnson-cook material modeling and separation criterion of shear failure. The change of chip morphology, chip flow angle and deformation coefficient of width under different rake angle and cutting depth are analyzed. The results show that the segment degree of chip becomes larger with the decrease of rake angle and increase of cutting depth. The chip flow angle is not effected by rake angle and its value is approximately equal to tool cutting edge inclination angle, an it increases with the increase of cutting depth. The deformation coefficient of width increase with the decrease of rake angle and increase of cutting depth.