Caracterización de la calidad superficial de mecanizado en el proceso de cilindrado del Torno ROMI C420

Abstract

In the present research work, the machining surface quality was characterized by the turning process in the lathe machine ROMI C420. For this purpose the surface finish and the metallurgical characteristics which are the microhardness and the thickness of the deformed surface layer of the raw material (AISI 1018) was analyzed for different levels of cutting parameters (revolutions, feed and depth). To determine the surface quality, surface roughness measurements were made, and the determination of the metallurgical characteristics was made microhardness tests and metallographic tests. Based on the determination of the cutting parameters and the design of the experiments, roughness measurements were taken for each combination of cutting parameters and tabulating them. To continue in obtainment the microhardness along the cross area of the specimens, as well as obtainment the thickness of the layer in the periphery of the mechanized specimens, following the guidelines from the evaluation of surface quality described in the Machining Data Book. Based on the results of the study made to the machining, three types of behaviors were determined that affect each combination of parameters made in the experimentation, defining quantitatively and the degree of influence of the parameter or parameters that allow to achieve the final characterization of the machining under the experimental conditions proposed in this study.