Maestría en Mecánica Mención Manufactura

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Subject: search.filters.subject.PROPIEDADES MECÁNICAS

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    Determinación del proceso tecnológico para la fabricación de fachaletas de PVC como material opcional en la construcción de viviendas
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Mecánica Mención Manufactura, 2021-06) Solís Santamaria, Tannia Magally; Carrillo Rosero, Carlos Mauricio
    This project deals with the manufacture of cladding by injection molding of PVC polymer as an alternative material for the construction industry, where the analysis and design of the cladding mold are carried out using CAD/CAM software programs. The use of CAD/CAM tools allows reducing both, production time and cost. As this process occurs through injection molding, custom products can be manufactured meeting the needs of various sectors. Through the determination to depend upon the technological process for the manufacture of cladding, tests are carried out to validate the mechanical properties of cladding through compression, impact, and flammability tests along with UV ray experiments, thickness, production, and commercial cost, which are parameters to determine the quality of the product. To simplify the manufacturing process, a technological report of this study was conducted through the description of adequate parameters for its correct production. The results were favorable as 896 cladding molds, with a thickness of 2 mm, a net weight of 25 grams, and a selling price of 3.73 U.S. dollars per square meter, were produced. Therefore, cladding commercial cost, as well as weight, are significantly lowered concerning what it would represent within the construction industry.
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    Optimización de las propiedades mecánicas a fractura para juntas soldadas a tope bajo proceso SMAW (AWS D1.1) utilizadas en la fabricación de estructuras metálicas en la compañía SEMADIJE LTDA
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Mecánica Mención Manufactura, 2021-06) Reyes Pérez, Diego Fernando; Paredes Salinas, Juan Gilberto
    The present development work is focused on the optimization of the mechanical properties to fracture for butt welded joints under SMAW process. For this purpose, a combination analysis of the most influential variables in the welding process was carried out and its mechanical properties were tested by tensile, crack propagation and impact tests. The base material used for this research was ASTM A572 grade 50 steel, with E-6010, E-6011 and E-7018 filler materials, using different percentages of the latter for each combination. Regarding the welded joints, the SMAW welding process was used, which complies with the requirements of the AWS D1.1 code, and which is widely used in the manufacture of metallic structures. From the aforementioned tests, evaluations were obtained, which allow to statistically analyze each one of them, which allows to obtain the optimum combination with respect to their resistance to fracture, both individually and globally. After the respective analyses, it can be seen that the combination that presents an improvement in the mechanical properties to fracture is the one that corresponds to the use of the E-7018 electrode with a type of X-shaped joint.