Akademik Veri Yönetim Sistemi
Black Sea Journal of Engineering and Science, cilt.6, sa.3, ss.276-287, 2023 (Hakemli Dergi)
Three-dimensional
(3D) printing is a rapidly evolving manufacturing technology that enables the
production of intricate, customizable parts with a wide range of applications.
The quality and mechanical properties of printed parts are heavily influenced by
the process parameters, such as nozzle size. This study presents a
comprehensive investigation of the effect of nozzle diameter on the tensile
strength of 3D-printed polylactic acid (PLA) parts, focusing on six nozzle
sizes: 0.3, 0.4, 0.5, 0.6, 0.7, and 0.8 mm. PLA, a commonly used thermoplastic
in 3D printing, was employed as the material of choice. Using an open-source
Fused Filament Fabrication (FFF) 3D printer, dog bone-shaped specimens were
printed according to the ASTM D638-Type IV standard
for tensile testing. The results reveal a strong correlation between nozzle
size and tensile strength, with smaller nozzles producing parts with higher
tensile strength due to finer layers and improved interlayer adhesion. However,
the trade-off between tensile strength and printing time associated with
smaller nozzle sizes must be considered when optimizing the 3D printing process
for specific applications. This study provides essential insights into the
influence of nozzle diameter on tensile strength, offering valuable guidance
for achieving desired mechanical properties in 3D-printed parts.