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Between-the-Holes Cryogenic Cooling of the Tool in Hole-Making of Ti-6Al-4V and CFRP
Lightweight materials are finding plentiful applications in various engineering sectors due to their high strength-to-weight ratios. Hole-making is an inevitable requirement for their structural applications, which is often marred by thermal damages of the drill causing unacceptable shortening of to...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7914485/ https://www.ncbi.nlm.nih.gov/pubmed/33567552 http://dx.doi.org/10.3390/ma14040795 |
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author | Iqbal, Asif Zhao, Guolong Zaini, Juliana Gupta, Munish Kumar Jamil, Muhammad He, Ning Nauman, Malik Muhammad Mikolajczyk, Tadeusz Pimenov, Danil Yurievich |
author_facet | Iqbal, Asif Zhao, Guolong Zaini, Juliana Gupta, Munish Kumar Jamil, Muhammad He, Ning Nauman, Malik Muhammad Mikolajczyk, Tadeusz Pimenov, Danil Yurievich |
author_sort | Iqbal, Asif |
collection | PubMed |
description | Lightweight materials are finding plentiful applications in various engineering sectors due to their high strength-to-weight ratios. Hole-making is an inevitable requirement for their structural applications, which is often marred by thermal damages of the drill causing unacceptable shortening of tool life. Efficient cooling of the tool is a prime requirement for enhancing the process viability. The current work presents a novel technique of cooling only the twist drill between drilling of holes with no effect of the applied cryogenic coolant transferred to the work material. The technique is applied in the drilling of two commonly used high-strength lightweight materials: carbon fibers reinforced polymer (CFRP) and an alloy of titanium (Ti-6Al-4V). The efficacy of the cooling approach is compared with those of conventionally applied continuous cryogenic cooling and no-cooling. The effectiveness is quantified in terms of tool wear, thrust force, hole quality, specific cutting energy, productivity, and consumption of the cryogenic fluid. The experimental work leads to a finding that between-the-holes cryogenic cooling possesses a rich potential in curbing tool wear, reducing thrust force and specific energy consumption, and improving hole quality in drilling of CFRP. Regarding the titanium alloy, it yields a much better surface finish and lesser consumption of specific cutting energy. |
format | Online Article Text |
id | pubmed-7914485 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-79144852021-03-01 Between-the-Holes Cryogenic Cooling of the Tool in Hole-Making of Ti-6Al-4V and CFRP Iqbal, Asif Zhao, Guolong Zaini, Juliana Gupta, Munish Kumar Jamil, Muhammad He, Ning Nauman, Malik Muhammad Mikolajczyk, Tadeusz Pimenov, Danil Yurievich Materials (Basel) Article Lightweight materials are finding plentiful applications in various engineering sectors due to their high strength-to-weight ratios. Hole-making is an inevitable requirement for their structural applications, which is often marred by thermal damages of the drill causing unacceptable shortening of tool life. Efficient cooling of the tool is a prime requirement for enhancing the process viability. The current work presents a novel technique of cooling only the twist drill between drilling of holes with no effect of the applied cryogenic coolant transferred to the work material. The technique is applied in the drilling of two commonly used high-strength lightweight materials: carbon fibers reinforced polymer (CFRP) and an alloy of titanium (Ti-6Al-4V). The efficacy of the cooling approach is compared with those of conventionally applied continuous cryogenic cooling and no-cooling. The effectiveness is quantified in terms of tool wear, thrust force, hole quality, specific cutting energy, productivity, and consumption of the cryogenic fluid. The experimental work leads to a finding that between-the-holes cryogenic cooling possesses a rich potential in curbing tool wear, reducing thrust force and specific energy consumption, and improving hole quality in drilling of CFRP. Regarding the titanium alloy, it yields a much better surface finish and lesser consumption of specific cutting energy. MDPI 2021-02-08 /pmc/articles/PMC7914485/ /pubmed/33567552 http://dx.doi.org/10.3390/ma14040795 Text en © 2021 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 Iqbal, Asif Zhao, Guolong Zaini, Juliana Gupta, Munish Kumar Jamil, Muhammad He, Ning Nauman, Malik Muhammad Mikolajczyk, Tadeusz Pimenov, Danil Yurievich Between-the-Holes Cryogenic Cooling of the Tool in Hole-Making of Ti-6Al-4V and CFRP |
title | Between-the-Holes Cryogenic Cooling of the Tool in Hole-Making of Ti-6Al-4V and CFRP |
title_full | Between-the-Holes Cryogenic Cooling of the Tool in Hole-Making of Ti-6Al-4V and CFRP |
title_fullStr | Between-the-Holes Cryogenic Cooling of the Tool in Hole-Making of Ti-6Al-4V and CFRP |
title_full_unstemmed | Between-the-Holes Cryogenic Cooling of the Tool in Hole-Making of Ti-6Al-4V and CFRP |
title_short | Between-the-Holes Cryogenic Cooling of the Tool in Hole-Making of Ti-6Al-4V and CFRP |
title_sort | between-the-holes cryogenic cooling of the tool in hole-making of ti-6al-4v and cfrp |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7914485/ https://www.ncbi.nlm.nih.gov/pubmed/33567552 http://dx.doi.org/10.3390/ma14040795 |
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