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<p>This study investigates the springback behavior of GH3230 sheet under thermal V-shaped bending by a combination of physical experiments and numerical simulations. High-temperature tensile tests were conducted at various temperatures and strain rates to determine the basic material properties of GH3230 superalloy. V-shaped bending experiment was performed to assess the effects of forming temperature and rate on the springback behavior of GH3230 superalloy. An equal-size V-shaped bending model consistent with the experiment was established, and a springback simulation was carried out, which helped analyze the stress distribution and equivalent plastic strain during thermal V-shaped bending. The experimental results show that the temperature and rate significantly influence springback behavior. The springback angle at high temperature is much smaller than at room temperature, and it decreases further with increasing temperature. Additionally, an increase in forming rate helps reduce springback angle. Specifically at 1000&#xa0;°C and 120&#xa0;mm/min, the forming quality is optimal.</p>

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Study on Springback Behavior of GH3230 Superalloy Base on Thermal Bending Experiments

  • 期刊论文

  • 发表日期：

    2025年11月18日

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  • Ying Zhang,
  • Song Xue,
  • Qiankun Li,
  • Rongchao Li,
  • Wenfu Yuan

摘要

This study investigates the springback behavior of GH3230 sheet under thermal V-shaped bending by a combination of physical experiments and numerical simulations. High-temperature tensile tests were conducted at various temperatures and strain rates to determine the basic material properties of GH3230 superalloy. V-shaped bending experiment was performed to assess the effects of forming temperature and rate on the springback behavior of GH3230 superalloy. An equal-size V-shaped bending model consistent with the experiment was established, and a springback simulation was carried out, which helped analyze the stress distribution and equivalent plastic strain during thermal V-shaped bending. The experimental results show that the temperature and rate significantly influence springback behavior. The springback angle at high temperature is much smaller than at room temperature, and it decreases further with increasing temperature. Additionally, an increase in forming rate helps reduce springback angle. Specifically at 1000 °C and 120 mm/min, the forming quality is optimal.