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Study on quarter-wave control of DP980 steel based on a bending force linear combination strategy

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Abstract

The high-order flatness defect of DP980 dual phase steel in the tandem cold rolling process has a great influence on the stability of strip production and the stable production of the following process. In this paper, a multipass simulation model based on ABAQUS was used to study the bending force of the S1 to S4 stands on the strip elongation deviation of DP980 in the process of cold rolling. The simulation results show that the work roll bending force (WRB) and the intermediate roll bending force (IRB) have different effects on strip elongation deviation. After fitting the regulation curve of the strip profile with the sixth-order polynomial and tenth-order polynomial, a bending force linear combination control strategy was established, which could only control the thickness of the quarter-wave defect position. The experimental results show that this strategy can reduce quarter-wave flatness defects from 18.22 to 10.87 IU.

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The authors confirm that the data and material supporting the findings of this work are available within the article.

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Funding

This work was financially supported by the National Natural Science Foundation of China (Grant No. 52004029) and Fundamental Research Funds for the Central Universities (FRF-TT-20–06).

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Authors and Affiliations

  1. National Engineering Research Center for Advanced Rolling and Intelligent Manufacturing, University of Science and Technology Beijing, Beijing, 100083, China

    Wenquan Sun, Luzhen Chen, Anrui He, Chao Liu & Tieheng Yuan

  2. China Academy of Machinery Science and Technology, 2 Shouti Nanlu, Haidian District, Beijing, 100044, China

    Qiang Yi

Authors
  1. Wenquan Sun
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  2. Luzhen Chen
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  3. Anrui He
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  4. Chao Liu
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Contributions

Wenquan Sun provided the simulation data, organized the experiment, and completed the draft; Luzhen Chen analyzed the simulation data; Anrui He instructed the revision of the draft; Chao Liu helped to verify the accuracy of the FEM; Yi Qiang provided constructive suggestions on experiments; and Tieheng Yuan helped collect data in production enterprises.

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Correspondence to Wenquan Sun.

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Sun, W., Chen, L., He, A. et al. Study on quarter-wave control of DP980 steel based on a bending force linear combination strategy. Int J Adv Manuf Technol 127, 2881–2892 (2023). https://doi.org/10.1007/s00170-023-11637-1

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