Study of Laser-Induced Plasma Behavior and Control During Laser Deep Penetration Welding of Powder Materials

[in Chinese]; [in Chinese]; [in Chinese]; [in Chinese]; [in Chinese]

Journals >Chinese Journal of Lasers >Volume 31 >Issue 2 >Page 237 > Article

Chinese Journal of Lasers
Vol. 31, Issue 2, 237 (2004)

Study of Laser-Induced Plasma Behavior and Control During Laser Deep Penetration Welding of Powder Materials

[in Chinese]^*, [in Chinese], [in Chinese], [in Chinese], and [in Chinese]

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[in Chinese]

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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 Copy Citation Text

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Abstract

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

Keywords

critical laser power density laser deep penetration welding laser-induced plasma powder metallurgy

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