Interlayer bonding improvement of PEEK and CF-PEEK composites with laser-assisted fused deposition modeling

Yao，Jiahao1; Duongthipthewa，Anchalee1; Xu，Xuguang1; Liu，Menglong2; Xiong，Yi1; Zhou，Limin1

2024

10.1016/j.coco.2024.101819

Composites Communications   影响因子和分区

2452-2139

Fused deposition modeling (FDM) is a cost-effective additive manufacturing technique used to fabricate industrial-grade products with intricate designs using high-performance engineering plastics like Polyetheretherketone (PEEK) and their carbon fiber (CF)-reinforced composites. However, the inherent weak interlayer bonding in the FDM results in anisotropic properties, limiting the mechanical strength and hindering widespread applications. In this study, a layer-wise, in-process laser treatment is proposed to enhance the interlayer bonding in the FDM process of both PEEK and CF-PEEK composites. The laser-assisted process selectively treats previously deposited layers, significantly improving the interlayer bonding by enlarging surface contact, reducing voids, and increasing crystallinity. To validate the effectiveness of this method, tensile and bending tests are conducted, accompanied by observations of surface morphology, roughness analysis, and crystallinity measurements. The results demonstrate significant enhancements with over a 20 % increase in tensile strength and 10–20 % increase in bending strength for both materials. This hybrid additive manufacturing method revolutionizes the mechanical properties of printed parts and opens up new possibilities for processing PEEK and CF-PEEK composites.

Laser processing Material extrusion Poly-ether-ether-ketone Polymer composites

SCI

英语

第一 ; 通讯

National Natural Science Foundation of China[52105261] ; Department of Education of Guangdong Province[2022ZDZX3020]

Materials Science

Materials Science, Composites

WOS:001156787600001

ELSEVIER SCI LTD

MATERIALS SCIENCE

2-s2.0-85182571519

Scopus

1.School of System Design and Intelligent Manufacturing,Southern University of Science and Technology,Shenzhen,518055,China
2.School of Mechanical Engineering and Automation,Harbin Institute of Technology,Shenzhen,518055,China

Yao，Jiahao,Duongthipthewa，Anchalee,Xu，Xuguang,et al. Interlayer bonding improvement of PEEK and CF-PEEK composites with laser-assisted fused deposition modeling[J]. Composites Communications,2024,45.

Yao，Jiahao,Duongthipthewa，Anchalee,Xu，Xuguang,Liu，Menglong,Xiong，Yi,&Zhou，Limin.(2024).Interlayer bonding improvement of PEEK and CF-PEEK composites with laser-assisted fused deposition modeling.Composites Communications,45.

Yao，Jiahao,et al."Interlayer bonding improvement of PEEK and CF-PEEK composites with laser-assisted fused deposition modeling".Composites Communications 45(2024).