Abstract
In the machining process, the work hardened surface layer and the cutting burr are generated by plastic deformation beneath the machined surface, which was due to the pressure of a cutting tool. Therefore, it is considered that there is some relationship between them. The relationship between the size of the cutting burr and the depth of the work hardened surface layer was investigated experimentally in the orthogonal cutting with a shaper. As a result, it was clear that there is a significant relationship between the size of the cutting burr and the depth of the work hardened surface layer and that they can be estimated by the shear strain applied to the chips.
