Fig. 1. Experimental setup

Fig. 2. Ablation morphologies of GFRP under different laser power densities at tangential air flow rate of 0.5 Ma. (a) 848 W/cm²;(b) 990 W/cm²; (c) 1131 W/cm²; (d) 1273 W/cm²; (e) 1414 W/cm²; (f) 1556 W/cm²

Fig. 3. GFRP perforation point temperature rise curves when tangential air flow rate is 0.5 Ma. (a) Laser power density is 848-1556 W/cm²; (b) partial enlargement of Fig. 3 (a)

Fig. 4. Perforation time of GFRP under different power densities with air flow rate of 0.5 Ma

Fig. 5. Ablation morphologies of GFRP under different tangential air flow rates with laser power density of 848 W/cm². (a) 0 Ma;(b) 0.2 Ma; (c) 0.4 Ma; (d) 0.6 Ma; (e) 0.8 Ma; (f) 1.0 Ma

Fig. 6. Temperature distributions on GFRP surface under different moments with laser power density of 848 W/cm². (a) 0 Ma;(b) 0.4 Ma; (c) 1.0 Ma

Fig. 7. Temperature rise curves of GFRP perforation point under different tangential air flow rates with laser power density of 848 W/cm². (a) 0-0.4 Ma; (b) 0.5-0.7 Ma; (c) 0.8-1.0 Ma

Fig. 8. Perforation time of GFRP under different tangential air flow rates with laser power density of 848 W/cm²