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Arc Characteristic and Metal Transfer of Pulse Current Horizontal Flux-Cored Arc Welding

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Abstract

In this work, we utilized high-speed video photography to investigate the arc characteristics, metal transfer behavior, and welding spatter of the pulse-current flux-cored arc welding (P-FCAW) process in the horizontal position. The results indicate the presence of a stable “flux pole” during both the pulse-on and pulse-off periods when the mean current ranged from 140 to 170 A. The existence of this “flux pole” was beneficial for droplet transfer in the “axial droplet transfer” mode. With respect to welding spatter, with an increase in the welding current, we observed three kinds of spatter—explosive spatter, rebounded droplet spatter, and scattering spatter. With an increase in the pulse current from 310.6 to 345.6 A, the deflection of the arc reduced from 30.4° to 16.6°, which positively influenced the arc rigidity, particularly in the horizontal position.

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Authors and Affiliations

  1. School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China

    Fangjie Cheng, Shuai Zhang, Xinjie Di & Dongpo Wang

  2. Tianjin Key Laboratory of Advanced Joining Technology, Tianjin, 300072, China

    Fangjie Cheng, Shuai Zhang, Xinjie Di & Dongpo Wang

  3. China National Petroleum Offshore Engineering Co., Ltd, Tianjin, 300452, China

    Jun Cao

Authors
  1. Fangjie Cheng
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  2. Shuai Zhang
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  3. Xinjie Di
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  4. Dongpo Wang
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  5. Jun Cao
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Correspondence to Xinjie Di.

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Cheng, F., Zhang, S., Di, X. et al. Arc Characteristic and Metal Transfer of Pulse Current Horizontal Flux-Cored Arc Welding. Trans. Tianjin Univ. 23, 101–109 (2017). https://doi.org/10.1007/s12209-017-0039-0

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  • DOI: https://doi.org/10.1007/s12209-017-0039-0

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