A Review on The Influence of Infill Pattern, Printing Speed, and Infill Density on Tensile Strength in FFF 3D Printing

Abstract

Fused Filament Fabrication is a commonly used additive manufacturing technique of polymer components, and Polylactic Acid is one of the most frequently used materials because it is biodegradable, printable, and cost-effective. Nevertheless, internal structural parameters and processing parameters of FFF-printed PLA components, especially infill pattern, infill density, and printing speed, are highly relevant to tensile strength. It is necessary to study about the overall and separate action of these parameters to optimize the mechanical performance without reducing the print efficiency.