Abstract
Laser multi-beam processing of sheet metals is favorable for controlling the stress levels in the heated region through proper setting of the positions of laser beam spots at the heated surface. In the present study, thermal stress analysis of laser multi-beam heating of a moving steel sheet is investigated. Temperature and stress fields in the irradiated region are predicted using a finite element model. In the analysis, temperature dependent properties are used to account for the variable properties. It is found that presence of multi-spots at the surface modifies temperature and stress fields in the heated region, which is more pronounced with increasing intensity at the irradiated spots.
| Original language | English |
|---|---|
| Pages (from-to) | 446-452 |
| Number of pages | 7 |
| Journal | Optics and Lasers in Engineering |
| Volume | 51 |
| Issue number | 4 |
| DOIs | |
| State | Published - Apr 2013 |
Keywords
- Heating
- Laser
- Multi-beam
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Mechanical Engineering
- Electrical and Electronic Engineering