Estudo da influência do material do porta-ferramenta sobre temperaturas de usinagem no torneamento
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFU |
Texto Completo: | https://repositorio.ufu.br/handle/123456789/14725 https://doi.org/10.14393/ufu.te.2012.105 |
Resumo: | The main objective of this work is the experimental investigation of the effect that the material of the toolholder has on the temperature at tool-chip interface and on the surface temperatures of the cutting tool and toolholder. The study was conducted in dry turning of gray iron with uncoated cemented carbide inserts, using the same cutting parameters. Five toolholders had been confectioned in materials having different thermal conductivity, these being: copper, brass, aluminum, stainless steel and titanium alloy. The toolholders are identical and have the constructive aspects obtained from a commercial toolholder for turning that material. The temperature at the tool-chip interface was measured using the toolworkpiece thermocouple method and the surface temperatures in the tools and the toolholders, by conventional type T thermocouples. The system was modified in order to develop an experimental procedure for the physical compensating of the secondary and parasites thermoelectric signals (emf). Also, modifications was carried out in a conventional tailstock for use in driving the emf signal between the workpiece and a stationary conductor, but without significantly altering the stiffness of the system. The tailstock was electric insulated and a mercury bearing was mounted inside it and their internal connections were turned in reference junctions at room temperature because on otherwise it could act as secondary junctions. The calibration of the tool-workpiece thermocouple was developed in the same experimental apparatus using the modifications implemented in this system. Besides the results obtained with the investigation of the effects of the toolholder material on the surface temperatures of the tool and the tool holder and on the tool-chip interface temperature, this research also presents contributions to the use and performance of the tool-workpiece thermocouple method. |
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2016-06-22T18:39:38Z2013-07-092016-06-22T18:39:38Z2012-12-19KAMINISE, Almir Kazuo. Study on the influence of toolholder material on the cutting temperatures in turning machining. 2012. 122 f. Tese (Doutorado em Engenharias) - Universidade Federal de Uberlândia, Uberlândia, 2012. DOI https://doi.org/10.14393/ufu.te.2012.105https://repositorio.ufu.br/handle/123456789/14725https://doi.org/10.14393/ufu.te.2012.105The main objective of this work is the experimental investigation of the effect that the material of the toolholder has on the temperature at tool-chip interface and on the surface temperatures of the cutting tool and toolholder. The study was conducted in dry turning of gray iron with uncoated cemented carbide inserts, using the same cutting parameters. Five toolholders had been confectioned in materials having different thermal conductivity, these being: copper, brass, aluminum, stainless steel and titanium alloy. The toolholders are identical and have the constructive aspects obtained from a commercial toolholder for turning that material. The temperature at the tool-chip interface was measured using the toolworkpiece thermocouple method and the surface temperatures in the tools and the toolholders, by conventional type T thermocouples. The system was modified in order to develop an experimental procedure for the physical compensating of the secondary and parasites thermoelectric signals (emf). Also, modifications was carried out in a conventional tailstock for use in driving the emf signal between the workpiece and a stationary conductor, but without significantly altering the stiffness of the system. The tailstock was electric insulated and a mercury bearing was mounted inside it and their internal connections were turned in reference junctions at room temperature because on otherwise it could act as secondary junctions. The calibration of the tool-workpiece thermocouple was developed in the same experimental apparatus using the modifications implemented in this system. Besides the results obtained with the investigation of the effects of the toolholder material on the surface temperatures of the tool and the tool holder and on the tool-chip interface temperature, this research also presents contributions to the use and performance of the tool-workpiece thermocouple method.O objetivo principal deste trabalho é a investigação experimental do efeito que o material do porta-ferramenta exerce sobre a temperatura na interface ferramenta/cavaco e sobre as temperaturas superficiais da ferramenta de corte e do próprio porta-ferramenta. O estudo foi desenvolvido com a operação de torneamento cilíndrico externo de ferro fundido cinzento, a seco, com insertos de metal duro, em parâmetros de corte fixos. Cinco portas-ferramentas foram confeccionados em materiais com condutividades térmicas diferentes, sendo esses: cobre, latão, alumínio, aço inoxidável e liga de titânio. Os portas-ferramentas são geometricamente idênticos e têm as características construtivas de um porta-ferramenta comercial próprio ao torneamento daquele material. Mediu-se a temperatura na interface ferramenta/cavaco usando o método do termopar ferramenta-peça e as temperaturas superficiais na ferramenta e nos suportes, por meio de termopares convencionais do tipo T. O sistema termopar ferramenta-peça foi modificado no sentido de se desenvolver um procedimento experimental para a compensação física de forças eletromotrizes secundárias e parasitas. Destaca-se a execução de modificações em uma contra ponta rotativa convencional para o seu uso na condução do sinal da força eletromotriz entre a peça e um condutor estacionário sem, contudo, alterar significativamente a sua rigidez na fixação da peça. Nessas modificações, aplicou-se uma isolação elétrica permanente, implantou-se um mancal de mercúrio no seu interior e promoveu-se mudanças nas suas conexões internas, que poderiam agir como junções secundárias, transformando-as em junções de referência à temperatura ambiente. A calibração do sistema termopar ferramenta-peça foi desenvolvida sobre o próprio aparato experimental usando as modificações implantadas nesse sistema. Os resultados obtidos no trabalho mostram que os materiais usados nos suportes influenciam nas temperaturas superficiais da ferramenta e do porta-ferramenta, porém, que tais materiais não tem efeito significativo sobre as temperaturas da interface ferramenta/cavaco. Além disso, o trabalho apresenta, também, contribuições ao uso e calibração do método do termopar ferramenta-peça.Coordenação de Aperfeiçoamento de Pessoal de Nível SuperiorDoutor em Engenharia Mecânicaapplication/pdfporUniversidade Federal de UberlândiaPrograma de Pós-graduação em Engenharia MecânicaUFUBREngenhariasUsinagemTemperatura na interfaceTermopar ferramenta-peçaCalibraçãoPorta-ferramentaMachiningThe interface temperatureTool-workpiece thermocoupleCalibrationToolholderCNPQ::ENGENHARIAS::ENGENHARIA MECANICAEstudo da influência do material do porta-ferramenta sobre temperaturas de usinagem no torneamentoStudy on the influence of toolholder material on the cutting temperatures in turning machininginfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisGuimarães, Gilmarhttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783806Y6Silva, Marcio Bacci dahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4785913J0Silva, Rosemar Batista dahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4706048P0Lima, Frederico Romagnoli Silveirahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4701265P4Santos, Sandro Cardosohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4703816D9Luchesi, Vanda Mariahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4762989U3http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4782866T1Kaminise, Almir Kazuo81756513info:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFUinstname:Universidade Federal de Uberlândia (UFU)instacron:UFUTHUMBNAILAlmir Kazuo.pdf.jpgAlmir Kazuo.pdf.jpgGenerated Thumbnailimage/jpeg1378https://repositorio.ufu.br/bitstream/123456789/14725/3/Almir%20Kazuo.pdf.jpgd9597e823829b3f2703c09da8d3d30e4MD53ORIGINALAlmir Kazuo.pdfapplication/pdf6727764https://repositorio.ufu.br/bitstream/123456789/14725/1/Almir%20Kazuo.pdf3c24c386dc105385d7f5b736b59063a5MD51TEXTAlmir Kazuo.pdf.txtAlmir Kazuo.pdf.txtExtracted texttext/plain232811https://repositorio.ufu.br/bitstream/123456789/14725/2/Almir%20Kazuo.pdf.txtd2a470542b5c77aebaa742346ab3a58dMD52123456789/147252022-10-03 14:08:56.894oai:repositorio.ufu.br:123456789/14725Repositório InstitucionalONGhttp://repositorio.ufu.br/oai/requestdiinf@dirbi.ufu.bropendoar:2022-10-03T17:08:56Repositório Institucional da UFU - Universidade Federal de Uberlândia (UFU)false |
dc.title.por.fl_str_mv |
Estudo da influência do material do porta-ferramenta sobre temperaturas de usinagem no torneamento |
dc.title.alternative.eng.fl_str_mv |
Study on the influence of toolholder material on the cutting temperatures in turning machining |
title |
Estudo da influência do material do porta-ferramenta sobre temperaturas de usinagem no torneamento |
spellingShingle |
Estudo da influência do material do porta-ferramenta sobre temperaturas de usinagem no torneamento Kaminise, Almir Kazuo Usinagem Temperatura na interface Termopar ferramenta-peça Calibração Porta-ferramenta Machining The interface temperature Tool-workpiece thermocouple Calibration Toolholder CNPQ::ENGENHARIAS::ENGENHARIA MECANICA |
title_short |
Estudo da influência do material do porta-ferramenta sobre temperaturas de usinagem no torneamento |
title_full |
Estudo da influência do material do porta-ferramenta sobre temperaturas de usinagem no torneamento |
title_fullStr |
Estudo da influência do material do porta-ferramenta sobre temperaturas de usinagem no torneamento |
title_full_unstemmed |
Estudo da influência do material do porta-ferramenta sobre temperaturas de usinagem no torneamento |
title_sort |
Estudo da influência do material do porta-ferramenta sobre temperaturas de usinagem no torneamento |
author |
Kaminise, Almir Kazuo |
author_facet |
Kaminise, Almir Kazuo |
author_role |
author |
dc.contributor.advisor-co1.fl_str_mv |
Guimarães, Gilmar |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783806Y6 |
dc.contributor.advisor1.fl_str_mv |
Silva, Marcio Bacci da |
dc.contributor.advisor1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4785913J0 |
dc.contributor.referee1.fl_str_mv |
Silva, Rosemar Batista da |
dc.contributor.referee1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4706048P0 |
dc.contributor.referee2.fl_str_mv |
Lima, Frederico Romagnoli Silveira |
dc.contributor.referee2Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4701265P4 |
dc.contributor.referee3.fl_str_mv |
Santos, Sandro Cardoso |
dc.contributor.referee3Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4703816D9 |
dc.contributor.referee4.fl_str_mv |
Luchesi, Vanda Maria |
dc.contributor.referee4Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4762989U3 |
dc.contributor.authorLattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4782866T1 |
dc.contributor.author.fl_str_mv |
Kaminise, Almir Kazuo |
contributor_str_mv |
Guimarães, Gilmar Silva, Marcio Bacci da Silva, Rosemar Batista da Lima, Frederico Romagnoli Silveira Santos, Sandro Cardoso Luchesi, Vanda Maria |
dc.subject.por.fl_str_mv |
Usinagem Temperatura na interface Termopar ferramenta-peça Calibração Porta-ferramenta |
topic |
Usinagem Temperatura na interface Termopar ferramenta-peça Calibração Porta-ferramenta Machining The interface temperature Tool-workpiece thermocouple Calibration Toolholder CNPQ::ENGENHARIAS::ENGENHARIA MECANICA |
dc.subject.eng.fl_str_mv |
Machining The interface temperature Tool-workpiece thermocouple Calibration Toolholder |
dc.subject.cnpq.fl_str_mv |
CNPQ::ENGENHARIAS::ENGENHARIA MECANICA |
description |
The main objective of this work is the experimental investigation of the effect that the material of the toolholder has on the temperature at tool-chip interface and on the surface temperatures of the cutting tool and toolholder. The study was conducted in dry turning of gray iron with uncoated cemented carbide inserts, using the same cutting parameters. Five toolholders had been confectioned in materials having different thermal conductivity, these being: copper, brass, aluminum, stainless steel and titanium alloy. The toolholders are identical and have the constructive aspects obtained from a commercial toolholder for turning that material. The temperature at the tool-chip interface was measured using the toolworkpiece thermocouple method and the surface temperatures in the tools and the toolholders, by conventional type T thermocouples. The system was modified in order to develop an experimental procedure for the physical compensating of the secondary and parasites thermoelectric signals (emf). Also, modifications was carried out in a conventional tailstock for use in driving the emf signal between the workpiece and a stationary conductor, but without significantly altering the stiffness of the system. The tailstock was electric insulated and a mercury bearing was mounted inside it and their internal connections were turned in reference junctions at room temperature because on otherwise it could act as secondary junctions. The calibration of the tool-workpiece thermocouple was developed in the same experimental apparatus using the modifications implemented in this system. Besides the results obtained with the investigation of the effects of the toolholder material on the surface temperatures of the tool and the tool holder and on the tool-chip interface temperature, this research also presents contributions to the use and performance of the tool-workpiece thermocouple method. |
publishDate |
2012 |
dc.date.issued.fl_str_mv |
2012-12-19 |
dc.date.available.fl_str_mv |
2013-07-09 2016-06-22T18:39:38Z |
dc.date.accessioned.fl_str_mv |
2016-06-22T18:39:38Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
KAMINISE, Almir Kazuo. Study on the influence of toolholder material on the cutting temperatures in turning machining. 2012. 122 f. Tese (Doutorado em Engenharias) - Universidade Federal de Uberlândia, Uberlândia, 2012. DOI https://doi.org/10.14393/ufu.te.2012.105 |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufu.br/handle/123456789/14725 |
dc.identifier.doi.none.fl_str_mv |
https://doi.org/10.14393/ufu.te.2012.105 |
identifier_str_mv |
KAMINISE, Almir Kazuo. Study on the influence of toolholder material on the cutting temperatures in turning machining. 2012. 122 f. Tese (Doutorado em Engenharias) - Universidade Federal de Uberlândia, Uberlândia, 2012. DOI https://doi.org/10.14393/ufu.te.2012.105 |
url |
https://repositorio.ufu.br/handle/123456789/14725 https://doi.org/10.14393/ufu.te.2012.105 |
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por |
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Universidade Federal de Uberlândia |
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Programa de Pós-graduação em Engenharia Mecânica |
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UFU |
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BR |
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Engenharias |
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Universidade Federal de Uberlândia |
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