Study of Selected Mechanical Parameters of Structures Printed using FDM Technology

Abstract

FDM (Fused Deposition Modeling) technology, initially used to create prototype models, has gained importance in the serial production of structural elements in various fields of engineering. In this paper, the influence of the internal structure and infill density on the strength properties of samples printed using FDM technology was analyzed. Static tensile tests were performed on samples made of ABS (acrylonitrile butadiene styrene) and PA6+CF15 (polyamide reinforced with 15% carbon fibre) materials, with different filling levels: 25%, 50%, 75% and 100%, using two internal structures – linear and honeycomb. The experimental results were verified by numerical analysis. The obtained results allow for a better understanding of the relationships between printing parameters and the mechanical characteristics of printed elements, maximum strength and material consumption efficiency.