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Processing parameters investigation for the fabrication of self-supported and freeform polymeric microstructures using ultraviolet-assisted three-dimensional printing

Rouhollah Dermanaki Farahani, Louis Laberge Lebel et Daniel Therriault

Article de revue (2014)

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Abstract

The ultraviolet-assisted 3D printing (UV-3DP) was used to manufacture photopolymer-based microdevices with 3D self-supported and freeform features. The UV-3DP technique consists of the robotized deposition of extruded filaments, which are rapidly photopolymerized under UV illumination during the deposition process. This paper systematically studies the processing parameters of the UV-3DP technique using two photo-curable polymers and their associated nanocomposite materials. The main processing parameters including materials' rheological behavior, deposition speed and extrusion pressure, and UV illumination conditions were thoroughly investigated. A processing map was then defined in order to help choosing the proper parameters for the UV-3D printing of microstructures with various geometries. Compared to self-supported features, the accurate fabrication of 3D freeform structures was found to take place in a narrower processing region since a higher rigidity of the extruded filament was required for structural stability. Finally, various 3D self-supported and freeform microstructures with high potential in micro electromechanical systems, micro-systems and organic electronics were fabricated to show the capability of the technique.

Sujet(s): 1700 Conception et fabrication > 1702 Méthodes de fabrication avancées
2100 Génie mécanique > 2100 Génie mécanique
Département: Département de génie mécanique
Centre de recherche: CREPEC - Centre de recherche sur les systèmes polymères et composites à haute performance
LM2 - Laboratoire de Mécanique Multi-échelles
Organismes subventionnaires: FQRNT (Le Fonds Québécois de la Recherche sur la Nature et les Technologies)
URL de PolyPublie: https://publications.polymtl.ca/10406/
Titre de la revue: Journal of Micromechanics and Microengineering (vol. 24, no 5)
Maison d'édition: IOP Publishing Ltd
DOI: 10.1088/0960-1317/24/5/055020
URL officielle: https://doi.org/10.1088/0960-1317/24/5/055020
Date du dépôt: 01 août 2022 11:40
Dernière modification: 28 sept. 2024 08:17
Citer en APA 7: Farahani, R. D., Laberge Lebel, L., & Therriault, D. (2014). Processing parameters investigation for the fabrication of self-supported and freeform polymeric microstructures using ultraviolet-assisted three-dimensional printing. Journal of Micromechanics and Microengineering, 24(5), 055020 (12 pages). https://doi.org/10.1088/0960-1317/24/5/055020

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