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

Author

Zhitong, Wang ; Jian, Zhan ; Mingjiang, Yang

Author_Institution

Div. of Technol. Sci., Chinese Acad. of Sci., Beijing

Volume

36

Issue

5

fYear

2008

Firstpage

2816

Lastpage

2819

Abstract

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.

Keywords

arcs (electric); melting; plasma light propagation; plasma-wall interactions; electrode; laser-guided microarc discharge; polyethylene-covered surface; power density; surface melting; Atmosphere; Electrodes; Optical materials; Polyethylene; Shape control; Surface cracks; Surface discharges; Surface emitting lasers; Surface morphology; Voltage; Laser-guided micro discharge; surface condition of electrode; surface melting;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2008.2002033

Filename

4674694