Microstructure -Level Machining Modeling of Ferrous Alloys

Abstract

The microstructure-level model was validated on machining of ductile iron and two of its constituents: pearlite and ferrite. Orthogonal cutting experiments and simulations were conducted of the three materials. The measured chip morphology and machining forces were compared with the model predictions, and a good correlation between them was found. In addition, the microstructure-level model explained chip formation mechanisms and relationship between chip formation and the machining forces for pearlite, ferrite, and ductile iron.