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Weld penetration control of wire-filled pulsed gas tungsten arc welding of pipe in the horizontal position

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Abstract

Wire-filled pulsed gas tungsten arc welding (GTAW-P) is usually used to join pipes in the horizontal position, in which uniform full penetration is required to guarantee a high weld quality. Based on the characteristic signals reflecting the penetration degree, the penetration control strategy of step welding is designed, and the dynamic modeling of backside molten pool width using the characteristic signals is conducted by back propagation (BP) neural network. The influence of step distance on the characteristic signals is explored. The weld is well shaped when the step distance is 3 mm. The backside weld width in the horizontal position can be controlled to be around the preset value with the control strategy of step welding and real-time feedback from the prediction of BP neural network. The control system is robust, which can work well under the fit-up condition of variable gap or variable heat dissipation in the horizontal welding of pipe.

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Data availability

The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.

Code availability

The codes are not publicly available due to the commercial restriction.

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Funding

This study is supported by the National Natural Science Foundation of China (Grant No.: 51505326) and Natural Science Foundation of Tianjin (Grant No.: 16JCQNJC04300).

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Authors and Affiliations

  1. Tianjin Key Laboratory of Advanced Joining Technology, Tianjin, 300354, China

    Zhijiang Wang, Zitong Zeng, Shaojie Wu, Chengfeng Wu, Dongpo Wang & Shengsun Hu

  2. School of Materials Science and Engineering, Tianjin University, Tianjin, 300354, China

    Zhijiang Wang, Zitong Zeng, Shaojie Wu, Chengfeng Wu, Dongpo Wang & Shengsun Hu

  3. Offshore Oil Engineering Co., Ltd, Tianjin, 300452, China

    Xinxin Shu

Authors
  1. Zhijiang Wang
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  2. Zitong Zeng
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  3. Shaojie Wu
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  4. Xinxin Shu
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  5. Chengfeng Wu
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  6. Dongpo Wang
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Contributions

Zhijiang Wang: Conceptualization, methodology, formal analysis, resources, writing (review and editing), funding acquisition, project administration. Zitong Zeng: Methodology, software, formal analysis, investigation, data curation, visualization, writing—original draft. Shaojie Wu: Formal analysis, validation, writing—review and editing. Xinxin Shu: Formal analysis, validation. Chengfeng Wu: Methodology, software. Dongpo Wang: Supervision. Shengsun Hu: Writing—review and editing.

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Correspondence to Zhijiang Wang.

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Wang, Z., Zeng, Z., Wu, S. et al. Weld penetration control of wire-filled pulsed gas tungsten arc welding of pipe in the horizontal position. Weld World 67, 1793–1807 (2023). https://doi.org/10.1007/s40194-023-01516-4

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  • DOI: https://doi.org/10.1007/s40194-023-01516-4

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