Stacking optimization of 3D printed continuous fiber layer designs

2022 ◽  
Vol 164 ◽  
pp. 103077
Author(s):  
Kamil Opalach ◽  
Joanna Porter-Sobieraj ◽  
Przemysław Zdroik
Keyword(s):  
Continuous Fiber ◽  
Fiber Layer ◽  
3D Printed

Bending fracture rule for 3D-printed curved continuous-fiber composite

2018 ◽  
Vol 28 (4) ◽  
pp. 383-395 ◽  
Author(s):  
Kouki Ishii ◽  
Akira Todoroki ◽  
Yoshihiro Mizutani ◽  
Yoshiro Suzuki ◽  
Yoichiro Koga ◽  
...  
Keyword(s):  
Fiber Composite ◽  
Continuous Fiber ◽  
3D Printed ◽  
Bending Fracture

scholarly journals Manufacturing a First Upper Molar Dental Forceps Using Continuous Fiber Reinforcement (CFR) Additive Manufacturing Technology with Carbon-Reinforced Polyamide

Polymers ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 2647
Author(s):  
Roland Told ◽  
Gyula Marada ◽  
Szilard Rendeki ◽  
Attila Pentek ◽  
Balint Nagy ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Medical Devices ◽  
Fiber Reinforcement ◽  
Strong Impact ◽  
Vertical Force ◽  
Continuous Fiber ◽  
Fused Filament Fabrication ◽  
Sem Images ◽  
3D Printed ◽  
Upper Molar

3D printing is an emerging and disruptive technology, supporting the field of medicine over the past decades. In the recent years, the use of additive manufacturing (AM) has had a strong impact on everyday dental applications. Despite remarkable previous results from interdisciplinary research teams, there is no evidence or recommendation about the proper fabrication of handheld medical devices using desktop 3D printers. The aim of this study was to critically examine and compare the mechanical behavior of materials printed with FFF (fused filament fabrication) and CFR (continuous fiber reinforcement) additive manufacturing technologies, and to create and evaluate a massive and practically usable right upper molar forceps. Flexural and torsion fatigue tests, as well as Shore D measurements, were performed. The tensile strength was also measured in the case of the composite material. The flexural tests revealed the measured force values to have a linear correlation with the bending between the 10 mm (17.06 N at 5000th cycle) and 30 mm (37.99 N at 5000th cycle) deflection range. The findings were supported by scanning electron microscopy (SEM) images. Based on the results of the mechanical and structural tests, a dental forceps was designed, 3D printed using CFR technology, and validated by five dentists using a Likert scale. In addition, the vertical force of extraction was measured using a unique molar tooth model, where the reference test was carried out using a standard metal right upper molar forceps. Surprisingly, the tests revealed there to be no significant differences between the standard (84.80 N ± 16.96 N) and 3D-printed devices (70.30 N ± 4.41 N) in terms of extraction force in the tested range. The results also highlighted that desktop CFR technology is potentially suitable for the production of handheld medical devices that have to withstand high forces and perform load-bearing functions.

Enhanced Bonding via Additive Manufacturing-Enabled Surface Tailoring of 3D Printed Continuous-Fiber Composites

2018 ◽  
Vol 20 (12) ◽  
pp. 1800691 ◽  
Author(s):  
Edem Dugbenoo ◽  
Muhamad F. Arif ◽  
Brian L. Wardle ◽  
Shanmugam Kumar
Keyword(s):  
Additive Manufacturing ◽  
Fiber Composites ◽  
Continuous Fiber ◽  
3D Printed

scholarly journals A Novel Route to Fabricate High-Performance 3D Printed Continuous Fiber-Reinforced Thermosetting Polymer Composites

Materials ◽  
2019 ◽  
Vol 12 (9) ◽  
pp. 1369 ◽  
Author(s):  
Yueke Ming ◽  
Yugang Duan ◽  
Ben Wang ◽  
Hong Xiao ◽  
Xiaohui Zhang
Keyword(s):  
3D Printing ◽  
Polymer Composites ◽  
High Performance ◽  
Flexural Modulus ◽  
Shape Preservation ◽  
Fiber Reinforced ◽  
Continuous Fiber ◽  
Research Attention ◽  
3D Printed ◽  
Thermosetting Polymer

Recently, 3D printing of fiber-reinforced composites has gained significant research attention. However, commercial utilization is limited by the low fiber content and poor fiber–resin interface. Herein, a novel 3D printing process to fabricate continuous fiber-reinforced thermosetting polymer composites (CFRTPCs) is proposed. In brief, the proposed process is based on the viscosity–temperature characteristics of the thermosetting epoxy resin (E-20). First, the desired 3D printing filament was prepared by impregnating a 3K carbon fiber with a thermosetting matrix at 130 °C. The adhesion and support required during printing were then provided by melting the resin into a viscous state in the heating head and rapidly cooling after pulling out from the printing nozzle. Finally, a powder compression post-curing method was used to accomplish the cross-linking reaction and shape preservation. Furthermore, the 3D-printed CFRTPCs exhibited a tensile strength and tensile modulus of 1476.11 MPa and 100.28 GPa, respectively, a flexural strength and flexural modulus of 858.05 MPa and 71.95 GPa, respectively, and an interlaminar shear strength of 48.75 MPa. Owing to its high performance and low concentration of defects, the proposed printing technique shows promise in further utilization and industrialization of 3D printing for different applications.

Sign in / Sign up

Export Citation Format

Share Document