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Effect of Surface Condition of Electrode on the Surface Melting of Material by Laser-Guided Micro-Arc Discharge

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3 Author(s)
Wang Zhitong ; Div. of Technol. Sci., Chinese Acad. of Sci., Beijing ; Zhan Jian ; Yang Mingjiang

This paper studies the surface melting in the atmosphere by YAG laser-guided micro-arc discharge. In three kinds of surface conditions (free, oiled, and polyethylene covered), we try to control the diameter and the power density of discharge pit. It is found that the power density of 3 times 106 W/cm2 of discharge pit on the oiled surface is moderate to form the melted layer thicker than that of the others, adapting to strengthen the surface of material, and the power density of 1.07 times 107 W/cm2 of discharge pit on the polyethylene-covered surface is highest to form the deepest discharge pit among them, adapting to remove the material.

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Plasma Science, IEEE Transactions on  (Volume:36 ,  Issue: 5 )