Cutting parameters | Laser power pL (W) | 3000 | Cutting velocity (m/min) | 1 - 5 | Spot diameter w0 (μm) | 110 |
Q235-A | specific heat c (J/kg×K) | 482 | thermal conductivity k (W/m×K) | 59.5 | Melting temperature Tm (K) | 1753 |
Density ρ (kg/m3) | 7860 | Fusion latent L (kJ/kg) | 272 | Ambient temperature Ta (K) | 293 | |
Dimensionless parameters | power PA | 60 | velocity Pe | 0.153 - 0.764 | latent St | 0.39 |