Abstract
The cable-type welding wire (CWW) submerged arc surfacing (SAS) is an innovative welding process with the advantages of high efficiency, energy saving, and good welding quality. At present, this welding process has been applied to repair the large structure. This study investigate the arc heat efficiency and arc heat distribution of CWW SAS using the mathematical calculation method. The deposition rate and the surfacing layer area of CWW SAS increases with the increasing welding current. The deposition rate and the surfacing layer area of CWW SAS are larger than those in single-wire SAS. The ratio of the surfacing layer area between CWW SAS and single-wire SAS is similar to the ratio of the surfacing deposition rates between CWW SAS and single-wire SAS. The efficiency of the arc heat on melting wire in CWW SAS is larger than that in single-wire SAS. The arc heat working on base metal in CWW SAS is lower than that in single-wire SAS, leading to a smaller molten base metal area. The arc heat working on droplet transfer in CWW SAS is greater than that in single-wire SAS, leading to a larger surfacing area.
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Funding
This work was supported by the National Science Foundation of the Jiangsu Higher Education Institutions of China (Grant no. 20KJB460015); Start-up Fund for New Talented Researchers of Nanjing Vocational University of Industry Technology (Grant no. YK19-01-04), and the National Natural Science Foundation of China (Grant no. 51575250).
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Yong Chen, Xianrui Zhao, Tao Zhang et al. Arc Heat Distribution in Cable-Type Welding Wire Submerged Arc Surfacing. Phys. Metals Metallogr. 124, 1826–1836 (2023). https://doi.org/10.1134/S0031918X22601500
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DOI: https://doi.org/10.1134/S0031918X22601500