Abstract
A pulsed Nd:YAG laser and a continuous diode laser were spatially superposed for higher absorption of laser beam to aluminum alloy. 12-20% increase in the bead width and 15-30% increase in the weld depth could be obtained by the superposition of continuous diode laser and pulsed Nd:YAG laser. Moreover, the unsteady thermal analysis with a key-hole effect indicated that the temperature of specimen surface with a continuous diode laser could be kept approximately 300K higher than that without a continuous diode laser. Therefore, it was clarified that the bead width and depth would increase greatly due to higher absorption of Nd:YAG laser to aluminum alloy by the superposition of a continuous diode laser.
| Original language | English |
|---|---|
| Pages (from-to) | 875-882 |
| Number of pages | 8 |
| Journal | Journal of Advanced Mechanical Design, Systems and Manufacturing |
| Volume | 4 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2010 |
Keywords
- Aluminum alloy
- High-efficient welding
- LD
- Pulsed Nd:YAG laser
- Thermal analysis
ASJC Scopus subject areas
- Mechanical Engineering
- Industrial and Manufacturing Engineering