Análisis de rugosidad en superficies cóncavas para el acero martensítico M303.

Abstract

In the following technical project, the percentage of influence of different machining factors or parameters on surface roughness has been analyzed technically and statistically, a statistical equation has been obtained for the prediction of Ra roughness in different machining operations has been obtained. A spherical tip cutting tool was used to machine different M303 steel specimens with concave geometry. The speed of cutting, the step, the path of the tool or strategy of cutting, are the parameters applied to cut the steel M303. Both the Taguchi statistical method and the Anova method were used as part of the analysis to obtain optimum roughness. An orthogonal arrangement L27, with three predominant factors such as milling strategy (A), cutting speed (B) and the step (C), were experienced in several trials. With all this study it was determined which is the statistically most influential factor to obtain low surface roughness values in the machining of M3030 Steel with concave surface. The manufacture process was designed taking into account the criteria of CAD - CAM manufacturing processes; and it was simulated through software, before executing it on the CNC milling machine. The simulated experiments allowed validating the correct development and optimal machining parameters for M303 steel.