Understanding factors affecting the process efficiency, quality and carbon emission in laser drilling of CFRP composite via tailored sequence multiple-ring scanning

Zhu, Menghui; Ouyang, Jinglei; Tian, Yingjun; Guo, Wei; Zhang, Zhizhou; Mativenga, Paul; Li, Lin

doi:10.1016/j.compositesb.2023.111156

Composites Part B: Engineering

2024

DOI: 10.1016/j.compositesb.2023.111156

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Understanding factors affecting the process efficiency, quality and carbon emission in laser drilling of CFRP composite via tailored sequence multiple-ring scanning

Menghui Zhu,

Jinglei Ouyang,

Yingjun Tian

et al.

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Cited by 5 publications

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Eco‐efficient recycling of carbon fibers from CFRP waste: A two‐step strategy by nanosecond pulsed laser

Li,

Yang,

Teng

et al. 2024

Polymer Composites

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The accumulation of CFRP waste poses significant environmental challenges, necessitating the development of green and efficient recycling technologies. This study employs a nanosecond pulse laser (λ = 1064 nm) to develop a two‐step laser recycling method (LRM) for CFRP. By setting stepped process parameters, the method sequentially completes the separation and cleaning of the CFRP layers, recovering carbon fibers that retain their original weave structure in just 147 s. The study delves into the characteristics of the products from the rapid laser pyrolysis of the epoxy resin matrix and unveils the interaction mechanisms between the pyrolysis products and recycled carbon fiber (rCF). The study utilized MATLAB to simulate the effects of defocusing on the distribution of laser energy and proposed an optimization strategy that balances product quality with efficiency. The results indicate that laser‐induced thermal decomposition leads to unique microscopic damage patterns in rCF, including microcracks, etching, and delamination. Cleanliness and resin removal rate serve as crucial indicators for quantitatively optimizing the process. The optimized LRM increased efficiency by 110.20% and achieved a resin removal rate of 97.92%, while maintaining rCF tensile strength and modulus retention rates at 93.38% and 105.77%, respectively. The energy consumption was only 13.77% of that required to produce virgin carbon fibers. The LRM operates under mild conditions without the need for harsh reaction conditions, enabling ultra‐fast on‐site recycling and offering a promising solution to the challenges of CFRP waste recycling.Highlights Using lasers for rapid delamination and cleaning of CFRP carbon fiber layers. The type and quantity of pyrolysis products significantly affect recovery quality. Laser‐induced resin pyrolysis oxidation damages carbon fibers. Laser energy compensation and defocusing strategies balance efficiency and quality.

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Eco‐efficient recycling of carbon fibers from CFRP waste: A two‐step strategy by nanosecond pulsed laser

Li,

Yang,

Teng

et al. 2024

Polymer Composites

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Research progress on laser processing of carbon fiber composite materials

Zuo,

Liu,

et al. 2024

Polymer Composites

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Carbon fiber reinforced polymer (CFRP) is a high‐performance composite material composed of carbon fibers embedded in a polymer matrix. CFRP is extensively used in various sectors such as aerospace, automotive, sports equipment, and construction due to its advantageous properties. Laser processing offers numerous advantages when working with carbon fiber‐reinforced composites, including its non‐contact nature, precision, efficiency, and controllability. However, disparities between carbon fibers and the polymer matrix can lead to challenges during laser processing, such as delamination, heat‐affected zones, and fiber pullout. Consequently, there is a substantial body of literature focusing on improving the quality and efficiency of laser processing for CFRP materials. This paper provides a comprehensive review of various studies investigating the impact of laser parameters (laser mode, pulse frequency, pulse width, and laser wavelength) on carbon fiber‐reinforced plastics. It discusses how different laser parameters affect the processing quality and performance of these materials. Additionally, drawing from recent research findings, the paper explores potential future trends in laser processing for carbon fiber‐reinforced plastics.Highlights The application of laser technology in CFRP, including laser cutting, drilling, welding, and surface treatment, has been extensively researched. A detailed discussion is held regarding the impact of laser mode, wavelength, frequency, and pulse width on the quality of machining. More auxiliary processing has evolved in CFRP manufacturing due to the ongoing advancements in laser technology. The goals of laser processing CFRP technology are increasingly focused on reducing carbon emissions, enhancing energy efficiency, and minimizing waste.

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A bibliometric analysis on drilling of composite materials using a systematic approach

Rahme

2024

Heliyon

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Understanding factors affecting the process efficiency, quality and carbon emission in laser drilling of CFRP composite via tailored sequence multiple-ring scanning

Cited by 5 publications

References 23 publications

Eco‐efficient recycling of carbon fibers from CFRP waste: A two‐step strategy by nanosecond pulsed laser

Eco‐efficient recycling of carbon fibers from CFRP waste: A two‐step strategy by nanosecond pulsed laser

Research progress on laser processing of carbon fiber composite materials

A bibliometric analysis on drilling of composite materials using a systematic approach

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