Droplet Transfer and Microstructure of Q235 Steel Thick Plate Using CO2 Welding with Additional Longitudinal Magnetic Field Controlling

Abstract:

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In this paper, a new welding experiment is studied by applying an additional longitudinal electromagnetic field to CO2 welding process (abbr. LEM-CO2 welding).The characteristics of droplet transfer, macrostructure and microstructure are compared between LEM- CO2 welding and general CO2 welding on Q235 low carbon steel thick plate joint. The research results shows that, an additional longitudinal magnetic field can have a significant effect on properties of the droplet transfer in CO2 welding, the frequency and stability of the droplet transfer in LEM-CO2 welding are improved. The grains of welding seam are refined and welding joints has a higher quality. So the additional longitudinal magnetic field is a very simple and effective method to improve the properties of CO2 welding thick plate joint.

Info:

Periodical:

Advanced Materials Research (Volumes 102-104)

Edited by:

Guozhong Chai, Congda Lu and Donghui Wen

Pages:

451-454

DOI:

10.4028/www.scientific.net/AMR.102-104.451

Citation:

Q. Luo et al., "Droplet Transfer and Microstructure of Q235 Steel Thick Plate Using CO2 Welding with Additional Longitudinal Magnetic Field Controlling", Advanced Materials Research, Vols. 102-104, pp. 451-454, 2010

Online since:

March 2010

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Price:

$35.00

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