Estudo do processo de rosqueamento com macho de corte de metal duro em ferro fundido vermicular
Autor(a) principal: | |
---|---|
Data de Publicação: | 2009 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFU |
Texto Completo: | https://repositorio.ufu.br/handle/123456789/14686 |
Resumo: | The use of compacted graphite iron - CGI is growing in the automobile industry, replacing several components that usually are manufactured in grey cast iron. However, due to its poor machinability when compared to grey cast iron, the production cost sometimes is not competitive. Several research about machinability of CGI has already been developed, mainly in turning, milling and drilling operations. Little has been done with regards to tapping process, which is a more complex operation. The main objective of this work is the investigation of the performance of cemented carbide taps when cutting CGI 450 ASTM. It was is used M13x1,5 taps with four straight flutes, TiAlN coated. The tests were carried out in dry conditions and using cutting fluid applied by MQF (minimal quantity of fluid) and overhead flow. The work was split into two parts. In the first, the cutting tools were used in the production line of Tupy S.A., to produce different wear levels. The second part was developed at the laboratory, when tool wear was measured and experiments were carried out to obtain cutting forces and torque. The results showed that the cutting forces and torque depend on the cutting parameters. Analysis in the scanning electron microscope and optical microscope to determine the wear mechanisms suggested that the main wear mechanisms are adhesion and abrasion. Experiments were also carried out to study the effect of some important aspects of the process like concentricity, feed rate, thread length and tool defects. |
id |
UFU_9cb92c3b9e6f4235d76c2a2c21fea8e9 |
---|---|
oai_identifier_str |
oai:repositorio.ufu.br:123456789/14686 |
network_acronym_str |
UFU |
network_name_str |
Repositório Institucional da UFU |
repository_id_str |
|
spelling |
Estudo do processo de rosqueamento com macho de corte de metal duro em ferro fundido vermicularStudy of Tapping Operation of Compacted Graphite Iron With Cemented Carbide ToolRosqueamentoFerro fundido vermicularDesgasteTorqueUsinagemFerramentas para cortar metaisTappingCompacted graphite ironTool wearCNPQ::ENGENHARIAS::ENGENHARIA MECANICAThe use of compacted graphite iron - CGI is growing in the automobile industry, replacing several components that usually are manufactured in grey cast iron. However, due to its poor machinability when compared to grey cast iron, the production cost sometimes is not competitive. Several research about machinability of CGI has already been developed, mainly in turning, milling and drilling operations. Little has been done with regards to tapping process, which is a more complex operation. The main objective of this work is the investigation of the performance of cemented carbide taps when cutting CGI 450 ASTM. It was is used M13x1,5 taps with four straight flutes, TiAlN coated. The tests were carried out in dry conditions and using cutting fluid applied by MQF (minimal quantity of fluid) and overhead flow. The work was split into two parts. In the first, the cutting tools were used in the production line of Tupy S.A., to produce different wear levels. The second part was developed at the laboratory, when tool wear was measured and experiments were carried out to obtain cutting forces and torque. The results showed that the cutting forces and torque depend on the cutting parameters. Analysis in the scanning electron microscope and optical microscope to determine the wear mechanisms suggested that the main wear mechanisms are adhesion and abrasion. Experiments were also carried out to study the effect of some important aspects of the process like concentricity, feed rate, thread length and tool defects.Doutor em Engenharia MecânicaO ferro fundido vermicular tem obtido uma crescente aceitação na indústria automobilística, demonstrando possibilidades de utilização em diversos componentes, que normalmente são fabricados em ferro fundido cinzento. Entretanto, a maior dificuldade para a fabricação de peças em ferro fundido vermicular a preços competitivos é devido a sua baixa usinabilidade quando comparado ao ferro fundido cinzento. Diversas pesquisas sobre a usinabilidade deste material já foram desenvolvidas, principalmente para os processos de torneamento, fresamento e furação. Contudo, pouco foi feito com relação ao processo de rosqueamento interno com macho de corte. Dessa forma, o objetivo desse trabalho consiste em investigar o comportamento de machos de corte de metal duro com quatro canais retos (M13 X 1,5), revestido com TiAlN, no processo de rosqueamento de ferro fundido vermicular (CGI 450 - ASTM), nas condições de corte a seco, com fluido de corte aplicado em forma de jorro e com mínima quantidade de fluido (MQF). Os testes de vida foram realizados na indústria Tupy S.A., onde se obteve diferentes níveis de desgaste nas ferramentas; os demais testes foram realizados em laboratório, em que se avaliou o nível de desgaste em todas as ferramentas disponibilizadas para esta pesquisa e foram realizados experimentos para medição das forças (Fx, Fy e Fz) e torque durante a usinagem. As ferramentas foram analisadas através de microscopia ótica e eletrônica de varredura (MEV) para análise das formas e mecanismos de desgaste. Os resultados mostraram que os mecanismos de desgaste predominantes para as ferramentas foram adesão e abrasão. Avaliou-se também os desvios de concentricidade, influência do comprimento das roscas nas forças e no torque, taxa de avanço e o diâmetro dos pré-furos, dentre outras variáveis.Universidade Federal de UberlândiaBRPrograma de Pós-graduação em Engenharia MecânicaEngenhariasUFUReis, Alexandre Martinshttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4792268E4&dataRevisao=nullSilva, Marcio Bacci dahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4785913J0Machado, álisson Rochahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4781203T2Silva, Rosemar Batista dahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4706048P0Diniz, Anselmo Eduardohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4787257TOCoppini, Nivaldo Lemoshttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783141J7Mota, Paulo Rosa da2016-06-22T18:39:24Z2010-04-192016-06-22T18:39:24Z2009-12-21info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdfapplication/pdfMOTA, Paulo Rosa da. Study of Tapping Operation of Compacted Graphite Iron With Cemented Carbide Tool. 2009. 190 f. Tese (Doutorado em Engenharias) - Universidade Federal de Uberlândia, Uberlândia, 2009.https://repositorio.ufu.br/handle/123456789/14686porinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFUinstname:Universidade Federal de Uberlândia (UFU)instacron:UFU2021-10-19T19:31:49Zoai:repositorio.ufu.br:123456789/14686Repositório InstitucionalONGhttp://repositorio.ufu.br/oai/requestdiinf@dirbi.ufu.bropendoar:2021-10-19T19:31:49Repositório Institucional da UFU - Universidade Federal de Uberlândia (UFU)false |
dc.title.none.fl_str_mv |
Estudo do processo de rosqueamento com macho de corte de metal duro em ferro fundido vermicular Study of Tapping Operation of Compacted Graphite Iron With Cemented Carbide Tool |
title |
Estudo do processo de rosqueamento com macho de corte de metal duro em ferro fundido vermicular |
spellingShingle |
Estudo do processo de rosqueamento com macho de corte de metal duro em ferro fundido vermicular Mota, Paulo Rosa da Rosqueamento Ferro fundido vermicular Desgaste Torque Usinagem Ferramentas para cortar metais Tapping Compacted graphite iron Tool wear CNPQ::ENGENHARIAS::ENGENHARIA MECANICA |
title_short |
Estudo do processo de rosqueamento com macho de corte de metal duro em ferro fundido vermicular |
title_full |
Estudo do processo de rosqueamento com macho de corte de metal duro em ferro fundido vermicular |
title_fullStr |
Estudo do processo de rosqueamento com macho de corte de metal duro em ferro fundido vermicular |
title_full_unstemmed |
Estudo do processo de rosqueamento com macho de corte de metal duro em ferro fundido vermicular |
title_sort |
Estudo do processo de rosqueamento com macho de corte de metal duro em ferro fundido vermicular |
author |
Mota, Paulo Rosa da |
author_facet |
Mota, Paulo Rosa da |
author_role |
author |
dc.contributor.none.fl_str_mv |
Reis, Alexandre Martins http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4792268E4&dataRevisao=null Silva, Marcio Bacci da http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4785913J0 Machado, álisson Rocha http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4781203T2 Silva, Rosemar Batista da http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4706048P0 Diniz, Anselmo Eduardo http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4787257TO Coppini, Nivaldo Lemos http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783141J7 |
dc.contributor.author.fl_str_mv |
Mota, Paulo Rosa da |
dc.subject.por.fl_str_mv |
Rosqueamento Ferro fundido vermicular Desgaste Torque Usinagem Ferramentas para cortar metais Tapping Compacted graphite iron Tool wear CNPQ::ENGENHARIAS::ENGENHARIA MECANICA |
topic |
Rosqueamento Ferro fundido vermicular Desgaste Torque Usinagem Ferramentas para cortar metais Tapping Compacted graphite iron Tool wear CNPQ::ENGENHARIAS::ENGENHARIA MECANICA |
description |
The use of compacted graphite iron - CGI is growing in the automobile industry, replacing several components that usually are manufactured in grey cast iron. However, due to its poor machinability when compared to grey cast iron, the production cost sometimes is not competitive. Several research about machinability of CGI has already been developed, mainly in turning, milling and drilling operations. Little has been done with regards to tapping process, which is a more complex operation. The main objective of this work is the investigation of the performance of cemented carbide taps when cutting CGI 450 ASTM. It was is used M13x1,5 taps with four straight flutes, TiAlN coated. The tests were carried out in dry conditions and using cutting fluid applied by MQF (minimal quantity of fluid) and overhead flow. The work was split into two parts. In the first, the cutting tools were used in the production line of Tupy S.A., to produce different wear levels. The second part was developed at the laboratory, when tool wear was measured and experiments were carried out to obtain cutting forces and torque. The results showed that the cutting forces and torque depend on the cutting parameters. Analysis in the scanning electron microscope and optical microscope to determine the wear mechanisms suggested that the main wear mechanisms are adhesion and abrasion. Experiments were also carried out to study the effect of some important aspects of the process like concentricity, feed rate, thread length and tool defects. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-12-21 2010-04-19 2016-06-22T18:39:24Z 2016-06-22T18:39:24Z |
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.uri.fl_str_mv |
MOTA, Paulo Rosa da. Study of Tapping Operation of Compacted Graphite Iron With Cemented Carbide Tool. 2009. 190 f. Tese (Doutorado em Engenharias) - Universidade Federal de Uberlândia, Uberlândia, 2009. https://repositorio.ufu.br/handle/123456789/14686 |
identifier_str_mv |
MOTA, Paulo Rosa da. Study of Tapping Operation of Compacted Graphite Iron With Cemented Carbide Tool. 2009. 190 f. Tese (Doutorado em Engenharias) - Universidade Federal de Uberlândia, Uberlândia, 2009. |
url |
https://repositorio.ufu.br/handle/123456789/14686 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Uberlândia BR Programa de Pós-graduação em Engenharia Mecânica Engenharias UFU |
publisher.none.fl_str_mv |
Universidade Federal de Uberlândia BR Programa de Pós-graduação em Engenharia Mecânica Engenharias UFU |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFU instname:Universidade Federal de Uberlândia (UFU) instacron:UFU |
instname_str |
Universidade Federal de Uberlândia (UFU) |
instacron_str |
UFU |
institution |
UFU |
reponame_str |
Repositório Institucional da UFU |
collection |
Repositório Institucional da UFU |
repository.name.fl_str_mv |
Repositório Institucional da UFU - Universidade Federal de Uberlândia (UFU) |
repository.mail.fl_str_mv |
diinf@dirbi.ufu.br |
_version_ |
1805569660884615168 |