Microstructure-based approach to predict the machinability of the ferritic-pearlitic steel C60 by cutting operations

摘要

The material microstructure decisively controls the mechanical properties of the work materials and hence its machinability. Therefore, the consideration of the microstructure in machinability modelling is a very important issue. This paper deals with experimental and simulation investigations on the machinability of the ferritic-pearlitic steel C60 with different microstructures. Based on the Representative Volume Element (RVE) technique, an effective Johnson-Cook material law is derived for the investigated steel C60 via homogenization and is used in orthogonal cutting simulations based on the Coupled Eulerian-Lagrange formulation. The machinability prediction is validated with the experimental results proving the adopted microstructure-based approach.