Effect of relative density and strut thickness on dimensional accuracy in lattice structures produced by additive manufacturing
Journal of Cellular Plastics, cilt.62, sa.4, ss.249-263, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 62 Sayı: 4
- Basım Tarihi: 2026
- Doi Numarası: 10.1177/0021955x261442906
- Dergi Adı: Journal of Cellular Plastics
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, ABI/INFORM, Compendex, INSPEC
- Sayfa Sayıları: ss.249-263
- Anahtar Kelimeler: additive manufacturing, dimensional accuracy, lattice structures, strut thickness
- İnönü Üniversitesi Adresli: Evet
Özet
Additive manufacturing of lattice structures offers superior lightweight and energy-absorbing properties across aviation, automotive, and biomedical sectors. However, achieving dimensional precision remains a primary obstacle to ensuring design compatibility and product functionality. To address this challenge, this study introduces a novel comparative analysis of BCC, Diamond, and Octet Truss geometries, specifically focusing on the interplay between infill density and strut thickness. By evaluating PLA-fabricated plates with thicknesses of 0.8 mm, 1 mm, and 1.2 mm through microscopic CAD-to-print comparison, the research identifies critical accuracy thresholds. Findings demonstrate that higher infill ratios significantly enhance structural stability; notably, Octet Truss structures exhibited substantially lower dimensional deviations (0.694%–1.923%) compared to BCC structures (1.25%–3.546%). Furthermore, increasing strut thickness to 1.2 mm reduced deviation rates by up to 50% compared to 0.8 mm struts. These results provide a significant resource for optimizing additive manufacturing parameters, offering new insights into achieving high-precision fabrication for complex lattice systems.