Browsing by Author "Pérez Amores, Evelyn Jackeline"

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    Análisis del proceso de taladrado del material compuesto de matriz polimérica reforzada con fibra de abacá
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Mecánica, 2019) Pérez Amores, Evelyn Jackeline; Pérez Salinas, Cristian Fabián
    The objective of this experimental work is to analyze whether the factors (cutting speed, feed rate, resin type and bit type) influence a composite material formed by a polymer matrix and abaca fiber reinforcement. For which a design matrix with input variables was considered: spindle speeds of 468.63, 800, 1600, 2400 and 2731.3 rpm, feed speeds of 82.72, 120, 210, 337.28 mm / min, type of resin (polymer or epoxy) and bit (CERIN 109Ø10, CERIN 118Ø10). While in the output variables the delamination factor (Fd) and the roughness (Ra) were considered. With the obtained data, the microscopy was performed to determine the delamination factor and by means of the rugosimeter the measurements of Ra were obtained, later with the design a response surface analysis was carried out. In such a way that when using Epoxy Resin and CERIN 118Ø10 bit, the best surface finish was generated, using the cutting parameters: spindle speed 468.63 rpm, cutting speed 14.72 m/min and feed speed of 337.28 mm / min. Resulting in an input delamination of 1.0642, output delamination of 1.0183 and roughness of 1.4337 μm. In addition, “Standard Test Method for Water Absorption of Plastics” based on Standard D 570-98, in order to verify which of the two compounds concentrates the greatest amount of water, obtained as a result of the epoxy matrix compound and abaca fiber. absorbs more water% (12.995%) unlike the polyester matrix compound and abaca fiber (11.345%).