Manufacturing and 3D printing of continuous carbon fiber prepreg filament
Manufacturing and 3D printing of continuous carbon fiber prepreg filament
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连续碳纤维预浸长丝的制造和3D打印
DOI：
10.1007/s10853-017-1624-2
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发表时间：
2018-02-01
影响因子：
4.5
通讯作者：
Peng, Fujun
中科院分区：
文献类型：
--
作者：
Hu, Qingxi;Duan, Yongchao;Peng, Fujun
目前的研究提出了一种打印连续碳纤维复合材料零件的新方法。首先，制造用于熔融沉积成型3D打印的连续碳纤维预浸长丝，然后修改3D打印机的挤出机头来打印长丝。此后，采用三点弯曲试验和响应面法研究长丝打印的复合材料部件的力学性能。经过测试，建立了数学模型来描述和分析打印参数（打印温度、打印速度和层厚）与打印复合材料零件的弯曲强度之间的关系。我们发现，采用指定打印参数的所提出的方法，打印复合材料的弯曲强度和弯曲模量显着提高，而在所有参数中，层厚度对最终弯曲强度的贡献最大。结果表明，所讨论的方法可能是打印 CCF 复合材料的一种有前途的方法。
The current research proposes a novel method for printing continuous carbon fiber composite parts. At first, continuous carbon fiber prepreg filament for Fused Deposition Modeling 3D printing was manufactured, followed by modification of extruder head of 3D printers to print the filament. Thereafter, three-point flexural test and Response Surface Methodology were adopted to study the mechanical properties of the composite parts printed with the filament. After testing, a mathematical model was developed to describe and analyze the relationship between the printing parameters (printing temperature, printing speed, and layer thickness) and the flexural strength of printed composite parts. We discovered that the flexural strength and flexural modulus of printed composites significantly improved with the proposed method with specified printing parameters, and while of all the parameters, the layer thickness had the greatest contribution towards the final flexural strength. The results indicate that the discussed method could be a promising approach to print CCF composites.