Optimization of FDM parameters for enhanced mechanical properties of chopped carbon fiber-reinforced polymer composites
Document Type
Article
Publication Date
1-1-2024
Abstract
Properly selected values for fused deposition modeling (FDM) printing parameters can enhance the mechanical and microstructural characteristics of the 3-D printed part. For this purpose, the Taguchi method for the design of experiments (DOE) is employed in this study to determine optimal values for four FDM printing parameters when utilizing chopped carbon fiber-reinforced polyamide filaments. Optimization aims to maximize the ultimate tensile strength (UTS) and minimize inter-layer porosities, while also considering the printing time and the weight of the part. Tensile test specimens, designed according to the ASTM D638 standard, were printed using the parameter values determined by the Taguchi model. Additionally, cubic samples were printed using similar parameters, and their cross-sectional porosities were assessed through optical micrography and image processing software. The tensile test results exhibited significant variations in the UTS values of the specimens, ranging from 91.9 to 171 MPa, with porosities ranging between 1.4% and 17.63%. Based on the Taguchi model, an infill line distance of 0.4 mm, layer height of 0.3 mm, printing speed of 100 mm/s, and chamber temperature of 55 °C yielded in the most optimized specimen, as determined by the UTS/weight and UTS/time criterion. Subsequent tensile tests validated the prediction of the Taguchi optimization.
Publication Source (Journal or Book title)
Progress in Additive Manufacturing
Recommended Citation
Rouhi Moghanlou, M., Azizian-Farsani, E., Mahmoudi, A., & Khonsari, M. (2024). Optimization of FDM parameters for enhanced mechanical properties of chopped carbon fiber-reinforced polymer composites. Progress in Additive Manufacturing https://doi.org/10.1007/s40964-024-00736-4
