Resumo

CARVAJAL LOAIZA, Manuel José et al. Influence of the Printing position and the Infill Density on the Mechanical Properties of 3D Printed ABS Specimens. Rev. ing. univ. Medellín [online]. 2020, vol.19, n.37, pp.179-193.  Epub 06-Set-2021. ISSN 1692-3324.  https://doi.org/10.22395/rium.v19n37a9.

In this paper, the influence of the printing position and the infill density on the elastic modulus, yield strength, ultimate strength, and toughness are researched in specimens built by fused deposition modeling (FDM). ABS specimens were built in two positions, XY and XZ, in which the angle raster was -45°/45° and 0°/90°, respectively. These specimens were tested to find its mechanical properties, and the studied parameters' influence was demonstrated. The discoveries allowed to identify that the mechanical properties of the final product differ from the ones in the base material (filament). In conclusion, to make parts by FDM, it is important to establish the mechanical properties of the final product, because these can differ substantially from the filament properties. Therefore, depending on the final application of the part, it will be necessary to established fabrication criteria that allow to build parts with more lifespan for a given load.

Palavras-chave : ABS; additive manufacturing; FDM; tensile test; mechanical properties; 3D printing.

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