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Bonding widths of Deposited Polymer Strands in Additive Manufacturing
In this study, we explore the deformation of a polymer extrudate upon the deposition on a build platform, to determine the bonding widths between stacked strands in fused-filament fabrication. The considered polymer melt has an extremely high viscosity, which dominates in its deformation. Mainly con...
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/PMC7917731/ https://www.ncbi.nlm.nih.gov/pubmed/33670381 http://dx.doi.org/10.3390/ma14040871 |
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author | Luo, Cheng Mrinal, Manjarik Wang, Xiang Hong, Ye |
author_facet | Luo, Cheng Mrinal, Manjarik Wang, Xiang Hong, Ye |
author_sort | Luo, Cheng |
collection | PubMed |
description | In this study, we explore the deformation of a polymer extrudate upon the deposition on a build platform, to determine the bonding widths between stacked strands in fused-filament fabrication. The considered polymer melt has an extremely high viscosity, which dominates in its deformation. Mainly considering the viscous effect, we derive analytical expressions of the flat width, compressed depth, bonding width and cross-sectional profile of the filament in four special cases, which have different combinations of extrusion speed, print speed and nozzle height. We further validate the derived relations, using our experimental results on acrylonitrile butadiene styrene (ABS), as well as existing experimental and numerical results on ABS and polylactic acid (PLA). Compared with existing theoretical and numerical results, our derived analytic relations are simple, which need less calculations. They can be used to quickly predict the geometries of the deposited strands, including the bonding widths. |
format | Online Article Text |
id | pubmed-7917731 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-79177312021-03-02 Bonding widths of Deposited Polymer Strands in Additive Manufacturing Luo, Cheng Mrinal, Manjarik Wang, Xiang Hong, Ye Materials (Basel) Article In this study, we explore the deformation of a polymer extrudate upon the deposition on a build platform, to determine the bonding widths between stacked strands in fused-filament fabrication. The considered polymer melt has an extremely high viscosity, which dominates in its deformation. Mainly considering the viscous effect, we derive analytical expressions of the flat width, compressed depth, bonding width and cross-sectional profile of the filament in four special cases, which have different combinations of extrusion speed, print speed and nozzle height. We further validate the derived relations, using our experimental results on acrylonitrile butadiene styrene (ABS), as well as existing experimental and numerical results on ABS and polylactic acid (PLA). Compared with existing theoretical and numerical results, our derived analytic relations are simple, which need less calculations. They can be used to quickly predict the geometries of the deposited strands, including the bonding widths. MDPI 2021-02-11 /pmc/articles/PMC7917731/ /pubmed/33670381 http://dx.doi.org/10.3390/ma14040871 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 Luo, Cheng Mrinal, Manjarik Wang, Xiang Hong, Ye Bonding widths of Deposited Polymer Strands in Additive Manufacturing |
title | Bonding widths of Deposited Polymer Strands in Additive Manufacturing |
title_full | Bonding widths of Deposited Polymer Strands in Additive Manufacturing |
title_fullStr | Bonding widths of Deposited Polymer Strands in Additive Manufacturing |
title_full_unstemmed | Bonding widths of Deposited Polymer Strands in Additive Manufacturing |
title_short | Bonding widths of Deposited Polymer Strands in Additive Manufacturing |
title_sort | bonding widths of deposited polymer strands in additive manufacturing |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7917731/ https://www.ncbi.nlm.nih.gov/pubmed/33670381 http://dx.doi.org/10.3390/ma14040871 |
work_keys_str_mv | AT luocheng bondingwidthsofdepositedpolymerstrandsinadditivemanufacturing AT mrinalmanjarik bondingwidthsofdepositedpolymerstrandsinadditivemanufacturing AT wangxiang bondingwidthsofdepositedpolymerstrandsinadditivemanufacturing AT hongye bondingwidthsofdepositedpolymerstrandsinadditivemanufacturing |