Effect of copper- and calcium-based hydroxyapatite additives on femtosecond laser ablation of CFRP
DOI:
https://doi.org/10.20535/iwccmm2026357852Ключові слова:
carbon fiber-reinforced polymer, femtosecond laser ablation, hydroxyapatite additives, epoxy matrix, ablation efficiency, precision machining, CFRPАнотація
This study investigates the effect of copper- and calcium-based hydroxyapatite additives in the epoxy matrix on the femtosecond laser ablation behavior of carbon fiber-reinforced polymers. Single-layer CFRP laminates containing 1 and 5 wt. % of hydroxyapatite modifiers were prepared and processed using a 1030 nm, 200 fs laser, while ablation efficiency and surface quality were evaluated by optical profilometry. The best performance was achieved for the Cu-based additive system, which showed maximum ablation efficiency at 10.9–11.4 J/cm2 and a higher ablation depth of 31.8 μm compared with 23.8 μm for the unmodified composite. The results demonstrate that hydroxyapatite-modified CFRP is promising for precision laser cutting and milling of functional composite parts with low thermal damage and good dimensional quality.
Посилання
Kartal, F. (2025). Abrasive water jet machining of Carbon Fiber-Reinforced PLA composites: Optimization of machinability and surface integrity for High-Precision applications. Polymers, 17(4), 445. https://doi.org/10.3390/polym17040445
Baklan, D., Myronyuk, O., Bilousova, A., Šlevas, P., Minkevičius, J., Ulčinas, O., Orlov, S., & Vanagas, E. (2025). Femtosecond laser ablation of Copper-Hydroxyphosphate-Modified CFRP. Materials, 18(21), 4879. https://doi.org/10.3390/ma18214879
