A Study on the Residual Stress Distributions by Turning

抄録

The residual stress distributions by turning were measured by X-ray under several cutting conditions changing the cutting speed, the feed and the depth of cut. Also the effect of cutting oil was examined. The conclusions obtained in this study are summarized as follows. A decrease of cutting speed decreases the tensile residual stress near the surface, and increases the depth of the residual stress layer. An increase of feed shifts the surface residual stress layer. On the other hands, an increase of depth of cut does not affect the residual stress distributions. The effect of cutting oil on the residual stresses is seen when the cutting speed is below 50 m/min. An empirical formula of surface residual stresses is obtained for present cutting conditions.