Study of the Effect of Active Fluxes in Gas Tungsten Arc Welding

Jian Hao; Zhen Luo; Xian Zheng Bu; Jian Wu Zhang

doi:10.4028/www.scientific.net/AMR.189-193.3579

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 189-193Study of the Effect of Active Fluxes in Gas...

Study of the Effect of Active Fluxes in Gas Tungsten Arc Welding

Abstract:

In order to investigate the effect of active fluxes on weld penetration, angular distortion and weld morphology in gas tungsten arc welding (GTAW), three types of oxide fluxes-CaO, TiO₂ and Al₂O₃-were used in the welding of 5mm think stainless steel plates. Those powders were applied through a thin layer of the flux to produce a bead on plate welds. The results showed that compared with conventional TIG welding, increased weld penetration and reduced angular distortion of the weld piece were obtained with the application of active fluxes. However, the weld morphology was not changed significantly when the powders were coated on the surface of steel. It was also found that each of the powders has a fittest range in penetration increment. Whether the rate of the coating run out of the range, the effects of these active fluxes on the increased weld penetration were not obvious. The CaO flux has a narrow effective range for deep penetration, while the Al₂O₃ powder does have no effect on A-TIG penetration. The mechanism of those different performances has not been found out. According to the investment, the mechanism of active fluxes for the increased weld penetration and reduced angular distortion is related to the contraction of the arc.

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Periodical:

Advanced Materials Research (Volumes 189-193)

Pages:

3579-3582

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.189-193.3579

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Online since:

February 2011

Authors:

Jian Hao, Zhen Luo, Xian Zheng Bu, Jian Wu Zhang

Keywords:

Active Fux, Arc Contraction, A-TIG, Increased Penetration

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References

[1] B.Y. Kang, Yarlagadda K.D.V. Prasad and M.J. Kang: J. Mater. Process. Technol, Vol. 209(2009), pp.4722-4727.

Google Scholar

[2] Y. Takeuchi, R. Takagi, and T. Shinoda: Welding J, Vol. 71(1992), pp.283-289.

Google Scholar

[3] Ding Fan, Ruihua Zhang, Yufen Gu, and M. Ushio: Trans. JWRI, Vol. 30, pp.35-40.

Google Scholar

[4] D.S. Howse and W. Lucas: Sci. Technol. Weld. Joining, Vol. 5(2000), p.189–193.

Google Scholar

[5] S.P. Lu, F. Hidetoshi, and N. Kiyoshi: Metall. Mater. Trans. A, Vol. 35A(2004), pp.2861-2866.

Google Scholar

[6] D. W Han, J. X Zhang, in: Preparation and Display Technology of Metallographic Specimen (In Chinese), edtied by Zhong Nan Publications, China, ChangSha (2005), in press.

Google Scholar

[7] Mollicone. P, Camilleri D, Grayand TGF, and Comlekci T: J. Mater. Process. Technol, Vol. 176(2006), p.77–86.

Google Scholar