Abstract
This paper describes the side burr produced on both sides of cut surface in orthogonal cutting. In the theoretical study, side burr-root thickness k, corresponding to maximum depth of yield bound, is numerically calculated based on a plane stress model under uniformly stressed on a shear zone by the resultant cutting force. In the experimental investigation, the k is measured in some cutting conditions and then appropriateness of the theory is verified. Furthermore effects of cutting conditions on the k is evaluated both theoretically and experimentally. Main results obtained are as follows: (1) The increase of depth of cut and cutting edge radius enlarge the k. (2) The increase of rake angle and cutting force diminish the k. (3) The decrease of shear stress on a shear plane and friction angle on a rake face and the increase of tensile yield stress diminish the k. These results obtained by experiments represent a good agreement with theoretical results quantitatively.
