Abstract
Whenever a metal is irradiated with a laser beam, electromagnetic energy is
transformed into heat in a thin surface layer. The maximum surface temperature is the most important quantity which determines the processing result. Expressions for this maximum temperature are provided by the literature for stationary cases. In practice, however, moving beams are of more importance.
Based on a fast numerical algorithm which allows calculation of the induced
temperature profile, the maximum surface temperature for stationary and moving laser beams is calculated. Next, two types of approximating functions are presented relating the scanning speed to the maximum surface temperature. Using dimensionless numbers, the results can be applied to different materials.
transformed into heat in a thin surface layer. The maximum surface temperature is the most important quantity which determines the processing result. Expressions for this maximum temperature are provided by the literature for stationary cases. In practice, however, moving beams are of more importance.
Based on a fast numerical algorithm which allows calculation of the induced
temperature profile, the maximum surface temperature for stationary and moving laser beams is calculated. Next, two types of approximating functions are presented relating the scanning speed to the maximum surface temperature. Using dimensionless numbers, the results can be applied to different materials.
| Original language | English |
|---|---|
| Pages (from-to) | 1397-1406 |
| Number of pages | 10 |
| Journal | Optical and quantum electronics |
| Volume | 27 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 1995 |