Chinese Optics Letters, 2015, 13 (8): 081403, Published Online: Sep. 14, 2018
Modeling of dynamic process in the laser-off period during laser drilling Download: 695次
000.4430 Numerical approximation and analysis 140.3330 Laser damage 140.3390 Laser materials processing 160.3900 Metals
Abstract
A two-dimensional, transient model is proposed to study the dynamic process of keyhole formation and the material changes during both the laser-on and -off periods. The keyhole shape, temperature field, and velocity field are analyzed. The results indicate that the dynamic changes of the target material in the laser-off period have a great influence on the final structure of the keyhole.
Tingzhong Zhang, Xiaowu Ni, Jian Lu. Modeling of dynamic process in the laser-off period during laser drilling[J]. Chinese Optics Letters, 2015, 13(8): 081403.