Análisis del proceso de ranurado del material compuesto de matríz polimérica con resina epoxi y poliéster reforzado con cascarilla de arroz

Abstract

Actually, the machining of composites has taken special importance in the industry dedicated to the production of structural components, however, due to the characteristics of these materials, a special sensitivity is observed to evaluate surface quality, so that as a contribution to the study of the machining of composite materials, an experimental research was developed focused on the analysis of the grooving process of the composite material made of polymer matrix reinforced with rice husk, which can be very useful in the bodywork industry and in the construction area as a replacement for wood and plaster. For the development of the grooving test, the response surface method based on the central composite design was used, from which 104 experiments were obtained to evaluate the surface quality, roughness and delamination factor (input and output) left by the machining process. From the analysis of variance (ANOVA) the adequacy of the experimental model was corroborated where it was determined that the optimum material to execute a grooving process is the compound of RE + CA applying a cutting speed of 70 (m / min), advance of 0.1 (mm / rev), working with a 103 S tool, obtaining minimum input and output delamination and acceptable roughness for said process. In addition, tests of UV degradation and traction were developed to observe the behavior of the compound, noting that the RP + CA composite exposed to an exposure time interval of 0, 50, 100, and 150 hours exhibits increased resistance to tension unlike the composite material of RE + CA that shows a considerable loss of mechanical property.