Year: 2025
Type: article
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.
DOI: 10.62853/hhvs3786
Authors: Nikolay Petrov, Maria Ormanova, Iliya Zhelezarov
Institution: Technical University of Gabrovo
Language: English
Subfield: Industrial and Manufacturing Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W4417522467