Estudo dos parâmetros de processo de dobramento de chapas de aço laminado a quente
Autor(a) principal: | |
---|---|
Data de Publicação: | 2022 |
Tipo de documento: | Trabalho de conclusão de curso |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFSCAR |
Texto Completo: | https://repositorio.ufscar.br/handle/ufscar/16272 |
Resumo: | Among the various processes of sheet metal formability, the folding stands out for its simplicity and replicability, being considered a of the most recurrent operations in metal sheets. In addition, mathematical models were developed providing the understanding of the variables of this process. Thus, the present study sought to explain and calculate equations found in the literature related to some bending parameters, clarifying their influences on the magnitude of the bending force, the recovery elasticity and the force generated at the support points, which can have negative effects such as localized deformation, markings and cracks. The chosen parameters were divided into groups, as follows: related to material properties (limit of yield, tensile strength and elastic modulus), the dimensions of the sheet (thickness, length and width) and to the matrix (U-shaped, L-shaped, V-shaped and their channel opening widths). To help the interpretation of negative effects and numerical results, the mechanical properties (included in the studied property range) of eight types of hot-rolled steel sheets (low carbon, microalloyed and stainless steel) commonly processed by bending were used. It was verified that the magnitude of the maximum bending force reached comes from the higher mechanical properties of the materials, due to the increase in the dimensions of the plate, by the use of a V-shaped matrix with the smallest possible channel opening width. It was shown a greater magnitude of the force generated in the support points of the plate, when added they can reach twice the bending force. The springback was demonstrated by the internal radius of the bend after this phenomenon, presenting small variations that were studied. In view of the above, all the results were discussed and solutions to the problems encountered in this process were proposed. |
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Leite, Matheus FoloniZepon, Guilhermehttp://lattes.cnpq.br/7924187202036614Coury, Francisco Gilhttp://lattes.cnpq.br/8609825406277730cb1cf7e5-26f8-4db4-9d1e-ea591cb4f3212022-06-10T14:05:01Z2022-06-10T14:05:01Z2022-04-22LEITE, Matheus Foloni. Estudo dos parâmetros de processo de dobramento de chapas de aço laminado a quente. 2022. Trabalho de Conclusão de Curso (Graduação em Engenharia de Materiais) – Universidade Federal de São Carlos, São Carlos, 2022. Disponível em: https://repositorio.ufscar.br/handle/ufscar/16272.https://repositorio.ufscar.br/handle/ufscar/16272Among the various processes of sheet metal formability, the folding stands out for its simplicity and replicability, being considered a of the most recurrent operations in metal sheets. In addition, mathematical models were developed providing the understanding of the variables of this process. Thus, the present study sought to explain and calculate equations found in the literature related to some bending parameters, clarifying their influences on the magnitude of the bending force, the recovery elasticity and the force generated at the support points, which can have negative effects such as localized deformation, markings and cracks. The chosen parameters were divided into groups, as follows: related to material properties (limit of yield, tensile strength and elastic modulus), the dimensions of the sheet (thickness, length and width) and to the matrix (U-shaped, L-shaped, V-shaped and their channel opening widths). To help the interpretation of negative effects and numerical results, the mechanical properties (included in the studied property range) of eight types of hot-rolled steel sheets (low carbon, microalloyed and stainless steel) commonly processed by bending were used. It was verified that the magnitude of the maximum bending force reached comes from the higher mechanical properties of the materials, due to the increase in the dimensions of the plate, by the use of a V-shaped matrix with the smallest possible channel opening width. It was shown a greater magnitude of the force generated in the support points of the plate, when added they can reach twice the bending force. The springback was demonstrated by the internal radius of the bend after this phenomenon, presenting small variations that were studied. In view of the above, all the results were discussed and solutions to the problems encountered in this process were proposed.Dentre os diversos processos de formabilidade de chapas metálicas, o dobramento se destaca por sua simplicidade e replicabilidade, sendo considerado uma das operações mais recorrentes em chapas metálicas. Em adição, modelos matemáticos foram desenvolvidos propiciando o entendimento das variáveis que envolvem este processo. Deste modo, o presente estudo buscou explicar e calcular equações encontradas na literatura relacionadas à alguns parâmetros de dobramento, esclarecendo suas influências na magnitude da força de dobramento, da recuperação elástica e da força gerada nos pontos de apoio, que podem acarretar efeitos negativos como a deformação localizada, marcações e trincas. Os parâmetros escolhidos foram divididos em grupos, sendo eles: relacionados as propriedades do material (limite de escoamento, limite de resistência à tração e módulo elástico), as dimensões da chapa (espessura, comprimento e largura) e à matriz (dos tipos em U, em L, em V e suas larguras de abertura do canal). Para auxílio da interpretação dos efeitos negativos e dos resultados numéricos foram utilizadas as propriedades mecânicas (incluídas na faixa de propriedades estudada) de oito tipos de chapas de aço laminadas a quente (aços baixo carbono, microligados e inox) comumente processadas por dobramento. Verificou-se que a magnitude da força de dobramento máxima atingida advém de propriedades mecânicas dos materiais mais elevadas, pelo aumento das dimensões da chapa, pela utilização de matriz em V com a menor largura de abertura do canal possível. Foi mostrado uma maior magnitude da força gerada nos pontos de apoio da chapa, quando somadas podem atingir duas vezes a força de dobramento. O retorno elástico foi demonstrado pelo raio interno da dobra após este fenômeno, apresentando pequenas variações que foram estudadas. Em face do exposto, discutiu-se todos os resultados e propôs-se soluções para os problemas encontrados neste processo.Não recebi financiamentoporUniversidade Federal de São CarlosCâmpus São CarlosEngenharia de Materiais - EMaUFSCarAttribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessDobramentoParâmetros de dobramentoForça nos pontos de apoioRetorno elásticoForça de dobramentoENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA::METALURGIA FISICAEstudo dos parâmetros de processo de dobramento de chapas de aço laminado a quenteStudy of processing parameters of hot-rolled steel sheets bendinginfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/bachelorThesis600600568abd57-0e60-4552-b88c-e4fa0419bac1reponame:Repositório Institucional da UFSCARinstname:Universidade Federal de São Carlos (UFSCAR)instacron:UFSCARORIGINALMatheus Foloni Leite.pdfMatheus Foloni Leite.pdfTCCapplication/pdf1791346https://repositorio.ufscar.br/bitstream/ufscar/16272/1/Matheus%20Foloni%20Leite.pdfe1b2272b700be37d0c639f0fcd4f41c5MD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8811https://repositorio.ufscar.br/bitstream/ufscar/16272/2/license_rdfe39d27027a6cc9cb039ad269a5db8e34MD52TEXTMatheus Foloni Leite.pdf.txtMatheus Foloni Leite.pdf.txtExtracted texttext/plain61781https://repositorio.ufscar.br/bitstream/ufscar/16272/3/Matheus%20Foloni%20Leite.pdf.txt4756c9ec29084dc435d46317c3f0daecMD53THUMBNAILMatheus Foloni Leite.pdf.jpgMatheus Foloni Leite.pdf.jpgIM Thumbnailimage/jpeg9020https://repositorio.ufscar.br/bitstream/ufscar/16272/4/Matheus%20Foloni%20Leite.pdf.jpg0a91f885483f748f1e5da7a1f5c834feMD54ufscar/162722023-09-18 18:32:24.31oai:repositorio.ufscar.br:ufscar/16272Repositório InstitucionalPUBhttps://repositorio.ufscar.br/oai/requestopendoar:43222023-09-18T18:32:24Repositório Institucional da UFSCAR - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.por.fl_str_mv |
Estudo dos parâmetros de processo de dobramento de chapas de aço laminado a quente |
dc.title.alternative.eng.fl_str_mv |
Study of processing parameters of hot-rolled steel sheets bending |
title |
Estudo dos parâmetros de processo de dobramento de chapas de aço laminado a quente |
spellingShingle |
Estudo dos parâmetros de processo de dobramento de chapas de aço laminado a quente Leite, Matheus Foloni Dobramento Parâmetros de dobramento Força nos pontos de apoio Retorno elástico Força de dobramento ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA::METALURGIA FISICA |
title_short |
Estudo dos parâmetros de processo de dobramento de chapas de aço laminado a quente |
title_full |
Estudo dos parâmetros de processo de dobramento de chapas de aço laminado a quente |
title_fullStr |
Estudo dos parâmetros de processo de dobramento de chapas de aço laminado a quente |
title_full_unstemmed |
Estudo dos parâmetros de processo de dobramento de chapas de aço laminado a quente |
title_sort |
Estudo dos parâmetros de processo de dobramento de chapas de aço laminado a quente |
author |
Leite, Matheus Foloni |
author_facet |
Leite, Matheus Foloni |
author_role |
author |
dc.contributor.author.fl_str_mv |
Leite, Matheus Foloni |
dc.contributor.advisor1.fl_str_mv |
Zepon, Guilherme |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/7924187202036614 |
dc.contributor.advisor-co1.fl_str_mv |
Coury, Francisco Gil |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://lattes.cnpq.br/8609825406277730 |
dc.contributor.authorID.fl_str_mv |
cb1cf7e5-26f8-4db4-9d1e-ea591cb4f321 |
contributor_str_mv |
Zepon, Guilherme Coury, Francisco Gil |
dc.subject.por.fl_str_mv |
Dobramento Parâmetros de dobramento Força nos pontos de apoio Retorno elástico Força de dobramento |
topic |
Dobramento Parâmetros de dobramento Força nos pontos de apoio Retorno elástico Força de dobramento ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA::METALURGIA FISICA |
dc.subject.cnpq.fl_str_mv |
ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA::METALURGIA FISICA |
description |
Among the various processes of sheet metal formability, the folding stands out for its simplicity and replicability, being considered a of the most recurrent operations in metal sheets. In addition, mathematical models were developed providing the understanding of the variables of this process. Thus, the present study sought to explain and calculate equations found in the literature related to some bending parameters, clarifying their influences on the magnitude of the bending force, the recovery elasticity and the force generated at the support points, which can have negative effects such as localized deformation, markings and cracks. The chosen parameters were divided into groups, as follows: related to material properties (limit of yield, tensile strength and elastic modulus), the dimensions of the sheet (thickness, length and width) and to the matrix (U-shaped, L-shaped, V-shaped and their channel opening widths). To help the interpretation of negative effects and numerical results, the mechanical properties (included in the studied property range) of eight types of hot-rolled steel sheets (low carbon, microalloyed and stainless steel) commonly processed by bending were used. It was verified that the magnitude of the maximum bending force reached comes from the higher mechanical properties of the materials, due to the increase in the dimensions of the plate, by the use of a V-shaped matrix with the smallest possible channel opening width. It was shown a greater magnitude of the force generated in the support points of the plate, when added they can reach twice the bending force. The springback was demonstrated by the internal radius of the bend after this phenomenon, presenting small variations that were studied. In view of the above, all the results were discussed and solutions to the problems encountered in this process were proposed. |
publishDate |
2022 |
dc.date.accessioned.fl_str_mv |
2022-06-10T14:05:01Z |
dc.date.available.fl_str_mv |
2022-06-10T14:05:01Z |
dc.date.issued.fl_str_mv |
2022-04-22 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/bachelorThesis |
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bachelorThesis |
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dc.identifier.citation.fl_str_mv |
LEITE, Matheus Foloni. Estudo dos parâmetros de processo de dobramento de chapas de aço laminado a quente. 2022. Trabalho de Conclusão de Curso (Graduação em Engenharia de Materiais) – Universidade Federal de São Carlos, São Carlos, 2022. Disponível em: https://repositorio.ufscar.br/handle/ufscar/16272. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufscar.br/handle/ufscar/16272 |
identifier_str_mv |
LEITE, Matheus Foloni. Estudo dos parâmetros de processo de dobramento de chapas de aço laminado a quente. 2022. Trabalho de Conclusão de Curso (Graduação em Engenharia de Materiais) – Universidade Federal de São Carlos, São Carlos, 2022. Disponível em: https://repositorio.ufscar.br/handle/ufscar/16272. |
url |
https://repositorio.ufscar.br/handle/ufscar/16272 |
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por |
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Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ info:eu-repo/semantics/openAccess |
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Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ |
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openAccess |
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Universidade Federal de São Carlos Câmpus São Carlos Engenharia de Materiais - EMa |
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UFSCar |
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Universidade Federal de São Carlos Câmpus São Carlos Engenharia de Materiais - EMa |
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