DEM Simulation of Machining Damage in SiC Pre-Stressing Cutting Process
Based on the theory of metal pre-stressing machining, the method of pre-stressing suitable for ceramic materials machining was presented. Using the cluster method, the discrete element method (DEM) model of ceramic materials machining was established. The DEM simulations of cutting process of SiC ceramic under different machining parameters were carried out by orthogonal test design method, and the effects of machining parameters on the number of surface cracks and maximum crack depth after processing were also analyzed. The results showed that the tool edge radius influenced greatly on the number of surface cracks, while the pre-stress influenced greatly on the maximum crack depth.
Yiwang Bao, Li Tian and Jianghong Gong
S. Q. Jiang et al., "DEM Simulation of Machining Damage in SiC Pre-Stressing Cutting Process", Advanced Materials Research, Vol. 177, pp. 165-169, 2011