EXPERIMENTAL INVESTIGATION OF THE EFFECTS OF SCANNING STRATEGY AND INFILL RATIO ON PART WEIGHT IN FDM MANUFACTURING
15th INTERNATIONAL CONGRESS ON CURRENT DEVELOPMENTS IN SCIENCE, TECHNOLOGY AND SOCIAL SCIENCES, Paris, Fransa, 19 - 21 Haziran 2026, ss.52-59, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Basıldığı Şehir: Paris
- Basıldığı Ülke: Fransa
- Sayfa Sayıları: ss.52-59
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Gazi Üniversitesi Adresli: Evet
Özet
Fused Deposition Modeling (FDM) is widely used in additive manufacturing applications due to its low production cost, design flexibility, and rapid prototyping capability. In FDM-produced parts, the infill ratio is nominally defined by slicing software and directly affects the internal structure, weight, and material distribution of the printed component. However, discrepancies may occur between theoretical and actual weight values depending on the manufacturing process. These discrepancies are mainly caused by factors such as extrusion behavior, filament deposition geometry, interlayer bonding quality, and void formation during printing. In this study, cubic specimens were fabricated using Polylactic Acid (PLA) with three different infill ratios of 30%, 60%, and 90%. Concentric, linear, and Hilbert curve-based scanning strategies were employed in the specimens. All manufacturing parameters were kept constant, and only the effects of infill ratio and scanning strategy were investigated. The theoretical weights of the produced specimens were obtained from the slicing software, while the actual weights were experimentally measured using a precision balance. Error rates between theoretical and actual weight values were calculated to evaluate the influence of different scanning strategies on weight deviation. The results indicated that discrepancies existed between theoretical and actual weight values at all infill ratios. The highest error values were observed at the 30% infill ratio, where the error rate was approximately 5.47% for concentric and linear scanning strategies, while the Hilbert curve-based scanning strategy reached an error of 7.86%. At the 60% infill ratio, the error values decreased considerably, and the Hilbert strategy exhibited an error rate of approximately 0.29%. At the 90% infill ratio, all strategies produced results very close to the theoretical values. In particular, the Hilbert curve-based scanning strategy showed only a very small deviation between theoretical and actual weight values. The findings demonstrated that scanning strategy has a more pronounced effect on the actual part weight at lower infill ratios. As a result, it was concluded that not only the nominal infill ratio but also the selected scanning strategy is a determining parameter affecting the actual weight of FDM-produced parts.