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Roll profile design for shaped wire rolling with high aspect ratio

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Abstract

For a shape rolling process of products with a high aspect ratio, its width does not spread sufficiently, frequently resulting in the unfilling phenomenon in the width direction. This paper proposes a roll profile design for the shape rolling process; this design method improves the dimensional accuracy of a shape wire with a high aspect ratio. From among the products produced by the shape rolling process in industrial sites, those with aspect ratios of ≥ 3.3 were selected in this study, and finite element (FE) simulation of the shape rolling process was conducted to verify the effectiveness of proposed method. The results of the FE simulation showed that the proposed design method was effective in performing the rolling process for shapes with high aspect ratios. In addition, the effectiveness of the proposed method was verified by conducting an experiment for bridge-valve wire by using plasticine. The experimental results showed that target shapes were obtained with an unfilling rate as low as 0.23 % for the cross-sectional area.

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Acknowledgments

This study was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2019R1A5A6099595) and Technology development Program (S2610408) funded by the Ministry of SMEs and Startups (MSS, Korea).

Author information

Authors and Affiliations

  1. Precision Manufacturing Systems Division, Pusan National University, Busan, 46241, Korea

    Jeong-Hun Kim

  2. Engineering Research Center of Innovative Technology on Advanced Forming, Pusan National University, Busan, 46241, Korea

    Jae-Hong Kim

  3. Division of Marine Engineering, Korea Marine and Ocean University, Busan, 49112, Korea

    Kyung-Hun Lee

  4. School of Mechanical Engineering, Pusan National University, Busan, 46241, Korea

    Young-Hoon Moon

  5. Graduate School of Convergence Science, Pusan National University, Busan, 46241, Korea

    Dae-Cheol Ko

  6. Department of Nanomechatronics Engineering, Pusan National University, Busan, 46241, Korea

    Dae-Cheol Ko

Authors
  1. Jeong-Hun Kim
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  2. Jae-Hong Kim
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  3. Kyung-Hun Lee
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  4. Young-Hoon Moon
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  5. Dae-Cheol Ko
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Corresponding author

Correspondence to Dae-Cheol Ko.

Additional information

Jeong-Hun Kim received his M.S. degree of Mechanical Engineering in Pusan National University (Korea). Since 2016, He is currently a Ph.D. candidate of Department of Mechanical Engineering at Pusan National University (Korea). His research interests include cold forging, rolling, and drawing process.

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Kim, JH., Kim, JH., Lee, KH. et al. Roll profile design for shaped wire rolling with high aspect ratio. J Mech Sci Technol 34, 3609–3615 (2020). https://doi.org/10.1007/s12206-020-0813-0

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  • DOI: https://doi.org/10.1007/s12206-020-0813-0

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