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A study on sidewall penetration of cable-type welding wire electrogas welding

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Abstract

Cable-type welding wire (CWW) electrogas welding (EGW) is an innovative process in which CWW is used as the consumable electrode. Seven wires can be melted simultaneously with only one welding power source, one wire feeder, and one welding torch. This paper reports a study of the sidewall penetration of CWW EGW. The results showed that all the mechanical properties of CWW EGW welded joints met the standards of the China Classification Society (CCS). The arc heating area of CWW EGW was large and that the unique rotating arc of CWW EGW had a strong stirring effect, enhancing convective motion of the molten pool and accelerating heat transfer between the superheated molten pool and the sidewall. The droplet of the CWW EGW appeared to be non-axial transfer due to the rotating force. The superheated droplet transferred to the sidewall or the molten pool near the sidewall directly, promoting the heating and melting of the base metal.

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Acknowledgements

The authors are grateful for the financial support for this research from the National Natural Science Foundation of China (grant nos. 51575250 and 51275224), Prospective Joint Research Project of Jiangsu Province of China (grant no. BY2015065-06), Collaborative Innovation Center of Ship Technology of China (grant no. HZ20160020), and Priority Academic Program Development of Jiangsu Higher Education Institutions of China.

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Authors and Affiliations

  1. Provincial Key Lab of Advanced Welding Technology, School of Materials Science and Engineering, Jiangsu University of Science and Technology, 2 Mengxi Road, Zhenjiang, Jiangsu, 212003, China

    Yong Chen, Chenfu Fang, Zhidong Yang, Jiayou Wang, Mingfang Wu & Shujin Chen

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  1. Yong Chen
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  2. Chenfu Fang
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  3. Zhidong Yang
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  4. Jiayou Wang
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  5. Mingfang Wu
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  6. Shujin Chen
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Correspondence to Chenfu Fang.

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Recommended for publication by Commission XII - Arc Welding Processes and Production Systems

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Chen, Y., Fang, C., Yang, Z. et al. A study on sidewall penetration of cable-type welding wire electrogas welding. Weld World 61, 979–986 (2017). https://doi.org/10.1007/s40194-017-0479-0

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  • DOI: https://doi.org/10.1007/s40194-017-0479-0

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