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A Study on Drilling High-Strength CFRP Laminates: Frictional Heat and Cutting Temperature

High-strength carbon fiber reinforced polymer (CFRP) composites have become popular materials to be utilized in the aerospace and automotive industries, due to their unique and superior mechanical properties. An understanding of cutting temperatures is rather important when dealing with high-strengt...

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Autores principales: Xu, Jinyang, Li, Chao, Dang, Jiaqiang, El Mansori, Mohamed, Ren, Fei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6316996/
https://www.ncbi.nlm.nih.gov/pubmed/30477257
http://dx.doi.org/10.3390/ma11122366
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author Xu, Jinyang
Li, Chao
Dang, Jiaqiang
El Mansori, Mohamed
Ren, Fei
author_facet Xu, Jinyang
Li, Chao
Dang, Jiaqiang
El Mansori, Mohamed
Ren, Fei
author_sort Xu, Jinyang
collection PubMed
description High-strength carbon fiber reinforced polymer (CFRP) composites have become popular materials to be utilized in the aerospace and automotive industries, due to their unique and superior mechanical properties. An understanding of cutting temperatures is rather important when dealing with high-strength CFRPs, since machining defects are likely to occur because of high temperatures (especially in the semi-closed drilling process). The friction behavior at the flank tool-workpiece interface when drilling CFRPs plays a vital role in the heat generation, which still remains poorly understood. The aim of this paper is to address the friction-induced heat based on two specially-designed tribometers to simulate different sliding velocities, similar to those occurring along the flank tool-work interface in drilling. The elastic recovery effect during the drilling process was considered during the tribo-drilling experiments. The drilling temperatures were calculated by the analytical model and verified by the in-situ experimental results gained using the embedded thermocouples into the drills. The results indicate that the magnitudes of the interfacial friction coefficients between the cemented carbide tool and the CFRP specimen are within the range between 0.135–0.168 under the examined conditions. Additionally, the friction caused by the plastic deformation and elastic recovery effects plays a dominant role when the sliding velocity increases. The findings in this paper point out the impact of the friction-induced heat and cutting parameters on the overall drilling temperature.
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spelling pubmed-63169962019-01-08 A Study on Drilling High-Strength CFRP Laminates: Frictional Heat and Cutting Temperature Xu, Jinyang Li, Chao Dang, Jiaqiang El Mansori, Mohamed Ren, Fei Materials (Basel) Article High-strength carbon fiber reinforced polymer (CFRP) composites have become popular materials to be utilized in the aerospace and automotive industries, due to their unique and superior mechanical properties. An understanding of cutting temperatures is rather important when dealing with high-strength CFRPs, since machining defects are likely to occur because of high temperatures (especially in the semi-closed drilling process). The friction behavior at the flank tool-workpiece interface when drilling CFRPs plays a vital role in the heat generation, which still remains poorly understood. The aim of this paper is to address the friction-induced heat based on two specially-designed tribometers to simulate different sliding velocities, similar to those occurring along the flank tool-work interface in drilling. The elastic recovery effect during the drilling process was considered during the tribo-drilling experiments. The drilling temperatures were calculated by the analytical model and verified by the in-situ experimental results gained using the embedded thermocouples into the drills. The results indicate that the magnitudes of the interfacial friction coefficients between the cemented carbide tool and the CFRP specimen are within the range between 0.135–0.168 under the examined conditions. Additionally, the friction caused by the plastic deformation and elastic recovery effects plays a dominant role when the sliding velocity increases. The findings in this paper point out the impact of the friction-induced heat and cutting parameters on the overall drilling temperature. MDPI 2018-11-25 /pmc/articles/PMC6316996/ /pubmed/30477257 http://dx.doi.org/10.3390/ma11122366 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Xu, Jinyang
Li, Chao
Dang, Jiaqiang
El Mansori, Mohamed
Ren, Fei
A Study on Drilling High-Strength CFRP Laminates: Frictional Heat and Cutting Temperature
title A Study on Drilling High-Strength CFRP Laminates: Frictional Heat and Cutting Temperature
title_full A Study on Drilling High-Strength CFRP Laminates: Frictional Heat and Cutting Temperature
title_fullStr A Study on Drilling High-Strength CFRP Laminates: Frictional Heat and Cutting Temperature
title_full_unstemmed A Study on Drilling High-Strength CFRP Laminates: Frictional Heat and Cutting Temperature
title_short A Study on Drilling High-Strength CFRP Laminates: Frictional Heat and Cutting Temperature
title_sort study on drilling high-strength cfrp laminates: frictional heat and cutting temperature
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6316996/
https://www.ncbi.nlm.nih.gov/pubmed/30477257
http://dx.doi.org/10.3390/ma11122366
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