Chinese Journal of Lasers, Volume. 31, Issue 2, 237(2004)
Study of Laser-Induced Plasma Behavior and Control During Laser Deep Penetration Welding of Powder Materials
The critical laser power density to induce plasma for different powders is studied in this article by means of fully-automatic laser welding machine LSM240. The powder components are FFe+15%TFe, FCo and FNi+15%TNi. The results show that the critical laser power density (I_C) to create plasma under the radiation of CO_2 laser beam for the three kinds of PM materials is I_ CFe>I_ CCo>I_ CNi, and the low critical gas flux Q_S is QFeS
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[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Study of Laser-Induced Plasma Behavior and Control During Laser Deep Penetration Welding of Powder Materials[J]. Chinese Journal of Lasers, 2004, 31(2): 237
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