Towards understanding the hole making performance and chip formation mechanism of thermoplastic carbon fibre/polyetherketoneketone (CF/PEKK) composite
Autor(a) principal: | |
---|---|
Data de Publicação: | 2022 |
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/10174/32901 https://doi.org/10.1016/j.compositesb.2022.109752 |
Resumo: | Here, we report the first study on the hole making performance of thermoplastic carbon fibre/polyetherketoneketone (CF/PEKK) composite. Different hole making methods (conventional drilling vs. helical milling) have been compared and the effect of different feed rates has been investigated. The effect of thermal-mechanical interaction on the resulting hole damage has been elucidated for the first time for carbon fibre reinforced thermoplastics (CFRTPs) hole making. In the material science dimension, advanced material characterization techniques have been deployed to reveal the material removal mechanisms at microscopic scale and unveil the underlying material structural change at a molecular level. Results show that the delamination damage of CF/PEKK is a result of the thermal-mechanical interaction. For conventional drilling, the high machining temperature (at low feed rate [removed]0.1 mm/rev. In contrast, helical milling generates a much higher machining temperature which plays a more predominant role in the associated delamination damage. Microstructural analysis shows that all the hole surfaces feature matrix smearing, as a result of combined in-plane shear stress and high machining temperature. Conventional drilling leads to more severe hole wall microstructural damage (matrix loss and surface cavity) as compared to helical milling. Finally, thermal analysis reveals that the hole making process has led to significantly increased crystallinity in the PEKK matrix as a result of the strain-induced crystallization under the combined effect of shear stress and high temperature. |
id |
RCAP_f7105956d63a6395d49951edf786ae8d |
---|---|
oai_identifier_str |
oai:dspace.uevora.pt:10174/32901 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Towards understanding the hole making performance and chip formation mechanism of thermoplastic carbon fibre/polyetherketoneketone (CF/PEKK) compositeHere, we report the first study on the hole making performance of thermoplastic carbon fibre/polyetherketoneketone (CF/PEKK) composite. Different hole making methods (conventional drilling vs. helical milling) have been compared and the effect of different feed rates has been investigated. The effect of thermal-mechanical interaction on the resulting hole damage has been elucidated for the first time for carbon fibre reinforced thermoplastics (CFRTPs) hole making. In the material science dimension, advanced material characterization techniques have been deployed to reveal the material removal mechanisms at microscopic scale and unveil the underlying material structural change at a molecular level. Results show that the delamination damage of CF/PEKK is a result of the thermal-mechanical interaction. For conventional drilling, the high machining temperature (at low feed rate [removed]0.1 mm/rev. In contrast, helical milling generates a much higher machining temperature which plays a more predominant role in the associated delamination damage. Microstructural analysis shows that all the hole surfaces feature matrix smearing, as a result of combined in-plane shear stress and high machining temperature. Conventional drilling leads to more severe hole wall microstructural damage (matrix loss and surface cavity) as compared to helical milling. Finally, thermal analysis reveals that the hole making process has led to significantly increased crystallinity in the PEKK matrix as a result of the strain-induced crystallization under the combined effect of shear stress and high temperature.2022-12-27T17:01:13Z2022-12-272022-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/32901https://doi.org/10.1016/j.compositesb.2022.109752http://hdl.handle.net/10174/32901https://doi.org/10.1016/j.compositesb.2022.109752engndndndndndndndGe, JiaCatalanotti, GiuseppeFalzon, Brian G.McClelland, JohnHiggins, ColmJin, YanSun, Daninfo: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:RCAAP2024-01-03T19:34:00Zoai:dspace.uevora.pt:10174/32901Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:21:48.530164Repositório 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 |
Towards understanding the hole making performance and chip formation mechanism of thermoplastic carbon fibre/polyetherketoneketone (CF/PEKK) composite |
title |
Towards understanding the hole making performance and chip formation mechanism of thermoplastic carbon fibre/polyetherketoneketone (CF/PEKK) composite |
spellingShingle |
Towards understanding the hole making performance and chip formation mechanism of thermoplastic carbon fibre/polyetherketoneketone (CF/PEKK) composite Ge, Jia |
title_short |
Towards understanding the hole making performance and chip formation mechanism of thermoplastic carbon fibre/polyetherketoneketone (CF/PEKK) composite |
title_full |
Towards understanding the hole making performance and chip formation mechanism of thermoplastic carbon fibre/polyetherketoneketone (CF/PEKK) composite |
title_fullStr |
Towards understanding the hole making performance and chip formation mechanism of thermoplastic carbon fibre/polyetherketoneketone (CF/PEKK) composite |
title_full_unstemmed |
Towards understanding the hole making performance and chip formation mechanism of thermoplastic carbon fibre/polyetherketoneketone (CF/PEKK) composite |
title_sort |
Towards understanding the hole making performance and chip formation mechanism of thermoplastic carbon fibre/polyetherketoneketone (CF/PEKK) composite |
author |
Ge, Jia |
author_facet |
Ge, Jia Catalanotti, Giuseppe Falzon, Brian G. McClelland, John Higgins, Colm Jin, Yan Sun, Dan |
author_role |
author |
author2 |
Catalanotti, Giuseppe Falzon, Brian G. McClelland, John Higgins, Colm Jin, Yan Sun, Dan |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Ge, Jia Catalanotti, Giuseppe Falzon, Brian G. McClelland, John Higgins, Colm Jin, Yan Sun, Dan |
description |
Here, we report the first study on the hole making performance of thermoplastic carbon fibre/polyetherketoneketone (CF/PEKK) composite. Different hole making methods (conventional drilling vs. helical milling) have been compared and the effect of different feed rates has been investigated. The effect of thermal-mechanical interaction on the resulting hole damage has been elucidated for the first time for carbon fibre reinforced thermoplastics (CFRTPs) hole making. In the material science dimension, advanced material characterization techniques have been deployed to reveal the material removal mechanisms at microscopic scale and unveil the underlying material structural change at a molecular level. Results show that the delamination damage of CF/PEKK is a result of the thermal-mechanical interaction. For conventional drilling, the high machining temperature (at low feed rate [removed]0.1 mm/rev. In contrast, helical milling generates a much higher machining temperature which plays a more predominant role in the associated delamination damage. Microstructural analysis shows that all the hole surfaces feature matrix smearing, as a result of combined in-plane shear stress and high machining temperature. Conventional drilling leads to more severe hole wall microstructural damage (matrix loss and surface cavity) as compared to helical milling. Finally, thermal analysis reveals that the hole making process has led to significantly increased crystallinity in the PEKK matrix as a result of the strain-induced crystallization under the combined effect of shear stress and high temperature. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-12-27T17:01:13Z 2022-12-27 2022-01-01T00:00:00Z |
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/10174/32901 https://doi.org/10.1016/j.compositesb.2022.109752 http://hdl.handle.net/10174/32901 https://doi.org/10.1016/j.compositesb.2022.109752 |
url |
http://hdl.handle.net/10174/32901 https://doi.org/10.1016/j.compositesb.2022.109752 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
nd nd nd nd nd nd nd |
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 |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
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 |
|
_version_ |
1799136699881619456 |