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<p>To investigate the influence of process parameters on the forming quality of 30CrMoA drive shafts by cross wedge rolling (CWR), theoretical and experimental studies were conducted on the CWR of stepped shafts. First, thermal simulation experiments were performed to establish the constitutive relationship of 30CrMoA alloy steel. Subsequently, a simplified finite element model was developed to simulate the CWR forming process of the drive shaft. Using this validated model, the distributions of stress and strain fields under various rolling temperatures and reductions in area (RA) were simulated and analyzed. Experimental tests were carried out to verify the accuracy of the simulation results. The results indicate that controlling the RA within 20 to 40% and increasing the rolling temperature to 1100&#xa0;°C can improve forming quality and reduce defects. This study provides a theoretical basis for optimizing the CWR process and promotes the application of this technology in manufacturing high-strength alloy steel drive shafts.</p>

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Influence of Process Parameters on the Forming Characteristics of 30CrMoA Drive Shafts by Cross Wedge Rolling

  • 期刊论文

  • 发表日期：

    2026年4月9日

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  • Song Zhang,
  • Hongchang Guo,
  • Xuedao Shu,
  • Jinrong Zuo,
  • Bizhou Mei,
  • Guobiao Wang

摘要

To investigate the influence of process parameters on the forming quality of 30CrMoA drive shafts by cross wedge rolling (CWR), theoretical and experimental studies were conducted on the CWR of stepped shafts. First, thermal simulation experiments were performed to establish the constitutive relationship of 30CrMoA alloy steel. Subsequently, a simplified finite element model was developed to simulate the CWR forming process of the drive shaft. Using this validated model, the distributions of stress and strain fields under various rolling temperatures and reductions in area (RA) were simulated and analyzed. Experimental tests were carried out to verify the accuracy of the simulation results. The results indicate that controlling the RA within 20 to 40% and increasing the rolling temperature to 1100 °C can improve forming quality and reduce defects. This study provides a theoretical basis for optimizing the CWR process and promotes the application of this technology in manufacturing high-strength alloy steel drive shafts.