Investigation on heat transfer and ablation mechanism of CFRP by different laser scanning directions

IF 14.2 1区材料科学 Q1 ENGINEERING, MULTIDISCIPLINARY

Composites Part B: Engineering Pub Date : 2023-08-01 DOI:10.1016/j.compositesb.2023.110827

Peng Wang , Zhen Zhang , Bo Hao , Shichuan Wei , Yu Huang , Guojun Zhang

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引用次数: 10

Abstract

Carbon fiber reinforced plastic (CFRP) is widely applied to aviation, medical, and motorbike industry fields, thanks to its excellent performances of mechanical properties and corrosion resistance. Nanosecond pulsed laser is an efficient method for machining microchannels and holes in CFRP plates. The anisotropic heat transfer of CFRP leads to a complex mechanism of laser machining under different scanning directions (0°, 30°, 45°, 60°, 90°). A numerical model considering heterogeneity and anisotropy of nanosecond laser processing CFRP was established by COMSOL Multiphysics. By comparison of simulation and experiments under different scanning directions, the deviation of microchannel width between simulation and experimental ranges from 5.01% to 16.99%. The ablation mechanism of laser processing CFRP under different scanning directions was investigated. It demonstrates that the width of the heat affected zone (HAZ) and ablation increases with the scanning angle increasing, while decreasing with the scanning speed increasing. In addition, when compared to the scanning direction of 90°, the processing efficiency increases by 55.36%, while the width of the HAZ decreases by 55.01% when compared to the scanning direction of 0°. An optimal laser scanning speed of 630 mm/s is used to obtain the open hole with minimal HAZ and thermal damage.

Abstract Image

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不同激光扫描方向对CFRP传热及烧蚀机理的研究

碳纤维增强塑料(CFRP)以其优异的机械性能和耐腐蚀性被广泛应用于航空、医疗、摩托车等工业领域。纳秒脉冲激光是加工CFRP板微通道和微孔的有效方法。CFRP的各向异性传热导致不同扫描方向(0°、30°、45°、60°、90°)下的激光加工机理复杂。利用COMSOL Multiphysics建立了纳秒激光加工CFRP的非均质性和各向异性的数值模型。通过不同扫描方向下的仿真与实验对比，仿真与实验的微通道宽度偏差范围为5.01% ~ 16.99%。研究了不同扫描方向下激光加工CFRP的烧蚀机理。结果表明:热影响区宽度和烧蚀宽度随扫描角度的增大而增大，随扫描速度的增大而减小;此外，与90°扫描方向相比，加工效率提高了55.36%，而热影响区宽度比0°扫描方向减小了55.01%。采用630 mm/s的最佳激光扫描速度获得最小热影响区和热损伤的裸眼。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Composites Part B: Engineering 工程技术-材料科学：复合

CiteScore

24.40

自引率

11.50%

发文量

784

审稿时长

21 days

期刊介绍： Composites Part B: Engineering is a journal that publishes impactful research of high quality on composite materials. This research is supported by fundamental mechanics and materials science and engineering approaches. The targeted research can cover a wide range of length scales, ranging from nano to micro and meso, and even to the full product and structure level. The journal specifically focuses on engineering applications that involve high performance composites. These applications can range from low volume and high cost to high volume and low cost composite development. The main goal of the journal is to provide a platform for the prompt publication of original and high quality research. The emphasis is on design, development, modeling, validation, and manufacturing of engineering details and concepts. The journal welcomes both basic research papers and proposals for review articles. Authors are encouraged to address challenges across various application areas. These areas include, but are not limited to, aerospace, automotive, and other surface transportation. The journal also covers energy-related applications, with a focus on renewable energy. Other application areas include infrastructure, off-shore and maritime projects, health care technology, and recreational products.