Cooling model and deformation study of 3D printing continuous carbon fiber composites

doi:10.19936/j.cnki.2096-8000.20250328.011

Abstract

Abstract: To investigate the dynamic cooling behavior and warping deformation behavior of 3D printed continuous carbon fiber reinforced plastic (C-CFRP). Firstly, a cooling model considering material properties and printing parameters for 3D printed C-CFRP composite wires was established in this paper. And thermocouples and thermal imagers were used to monitor the temperature changes of composite wires over time under different process parameters. The results were verified with the calculated values of the cooling model, with a minimum error of 11%. Then, the influence of different printed parameters and dimensions on warping were explored for 3D printed C-CFRP thin pieces, and the dynamic temperature changes and warping degree during the forming process were tested using thermocouples and coordinate measuring instruments. The results shown that the time when the extruded wire exceeds the glass transition temperature was positively correlated with the printing temperature and layer thickness, and negatively correlated with the printing speed; the warpage of C-CFRP thin films was positively correlated with layer thickness and length, but negatively correlated with printing temperature and printing speed. A reference for the development of 3D printed high-precision C-CFRP technology was provided in this article.

Key words: continuous carbon fiber composites, 3D printing, warping deformation, cooling model

CLC Number:

TB332

DONG Chuanhe, SUN Xiaoyu, LI Wangxin, JIA Ruihao, ZHAO Xin. Cooling model and deformation study of 3D printing continuous carbon fiber composites[J]. COMPOSITES SCIENCE AND ENGINEERING, 2025, 0(3): 79-86.

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