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Drilling Burr Minimization by Changing Drill Geometry

This article presents an attempt to solve the problem of the formation of burrs and drilling caps in the process of drilling in difficult-to-cut materials, specifically in the titanium alloy Ti-6Al-4V. In order to eliminate these phenomena, a chamfer of specific length and angle was made on FANAR dr...

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Autores principales: Franczyk, Emilia, Ślusarczyk, Łukasz, Zębala, Wojciech
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7411972/
https://www.ncbi.nlm.nih.gov/pubmed/32708491
http://dx.doi.org/10.3390/ma13143207
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author Franczyk, Emilia
Ślusarczyk, Łukasz
Zębala, Wojciech
author_facet Franczyk, Emilia
Ślusarczyk, Łukasz
Zębala, Wojciech
author_sort Franczyk, Emilia
collection PubMed
description This article presents an attempt to solve the problem of the formation of burrs and drilling caps in the process of drilling in difficult-to-cut materials, specifically in the titanium alloy Ti-6Al-4V. In order to eliminate these phenomena, a chamfer of specific length and angle was made on FANAR drill’s margin. Taguchi and ANOVA methods were used to plan and analyze the experiment aimed at determining the optimal geometry of the modified drill. Chamfer with a length of 2 mm and an angle of 10° was selected. In the next stage of research, the values of cutting forces and burr heights obtained during drilling with the original and modified drill were compared for three different feed rate values. It turned out that the introduced changes significantly reduced both the axial cutting force (22–23%) and the height of burrs (10–22%) and caused the complete elimination of the presence of drilling caps. Additionally, a positive correlation between the cutting force and the burr size was found.
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spelling pubmed-74119722020-08-25 Drilling Burr Minimization by Changing Drill Geometry Franczyk, Emilia Ślusarczyk, Łukasz Zębala, Wojciech Materials (Basel) Article This article presents an attempt to solve the problem of the formation of burrs and drilling caps in the process of drilling in difficult-to-cut materials, specifically in the titanium alloy Ti-6Al-4V. In order to eliminate these phenomena, a chamfer of specific length and angle was made on FANAR drill’s margin. Taguchi and ANOVA methods were used to plan and analyze the experiment aimed at determining the optimal geometry of the modified drill. Chamfer with a length of 2 mm and an angle of 10° was selected. In the next stage of research, the values of cutting forces and burr heights obtained during drilling with the original and modified drill were compared for three different feed rate values. It turned out that the introduced changes significantly reduced both the axial cutting force (22–23%) and the height of burrs (10–22%) and caused the complete elimination of the presence of drilling caps. Additionally, a positive correlation between the cutting force and the burr size was found. MDPI 2020-07-18 /pmc/articles/PMC7411972/ /pubmed/32708491 http://dx.doi.org/10.3390/ma13143207 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
Franczyk, Emilia
Ślusarczyk, Łukasz
Zębala, Wojciech
Drilling Burr Minimization by Changing Drill Geometry
title Drilling Burr Minimization by Changing Drill Geometry
title_full Drilling Burr Minimization by Changing Drill Geometry
title_fullStr Drilling Burr Minimization by Changing Drill Geometry
title_full_unstemmed Drilling Burr Minimization by Changing Drill Geometry
title_short Drilling Burr Minimization by Changing Drill Geometry
title_sort drilling burr minimization by changing drill geometry
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7411972/
https://www.ncbi.nlm.nih.gov/pubmed/32708491
http://dx.doi.org/10.3390/ma13143207
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