Method of Determining the Actual Form of the Tool Edge from Chips

Abstract

A method has been proposed by which a variety of actual cutting edge forms in cutting can be estimated from the information obtained with the observation of longitudinal section of chips only, and graphs illustrated by this method are presented. The formulas by which the actual rake angle in cutting can be calculated with the lattice pattern or the fibrous structure in the work deformed are induced. By applying these methods, the shape of built-up edge, the actual edge of restricted tool, in cutting, and so forth have been determined. And then, experiments have been carried out to substantiate these methods. The results coincide with the theory.