DPI - Departamento Acadêmico de Processos Industriais
URI permanente desta comunidadehttps://ri.ifam.edu.br/handle/4321/505
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Item Estudo do dimensionamento de soldas de filete produzidas pelo processo de soldagem por eletrodo revestido(2016-12-06) Lêdo, Getro Felipe Simões; Sarkis, Sávio Raider Matos; http://lattes.cnpq.br/6674204758775154; Sarkis, Sávio Raider Matos; http://lattes.cnpq.br/6674204758775154; Gama, Marcelo Martins da; http://lattes.cnpq.br/2955108730907462; Nascimento, Andrea Regina Leite do; http://lattes.cnpq.br/2993012897803928The enormous need for cost reduction has proved to be a determining factor in ensuring the survival and competitiveness of companies in various industries. The wide application of fillet welds, about 80% of all world production, generated the motivation to elaborate the present study on the dimensioning of fillet welds produced by the process of welding to e lectric arc by coated electrode. The aim of the present study was to evaluate the relationship between the resistance and the length of the weld bead, as well as to discuss the behavior of the efficiency and deposition rate of the E6013 and E7018 electrode s as a function of optimum current v alues, as well as to determine t he costs of welding metal using different electrodes. This allowed us to perform a quantitative evaluation on each of the factors considered, besides allowing a qualitative discussion on t he influence of the welding current, the rate and efficiency of deposition of the electrodes considered and the discontinuities in the increase of the welding costs.Item Análise comparativa de juntas soldadas com variação de tensão em chapa de aço carbono 1020 com eletrodo E7018(2016-12-07) Oliveira Neto, Erasmo Aquino de; Gama, Marcelo Martins da; http://lattes.cnpq.br/2955108730907462; Gama, Marcelo Martins da; http://lattes.cnpq.br/2955108730907462; Nascimento, Andrea Regina Leite do; http://lattes.cnpq.br/2993012897803928; Sarkis, Sávio Raider Matos; http://lattes.cnpq.br/6674204758775154This work presents a comparative analysis of top joint in welding with E7018 coated electrode in 1020 carbon steel sheet, by tensile test, and aims at the realization and analysis of resistance of welded metal to sheets welded with the same process, but with different amps. In order to carry out a study of the results, the present work proposes a comparative analysis of bodies of equal thickness of 1/4 ", with posterior tensile testing and analysis of the results by stress strain diagrams. In order to improve the knowledge about the work, is made the bibliographic review study with the main topics related to the study, for example, symbologies used in the welding, welding equipment used in industry, coated electrode concept, as well as its specifications of use, safety standards that are used, the sample body model and the type of test used. The steel used in the study has a low carbon content, on average 0.2%, and is composed of manganese, phosphorus.For the preparation of the test specimens, the plasma cutting process was used due to its ease and simplicity of use. The welding process chosen was the electrode coating with direct current from ESAB MOD OrigoTM ARC 406 machine. The results show the differences in the mechanical strengths, the number of passages and the point of rupture of the weld for each type of current.