Unique cutting phenomena in micro-end-milling

–Mechanism and possibility of occurrence–

Abstract

Due to the small uncut chip thickness in micro – end-milling, which is comparable to the tool edge radius, and the low rigidity of the tool, the cutting process must frequently transit between rubbing/ploughing and cutting. This may reduce the machining stability and surface finish, and increase tool wear. In this study, these unique cutting phenomena were investigated by modeling, computer simulations, and experiments. As a result, a possibility of the unique cutting phenomena proposed has been certified.