• 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 >Post-Superplastic Forming Analysis Under Different Loading Paths. Part One: Uniaxial Loading Case
【24h】

Post-Superplastic Forming Analysis Under Different Loading Paths. Part One: Uniaxial Loading Case

机译：不同加载路径下的超塑性后成形分析。第一部分：单轴加载箱

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

In a previous work, an optimization approach for superplastic forming based on a multiscale stability criterion, and yielding a variable strain rate loading path instead of the commonly used constant strain rate one, was presented. The approach was experimentally validated using the AZ31 magnesium alloy, where it was proven effective in reducing forming time without sacrificing the uniformity of deformation. In this work, the validation process is taken to a different level, where the post-superplastic forming mechanical properties, often ignored in superplasticity, become the criteria. The material is first superplastically deformed under uniaxial loading at an elevated temperature, following both loading paths; constant strain rate versus optimized variable strain rate. Thereafter, specimens extracted from the deformed material are tested at room temperature to evaluate the changes in mechanical properties, in reference to those of the as-received material. The results emphasize on the necessity of a combined forming and post-forming analysis in optimizing the superplastic forming process.
机译：在先前的工作中，提出了一种基于多尺度稳定性准则的超塑性成形的优化方法，该方法可以产生可变的应变速率加载路径，而不是通常使用的恒定应变速率路径。该方法已使用AZ31镁合金进行了实验验证，被证明可有效减少成形时间而不牺牲变形的均匀性。在这项工作中，验证过程被带到了不同的水平，超塑性后形成的力学性能（通常在超塑性中被忽略）成为了标准。首先，在两条加载路径下，材料在高温单轴加载下发生超塑性变形。恒定应变率与优化的可变应变率。此后，从变形材料中提取的样品在室温下进行测试，以评估机械性能的变化，参考所接受材料的变化。结果强调了在优化超塑性成形过程中将成形与成形后分析相结合的必要性。

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