Research on UV femtosecond pulsed laser cutting carbon fiber composite materials

Li, Yongdu; Shen, Yanfei; Huang, Yunsong; Zhao, Qingchun; Lu, Chao Tsang

doi:10.1117/12.2587252

Cited by 5 publications

(1 citation statement)

References 5 publications

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“…The results showed that the fiber damage of FRP and CFRP was slight and that a smooth cut surface was obtained. Yongdu Li et al [ 17 ] used a UV femtosecond laser to cut carbon fibers with a thickness of 2 mm, obtaining a HAZ of about 25 μm. They also used a single factor method to analyze the influence of laser average power, repetition frequency, and scanning speed on the cutting quality.…”

Section: Introductionmentioning

confidence: 99%

Femtosecond Laser Drilling of Cylindrical Holes for Carbon Fiber-Reinforced Polymer (CFRP) Composites

Jiang

et al. 2021

Molecules

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Ultrafast laser drilling has been proven to effectively reduce the heat-affected zone (HAZ) of carbon fiber-reinforced polymer (CFRP) composites. However, previous research mainly focused on the effects of picosecond laser parameters on CFRP drilling. Compared with a picosecond laser, a femtosecond laser can achieve higher quality CFRP drilling due to its smaller pulse width, but there are few studies on the effects of femtosecond laser parameters on CFRP drilling. Moreover, the cross-sectional taper of CFRP produced by laser drilling is very large. This paper introduces the use of the femtosecond laser to drill cylindrical holes in CFRP. The effect of laser power, rotational speed of the laser, and number of spiral passes on HAZ and ablation depth in circular laser drilling and spiral laser drilling mode was studied, respectively. It also analyzed the forming process of the drilling depth in the spiral drilling mode and studied the influence of laser energy and drilling feed depth on the holes’ diameters and the taper. The experimental results show that the cylindrical hole of CFRP with a depth-to-diameter ratio of about 3:1 (taper < 0.32∘, HAZ < 10 m) was obtained by using femtosecond laser and a spiral drilling apparatus.

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Section: Introductionmentioning

confidence: 99%

Femtosecond Laser Drilling of Cylindrical Holes for Carbon Fiber-Reinforced Polymer (CFRP) Composites

Jiang

et al. 2021

Molecules

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Research progress on laser processing of carbon fiber-reinforced composites

Zheng,

Wu,

et al. 2024

Int J Adv Manuf Technol

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Improving laser cutting quality of carbon fiber-reinforced plastics by improving laser beam pointing stability

et al. 2022

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.A heat-affected zone significantly reduces the mechanical properties of carbon fiber-reinforced plastics (CFRP). However, the beam quality, especially the stability of the beam pointing, limits the heat-affected zone (HAZ) minimization studies. In this study, the HAZ is reduced by improving the pointing stability of the laser beam. A beam pointing stabilization system (BPSS) based on position-sensitive devices and fast steering mirrors (FSMs) was developed. The research focuses on building a control model from the position-sensitive devices’ position deviation signals to the FSMs’ corrected control angles. The control model can detect and predict the beam pointing deviations and correct the attitudes of the FSMs to correct the beam pointing deviations, improving the beam pointing stability. The performance of the proposed BPSS and the corresponding control model were experimentally verified. The results indicate that the pointing deviations of the corrected beam in the X and Y directions are reduced by 78.08% and 70.28%, respectively. Additionally, the HAZ of CFRP processed with the corrected laser is reduced by 30.8%. The quality of the laser cutting of CFRP is significantly improved.

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Research on UV femtosecond pulsed laser cutting carbon fiber composite materials

Cited by 5 publications

References 5 publications

Femtosecond Laser Drilling of Cylindrical Holes for Carbon Fiber-Reinforced Polymer (CFRP) Composites

Femtosecond Laser Drilling of Cylindrical Holes for Carbon Fiber-Reinforced Polymer (CFRP) Composites

Research progress on laser processing of carbon fiber-reinforced composites

Improving laser cutting quality of carbon fiber-reinforced plastics by improving laser beam pointing stability

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