Comparative study on interactions between laser and arc plasma during laser-GTA welding and laser-GMA welding

被引：24
|
作者：
Chen, Minghua [1 ]
Xu, Jiannan [2 ]
Xin, Lijun [1 ]
Zhao, Zuofu [1 ]
Wu, Fufa [1 ]
机构：
[1] Liaoning Univ Technol, Sch Mat Sci & Technol, Jinzhou 121001, Peoples R China
[2] Liaoning Petrochem Vocat & Technol Coll, Dept Comp Sci & Technol, Jinzhou 121001, Peoples R China
来源：
OPTICS AND LASERS IN ENGINEERING | 2016年 / 85卷
基金：
中国国家自然科学基金;
关键词：
Laser-arc welding; Laser keyhole plasma; Spectral diagnosing; Mechanism; SPECTRAL-ANALYSIS; KEYHOLE BEHAVIOR; VAPOR PLUME; HYBRID; DYNAMICS; PULSE;
D O I：
10.1016/j.optlaseng.2016.04.006
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This paper describes an investigation on differences in interactions between laser and arc plasma during laser-gas tungsten arc (LT) welding and laser-gas metal arc (LM) welding. The characteristics of LT heat source and LM heat source, such as plasma behavior, heat penetration ability and spectral information were comparably studied. Based on the plasma discharge theory, the interactions during plasma discharge were modeled and analyzed. Results show that in both LT and LM welding, coupling discharge between the laser keyhole plasma and arc happens, which strongly enhance the arc. But, the enhancing effect in LT welding is much more sensitive than that in LM welding when parameters are adjusted. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1 / 8
页数：8
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