Material model assessment in Ti6Al4V machining simulations with FEM
Autor(a) principal: | |
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Data de Publicação: | 2021 |
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/10773/30733 |
Resumo: | Ti6Al4V alloy is a well-known difficult-to-cut material used in different industrial applications, to achieve the expected component quality, proper definition and control of the machining process parameters must be accomplished. To address this problem, simulations with finite element method (FEM) seem to be an interesting engineering tool to model and optimize machining processes. Nevertheless, the model capability in capturing the behaviour observed in real machining processes is associated with the definition of the model and parameters that describe the workpiece flow stress. This contribution aimed to study the performance of built-in AdvantEdge-2DTMmaterial laws applied in Ti6Al4V orthogonal cutting simulations under dry conditions. The numerical models were created under three levels of cutting speed, a constant feed rate and depth-of-cut, a variable tool rake angle (of 20° and -6°/0 °), but also using four Ti6Al4V constitutive laws, namely, one suggested in AdvantEdgeTM library, a Johnson- Cook (JC) model, a Power law (PL) and a PL coupled with ductile damage model. Experimental results were used to assess the numerical models’ accuracy in predicting the machining forces and metal chips. Satisfactory results regarding the machining forces prediction were achieved with all material laws, yet when the damage criterion was coupled with the constitutive laws (PLD and AE standard material law), the simulations were also were able to achieve the expected chip morphology (serrated metal chips). Keywords: Ti6Al4V, AdvantEdge, orthogonal cutting, power law, Johnson-Cook material model, machining forces, saw-tooth chips. |
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Material model assessment in Ti6Al4V machining simulations with FEMTi6Al4VAdvantEdgeOrthogonal cuttingPower lawJohnson-Cook material modelMachining forcesSaw-tooth chipsTi6Al4V alloy is a well-known difficult-to-cut material used in different industrial applications, to achieve the expected component quality, proper definition and control of the machining process parameters must be accomplished. To address this problem, simulations with finite element method (FEM) seem to be an interesting engineering tool to model and optimize machining processes. Nevertheless, the model capability in capturing the behaviour observed in real machining processes is associated with the definition of the model and parameters that describe the workpiece flow stress. This contribution aimed to study the performance of built-in AdvantEdge-2DTMmaterial laws applied in Ti6Al4V orthogonal cutting simulations under dry conditions. The numerical models were created under three levels of cutting speed, a constant feed rate and depth-of-cut, a variable tool rake angle (of 20° and -6°/0 °), but also using four Ti6Al4V constitutive laws, namely, one suggested in AdvantEdgeTM library, a Johnson- Cook (JC) model, a Power law (PL) and a PL coupled with ductile damage model. Experimental results were used to assess the numerical models’ accuracy in predicting the machining forces and metal chips. Satisfactory results regarding the machining forces prediction were achieved with all material laws, yet when the damage criterion was coupled with the constitutive laws (PLD and AE standard material law), the simulations were also were able to achieve the expected chip morphology (serrated metal chips). Keywords: Ti6Al4V, AdvantEdge, orthogonal cutting, power law, Johnson-Cook material model, machining forces, saw-tooth chips.Sage2021-03-03T18:36:49Z2021-02-18T00:00:00Z2021-02-18info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/30733eng0954-406210.1177/0954406221994883Carvalho, Sílvia RibeiroHorovistiz, AnaDavim, J. Pauloinfo: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:RCAAP2024-02-22T11:59:22Zoai:ria.ua.pt:10773/30733Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:02:45.311440Repositório 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 |
Material model assessment in Ti6Al4V machining simulations with FEM |
title |
Material model assessment in Ti6Al4V machining simulations with FEM |
spellingShingle |
Material model assessment in Ti6Al4V machining simulations with FEM Carvalho, Sílvia Ribeiro Ti6Al4V AdvantEdge Orthogonal cutting Power law Johnson-Cook material model Machining forces Saw-tooth chips |
title_short |
Material model assessment in Ti6Al4V machining simulations with FEM |
title_full |
Material model assessment in Ti6Al4V machining simulations with FEM |
title_fullStr |
Material model assessment in Ti6Al4V machining simulations with FEM |
title_full_unstemmed |
Material model assessment in Ti6Al4V machining simulations with FEM |
title_sort |
Material model assessment in Ti6Al4V machining simulations with FEM |
author |
Carvalho, Sílvia Ribeiro |
author_facet |
Carvalho, Sílvia Ribeiro Horovistiz, Ana Davim, J. Paulo |
author_role |
author |
author2 |
Horovistiz, Ana Davim, J. Paulo |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Carvalho, Sílvia Ribeiro Horovistiz, Ana Davim, J. Paulo |
dc.subject.por.fl_str_mv |
Ti6Al4V AdvantEdge Orthogonal cutting Power law Johnson-Cook material model Machining forces Saw-tooth chips |
topic |
Ti6Al4V AdvantEdge Orthogonal cutting Power law Johnson-Cook material model Machining forces Saw-tooth chips |
description |
Ti6Al4V alloy is a well-known difficult-to-cut material used in different industrial applications, to achieve the expected component quality, proper definition and control of the machining process parameters must be accomplished. To address this problem, simulations with finite element method (FEM) seem to be an interesting engineering tool to model and optimize machining processes. Nevertheless, the model capability in capturing the behaviour observed in real machining processes is associated with the definition of the model and parameters that describe the workpiece flow stress. This contribution aimed to study the performance of built-in AdvantEdge-2DTMmaterial laws applied in Ti6Al4V orthogonal cutting simulations under dry conditions. The numerical models were created under three levels of cutting speed, a constant feed rate and depth-of-cut, a variable tool rake angle (of 20° and -6°/0 °), but also using four Ti6Al4V constitutive laws, namely, one suggested in AdvantEdgeTM library, a Johnson- Cook (JC) model, a Power law (PL) and a PL coupled with ductile damage model. Experimental results were used to assess the numerical models’ accuracy in predicting the machining forces and metal chips. Satisfactory results regarding the machining forces prediction were achieved with all material laws, yet when the damage criterion was coupled with the constitutive laws (PLD and AE standard material law), the simulations were also were able to achieve the expected chip morphology (serrated metal chips). Keywords: Ti6Al4V, AdvantEdge, orthogonal cutting, power law, Johnson-Cook material model, machining forces, saw-tooth chips. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-03-03T18:36:49Z 2021-02-18T00:00:00Z 2021-02-18 |
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/10773/30733 |
url |
http://hdl.handle.net/10773/30733 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0954-4062 10.1177/0954406221994883 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Sage |
publisher.none.fl_str_mv |
Sage |
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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 |
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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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1799137683057934336 |