Cargando…

Experimental Study of Drilling Temperature, Geometrical Errors and Thermal Expansion of Drill on Hole Accuracy When Drilling CFRP/Ti Alloy Stacks

The drilling of holes in CFRP/Ti (Carbon Fiber-Reinforced Plastic/Titanium alloy) alloy stacks is one of the frequently used mechanical operations during the manufacturing of fastening assemblies in temporary civil aircraft. A combination of inhomogeneous behavior and poor machinability of CFRP/Ti a...

Descripción completa

Detalles Bibliográficos
Autores principales: Kolesnyk, Vitalii, Peterka, Jozef, Kuruc, Marcel, Šimna, Vladimír, Moravčíková, Jana, Vopát, Tomáš, Lisovenko, Dmytro
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7411704/
https://www.ncbi.nlm.nih.gov/pubmed/32698544
http://dx.doi.org/10.3390/ma13143232
_version_ 1783568439863934976
author Kolesnyk, Vitalii
Peterka, Jozef
Kuruc, Marcel
Šimna, Vladimír
Moravčíková, Jana
Vopát, Tomáš
Lisovenko, Dmytro
author_facet Kolesnyk, Vitalii
Peterka, Jozef
Kuruc, Marcel
Šimna, Vladimír
Moravčíková, Jana
Vopát, Tomáš
Lisovenko, Dmytro
author_sort Kolesnyk, Vitalii
collection PubMed
description The drilling of holes in CFRP/Ti (Carbon Fiber-Reinforced Plastic/Titanium alloy) alloy stacks is one of the frequently used mechanical operations during the manufacturing of fastening assemblies in temporary civil aircraft. A combination of inhomogeneous behavior and poor machinability of CFRP/Ti alloy stacks in one short drilling brought challenges to the manufacturing community. The impact of the drilling temperature and time delay factor under various cutting conditions on hole accuracy when machining CFRP/Ti alloy stacks is poorly studied. In this paper, the drilling temperature, the phenomenon of thermal expansion of the drill tool, and hole accuracy are investigated. An experimental study was carried out using thermocouples, the coordinate measuring machine method, and finite element analysis. The results showed that the time delay factor varied from 5 (s) to 120 (s), influences the thermal-dependent properties of CFRP, and leads to an increase in hole roundness. Additionally, the thermal expansion of the drill significantly contributes to the deviation of the hole diameter in Ti alloy.
format Online
Article
Text
id pubmed-7411704
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-74117042020-08-25 Experimental Study of Drilling Temperature, Geometrical Errors and Thermal Expansion of Drill on Hole Accuracy When Drilling CFRP/Ti Alloy Stacks Kolesnyk, Vitalii Peterka, Jozef Kuruc, Marcel Šimna, Vladimír Moravčíková, Jana Vopát, Tomáš Lisovenko, Dmytro Materials (Basel) Article The drilling of holes in CFRP/Ti (Carbon Fiber-Reinforced Plastic/Titanium alloy) alloy stacks is one of the frequently used mechanical operations during the manufacturing of fastening assemblies in temporary civil aircraft. A combination of inhomogeneous behavior and poor machinability of CFRP/Ti alloy stacks in one short drilling brought challenges to the manufacturing community. The impact of the drilling temperature and time delay factor under various cutting conditions on hole accuracy when machining CFRP/Ti alloy stacks is poorly studied. In this paper, the drilling temperature, the phenomenon of thermal expansion of the drill tool, and hole accuracy are investigated. An experimental study was carried out using thermocouples, the coordinate measuring machine method, and finite element analysis. The results showed that the time delay factor varied from 5 (s) to 120 (s), influences the thermal-dependent properties of CFRP, and leads to an increase in hole roundness. Additionally, the thermal expansion of the drill significantly contributes to the deviation of the hole diameter in Ti alloy. MDPI 2020-07-20 /pmc/articles/PMC7411704/ /pubmed/32698544 http://dx.doi.org/10.3390/ma13143232 Text en © 2020 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
Kolesnyk, Vitalii
Peterka, Jozef
Kuruc, Marcel
Šimna, Vladimír
Moravčíková, Jana
Vopát, Tomáš
Lisovenko, Dmytro
Experimental Study of Drilling Temperature, Geometrical Errors and Thermal Expansion of Drill on Hole Accuracy When Drilling CFRP/Ti Alloy Stacks
title Experimental Study of Drilling Temperature, Geometrical Errors and Thermal Expansion of Drill on Hole Accuracy When Drilling CFRP/Ti Alloy Stacks
title_full Experimental Study of Drilling Temperature, Geometrical Errors and Thermal Expansion of Drill on Hole Accuracy When Drilling CFRP/Ti Alloy Stacks
title_fullStr Experimental Study of Drilling Temperature, Geometrical Errors and Thermal Expansion of Drill on Hole Accuracy When Drilling CFRP/Ti Alloy Stacks
title_full_unstemmed Experimental Study of Drilling Temperature, Geometrical Errors and Thermal Expansion of Drill on Hole Accuracy When Drilling CFRP/Ti Alloy Stacks
title_short Experimental Study of Drilling Temperature, Geometrical Errors and Thermal Expansion of Drill on Hole Accuracy When Drilling CFRP/Ti Alloy Stacks
title_sort experimental study of drilling temperature, geometrical errors and thermal expansion of drill on hole accuracy when drilling cfrp/ti alloy stacks
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7411704/
https://www.ncbi.nlm.nih.gov/pubmed/32698544
http://dx.doi.org/10.3390/ma13143232
work_keys_str_mv AT kolesnykvitalii experimentalstudyofdrillingtemperaturegeometricalerrorsandthermalexpansionofdrillonholeaccuracywhendrillingcfrptialloystacks
AT peterkajozef experimentalstudyofdrillingtemperaturegeometricalerrorsandthermalexpansionofdrillonholeaccuracywhendrillingcfrptialloystacks
AT kurucmarcel experimentalstudyofdrillingtemperaturegeometricalerrorsandthermalexpansionofdrillonholeaccuracywhendrillingcfrptialloystacks
AT simnavladimir experimentalstudyofdrillingtemperaturegeometricalerrorsandthermalexpansionofdrillonholeaccuracywhendrillingcfrptialloystacks
AT moravcikovajana experimentalstudyofdrillingtemperaturegeometricalerrorsandthermalexpansionofdrillonholeaccuracywhendrillingcfrptialloystacks
AT vopattomas experimentalstudyofdrillingtemperaturegeometricalerrorsandthermalexpansionofdrillonholeaccuracywhendrillingcfrptialloystacks
AT lisovenkodmytro experimentalstudyofdrillingtemperaturegeometricalerrorsandthermalexpansionofdrillonholeaccuracywhendrillingcfrptialloystacks