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Shape-property synergistic control in closed die forging of large-diameter copper alloy valve body

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Abstract   

The parameters of the forging process play a crucial role in determining the appearance quality and macro/micro properties of parts. This study focuses on closed die forging of large-diameter copper alloy valve bodies, where finite element (FE) simulation and experimentation are combined to demonstrate that both workpiece cross-section and punch action sequence significantly impact forming processes and their results. By setting reasonable forging process parameters, including die temperature, workpiece temperature, a cross-section of the workpiece, punch speed, punch action sequence, and so on, forming defects, can be avoided, macroscopic mechanical properties of products can be enhanced, and the microstructure of materials can be improved. Forging process parameters include speed, temperature, and pressing force, which in turn affect stress, strain, strain rate, and temperature distributions as well as the appearance quality and macro/micro properties of the valve body. Therefore, the rational setting of process parameters can achieve the purpose of shape-property synergistic control (SPSC).

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Acknowledgements

The authors would like to acknowledge the Ningbo Amico Copper Valves Manufacturing Inc. for assisting with the experiment.

Funding

This work was supported by the Natural Science Foundation of Zhejiang Province (Grant No. LQ19E040002), the Natural Science Foundation of Ningbo (Grant No. 2019A610175), and the Scientific Research Fund of Zhejiang Provincial Education Department (Grant No. Y201839249).

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Authors and Affiliations

  1. School of Mechanical Engineering, Ningbo University of Technology, Ningbo, China

    Yin Jing & Wu Haibao

  2. Part Rolling Key Laboratory of Zhejiang Province, Ningbo University, Ningbo, China

    Shu Xuedao

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  1. Yin Jing
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  2. Wu Haibao
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  3. Shu Xuedao
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Contributions

Yin Jing designed the work, processed the experimental data, and drafted the article. Wu Haibao did the preparation for the experiment. Shu Xuedao made a critical revision of the article.

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Correspondence to Yin Jing.

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Jing, Y., Haibao, W. & Xuedao, S. Shape-property synergistic control in closed die forging of large-diameter copper alloy valve body. Int J Adv Manuf Technol 128, 2137–2146 (2023). https://doi.org/10.1007/s00170-023-11873-5

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  • DOI: https://doi.org/10.1007/s00170-023-11873-5

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