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Analysis of UV Curing Strategy on Reaction Heat Control and Part Accuracy for Additive Manufacturing

In this research, the relationship between the curing strategies and geometrical accuracy of parts under UV light was investigated. An IR camera was utilized to monitor the process using different combinations of photosensitive resin and curing strategies. The influences of curing strategies on diff...

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Detalles Bibliográficos
Autores principales: Jiang, Fengze, Drummer, Dietmar
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8875315/
https://www.ncbi.nlm.nih.gov/pubmed/35215672
http://dx.doi.org/10.3390/polym14040759
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author Jiang, Fengze
Drummer, Dietmar
author_facet Jiang, Fengze
Drummer, Dietmar
author_sort Jiang, Fengze
collection PubMed
description In this research, the relationship between the curing strategies and geometrical accuracy of parts under UV light was investigated. An IR camera was utilized to monitor the process using different combinations of photosensitive resin and curing strategies. The influences of curing strategies on different material compositions were studied with single-factor analysis. With the different exposure frequencies of the UV light, the peak temperature was adjusted to avoid overheating. The three-dimensional geometry of casting tensile bars was measured to investigate the shrinkage and warpage during the curing process. Different material compositions were also selected to study the effects of the maximum temperature on the shrinkage of the parts. The findings of this work show that, with the same amount of energy input, a more fragmented exposure allows for a more controllable max temperature, while one-time exposure leads to a high temperature during the process. With the decrease of the released heat from the reaction, the shrinkage of the casting part has a slightly increasing tendency. Moreover, the warpage of the parts decreased drastically with the decrease of temperature. The addition of fillers enhances the control over temperature and increases the geometrical accuracy.
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spelling pubmed-88753152022-02-26 Analysis of UV Curing Strategy on Reaction Heat Control and Part Accuracy for Additive Manufacturing Jiang, Fengze Drummer, Dietmar Polymers (Basel) Article In this research, the relationship between the curing strategies and geometrical accuracy of parts under UV light was investigated. An IR camera was utilized to monitor the process using different combinations of photosensitive resin and curing strategies. The influences of curing strategies on different material compositions were studied with single-factor analysis. With the different exposure frequencies of the UV light, the peak temperature was adjusted to avoid overheating. The three-dimensional geometry of casting tensile bars was measured to investigate the shrinkage and warpage during the curing process. Different material compositions were also selected to study the effects of the maximum temperature on the shrinkage of the parts. The findings of this work show that, with the same amount of energy input, a more fragmented exposure allows for a more controllable max temperature, while one-time exposure leads to a high temperature during the process. With the decrease of the released heat from the reaction, the shrinkage of the casting part has a slightly increasing tendency. Moreover, the warpage of the parts decreased drastically with the decrease of temperature. The addition of fillers enhances the control over temperature and increases the geometrical accuracy. MDPI 2022-02-15 /pmc/articles/PMC8875315/ /pubmed/35215672 http://dx.doi.org/10.3390/polym14040759 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Jiang, Fengze
Drummer, Dietmar
Analysis of UV Curing Strategy on Reaction Heat Control and Part Accuracy for Additive Manufacturing
title Analysis of UV Curing Strategy on Reaction Heat Control and Part Accuracy for Additive Manufacturing
title_full Analysis of UV Curing Strategy on Reaction Heat Control and Part Accuracy for Additive Manufacturing
title_fullStr Analysis of UV Curing Strategy on Reaction Heat Control and Part Accuracy for Additive Manufacturing
title_full_unstemmed Analysis of UV Curing Strategy on Reaction Heat Control and Part Accuracy for Additive Manufacturing
title_short Analysis of UV Curing Strategy on Reaction Heat Control and Part Accuracy for Additive Manufacturing
title_sort analysis of uv curing strategy on reaction heat control and part accuracy for additive manufacturing
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8875315/
https://www.ncbi.nlm.nih.gov/pubmed/35215672
http://dx.doi.org/10.3390/polym14040759
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