Integrated self-monitoring and self-healing continuous carbon fiber reinforced thermoplastic structures using dual-material three-dimensional printing technology

2020 ◽  
Vol 188 ◽  
pp. 107986
Author(s):  
Congcong Luan ◽  
Xinhua Yao ◽  
Chuck Zhang ◽  
Jianzhong Fu ◽  
Ben Wang
Keyword(s):  
Carbon Fiber ◽  
Three Dimensional ◽  
Self Healing ◽  
Fiber Reinforced ◽  
Printing Technology ◽  
Self Monitoring ◽  
Three Dimensional Printing ◽  
Continuous Carbon Fiber ◽  
Dual Material ◽  
Dimensional Printing

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.

scholarly journals Molding process and properties of continuous carbon fiber three-dimensional printing

2019 ◽  
Vol 11 (3) ◽  
pp. 168781401983569 ◽  
Author(s):  
Jun Zhang ◽  
Zude Zhou ◽  
Fan Zhang ◽  
Yuegang Tan ◽  
Renhui Yi
Keyword(s):  
Carbon Fiber ◽  
Fiber Composite ◽  
Three Dimensional ◽  
Fiber Composites ◽  
Carbon Fiber Composites ◽  
Carbon Fiber Composite ◽  
Molding Process ◽  
Three Dimensional Printing ◽  
Continuous Carbon Fiber ◽  
Dimensional Printing

Currently, carbon fiber composite has been applied in the field of three-dimensional printing to produce the high-performance parts with complex geometric features. This technique comprise both the advantages of three-dimensional printing and the material, which are light weight, high strength, integrated molding, and without mold, and the limitation of model complexity. In order to improve the performance of three-dimensional printing process using carbon fiber composite, in this article, a novel molding process of three-dimensional printing for continuous carbon fiber composites is developed, including the construction of printing material, the design of printer nozzle, and the modification of printing process. A suitable structure of nozzle on the printer is adjusted for the continuous carbon fiber composites. For the sake of ensuring the continuity of composited material during the processing, a cutting algorithm for jumping point is proposed to improve the printing path during process. On this basis, the experiment of continuous carbon fiber composite is performed and the mechanical properties of the printed test samples are analyzed. The results show that the tensile strength and bending strength of the sample printed by polylactic acid–continuous carbon fiber composites increased by 204.7% and 116.3%, respectively compared with pure polylactic acid materials, and those of the sample printed by nylon–continuous carbon fiber composites increased by 301.1% and 17.4% compared with pure nylon materials, and those of test sample by nylon–continuous carbon fiber composites under the heated and pressurized treatment increased by 383.6% and 233.2% compared with pure nylon material.

scholarly journals Characteristic of materials for the 3D printed building constructions by additive printing

2018 ◽  
Vol 222 ◽  
pp. 01013 ◽  
Author(s):  
Katarzyna Pacewicz ◽  
Anna Sobotka ◽  
Łukasz Gołek
Keyword(s):  
Building Materials ◽  
Raw Materials ◽  
New Technology ◽  
Setting Time ◽  
Three Dimensional ◽  
Construction Site ◽  
Printing Technology ◽  
Three Dimensional Printing ◽  
Materials Used ◽  
Dimensional Printing

Three dimensional printing is a promising new technology to erect construction objects. Around the world in every moment a new prototypes constructions are made by using this method. Three dimensional printing is taken into account as technology which can be used to print constructions in automated way on the Moon or Mars. The raw materials, which can be used with three dimensional printing have to fulfil basic requirements for those which are used in construction. That means that components of printing mortars are made from ingredients easily accessible in area nearby construction site and can be reusable. The cost of printing building objects due to that requirements is comparable to costs of traditional building, which are currently available. However additive techniques of printing needs a dedicated mortars for printer supplying. Characteristic for such mortars is: setting time, compressive strength, followability in the printing system, shape stability of every printed layer, controlling the hydration rate to ensure bonding with the subsequent layer, reusable capabilities, easily accessible raw materials, cost of such mixtures shouldn’t be too high in order to keep 3D printing competitive for traditional ways of building, mortar components should be recyclable and printing process should not influence negatively on an environment and people. All properties of printing mortars are determined by the device for additive application method. In this paper review of available materials used for three dimensional printing technology at construction site is presented. Presented materials were analysed in terms of requirements for building materials technology. Due to the lack of detailed information’s in available literature, regarding to the properties of raw materials, the results of this analysis may be used in the designing of new concrete mixtures for the use in three-dimensional printing technology for construction.

scholarly journals Generating brain matrices for zebra finch brain sectioning using three-dimensional printing technology

2019 ◽  
Vol 327 ◽  
pp. 108399
Author(s):  
Chun-Cheng Huang ◽  
Yi-Ying Chen ◽  
Yi-Ting Fang ◽  
Yu-Chi Chen ◽  
Chih-Ming Hung
Keyword(s):  
Zebra Finch ◽  
Three Dimensional ◽  
Printing Technology ◽  
Three Dimensional Printing ◽  
Dimensional Printing

scholarly journals Three-dimensional Printing in Maxillofacial Surgery: Hype versus Reality

2018 ◽  
Vol 9 ◽  
pp. 204173141877090 ◽  
Author(s):  
Alaa Aldaadaa ◽  
Nazanin Owji ◽  
Jonathan Knowles
Keyword(s):  
Maxillofacial Surgery ◽  
Three Dimensional ◽  
Review Of Literature ◽  
Printing Technology ◽  
Three Dimensional Printing ◽  
Dimensional Printing

Three-dimensional printing technology is getting more attention recently, especially in the craniofacial region. This is a review of literature enlightening the materials that have been used to date and the application of such technology within the scope of maxillofacial surgery.

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