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Proceedings Paper

Analysis on the variation of Ar and He plasma refractive index with temperature in CO2 laser beam welding
Author(s): Jinhe Liu; Fengming Zhang; Decai Yang
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Paper Abstract

According to the quasi-neutrality equation, the law of partial pressure, pressure equation, Saha equation and the principle of superposition on plasma refractive index, the Ar, He plasma's electron density, atom density, ion density and the variation of refractive index with changing of temperature are calculated when the pressure is 1,3,5,7 atm. respectively. Moreover it is analyzed that Ar, He plasma act on CO2 laser beam welding from the point of view that plasma and laser affect each other.

Paper Details

Date Published: 15 August 1998
PDF: 5 pages
Proc. SPIE 3550, Laser Processing of Materials and Industrial Applications II, (15 August 1998); doi: 10.1117/12.317913
Show Author Affiliations
Jinhe Liu, Northwestern Polytechnical Univ. (China)
Fengming Zhang, Northwestern Polytechnical Univ. (China)
Decai Yang, Northwestern Polytechnical Univ. (China)


Published in SPIE Proceedings Vol. 3550:
Laser Processing of Materials and Industrial Applications II
ShuShen Deng; S. C. Wang, Editor(s)

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