Abstract
To clarify fracture mechanism of cutting process with wedge-shape tool, molecular dynamics simulations are conducted. Al single crystalline is dealt with and variation of cutting force, morphology of fracture and stress distribution are investigated. Then, effects of angle of wedge-shape tool tip and orientation of crystal on them are considered. Slip direction and plane have large influences on stress distribution and deformation morphology. Constrains to atomic slip result from the shape of tool and orientation of crystal. It is shown that atomic slips cause compressive stress at inner region of specimen near cutting tool and this is the main source of fracture.
