Comparative Analysis of Different Cutting Milling Strategies Applied in Duplex Stainless Steel
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/101325 https://doi.org/10.1016/j.promfg.2020.04.132 |
Resumo: | It is well known that the duplex stainless steels are considered to be difficult-to-machine because of its high toughness, low thermal conductivity, and high degree of work hardening. When machining this type of materials, the tools presents an irregular wear and often occur a built-up edge (BLUE) [1]. This work studies the influence of cutting milling strategy in the machinability of these alloys, comparing conventional and trochoidal toolpaths, milled with a tool that have interchangeable inserts coated with AlTiN. Concerning to the cutting parameters, the values recommended by the tool manufacturer (90-120 m/min.) were applied to the conventional milling strategy, while for the trochoidal milling strategy were applied higher cutting speeds, in a range of 120 to 300 m/min. For both strategies, the results shown that the tool edge damage is characterized by a progressive development of a flank wear, followed by chipping phenomenon, that usually first appear localized in the region of the cutting edge where the contact with the chip ends. As the machining continues, a non-uniform chipping appears along the cutting edge. For the conventional milling strategy, the best results were obtained for the cutting speed of 120 m/min, with a material removal rate of 17,16 cm3/min. and a tool life of 20 minutes. For the trochoidal strategy, it is possible to double the cutting speed (240 m/min), maintaining the same tool life time (20 min.), and increasing the material removal rate up to 23,66 cm3/min. |
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Comparative Analysis of Different Cutting Milling Strategies Applied in Duplex Stainless SteelDuplex Stainless SteelsConventional Trochoidal MillingTool LifeMaterial Removal RateTool WearIt is well known that the duplex stainless steels are considered to be difficult-to-machine because of its high toughness, low thermal conductivity, and high degree of work hardening. When machining this type of materials, the tools presents an irregular wear and often occur a built-up edge (BLUE) [1]. This work studies the influence of cutting milling strategy in the machinability of these alloys, comparing conventional and trochoidal toolpaths, milled with a tool that have interchangeable inserts coated with AlTiN. Concerning to the cutting parameters, the values recommended by the tool manufacturer (90-120 m/min.) were applied to the conventional milling strategy, while for the trochoidal milling strategy were applied higher cutting speeds, in a range of 120 to 300 m/min. For both strategies, the results shown that the tool edge damage is characterized by a progressive development of a flank wear, followed by chipping phenomenon, that usually first appear localized in the region of the cutting edge where the contact with the chip ends. As the machining continues, a non-uniform chipping appears along the cutting edge. For the conventional milling strategy, the best results were obtained for the cutting speed of 120 m/min, with a material removal rate of 17,16 cm3/min. and a tool life of 20 minutes. For the trochoidal strategy, it is possible to double the cutting speed (240 m/min), maintaining the same tool life time (20 min.), and increasing the material removal rate up to 23,66 cm3/min.2020info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/101325http://hdl.handle.net/10316/101325https://doi.org/10.1016/j.promfg.2020.04.132eng23519789Amaro, PauloFerreira, PedroSimões, Fernandoinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-08-23T20:39:16Zoai:estudogeral.uc.pt:10316/101325Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:18:32.532454Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Comparative Analysis of Different Cutting Milling Strategies Applied in Duplex Stainless Steel |
title |
Comparative Analysis of Different Cutting Milling Strategies Applied in Duplex Stainless Steel |
spellingShingle |
Comparative Analysis of Different Cutting Milling Strategies Applied in Duplex Stainless Steel Amaro, Paulo Duplex Stainless Steels Conventional Trochoidal Milling Tool Life Material Removal Rate Tool Wear |
title_short |
Comparative Analysis of Different Cutting Milling Strategies Applied in Duplex Stainless Steel |
title_full |
Comparative Analysis of Different Cutting Milling Strategies Applied in Duplex Stainless Steel |
title_fullStr |
Comparative Analysis of Different Cutting Milling Strategies Applied in Duplex Stainless Steel |
title_full_unstemmed |
Comparative Analysis of Different Cutting Milling Strategies Applied in Duplex Stainless Steel |
title_sort |
Comparative Analysis of Different Cutting Milling Strategies Applied in Duplex Stainless Steel |
author |
Amaro, Paulo |
author_facet |
Amaro, Paulo Ferreira, Pedro Simões, Fernando |
author_role |
author |
author2 |
Ferreira, Pedro Simões, Fernando |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Amaro, Paulo Ferreira, Pedro Simões, Fernando |
dc.subject.por.fl_str_mv |
Duplex Stainless Steels Conventional Trochoidal Milling Tool Life Material Removal Rate Tool Wear |
topic |
Duplex Stainless Steels Conventional Trochoidal Milling Tool Life Material Removal Rate Tool Wear |
description |
It is well known that the duplex stainless steels are considered to be difficult-to-machine because of its high toughness, low thermal conductivity, and high degree of work hardening. When machining this type of materials, the tools presents an irregular wear and often occur a built-up edge (BLUE) [1]. This work studies the influence of cutting milling strategy in the machinability of these alloys, comparing conventional and trochoidal toolpaths, milled with a tool that have interchangeable inserts coated with AlTiN. Concerning to the cutting parameters, the values recommended by the tool manufacturer (90-120 m/min.) were applied to the conventional milling strategy, while for the trochoidal milling strategy were applied higher cutting speeds, in a range of 120 to 300 m/min. For both strategies, the results shown that the tool edge damage is characterized by a progressive development of a flank wear, followed by chipping phenomenon, that usually first appear localized in the region of the cutting edge where the contact with the chip ends. As the machining continues, a non-uniform chipping appears along the cutting edge. For the conventional milling strategy, the best results were obtained for the cutting speed of 120 m/min, with a material removal rate of 17,16 cm3/min. and a tool life of 20 minutes. For the trochoidal strategy, it is possible to double the cutting speed (240 m/min), maintaining the same tool life time (20 min.), and increasing the material removal rate up to 23,66 cm3/min. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10316/101325 http://hdl.handle.net/10316/101325 https://doi.org/10.1016/j.promfg.2020.04.132 |
url |
http://hdl.handle.net/10316/101325 https://doi.org/10.1016/j.promfg.2020.04.132 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
23519789 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799134079778553856 |