论文部分内容阅读
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.
A two-dimensional, transient model is proposed to study the dynamic process of keyhole formation and the material changes during both both laser-on and-off periods. 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.