Based on the metal melt and vaporized interface 2d propagation mechanism, this paper founds the pulsed laser welding model.

基于金属材料熔化、汽化界面二维扩展机制建立了脉冲激光的焊接模型。

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Methods: Electrochemical technique was adopted to detect the changes of anode polarization curves of TA2 and TC4 after welding with laser or pulsed tungsten argon arc.

方法：采用动电位极化技术，分别测定激光焊接及脉冲氩弧焊接TA2和TC4后，材料阳极极化曲线的变化。

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