• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Engineering and Performance >Prediction of Forming Limit Diagrams for 22MnB5 in Hot Stamping Process
【24h】

Prediction of Forming Limit Diagrams for 22MnB5 in Hot Stamping Process

机译：热冲压过程中22MnB5成形极限图的预测

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Hot stamping of ultra-high strength steels possesses many superior characteristics over conventional room temperature forming process and is fairly attractive in improving strength and reducing weight of vehicle body product. However, the mechanical and failure behavior of hot stamping boron steel 22MnB5 are both strongly affected by strain hardening, temperature, strain rate, and microstructure. In this paper, the material yield and flow behavior of 22MnB5 within the temperature and strain rate range of hot stamping are described by an advanced anisotropic yield criterion combined with two different hardening laws. The elevated temperature forming limit diagram (ET-FLD) is constructed using the M-K theoretical analysis. The developed model was validated by comparing our predicted result with experimental data in the literature under isothermal conditions. Based on the verified model, the influence of temperature and strain rate on the forming limit curve for 22MnB5 steel under equilibrium isothermal condition are discussed. Furthermore, the transient forming limit diagram is developed by performing a transient forming process simulation under non-isothermal transient condition.
机译：与传统的室温成型工艺相比，超高强度钢的热冲压具有许多优越的特性，并且在提高强度和减轻车身产品的重量方面具有相当的吸引力。但是，热冲压硼钢22MnB5的机械性能和破坏行为都受到应变硬化，温度，应变速率和微观结构的强烈影响。在本文中，通过先进的各向异性屈服准则并结合两种不同的硬化规律，描述了22MnB5在热冲压温度和应变速率范围内的材料屈服和流动行为。使用M-K理论分析来构建高温成形极限图（ET-FLD）。通过在等温条件下将我们的预测结果与文献中的实验数据进行比较，验证了开发的模型。在验证模型的基础上，探讨了温度和应变速率对平衡等温条件下22MnB5钢成形极限曲线的影响。此外，通过在非等温瞬态条件下进行瞬态成形过程仿真来开发瞬态成形极限图。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号