...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of thermal stresses >Thermoelastic deformation of three-layer combined die under steady-state temperature field
【24h】

Thermoelastic deformation of three-layer combined die under steady-state temperature field

机译：稳态温度场下三层组合模具的热弹性变形

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

Multiple forging cycles are required to reach a steady-state temperature distribution in forging dies, which can lead to thermoelastic deformation and impact on the dimensional accuracy of the final forging components. The steady-state temperature fields of a three-layer combined die with constant, convection, conduction and convection thermal boundary conditions were determined in the present study. Thermoelastic deformation and the contact stresses between layers were directly related to geometric and material properties, external stresses and the temperature distribution. Warm/hot and cold forging case studies were studied using finite-element analysis. In warm/hot forging, the contact stress of the steady-state temperature distribution was smaller than the hypothetical non-uniform temperature distribution. During cold forging, the difference in total deformation between steady-state and uniform temperature distributions at the same temperature was 0.025 mm, which may reduce the geometrical accuracy of cold forging parts.
机译：需要多个锻造循环才能达到锻模中的稳态温度分布，这可能导致热弹性变形并影响最终锻造零件的尺寸精度。在本研究中确定了具有恒定，对流，传导和对流热边界条件的三层组合模具的稳态温度场。层之间的热弹性变形和接触应力与几何和材料特性，外部应力和温度分布直接相关。使用有限元分析研究了冷热锻造案例。在热锻/热锻中，稳态温度分布的接触应力小于假设的非均匀温度分布。在冷锻过程中，同一温度下稳态和均匀温度分布之间的总变形差为0.025 mm，这可能会降低冷锻零件的几何精度。

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