研削加工層における残留応力とひずみにおよぼす研削条件の影響

Abstract

Up to this time, many researches regarding grinding residual stress have been reported. About the distribution of residual stress below the ground surface, large tensile stress is found in the layer neighboring the surface. Usually it is considered that residual stress may mainly be caused by the heat occurring due to the grinding. Simultaneously, it is necessary to consider that plastic deformation generated under the wheel-work contact zone results in the occurrence of residual stress.In this report, the authors have investigated residual stress from the above view point. We used carbon steel S45C as specimens and measured residual stresses of the specimens ground under various grinding conditions.We measured plastic distortion at each point of the specimens which were taken out in the process of grinding, and investigated the influence of plastic distortion on the occurrence of residual stresses.