Results 51 to 60 of about 1,784,014 (194)

Variable-geometry nozzle for surface quality enhancement in 3D concrete printing

, 2021
sponsorship: This research is supported by the National Research Foundation-Prime Minister's Office, Singapore, under its Medium-Sized Centre funding scheme, Singapore Centre for 3D Printing, and Sembcorp Design & Construction Pte Ltd. (National Research
Tjahjowidodo, Tegoeh, Lao, Wenxin, Li, Mingyang, Tegoeh Tjahjowidodo, Mingyang Li, Wenxin Lao   +5 more
core   +1 more source

An Explicit Constitutive Reconstruction Framework for Mechanical Characterization of Miniaturized 3D‐Printed Specimens

Advanced Engineering Materials, EarlyView.
An explicit constitutive reconstruction framework enables accurate tensile characterization of miniaturized additively manufactured specimens using only the grip‐to‐grip displacement measurements. Progressive validation through self‐consistency, analytical comparison, and inverse finite element method (iFEM) benchmarking demonstrates constitutive ...
Junqing Leng, Caralyn Collins, Pengpeng Zhang, Joanna Zhang, Cheng Sun   +4 more
wiley   +1 more source

3D printing of curved concrete surfaces using Adaptable Membrane Formwork

, 2019
In this paper, we study the printing of non-developable curved panels using existing 3D concrete printing technology combined with a novel Adaptable Membrane Formwork. The Adaptable Membrane Formwork consists of a grid of threaded rods, whose heights are
Lim, Jian Hui, Pham, Quang-Cuong, Weng, Yiwei   +2 more
core   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

Advanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Investigation of High-Temperature Tensile Properties and Fracture Mechanisms of GH3536 Alloy Fabricated by Selective Laser Melting

Metals
This work revealed the mechanism of microstructure evolution on tensile properties in selective laser melted (SLM) GH3536 superalloys in the range of room temperature to 1000 °C.
Biao Zhou, Shuai Huang, Tianyuan Wang, Cheng Wang, Bingqing Chen   +4 more
doaj   +1 more source

3D Printing and Bioprinting in MEMS Technology

, 2017
3D printing and bioprinting have advanced significantly in printing resolution in recent years, which presents a great potential for fabricating small and complex features suitable for microelectromechanical systems (MEMS) with new functionalities.
Jia An, Yeong, Wai Yee, An, Jia, Chee Kai Chua, Chua, Chee Kai, Wai Yee Yeong   +5 more
core   +1 more source

Silicone 3D printing : process optimization, product biocompatibility, and reliability of silicone meniscus implants [PDF]

, 2019
A novel custom-made 3D silicone printer and two-part Ecoflex silicone resins were used to 3D-print standard-shaped silicone coupon and irregular-shaped meniscus structures via a heat-cured extrusion-based method.
Pan, Houwen Matthew, Tan, Joel Heang Kuan, Yeong, Wai Yee, Goh, Guo Liang, Bajpai, Ram, Sing, Swee Leong, Song, Juha, Goh, Guo Dong, Tan, Heang Kuan Joel, Luis, Eric, Bastola, Anil Kumar, Anil Bastola   +11 more
core   +1 more source

Entropy‐Driven Design of Low‐Melting‐Point Alloys via Compositionally Complex Strategy

Advanced Engineering Materials, EarlyView.
Conventional low‐melting‐point alloys (LMPAs) are limited by a narrow compositional space and inherent property trade‐offs. This review presents an entropy‐driven design strategy that overcomes these limitations, ushering in a new class of low‐melting‐point compositionally complex alloys (LMCCAs).
Yinghui Shang, Jianxiang Zhao, Zhaoqi Chen, Hao Gong, Yinsen Yan, Junlei Tao, Yong Yang   +6 more
wiley   +1 more source

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

Advanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn, Sarah Kaden, Andrea Barz, Daniel Störzner, Jens Bliedtner, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

In-process filament repair in 3D concrete printing with instance segmentation

Virtual and Physical Prototyping
3D Concrete Printing (3DCP) stands as an automated method using robotics to construct concrete structures layer by layer, offering time efficiency, cost savings, and improved safety.
Tan Kai Noel Quah, Zhi Xin Liu, Yi Wei Daniel Tay, Ming Yang Li, Ming Jen Tan, Teck Neng Wong, King Ho Holden Li   +6 more
doaj   +1 more source