Browsing by Author "Pilatasig Plasencia, Jairo Danilo"

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    Estudio comparativo del proceso de soldadura SMAW y GTAW en un acero inoxidable martensítico AISI 420 y su influencia en las propiedades mecánicas
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Mecánica, 2020) Pilatasig Plasencia, Jairo Danilo; Vaca Ortega, Wilson Henry
    The research work refers to the comparison of the SMAW and GTAW welding processes in a martensitic stainless steel, with different contribution materials in each of the welding processes, to achieve technological and scientific benefits in the industries, obtaining mechanical properties equal or better than existing ones with a lower manufacturing cost. This project was carried out in an AISI 420 martensitic stainless steel with the SMAW and GTAW welding processes with input material in the GTAW ER312, ER308 process and a combination of ER308 and ER312; while in the SMAW process E312- 16, E308 L-16 and a combination of both were used, continuing with the construction of the specimens to subsequently perform tensile, impact and hardness tests VICKERS, resulting in valid results with The purpose of evaluating its influence on the mechanical properties of the joints produced, based on the AWS code B4.0, the tests being carried out at the Carrocero Metalmechanical Productive Development Center of the Municipal Government of Tungurahua. After having performed the required tests, an analysis and interpretation of the results was carried out, obtaining that the GTAW welding process is the most recommended, while the contribution material that has the highest tensile strength 674.6 MPa, as well as limit of creep 136,380 Mpa, is the ER - 312. Finally, conclusions and recommendations of the results obtained were given.