Research Article
Laser Treatment for Strengthening of Thin Sheet Steel
Table 8
Parameters of local laser processing.
| | Depth h (mm) | Speed, (mm/min) | Frequency, f (Hz) | Single pulse energy, Ep (J) | Spot size, d (mm) | Peak power, Pp (kW) | Overlap coefficient, Per (%) | Calculated critical power, Pd1 (W/сm2) | Real critical power, Pd2, (W/сm2) |
| | 0.346 | 240 | 10 | 14.4 | 3 | 2.8 | 98.6 | 4.11∙105 | 3.98∙105 |
|
|
