Investigation of the Physical Parameters of Duplex Stainless Steel (dss) Surface Integrity after Turning

G. Krolczyk, Opole University of Technology, Faculty of Production Engineering and Logistics, Opole, Poland; P. Nieslony, Opole University of Technology, Department of Manufacturing Engineering and Production Automation; S. Legutko, Poznan University of Technology, Institute of Mechanical Technology, Poznan, Poland; I. Samardzic, J.J. Strossmayer University of Osijek, Mechanical Engineering Faculty of Slavonski Brod, Slavonski Brod, Croatia. The article presents the influence of machining parameters on the microhardness of surface integrity (SI) after turning by means of a coated sintered carbide wedge with a coating with ceramic intermediate layer. The investigation comprised the influence of cutting speed on the SI microhardness in dry machining. The material under investigation was duplex stainless steel with two-phase ferritic-austenitic structure. The results obtained allow for conclusions concerning the exploitation features of processed machine parts.