The method of blow, side protecting gas in laser deep welding is used to reduce the electronic density of plasma, also, the active flux in TIG can absorb electron.
激光深熔焊中侧吹保护气体方法用于降低等离子体中的电子密度抑制等离子体，TIG中活性焊剂也有吸收电子的作用。
The relations between the peak front surface blow off velocity, specific mass loss and incident fluence and electron energy for aluminum are discussed.
讨论了波的传播规律，并给出了铝材迎光面反冲速度峰值及比质量亏损与电子束的入射通量和能量之间的关系。
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