EFFECT OF THE INFILL ARCHITECTURE ON THE MECHANICAL PROPERTIES OF 3D PRINTED PETG SAMPLES
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- TITLE: EFFECT OF THE INFILL ARCHITECTURE ON THE MECHANICAL PROPERTIES OF 3D PRINTED PETG SAMPLES
- ABSTRACT: In the present work, polyethylene terephthalate glycol (PETG) tensile and flexural test specimens were fabricated using the fused filament fabrication (FFF) technique. The samples had different infill densities, namely 35% and 100%, and different infill layer architectures – 45° and 90°. Mechanical tests were performed in order to determine the influence of the chosen 3D printing technological conditions on the flexural and tensile strengths of the samples. The results indicated that in all cases increasing the infill density increased the mechanical performance of the specimens. At low infill densities the change in the orientation of the samples had minimal effect on the mechanical capabilities of the samples, however, increasing the infill density to 100% led to a slight increase of the tensile strength and a major increase of the flexural strength.
- DOWNLOAD: Vol71-2025-3.pdf
- HOW TO CITE THIS ARTICLE: Petrov N., M. Ormanova, I. Jelezarov. Effect of the infill architecture on the mechanical properties of 3D printed PETG samples. Journal of the Technical University of Gabrovo. 71 (2025).