Experimental study of the compression behavior of mask image projection based on stereolithography manufactured parts

Casafont, Miquel; Pons, Josep M.; Bonada, Jordi; Pastor, M.M.; Marimon, Frederic; Roure, Francesc

doi:10.1016/j.promfg.2019.09.033

Cited by 4 publications

(1 citation statement)

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“…The strain was measured by means of the crosshead displacement of the testing machine. It is recommended to use crosshead displacement or the digital image correlation (DIC) technique to determine the specimen strain for materials with lower values of Young’s modulus [ 21 ].…”

Section: Methodsmentioning

confidence: 99%

Analysis of the Compression Behaviour of Reinforced Photocurable Materials Used in Additive Manufacturing Processes Based on a Mask Image Projection System

et al. 2021

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Mask image projection based on stereolithography is an additive manufactured technology based on a Frontal Photopolymerization Process. Therefore, photocurable resins are used to build-up parts layer by layer. In this paper, alumina particles have been used as a reinforcement filler in order to improve the material stress-strain behaviour. In addition, the increment of the photoconversion ratio is a key factor to enhance the mechanical properties. Consequently, a numerical model has been used to determine the optimal printing parameters to enhance the elastic mechanical properties of printed parts according to the characteristics of photocurable materials. Stable and homogeneous reinforced materials have been obtained with an alumina content ranging from 5 to 15 wt%. Furthermore, the compression behaviour of reinforced materials has been analysed by means of experimental tests. The results show an enhancement of mechanical properties after the addition of reinforcement fillers, obtaining a maximum improvement in 10 wt% of solid load content. Finally, the influence of the sample’s orientation on the construction platform has been discussed.

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Section: Methodsmentioning

confidence: 99%