scholarly journals Real-Time Monitoring Technology of Plaster-Based Three-Dimensional Printing System for Quality Determination of Model Structure

2015 ◽  
pp. 1
Keyword(s):  
Real Time ◽  
Three Dimensional ◽  
Model Structure ◽  
Real Time Monitoring ◽  
Monitoring Technology ◽  
Three Dimensional Printing ◽  
Printing System ◽  
Dimensional Printing

A review of 3D concrete printing systems and materials properties: current status and future research prospects

2018 ◽  
Vol 24 (4) ◽  
pp. 784-798 ◽  
Author(s):  
Suvash Chandra Paul ◽  
Gideon P.A.G. van Zijl ◽  
Ming Jen Tan ◽  
Ian Gibson
Keyword(s):  
Three Dimensional ◽  
Current Status ◽  
Future Research ◽  
Structural Elements ◽  
Construction Time ◽  
Content Type ◽  
Three Dimensional Printing ◽  
Materials Research ◽  
Printing System ◽  
Dimensional Printing

Purpose Three-dimensional printing of concrete (3DPC) has a potential for the rapid industrialization of the housing sector, with benefits of reduced construction time due to no formwork requirement, ease of construction of complex geometries, potential high construction quality and reduced waste. Required materials adaption for 3DPC is within reach, as concrete materials technology has reached the point where performance-based specification is possible by specialists. This paper aims to present an overview of the current status of 3DPC for construction, including existing printing methods and material properties required for robustness of 3DPC structures or structural elements. Design/methodology/approach This paper has presented an overview of three categories of 3DPC systems, namely, gantry, robotic and crane systems. Material compositions as well as fresh and hardened properties of mixes currently used for 3DPC have been elaborated. Findings This paper presents an overview of the state of the art of 3DPC systems and materials. Research needs, including reinforcement in the form of bars or fibres in the 3D printable cement-based materials, are also addressed. Originality/value The critical analysis of the 3D concrete printing system and materials described in this review paper is original.

Alignment Algorithm for Nano-scale Three-dimensional Printing System

2014 ◽  
Vol 31 (12) ◽  
pp. 1101-1106 ◽  
Author(s):  
Ki-Hwan Jang ◽  
Hyun-Taek Lee ◽  
Chung-Soo Kim ◽  
Won-Shik Chu ◽  
Sung-Hoon Ahn
Keyword(s):  
Three Dimensional ◽  
Alignment Algorithm ◽  
Three Dimensional Printing ◽  
Nano Scale ◽  
Printing System ◽  
Dimensional Printing

Vanillin-based thiol-ene systems as photoresins for optical 3D printing

2019 ◽  
Vol 26 (2) ◽  
pp. 402-408 ◽  
Author(s):  
Aukse Navaruckiene ◽  
Sigita Kasetaite ◽  
Jolita Ostrauskaite
Keyword(s):  
Mechanical Properties ◽  
Real Time ◽  
Design Methodology ◽  
Three Dimensional ◽  
Insoluble Fraction ◽  
Content Type ◽  
Three Dimensional Printing ◽  
First Time ◽  
Dimensional Printing ◽  
Kinetics Of

Purpose This study aims to present a design and investigation of novel vanillin-based thiol-ene photocurable systems as candidate materials for optical three-dimensional printing. Design/methodology/approach Two vanillin acrylates, vanillin dimethacrylate and vanillin diacrylate, were tested in thiol-ene photocurable systems with 1,3-benzenedithiol. The kinetics of photocross-linking was investigated by real-time photorheometry using two photoinitiators, diphenyl (2,4,6-trimethylbenzoyl)phosphine oxide or ethyl (2,4,6-trimethylbenzoyl)phenylphosphinate in different quantities. The dependencies of rheological properties of resins on the used vanillin derivative, photoinitiator, and the presence of a solvent, as well as structure, thermal and mechanical properties of the selected polymers were investigated. Findings The most rigid polymers were obtained from vanillin diacrylate-based resins without any solvent. The vanillin diacrylate-based polymer possessed higher values of cross-linking density, the yield of insoluble fraction, thermal stability and better mechanical properties in comparison to the vanillin dimethacrylate-based polymer. Originality/value The kinetics of photocross-linking of vanillin-based thiol-ene systems was investigated by real-time photorheometry for the first time. The designed novel photocurable systems based on vanillin acrylates and 1,3-benzenedithiol are promising renewable photoresins for optical three-dimensional printing on demand.

scholarly journals 3D printing in urology as a trend in personalized medicine

2021 ◽  
Vol 14 (3) ◽  
pp. 28-39
Author(s):  
B.G. Guliev ◽  
◽  
B.K. Komyakov ◽  
A.E. Talyshinskii ◽  
◽  
...  
Keyword(s):  
3D Printing ◽  
Three Dimensional ◽  
3D Models ◽  
Inclusion Criteria ◽  
Three Dimensional Printing ◽  
Current State ◽  
Dimensional Printing ◽  
And Training ◽  
Percutaneous Nephrolithotripsy

Introduction. 3D printing technology is being actively introduced into the urological practice. Apart from improving of patients counselling, this technology allows for improved planning end performance of surgery. Aim of study. To determine the current state of three-dimensional printing in the urological practice. Materials and methods. Embase, Medline, Google Scholar, Scopus databases were searched to find related publications until September 2020. Inclusion criteria were: the availability of the full article, the use of 3D models for teaching patients or residents, and their use in planning and performing surgery on patients over 18 years of age. Results. One hundred and ninety seven publications were included, of which 40 were selected for a further analysis. 11 articles were related to the study of the usefulness of printed models in counseling patients with urolithiasis, planning and training of retrograde lithotripsy and percutaneous nephrolithotripsy. In 20 articles, the printed model was used to counsel patients with renal neoplasms, planning and intraoperative navigation. In 9 papers, the results of the use of printed models in communication with patients with prostate tumor, in improving the determination of its localization and planning of the upcoming surgery were published. Conclusion. The creation of three-dimensional printed models is promising in urology. Despite the current limitations this field is becoming more accessible for both patients and doctors.

scholarly journals Design and Implementation of 3D Printing System for Continuous CFRP Composites

2018 ◽  
Vol 213 ◽  
pp. 01011 ◽  
Author(s):  
Ningda Han ◽  
Jun Cheng ◽  
Jiquan Yang ◽  
Yijian Liu ◽  
Wuyun Huang
Keyword(s):  
Carbon Fiber ◽  
3D Printing ◽  
Three Dimensional ◽  
Printing Technology ◽  
Printing Process ◽  
Three Dimensional Printing ◽  
Cfrp Composites ◽  
Continuous Carbon Fiber ◽  
Printing System ◽  
Dimensional Printing

The rapid and low-cost manufacturing of continuous Carbon Fiber Reinforced Polymer (CFRP) composites using 3D printing technology is a hot topic in the field of composite materials’ research. Due to the continuity and infusibility of the long carbon fiber, a series of problems such as loosening of fiber, breakage, and nozzle clogging occurred in the printing process, which result in poor surface quality and performance in the printed product. This paper aims to solve these problems based on the researches and optimizations of three-dimensional printing technology for continuous CFRP composite components. Firstly, the coupling mechanism of continuous fiber and resin polymer in the flow path of nozzle is analyzed, the finite element simulation models of flow field and temperature field of CFRP three-dimensional printing are established by using ANSYS CFX software, and the coupling characteristics and interface performance in the printing process are studied. Then, based on the results of simulation analysis, a modification method of the surface coating film is applied, and a special modification solution is configured to modify the surface of the carbon fiber so as to increase its strength and bondability with the molten resin. Finally, the mechanical structure of the three-dimensional printing system of continuous CFRP components is designed to achieve the synchronization of printing and fiber modification. Considering the continuity of continuous carbon fiber, this paper proposed a new method of printing path design called “unicursal” for continuous CFRP parts, that is, when designing and planning a three-dimensional print path, it ensured that there is no interruption in the printing process, so as to achieve carbon fiber continuity in composite parts. The reliability and superiority of the printing system designed in this paper are confirmed by printing of the composite parts.

Three-Dimensional Printing for Construction of Tissue-Equivalent Anthropomorphic Phantoms and Determination of Conceptus Dose

2018 ◽  
Vol 211 (6) ◽  
pp. 1283-1290 ◽  
Author(s):  
Matthew R. Hoerner ◽  
Matthew R. Maynard ◽  
Didier A. Rajon ◽  
Frank J. Bova ◽  
David E. Hintenlang
Keyword(s):  
Three Dimensional ◽  
Three Dimensional Printing ◽  
Tissue Equivalent ◽  
Anthropomorphic Phantoms ◽  
Dimensional Printing

Development of three-dimensional printing system for magnetic elastomer with control of magnetic anisotropy in the structure

2016 ◽  
Vol 55 (6S1) ◽  
pp. 06GP18 ◽  
Author(s):  
Fujio Tsumori ◽  
Hidenori Kawanishi ◽  
Kentaro Kudo ◽  
Toshiko Osada ◽  
Hideshi Miura
Keyword(s):  
Magnetic Anisotropy ◽  
Three Dimensional ◽  
Three Dimensional Printing ◽  
Printing System ◽  
Dimensional Printing

A novel fast disintegrating tablet fabricated by three‐dimensional printing

2009 ◽  
Vol 00 (00) ◽  
pp. 090730035508060-7
Author(s):  
Deng-Guang Yu ◽  
Chris Branford-White ◽  
Yi-Cheng Yang ◽  
Li-Min Zhu ◽  
Edward William Welbeck ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Three Dimensional Printing ◽  
Fast Disintegrating Tablet ◽  
Dimensional Printing
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