Estudio de la integridad superficial del Acero Inoxidable Dúplex 2205 al variar parámetros como velocidad de avance y profundidad de corte en la operación de fresado

Abstract

The aim of the present document is the superficially characterizing of a 2205 duplex stainless steel after being subjected to a milling machining process with the variation of parameters such as feed rate and depth of cut resulting in different combinations of which the best can be concluded combination of parameters. This research is important to know the relationship between the speed of advance and depth of cut with the surface roughness, in addition to knowing the properties and effects on the material that are achieved with the different machining parameters. These results were obtained by performing different tests on the specimens; surface roughness and microhardness were measured, with the help of micro and macrographs it was observed if there are microstructural changes in the material and if cracks or other surface defects were originated. In this way, an information backup is obtained for the choice of more convenient machining parameters for a given application, the optimal result is that parameter that uses a feed rate of 490 [mm / min] and a depth of 1,5 [mm] since this parameter reaches the lowest surface roughness being 0,442 [µm], this roughness is within the expected range of surface quality of a milling process and in addition with this parameter a zero surface affectation caused by vibrations was evidenced. This parameter presented a long and continuous chip and a cutting insert that does not suffer fractures and presents a mild normal abrasive wear.