Ingeniería Mecánica

Permanent URI for this collectionhttp://repositorio.uta.edu.ec/handle/123456789/900

Browse

Subject: search.filters.subject.ACEROS

Search Results

Now showing 1 - 5 of 5
  • No Thumbnail Available
    Item
    Análisis integral de la influencia de parámetros de mecanizado y lubricantes ecoeficientes en la productividad y calidad superficial en procesos de mecanizado sostenible de aceros
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Mecánica, 2024-08) Celi Mariño, Fabián Patricio; Núñez Núñez, Melanie Doménica; Núñez Núñez, Diego Fernando
    There is a discrepancy between traditional machining methods and the urgent need to implement ecological and sustainable strategies in the steel and machining industry in Ecuador. This misalignment is evident in the choice of lubricants and the optimization of machining parameters, affecting the production and surface quality of products. Aligning machining processes with sustainability principles is crucial for the sector's efficiency and its contribution to the country's sustainable growth. The primary objective is to evaluate the relationship between these variables and determine optimal strategies for sustainable machining of steels. The methodology employed is based on three stages: A correlational analysis of data from previous research was conducted to identify relationships between the study variables. Recommendations and strategies for implementing sustainable cooling in machining processes were developed. Experimental validation of the predictions was carried out through specific tests that allowed the hypotheses to be verified. The results obtained confirm the significant influence of machining parameters and eco-efficient lubricants on the productivity and surface quality of steel machining. The potential of Minimum Quantity Lubrication (MQL) to prolong tool life and reduce the environmental impact of the process is highlighted. The results indicated that cutting speed, spindle speed, tool nose radius, nanoparticle concentration, type of lubricating oil, number of nozzles, incidence angle, and cooling method are variables that influenced surface quality and flank wear.
  • No Thumbnail Available
    Item
    Diseño y construcción del sistema mecánico para el ensayo de doblado guiado en juntas soldadas para los laboratorios de la Facultad de Ingeniería Civil y Mecánica
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Mecánica, 2020-10) Abad Sarango, Edgar Patricio; Analuiza Maiza, Oscar Iván
    For the elaboration of this technical project, the bibliographic information was compiled from various sources, with this information the first design proposal was made based on the ASTM E190 standard and the AWS B4.0 standard, after several corrections it was obtained a final design, later the design was drawn in software to verify its resistance in the loads and stresses to which it was to be subjected, to obtain a satisfactory result, this project was built with 2 types of materials: A36 steel for its machinability and accessibility in the market and also with 304L stainless steel (UNS S30400) that has a high corrosive resistance, in addition a test procedure and a laboratory guide were carried out, once the construction of the mechanical system was completed, it was installed in the 30-ton hydraulic press that is in the welding laboratory, the operation of all its elements was verified, finally several tests were carried out at different thicknesses with the respective pistons and in compliance with all the procedures dictated by the ASTM E190 standard and the AWS B4.0 standard, after this the tests carried out show reliable results, in this way the proposal prepared has met the requirements of the issue raised.
  • No Thumbnail Available
    Item
    Diseño y construcción de una prensa y molde para compactar polvo metálico para el laboratorio de materiales de la Carrera de Ingeniería Mecánica
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Mecánica, 2019) Valencia Escobar, John Bryan; López Villacís, Gonzalo Eduardo
    This project aims to develop a methodology for the design and construction of hydraulic presses with powder metallurgy applications, and also allows people interested in the subject to determine the most significant design theories for this case. For this, the manufacturing process of the metal powder compacting elements was carried out, according to ASTM B 925-03, which allows the preparation and production of specimens for P / M powder metallurgical tests, and for each mechanical element of the hydraulic press, considering the design theories learned in the course of the career, put into practice in this thesis topic. For the manufacture of powder metallurgical specimens, a series of samples were made and their geometry was evaluated to determine their validity by means of a 6 ”/ 150 mm insize brand king foot calibrator that provides a minimum percentage of error as established by ASTM B 925 -03. After having performed the analysis of the dimensions of specimens obtained, it was evidenced that the dimensions of these tests were maintained within the tolerance range established by ASTM B 925-03. With this, it was possible to verify the optimal operation of the machine and that our project met the objectives established for the different test specimens.
  • No Thumbnail Available
    Item
    Diseño y construcción de un molde de inyección para el soporte unión entre el casco y la carcasa de la orejera para la empresa Halley Corporación
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Carrera de Ingeniería Mecánica, 2018) Fonseca Muncha, Antonio Fernando; Carrillo Rosero, Carlos Mauricio
    The present work has as objective to satisfy the necessity of the clients of the Halley Corporation Company, since this one comes to be sponsor of this project with the purpose of manufacturing a mold that counts on the geometric requirements and of design imposed by the same one to produce this type of supports which have materials provided by the company, which have the necessary characteristics for its elaboration. The project started from an idea of making the support in the form of a semidiadema which resembles what is required and necessary by the company, for which a design was presented by the author of this same work that had several modifications based on what is required. As a second point, the same calculations that were made based on the materials that the company had for this project, such as ABS as material for injection and other materials for the manufacture of the mold, were taken into consideration. Generating estimated values in terms of cooling systems, power and machining which would allow the mold to fulfill its function and have no problem. Once established these values and considering the availability of the machinery that owned the company proceeded to perform both manual and CNC machining of most parts of the mold and then perform the assembly of these and proceed to perform the necessary tests in the injecting machine itself of the company, demonstrating that what was accomplished was successful based on decision making and selection of both design and geometric parameters.
  • No Thumbnail Available
    Item
    Estudio de sistemas automatizados de temperatura aplicados en tratamientos térmicos y su incidencia en las propiedades de los aceros en el laboratorio de la Facultad de Ingeniería Civil y Mecánica
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Carrera de Ingeniería Mecánica, 2012) Toasa Peralta, Jaime Enrique; Villacís, Santiago
    El presente proyecto de investigación detalla el estudio de sistemas automatizados de temperatura aplicados en tratamientos térmicos y su incidencia en las propiedades de los aceros, para lo cual se construyó un horno tipo mufla con el sistema de control más adecuado mediante el uso de dispositivos existentes en el Laboratorio de la Facultad de Ingeniería Civil y Mecánica, el mismo que va ha ser implementado en el Laboratorio de Materiales, el mismo que se podrá realizar prácticas de diferentes tratamientos térmicos. Otro motivo para la realización de este estudio fue el interés de investigar los materiales que conforman el horno eléctrico, el mismo que permita tener un alta eficiencia y consiguiendo un ahorro energético considerable. Se diseñó y construyó un horno eléctrico tipo mufla, el cual tiene en su interior la cámara de calentamiento que se encuentra realizada con ladrillo refractario Erecos U33 seguido de un ladrillo aislante poroso Erecos U26, el mismo que tiene las siguientes dimensiones: 9x4,5x2,5 pulgadas; además se utilizó como material aislante por sus características la fibra cerámica lo cual soporta temperaturas de hasta 800 grados centígrados. La confinación de las resistencias se realizó en un arreglo tipo bóveda las mismas que están ubicadas en las paredes laterales de la cámara de calentamiento. Para las resistencias se utilizó un material especial para hornos de alta temperatura llamado Nicromo, que es una aleación Níquel-Cromo y está diseñado para trabajar con temperaturas de hasta 1200 grados centígrados, implementado en forma de espirales con un diámetro interior de 10 mm, las resistencias están conectadas a un circuito eléctrico el cual consta de un controlador de temperatura tipo E5CN OMRON, contactor tipo J7K-BM-10 OMRON, temporizador Tipo H3BA OMRON y una termocupla tipo k con una longitud de 12 pulgadas rígida. El horno eléctrico tiene una cámara interna útil de 170mm de alto, 210mm de ancho y 300 mm de profundidad, además de esto tiene una potencia de 3800 W que funciona con un voltaje de 220 V alcanzando una temperatura de 900 grados centígrados en tres horas y media, siendo óptimo para realizar cualquier tratamiento térmico en acero.