The Effects of Infill Geometry and Porosity Ratio on Mechanical Properties of PLA Structures Produced by Additive Manufacturing

Authors : Rukiye YEŞİLOĞLU, Ramazan ÖZMEN, Mustafa GÜNAY

Pages : 291-303

View : 40 | Download : 45

Publication Date : 2023-08-31

Article Type : Research Paper

Abstract :The fabrication of intricately formed parts, challenging with the traditional manufacturing approach, is facilitated by additive manufacturing insert ignore into journalissuearticles values(AM);. Stacking the material layer by layer and using the 3D data from the model, parts are created using this technique. The design of parts with various porosities inside the same cell structure and industry sector-specific manufacture are both made possible by this technology. With varied infill geometries and porosity ratios, pieces made from PLA material with different mechanical properties were compared in this study. Parts were made for this purpose using fused deposition modeling insert ignore into journalissuearticles values(FDM); and various infill geometries insert ignore into journalissuearticles values(Octet, Gyroid, and Cross);. The unit cell size for infill geometries was set at 5x5x5mm, and test samples with porosities of 50%, 30%, and 20% were created. Tensile, compression, and impact tests were conducted to examine the mechanical behavior of these parts, and the best unit cell structure was selected based on the assessed mechanical properties. In general, it was found that all fill geometries\` mechanical qualities declined with increasing porosity ratio. The Octet infill geometry structure had the maximum tensile strength. However, the Cross infill geometry sample had the most significant deformation.
Keywords : Eklemeli İmalat, Eriyik Yığma, Dolgu geometrisi, Mekanik özellik, Plastik malzeme