A numerical study of support positioning for a milling process for a workpiece with low stiffness/Felipe Klein Fiorentin.

Detalhes bibliográficos
Autor(a) principal: Fiorentin, Felipe Klein
Data de Publicação: 2017
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Biblioteca Digital de Teses e Dissertações da UDESC
Texto Completo: http://sistemabu.udesc.br/pergamumweb/vinculos/000053/0000538a.pdf
Resumo: Orientador: Joel Martins Crichigno Filho
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spelling A numerical study of support positioning for a milling process for a workpiece with low stiffness/Felipe Klein Fiorentin.620.1 20Engenharia mecânicaVibraçãoVigasOrientador: Joel Martins Crichigno FilhoDissertação (mestrado)-Universidade do Estado de Santa Catarina, Programa de Pós-Graduação em Engenharia Mecânica, Joinville, 2018.Inclui bibliografiasDisponível em formato AcrobatMachining is a manufacturing process capable of producing parts with a fine surface finish. When there is a need of surface quality for a certain workpiece, the milling is one of the dominant manufacturing processes. Parts with low stiffness tend to exhibit high vibration amplitudes, which reduce considerably the surface quality of the manufactured part. To achieve high levels of surface finish, the vibrations present during the process must be minimized. In order to reduce the vibration levels, it is possible to change some machining parameters, such as feed rate and spindle rotation. However, reducing these parameters, also impacts directly the process required times, making they more costly and time-consuming. An alternative way to reduce vibrations is to change the fixturing system. This system directly influences the dynamic response of the workpiece. The present work aims to improve the surface finish of a crimped beam by adding a locator. Through a finite element model, the current work will determine the best locator position, minimizing the vibrations present during the milling process and, consequently, improving the surface finish. The developed computational code presents simulations on the time domain, with a contact model between the workpiece and the locator. In addition, a model of the cutting force will be studied. Finally, numerical results will be validated through experimental procedures.Exigências do sistema: Adobe Acrobat ReaderCrichigno Filho, Joel Martins OrientadorUniversidade do Estado de Santa Catarina.Programa de Pós-Graduação em Engenharia MecânicaFiorentin, Felipe Klein2017info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesishttp://sistemabu.udesc.br/pergamumweb/vinculos/000053/0000538a.pdfporTexto em inglês com resumo em portuguêsreponame:Biblioteca Digital de Teses e Dissertações da UDESCinstname:Universidade do Estado de Santa Catarinainstacron:UDESCinfo:eu-repo/semantics/openAccess2019-05-11T18:42:33Zmail@mail.com -
dc.title.none.fl_str_mv A numerical study of support positioning for a milling process for a workpiece with low stiffness/Felipe Klein Fiorentin.
title A numerical study of support positioning for a milling process for a workpiece with low stiffness/Felipe Klein Fiorentin.
spellingShingle A numerical study of support positioning for a milling process for a workpiece with low stiffness/Felipe Klein Fiorentin.
Fiorentin, Felipe Klein
620.1 20
Engenharia mecânica
Vibração
Vigas
title_short A numerical study of support positioning for a milling process for a workpiece with low stiffness/Felipe Klein Fiorentin.
title_full A numerical study of support positioning for a milling process for a workpiece with low stiffness/Felipe Klein Fiorentin.
title_fullStr A numerical study of support positioning for a milling process for a workpiece with low stiffness/Felipe Klein Fiorentin.
title_full_unstemmed A numerical study of support positioning for a milling process for a workpiece with low stiffness/Felipe Klein Fiorentin.
title_sort A numerical study of support positioning for a milling process for a workpiece with low stiffness/Felipe Klein Fiorentin.
author Fiorentin, Felipe Klein
author_facet Fiorentin, Felipe Klein
author_role author
dc.contributor.none.fl_str_mv Crichigno Filho, Joel Martins Orientador
Universidade do Estado de Santa Catarina.Programa de Pós-Graduação em Engenharia Mecânica
dc.contributor.author.fl_str_mv Fiorentin, Felipe Klein
dc.subject.por.fl_str_mv 620.1 20
Engenharia mecânica
Vibração
Vigas
topic 620.1 20
Engenharia mecânica
Vibração
Vigas
dc.description.none.fl_txt_mv Orientador: Joel Martins Crichigno Filho
Dissertação (mestrado)-Universidade do Estado de Santa Catarina, Programa de Pós-Graduação em Engenharia Mecânica, Joinville, 2018.
Inclui bibliografias
Disponível em formato Acrobat
Machining is a manufacturing process capable of producing parts with a fine surface finish. When there is a need of surface quality for a certain workpiece, the milling is one of the dominant manufacturing processes. Parts with low stiffness tend to exhibit high vibration amplitudes, which reduce considerably the surface quality of the manufactured part. To achieve high levels of surface finish, the vibrations present during the process must be minimized. In order to reduce the vibration levels, it is possible to change some machining parameters, such as feed rate and spindle rotation. However, reducing these parameters, also impacts directly the process required times, making they more costly and time-consuming. An alternative way to reduce vibrations is to change the fixturing system. This system directly influences the dynamic response of the workpiece. The present work aims to improve the surface finish of a crimped beam by adding a locator. Through a finite element model, the current work will determine the best locator position, minimizing the vibrations present during the milling process and, consequently, improving the surface finish. The developed computational code presents simulations on the time domain, with a contact model between the workpiece and the locator. In addition, a model of the cutting force will be studied. Finally, numerical results will be validated through experimental procedures.
Exigências do sistema: Adobe Acrobat Reader
description Orientador: Joel Martins Crichigno Filho
publishDate 2017
dc.date.none.fl_str_mv 2017
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
status_str publishedVersion
format masterThesis
dc.identifier.uri.fl_str_mv http://sistemabu.udesc.br/pergamumweb/vinculos/000053/0000538a.pdf
url http://sistemabu.udesc.br/pergamumweb/vinculos/000053/0000538a.pdf
dc.language.iso.fl_str_mv por
Texto em inglês com resumo em português
language por
language_invalid_str_mv Texto em inglês com resumo em português
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Biblioteca Digital de Teses e Dissertações da UDESC
instname:Universidade do Estado de Santa Catarina
instacron:UDESC
reponame_str Biblioteca Digital de Teses e Dissertações da UDESC
collection Biblioteca Digital de Teses e Dissertações da UDESC
instname_str Universidade do Estado de Santa Catarina
instacron_str UDESC
institution UDESC
repository.name.fl_str_mv -
repository.mail.fl_str_mv mail@mail.com
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