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Applied Mechanics
Volume 2
Issue 4
10.3390/applmech2040055
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Correction published on 28 January 2022, see Appl. Mech. 2022, 3(1), 123-124.
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Article

Effects of Curing on Photosensitive Resins in SLA Additive Manufacturing

by
Carmela Riccio
,
Marco Civera
*,
Oliver Grimaldo Ruiz
,
Perla Pedullà
,
Mariana Rodriguez Reinoso
,
Giulia Tommasi
,
Martina Vollaro
,
Vito Burgio
and
Cecilia Surace
Laboratory of Bio-Inspired Nanomechanics, Department of Structural, Geotechnical and Building Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy
*
Author to whom correspondence should be addressed.
Appl. Mech. 2021, 2(4), 942-955; https://doi.org/10.3390/applmech2040055
Submission received: 28 September 2021 / Revised: 3 November 2021 / Accepted: 17 November 2021 / Published: 22 November 2021 / Corrected: 28 January 2022
(This article belongs to the Collection Fracture, Fatigue, and Wear)
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Abstract

Different mechanical properties characterise the materials of 3D printed components, depending on the specific additive manufacturing (AM) process, its parameters, and the post-treatment adopted. Specifically, stereolithography (SLA) uses a photopolymerisation technique that creates solid components through selective solidification. In this study, 72 specimens were 3D printed using 12 commercial-grade methacrylate resins and tested under uniaxial tensile loads. The resin specimens were evaluated before and after curing. The recommended cure temperature and time were followed for all materials. The stress-strain curves measured during the testing campaign were evaluated in terms of maximum tensile strength, Young’s modulus, ductility, resilience, and toughness. The results reveal that the curing process increases the material stiffness and resistance to tensile loads. However, it was found that the curing process generally reduces the plasticity of the resins, causing a more or less marked brittle behaviour. This represents a potential limitation to the use of SLA 3D printing for structural elements which require some plasticity to avoid dangerous sudden failures.
Keywords: stereolithography; SLA resins; cure process; additive manufacturing; 3D printing stereolithography; SLA resins; cure process; additive manufacturing; 3D printing

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MDPI and ACS Style

Riccio, C.; Civera, M.; Grimaldo Ruiz, O.; Pedullà, P.; Rodriguez Reinoso, M.; Tommasi, G.; Vollaro, M.; Burgio, V.; Surace, C. Effects of Curing on Photosensitive Resins in SLA Additive Manufacturing. Appl. Mech. 2021, 2, 942-955. https://doi.org/10.3390/applmech2040055

AMA Style

Riccio C, Civera M, Grimaldo Ruiz O, Pedullà P, Rodriguez Reinoso M, Tommasi G, Vollaro M, Burgio V, Surace C. Effects of Curing on Photosensitive Resins in SLA Additive Manufacturing. Applied Mechanics. 2021; 2(4):942-955. https://doi.org/10.3390/applmech2040055

Chicago/Turabian Style

Riccio, Carmela, Marco Civera, Oliver Grimaldo Ruiz, Perla Pedullà, Mariana Rodriguez Reinoso, Giulia Tommasi, Martina Vollaro, Vito Burgio, and Cecilia Surace. 2021. "Effects of Curing on Photosensitive Resins in SLA Additive Manufacturing" Applied Mechanics 2, no. 4: 942-955. https://doi.org/10.3390/applmech2040055

APA Style

Riccio, C., Civera, M., Grimaldo Ruiz, O., Pedullà, P., Rodriguez Reinoso, M., Tommasi, G., Vollaro, M., Burgio, V., & Surace, C. (2021). Effects of Curing on Photosensitive Resins in SLA Additive Manufacturing. Applied Mechanics, 2(4), 942-955. https://doi.org/10.3390/applmech2040055

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