Evaluation of Residual Stresses after Irregular Interrupted Machining

Abstract

Residual stress occurs in many machined components and parts. Over time, several methods have been developed for the investigation of residual stress in the material-destructive and non-destructive. This article deals with the evaluation and comparison of residual stress in the material when machining steel C45 and 11CrMo9-10, when the tool enters into the cut and stands out in conditions of an interrupted cut. A non-destructive method, based on X-Ray diffraction, was applied to evaluate the residual stress. The points were measured on the last machined slat by using interrupted cut simulator. An irregular interrupted cut was achieved by gradually machining 4, 3, 2 and 1 slat. The experiments were realized in cooperation with the Faculty of Mechanical Engineering, VSB

The Influence of Cutting Conditions on the Selected Parameters of the Surface Integrity

“…A frequently used method is the X-Ray diffraction. Its principle of measurement is a positioning of the sample under the measuring head, when the collimator must be in position perpendicular to the measuring surface [12]. When the focus is set at a right height, the X-Ray beam radiation penetrates into the material, which bounces back.…”