Kinetic description of keyhole plasma in laser welding

被引：17

作者：

Dilthey, U

Goumeniouk, A

Lopota, V

Turichin, G

机构：

[1] Univ Aachen, ISF Welding Inst, D-52062 Aachen, Germany

[2] St Petersburg Tech Univ, Dept Laser Technol, St Petersburg 195251, Russia

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2000年 / 33卷 / 21期

关键词：

D O I：

10.1088/0022-3727/33/21/312

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This paper deals with the theoretical analysis of plasma phenomena in the keyhole during laser welding. The mathematical model based on the kinetic equation for optical discharge is presented. The influence of the beam intensity and the keyhole radius on the plasma properties is shown. The temperatures of the plasma electrons, delivered by the model, correspond to the experimental data.

引用

页码：2747 / 2753

页数：7

共 15 条

[1]

Abramowitz M., 1964, HDB MATH FUNCTIONS

[2] The effect of plasma formation on beam focusing in deep penetration welding with CO2 lasers [J].