Funct. Mater. 2016; 23 (3): 521-527.

http://dx.doi.org/10.15407/fm23.03.521

The influence of rotating magnetic field on the welding arc motion status

Zhi-gang Li1, Liang-ping Qiu1, Ji-zhong Liu2, Jian-xiong Ye3, Di-qing Wan1

1School of Mechanical Engineering, East China Jiaotong University, Jiangxi, Nanchang, 330013, P.R. China
2Jiangxi Robot & Welding Automation key Laboratory, Nanchang University, Jiangxi, Nanchang, 330013, P.R. China
3Electrical and Mechanical school, Nanchang Institute of Technology, Jiangxi, Nanchang, 330013, P.R. China

Abstract: 

A device generating rotating magnetic field is designed on the bas is of the mechanism of a rotating magnetic field. A rotating magnetic field and electric arc jointing together simulation is studied in this paper to elaborate arc characteristics and behavior under the action of a rotating magnetic field. The rotation radius of the arc are inversely proportional to the rotational frequency of the magnetic field. It is proportional to the field current. Due to constraint function of its own magnetic field of underwater wet welding arc. The influence on the underwater welding arc is smaller than the air welding arc while the magnetic field rotation frequency and magnetic field intensity is changed.

Keywords: 
welding arc; rotational magnetic field; simulation; underwater wet welding
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