Results 61 to 70 of about 55,900 (262)

Reprocessable thermosets for sustainable three-dimensional printing

Nature Communications, 2018
Thermosetting polymers are widely used in 3D printing owing to their superior mechanical stability, but once they are printed, the highly crosslinked polmyers cannot be reprocessed or repaired.
Biao Zhang, Kavin Kowsari, Ahmad Serjouei, Martin L. Dunn, Qi Ge   +4 more
doaj   +1 more source

3D and 4D Printing of Multistable Structures

Applied Sciences, 2020
Three-dimensional (3D) printing is a new paradigm in customized manufacturing and allows the fabrication of complex structures that are difficult to realize with other conventional methods. Four-dimensional (4D) printing adds active, responsive functions
Hoon Yeub Jeong, Soo-Chan An, Yeonsoo Lim, Min Ji Jeong, Namhun Kim, Young Chul Jun   +5 more
doaj   +1 more source

Compatibility of Methacrylate Based Resins Controls Interfacial Failure and Toughness in 3D‐Printed Multimaterial Composites

Advanced Engineering Materials, EarlyView.
This work shows that the mechanical performance of multimaterial digital light processing (DLP) printed thermoset composites is governed by resin compatibility and interfacial design rather than spatial patterning alone. Brittle and ductile resin combinations produced premature interfacial failure, while graded interfaces and mechanically compatible ...
Ahmed M. H. Ibrahim, Li Meng, Ahmad R. Najafi, Nicolas J. Alvarez   +3 more
wiley   +1 more source

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

Advanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev, Noah‐Lean Roschlaub, Anne Jung   +2 more
wiley   +1 more source

Accuracy of 3D Printed Model Acquired from Different Types of Intra Oral Scanners and 3D Printers

Journal of Pharmacy and Bioallied Sciences
ObjectiveThe aim of this study was to verify the influence of different types of intraoral scanners and 3D printers on the accuracy of printed models in comparison to plaster models obtained from conventional impressions.
Niras Soniya, Chokhani Dishita, Jadhao Tanvi A, Bandgar Shreyas T, Bayaskar Surbhi G   +4 more
doaj   +1 more source

Defect Evolution and Mechanical Performance of Fused Filament Fabrication‐Manufactured 17‐4PH Stainless Steel Revealed by X‐Ray Computed Tomography

Advanced Engineering Materials, EarlyView.
X‐ray computed tomography reveals how process‐induced defects evolve from green to sintered states in Fused Filament Fabrication (FFF)‐manufactured 17‐4PH stainless steel. Internal porosity, weakest cross‐sections, and fracture locations show strong correlation with tensile performance, demonstrating the potential of computed tomography (CT)‐based ...
György Ledniczky, Márk Sárközi, Ibolya Zsoldos, Zoltán Weltsch   +3 more
wiley   +1 more source

Timely tibiotalar fusion after utilization of Masquelet technique guided by in-hospital 3D printing

Journal of the Foot & Ankle
The following report describes a case of a 24-year-old female who presented with a traumatic open trimalleolar ankle fracture with severe distal tibial bone loss. She was submitted to a staged acute Masquelet technique, where the in-hospital 3D printing
Ahmed Nageeb Mahmoud, Jonh Alexander Holbert, Benjamin Richards Wagner, Daniel Scott Horwitz   +3 more
doaj   +1 more source

Development of a Novel 3D Spherical Printer [PDF]

Robotica & Management, 2019
Three dimensional printing process is the technology that can take the production process from the industrial specialized companies and hand it over to each and every individual who owns a three dimensional printing device.
Tivadar Demjen, Erwin-Christian Lovasz, Carmen Sticlaru, Dan Teuşdea, Iosif Cărăbaş   +4 more
doaj  

Additive Manufacturing of Alumina‐Reinforced Elastomers

Advanced Engineering Materials, EarlyView.
Vat‐photopolymerized elastomers reinforced with platelet‐shaped alumina exhibited preferential orientation, reduced porosity, and significantly enhanced mechanical performance. A 3 wt% platelet loading increased tensile strength from 12.4 to 45.7 MPa, highlighting the critical role of filler morphology in elastomeric VPP composites.
Majid Barzegar Keyvani, Zongwen Fu, Robert Göstl, Hamed Shokri, Carmine Putignano, Gianluca Percoco, Bilal Gökce   +6 more
wiley   +1 more source

In vitro Accuracy of Dental 3D Printers for the Fabrication of Laminate Veneers with Different Preparation Designs [PDF]

Journal of Dentistry
Background: The adoption of three-dimensional (3D) printing in dentistry for prosthetic workflows is increasing. A crucial step in the indirect fabrication of laminate veneers involves creating accurate master casts from digital impressions.
Mohammad Amin Bafandeh, Mohammad Alihemmati, Ali Jamali Ghomi, Maryam Jahangiri, Yasaman Sherafatmand, Sayed Shojaedin Shayegh   +5 more
doaj   +1 more source