Electrical Characteristics of Plasma Plume During Pulse Wave Laser Welding

被引：0

作者：

Tong Liu ^{[1
]}

Lijun Yang ^{[1
]}

Shengbin Zhao ^{[1
]}

Yiming Huang ^{[1
]}

机构：

[1] School of Materials Science and Engineering,Tianjin University

来源：

Transactions of Tianjin University | 2019年 / 04期

关键词：

Pulse wave; Laser welding; Plasma plume; Electrical signal; Passive probe;

D O I：

暂无

中图分类号：

TN24 [激光技术、微波激射技术]; O53 [等离子体物理学];

学科分类号：

070204 ; 0803 ; 080401 ; 080901 ;

摘要：

To detect the real-time plasma plume during pulse wave Nd:YAG laser welding, experimental studies were conducted based on asynchronous signal acquisition system. The electrical signals of the laser-induced plasma plume were obtained by a passive acquisition system. The plume was directly observed and recorded using synchronous high-speed camera. The results showed that the waveform of the signals was in accordance with the periodical laser power. The signals decreased after the laser was turned on and fluctuated relatively steadily on the stable stage and then increased to 0 V after the laser beam was turned off. The decreasing time of the electrical signals was roughly 1.0 ms, and it decreased with the increasing peak power. However, the average power had insignificant effect on the signal decreasing time.

引用

页码：420 / 428

页数：9

共 13 条

[1]

激光等离子体无源电探针探测及光谱诊断的比较分析[J]. 刘桐,杨立军,王立君,王浪平.光谱学与光谱分析. 2014(02)

[2]

Analysis of plasma oscillations by electrical detection in Nd:YAG laser welding[J] . Shengbin Zhao,Lijun Yang,Tong Liu,Ruixia Yang,Jiajing Pan.Journal of Materials Processing Tech. . 2017

[3]

Efficient multiple time scale method for modeling compressible vapor plume dynamics inside transient keyhole during fiber laser welding[J] . Shengyong Pang,Xin Chen,Wen Li,Xinyu Shao,Shuili Gong.Optics and Laser Technology . 2016

[4]

Dynamics of vapor plume in transient keyhole during laser welding of stainless steel: Local evaporation, plume swing and gas entrapment into porosity[J] . Shengyong Pang,Xin Chen,Xinyu Shao,Shuili Gong,Jianzhong Xiao.Optics and Lasers in Engineering . 2016

[5]

Analysis of the correlation between plasma plume and keyhole behavior in laser metal welding for the modeling of the keyhole geometry[J] . F. Tenner,C. Brock,F. Kl?mpfl,M. Schmidt.Optics and Lasers in Engineering . 2015

[6] Real time monitoring of laser beam welding keyhole depth by laser interferometry [J].

Blecher, J. J. ;

Galbraith, C. M. ;

Van Vlack, C. ;

Palmer, T. A. ;

Fraser, J. M. ;

Webster, P. J. L. ;

DebRoy, T. .

SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2014, 19 (07) :560-564

[7] Review of laser welding monitoring [J].

You, D. Y. ;

Gao, X. D. ;

Katayama, S. .

SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2014, 19 (03) :181-201

[8] Investigation of keyhole plume and molten pool based on a three-dimensional dynamic model with sharp interface formulation [J].

Tan, Wenda ;

Bailey, Neil S. ;

Shin, Yung C. .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2013, 46 (05)

[9]

Measurements of laser-induced plasma temperature field in deep penetration laser welding[J] . Genyu Chen,Mingjun Zhang,Zhi Zhao,Yi Zhang,Shichun Li.Optics and Laser Technology . 2013

[10]

Spectroscopic, energetic and metallographic investigations of the laser lap welding of AISI 304 using the response surface methodology[J] . Domenico Rizzi,Teresa Sibillano,Paolo Pietro Calabrese,Antonio Ancona,Pietro Mario Lugarà.Optics and Lasers in Engineering . 2011 (7)

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