Article
Engineering, Manufacturing
Narongkorn Krajangsawasdi, Marco L. Longana, Ian Hamerton, Benjamin K. S. Woods, Dmitry S. Ivanov
Summary: Fused filament fabrication (FFF) technology can be used to print complex geometries. The use of fibrous reinforcement strengthens the material's mechanical performance, and HiPerDiF-PLA filament has potential in 3D printing.
ADDITIVE MANUFACTURING
(2021)
Article
Polymer Science
Peerawat Prathumrat, Mostafa Nikzad, Fareed Tamaddoni Jahromi, Elnaz Hajizadeh, Igor Sbarski
Summary: Liquid crystalline elastomers (LCEs) are shape memory materials that can respond to stimuli. In this study, new filaments of liquid crystalline thermoplastic elastomer (LCTPE) and its composites with lignin were produced using fused filament fabrication (FFF) technique. The results showed that the addition of thermoplastic polyurethane (TPU) and lignin improved the melt flow index and allowed for the shape memory characteristics to be maintained through 3D printing.
Review
Materials Science, Composites
Yubo Tao, Peng Li, Jingfa Zhang, Shoujuan Wang, Sheldon Q. Q. Shi, Fangong Kong
Summary: The combination of continuous natural fiber and fused filament fabrication (FFF) 3D printing enables the manufacturing of low carbon emitting, environment friendly, lightweight, and high strength biomass composites with designated geometry characteristics. Very few pieces of literature on the FFF printing of continuous natural fibers are available, making it an emerging field of research. A comprehensive review and discussion on current progress and the future prospects of continuous natural fiber 3D printing would be beneficial to its development.
POLYMER COMPOSITES
(2023)
Article
Engineering, Mechanical
Fernando Moura Duarte, Jose Antonio Covas, Sidonie Fernandes da Costa
Summary: The performance of parts obtained by fused filament fabrication (FFF) is heavily influenced by the bonding between adjacent filaments. This bonding is affected by the properties of the polymer material, temperature of the filaments, and time required for molecular diffusion. A computational thermal model was used to predict the influence of build orientation on bonding, with extrusion and build chamber temperature being major process parameters.
RAPID PROTOTYPING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Claudio Tosto, Jacopo Tirillo, Fabrizio Sarasini, Gianluca Cicala
Summary: The development of hybrid metal/polymer filaments opens up affordable metal 3D printing for small and medium enterprises, allowing the printing of metal parts through the standard FFF approach and conversion into dense metal parts through debinding and sintering cycles. Building orientation played a significant role in the tensile properties of the parts.
APPLIED SCIENCES-BASEL
(2021)
Article
Construction & Building Technology
Xiang Yu, Tian-Yun Yao, Jia-Hao Xiong, Yu Zhao, Yong-Jun Zhou, Yuan Jing
Summary: This paper proposes the concept of continuous printing filament hypothesis and establishes a progressive failure model to investigate the failure process of Fused Filament Fabrication (FFF) 3D printing composites. Through experiments and simulations, the accuracy and predictive capacity of the method are confirmed.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Mechanics
Hui-Jin Um, Ji-Seok Lee, Ji-Hwan Shin, Hak-Sung Kim
Summary: Sandwich structures with trapezoidal corrugated cores were 3D printed using fused deposition modeling (FDM) method and short and continuous carbon fiber (CF) reinforced nylon filament. The bending characteristics of different core types were investigated through three-point bending (3PB) tests. It was found that the mechanical behavior and failure modes were significantly influenced by core materials and the split number of cores. The corrugated sandwich structure printed using continuous carbon fiber showed dramatic improvements in mechanical performances compared to a PET foam core structure, with 4.1 times higher specific flexural stiffness, 2.6 times larger specific load capability, and 8.6 times larger energy absorption capability. This result was attributed to the precise fiber alignment achievable with continuous CF 3D printing technology.
COMPOSITE STRUCTURES
(2022)
Article
Polymer Science
Xiaochun Lu, Xiameng Zhang, Yangbo Li, Yan Shen, Yinqiu Ma, Yongdong Meng
Summary: Researchers have found through experiments and numerical simulations that optimizing the geometric structure of helicoidal composites can significantly enhance their low-velocity impact resistance, especially at a helicoidal angle of 15 degrees. This finding offers a new approach for designing composite systems with enhanced impact resistance and provides insights for improving impact performance and expanding the applications of 3D printing.
Article
Chemistry, Physical
Dorit Noetzel, Ralf Eickhoff, Christoph Pfeifer, Thomas Hanemann
Summary: This work presents a process chain for the fabrication of dense zirconia parts, focusing on the rheological characterization of feedstock systems. The study successfully achieved dense ceramic parts with structural details smaller than 100 μm.
Article
Polymer Science
Zachary Brounstein, Chris M. Yeager, Andrea Labouriau
Summary: This study successfully fabricated tunable, multifunctional antimicrobial PLA composite filaments for 3D-printing by utilizing thermally stable antimicrobial ceramics and a plasticizer, demonstrating unique thermal and mechanical properties suitable for the application.
Article
Engineering, Manufacturing
Callie E. Zawaski, Camden A. Chatham, Emily M. Wilts, Timothy E. Long, Christopher B. Williams
Summary: The study indicates that the print quality of semi-crystalline polymers in FFF is influenced by their crystallization behavior and viscosity. By altering the divalent counter-ions in semi-crystalline polymers, it is possible to improve the material's stability in the molten state and reduce layer warping during printing.
ADDITIVE MANUFACTURING
(2021)
Review
Polymer Science
Marie Bayart, Sebastien Charlon, Jeremie Soulestin
Summary: This review highlights the importance of fused filament fabrication in the medical field and emphasizes the necessity of process parameterization and material choice for developing optimized scaffolds. Furthermore, the review explores the use of biodegradable and biocompatible shape-memory polymers for potential research directions in this area.
Article
Materials Science, Characterization & Testing
Ning Yu, Guanghui Jing, Jie Yang, Zhi Wang, Qi Zhang, Jing Li
Summary: An innovative FFF 3D printer with a rotary shear head was developed to control the interface and crystallization of FFF printed PLA parts. The tensile strength of the specimens fabricated via the rotary shear field increased from 21.1 MPa to 59.3 MPa, and the degree of mechanical anisotropy decreased from 0.41 to 0.09. Good interface, randomly-distributed crystals, and high crystallinity contributed to the improvement in tensile strength and reduction in mechanical anisotropy of FFF printed PLA parts.
Article
Engineering, Manufacturing
Jiongyi Yan, Emrah Demirci, Ajith Ganesan, Andrew Gleadall
Summary: This study develops new understanding of the fibre orientation distribution in material extrusion additive manufacturing of short fibre reinforced polymer composites. The results show a direct relationship between fibre orientation and extrusion width, which holds true for different printing parameters and materials. These findings are significant for the understanding and analysis of processing-structure-property correlations.
ADDITIVE MANUFACTURING
(2022)
Article
Nanoscience & Nanotechnology
Bangan Peng, Yunchong Yang, Tianxiong Ju, Kevin A. Cavicchi
Summary: Researchers successfully printed a polymer blend with high extensibility, shape memory, and self-healing capabilities using a low-cost fused filament fabrication technology. By controlling the orientation of printed fibers, they achieved high strain at break and utilized a self-healing agent, PCL, to enable the material to heal scratches and cracks.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Multidisciplinary
Haoqi Zhang, Dongmin Yang, Yong Sheng
COMPOSITES PART B-ENGINEERING
(2018)
Article
Engineering, Multidisciplinary
Haoqi Zhang, Andrew N. Dickson, Yong Sheng, Terry McGrail, Denis P. Dowling, Chun Wang, Anne Neville, Dongmin Yang
COMPOSITES PART B-ENGINEERING
(2020)
Article
Engineering, Manufacturing
Haoqi Zhang, Jiayun Chen, Dongmin Yang
Summary: This study investigates the mechanisms of fibre misalignment and breakage in honeycomb structure 3D printing of carbon fiber filament. The uneven pressure from the nozzle leads to printing defects, which are exacerbated with increasing turning angle and curvature. The finite element model supports the experimental findings.
ADDITIVE MANUFACTURING
(2021)
Article
Automation & Control Systems
Hao Zhang, Lixing Zhang, Haoqi Zhang, Jiang Wu, Xizhong An, Dongmin Yang
Summary: The study reveals that nozzle clogging tends to occur when the fiber length and/or fiber volume fraction are increased; using a polymer matrix with a lower viscosity can effectively eliminate the clogging issue when printing composites with relatively short fibers; the fiber length dominates when long fibers are used and clogging is largely independent of the viscosity of the polymer matrix.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Engineering, Multidisciplinary
Haoqi Zhang, Jiang Wu, Colin Robert, Conchur M. O. Bradaigh, Dongmin Yang
Summary: A manufacturing technique combining 3D printing and epoxy infusion treatment was developed to fabricate curved continuous carbon fibre reinforced composites. The stiffness and strength of the printed composites were significantly increased compared to traditional thermoplastic-only composites. The study also showed that placing continuous carbon fibres along the principal stress trajectories greatly improved the failure strength and fracture toughness of the composites.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Engineering, Manufacturing
Przemyslaw Golebiewski, Pawel Wienclaw, Jaroslaw Cimek, Pawel Socha, Dariusz Pysz, Adam Filipkowski, Grzegorz Stepniewski, Olga Czerwinska, Ireneusz Kujawa, Ryszard Stepien, Rafal Kasztelanic, Andrzej Burgs, Ryszard Buczynski
Summary: We report the development of a 3D printing process for producing soft glass optical fibers. The process involves direct printing using a miniaturized crucible and depositing straight horizontally-oriented lines to replace traditional assembly techniques. Experimental results demonstrate good performance of the printed photonic crystal fiber preform.
ADDITIVE MANUFACTURING
(2024)
