Abstract Machining induced residual stresses and surface finish play an important role on the integrity and performance of the machined components. This work aims to investigate the behavior of residual stresses induced by turning followed by grinding and belt-finishing of supermartensitic stainless steel using different cutting conditions. Analyses of residual stresses were conducted by X-ray diffraction technique, using the sin²ψ method. Layer removal by electropolishing was used to assess the subsurface residual stresses and measurements of surface roughness complemented the study. The main contribution of this study is the experimental investigation of how turning and post-turning finishing operations modify surface and subsurface residual stress states in supermartensitic stainless steel, providing practical insights into surface integrity control in machined components. The results show that turning with wiper insert in combination with belt-finishing with finer abrasive belt produced the highest compressive residual stresses on the surface, as well as an affected layer along which the compressive residual stresses were more stable. Grinding also produced surface compressive residual stresses, however, tensile residual stresses of low magnitudes were obtained in the subsurface layers. Regarding surface finish, turning with wiper inserts, lower feed rates and higher cutting speeds resulted in lower Ra values and feed rate showed to influence more expressively on Ra than cutting speed. Both grinding and belt-finishing processes resulted in better surface finish compared to turning, but no expressive difference was observed between the finishing operations.
Quintas et al. (Fri,) studied this question.