Akademik Veri Yönetim Sistemi
6th International Conference On Frontiers In Academic Research ICFAR 2025, Konya, Türkiye, 16 - 17 Aralık 2025, ss.323-334, (Tam Metin Bildiri)
This study
experimentally investigates the effects of the fabrication direction
(flat-upright) and the infill ratio (30%, 65%, 100%) on the mechanical
performance of ABS samples produced using the Fused Deposition Modeling (FDM)
method. All samples were produced under the same printing parameters and
subjected to tensile tests according to the ASTM D638-14 Type IV standard. The
results show that the fabrication direction is the most critical parameter
determining mechanical behavior. Specimens produced in the flat orientation
achieved more effective stress transfer due to the parallel placement of the
layers to the load direction, and exhibited higher tensile and yield strengths
and higher elongation to fracture at all infill levels. In contrast, in the
upright orientation, the load acting perpendicular to the layer interfaces
increased interlayer delamination, resulting in more brittle fracture and lower
mechanical strength. SEM analyses revealed a more compact structure and reduced
void content in the flat samples, while the upright samples showed pronounced
delamination and large voids. The findings reveal that the flat
orientation–high solidity combination is the most suitable approach for
mechanical performance in the production of functional ABS parts.