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<p>The metal flow in ring section during profiled ring rolling process (PRRP) has an important influence on the final forming accuracy. For the geometric defects of the existing rolling process from rectangular blank to profiled ring, such as material shortage and unfilling, a 3D deformation analysis model of the rolling process in the main deformation zone is established based on the upper bound method under the assumption of parallel velocity field. Secondly, the influence of rolling zone geometry and process parameters on the metal flow was analyzed by energy. And the influence of section size, rolling ratio and feed amount on the geometrical defects in the PRRP was analyzed by upper bound method and response surface method. Finally, the finite element simulation and rolling test of a typical Y-shaped ring of aluminum alloy are carried out to verify the correctness of the model. The research results provide technical reference for section design, blank design and process design of PRRP.</p>

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Using upper bound method analyze the metal flow of Y-shaped ring rolling and forming progress optimization

  • 期刊论文

  • 发表日期：

    2025年3月10日

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  • Shicheng Ge,
  • Yunxin Wu,
  • Tao Zhang,
  • Tiewen Hao

摘要

The metal flow in ring section during profiled ring rolling process (PRRP) has an important influence on the final forming accuracy. For the geometric defects of the existing rolling process from rectangular blank to profiled ring, such as material shortage and unfilling, a 3D deformation analysis model of the rolling process in the main deformation zone is established based on the upper bound method under the assumption of parallel velocity field. Secondly, the influence of rolling zone geometry and process parameters on the metal flow was analyzed by energy. And the influence of section size, rolling ratio and feed amount on the geometrical defects in the PRRP was analyzed by upper bound method and response surface method. Finally, the finite element simulation and rolling test of a typical Y-shaped ring of aluminum alloy are carried out to verify the correctness of the model. The research results provide technical reference for section design, blank design and process design of PRRP.