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Characterization of a New Dry Drill-Milling Process of Carbon Fibre Reinforced Polymer Laminates
Carbon Fibre Reinforced Polymer (CFRP) composites are widely used in aerospace applications that require severe quality parameters. To simplify the assembly operations and reduce the associated costs, the current trend in industry is to optimize the drilling processes. However, the machining of CFRP...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6120020/ https://www.ncbi.nlm.nih.gov/pubmed/30126200 http://dx.doi.org/10.3390/ma11081470 |
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author | Caggiano, Alessandra Improta, Ilaria Nele, Luigi |
author_facet | Caggiano, Alessandra Improta, Ilaria Nele, Luigi |
author_sort | Caggiano, Alessandra |
collection | PubMed |
description | Carbon Fibre Reinforced Polymer (CFRP) composites are widely used in aerospace applications that require severe quality parameters. To simplify the assembly operations and reduce the associated costs, the current trend in industry is to optimize the drilling processes. However, the machining of CFRP composites is very challenging compared with metals, and several defect types can be generated by drilling. The emerging process of orbital drilling can greatly reduce the defects associated with the traditional drilling of CFRP, but it is a more complex process requiring careful process parameters selection and it does not allow for the complete elimination of the thrust force responsible for delamination damage. As an alternative to traditional and orbital drilling, this work presents a new hole making process, where the hole is realized by a combination of drilling and peripheral milling performed using the same cutting tool following a novel tool path strategy. An original tool design principle is proposed to realize a new drill-milling tool, made of a first drilling and a subsequent milling portion. Two different tool configurations are experimentally tested to evaluate the performance of the newly-conceived combined drill-milling process. This process is quick and easy, and the experimental results show an improvement in the drilled hole quality. |
format | Online Article Text |
id | pubmed-6120020 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-61200202018-09-05 Characterization of a New Dry Drill-Milling Process of Carbon Fibre Reinforced Polymer Laminates Caggiano, Alessandra Improta, Ilaria Nele, Luigi Materials (Basel) Article Carbon Fibre Reinforced Polymer (CFRP) composites are widely used in aerospace applications that require severe quality parameters. To simplify the assembly operations and reduce the associated costs, the current trend in industry is to optimize the drilling processes. However, the machining of CFRP composites is very challenging compared with metals, and several defect types can be generated by drilling. The emerging process of orbital drilling can greatly reduce the defects associated with the traditional drilling of CFRP, but it is a more complex process requiring careful process parameters selection and it does not allow for the complete elimination of the thrust force responsible for delamination damage. As an alternative to traditional and orbital drilling, this work presents a new hole making process, where the hole is realized by a combination of drilling and peripheral milling performed using the same cutting tool following a novel tool path strategy. An original tool design principle is proposed to realize a new drill-milling tool, made of a first drilling and a subsequent milling portion. Two different tool configurations are experimentally tested to evaluate the performance of the newly-conceived combined drill-milling process. This process is quick and easy, and the experimental results show an improvement in the drilled hole quality. MDPI 2018-08-18 /pmc/articles/PMC6120020/ /pubmed/30126200 http://dx.doi.org/10.3390/ma11081470 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 Caggiano, Alessandra Improta, Ilaria Nele, Luigi Characterization of a New Dry Drill-Milling Process of Carbon Fibre Reinforced Polymer Laminates |
title | Characterization of a New Dry Drill-Milling Process of Carbon Fibre Reinforced Polymer Laminates |
title_full | Characterization of a New Dry Drill-Milling Process of Carbon Fibre Reinforced Polymer Laminates |
title_fullStr | Characterization of a New Dry Drill-Milling Process of Carbon Fibre Reinforced Polymer Laminates |
title_full_unstemmed | Characterization of a New Dry Drill-Milling Process of Carbon Fibre Reinforced Polymer Laminates |
title_short | Characterization of a New Dry Drill-Milling Process of Carbon Fibre Reinforced Polymer Laminates |
title_sort | characterization of a new dry drill-milling process of carbon fibre reinforced polymer laminates |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6120020/ https://www.ncbi.nlm.nih.gov/pubmed/30126200 http://dx.doi.org/10.3390/ma11081470 |
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