• 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 >Computational Analysis of Material Flow During Friction Stir Welding of AA5059 Aluminum Alloys
【24h】

Computational Analysis of Material Flow During Friction Stir Welding of AA5059 Aluminum Alloys

机译：AA5059铝合金搅拌摩擦焊接时流动的计算分析。

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

Workpiece material flow and stirring/mixing during the friction stir welding (FSW) process are investigated computationally. Within the numerical model of the FSW process, the FSW tool is treated as a Lagrangian component while the workpiece material is treated as an Eulerian component. The employed coupled Eulerian/Lagrangian computational analysis of the welding process was of a two-way thermo-mechanical character (i.e., frictional-sliding/plastic-work dissipation is taken to act as a heat source in the thermal-energy balance equation) while temperature is allowed to affect mechanical aspects of the model through temperature-dependent material properties. The workpiece material (AA5059, solid-solution strengthened and strain-hardened aluminum alloy) is represented using a modified version of the classical Johnson-Cook model (within which the strain-hardening term is augmented to take into account for the effect of dynamic recrystallization) while the FSW tool material (AISI H13 tool steel) is modeled as an isotropic linear-elastic material. Within the analysis, the effects of some of the FSW key process parameters are investigated (e.g., weld pitch, tool tilt-angle, and the tool pin-size). The results pertaining to the material flow during FSW are compared with their experimental counterparts. It is found that, for the most part, experimentally observed material-flow characteristics are reproduced within the current FSW-process model.
机译：计算研究了搅拌摩擦焊（FSW）过程中的工件材料流动和搅拌/混合。在FSW过程的数值模型中，将FSW工具视为拉格朗日分量，而将工件材料视为欧拉分量。所采用的焊接过程的欧拉/拉格朗日耦合计算分析具有双向热机械特性（即，摩擦滑动/塑性功耗散在热能平衡方程中用作热源），而允许温度通过与温度相关的材料属性影响模型的机械方面。工件材料（AA5059，固溶强化和应变硬化铝合金）使用经典Johnson-Cook模型的修改版本表示（其中增加了应变硬化项，以考虑到动态再结晶的影响） ），而FSW工具材料（AISI H13工具钢）被建模为各向同性的线弹性材料。在分析过程中，研究了一些FSW关键工艺参数的影响（例如，焊缝间距，工具倾斜角度和工具销钉尺寸）。将FSW过程中与物料流有关的结果与实验结果进行了比较。可以发现，在大多数情况下，在当前的FSW过程模型中都再现了实验观察到的材料流动特性。

著录项

  • 来源
    《Journal of Materials Engineering and Performance》 |2012年第9期|p.1824-1840|共17页
  • 作者

    M. Grujicic; G. Arakere; B. Pandurangan; J. M. Ochterbeck; C-F. Yen; B. A. Cheeseman; A. P. Reynolds; M. A. Sutton;

  • 作者单位

    Department of Mechanical Engineering, Clemson University, 241 Engineering Innovation Building, Clemson, SC, 29634-0921, USA;

    Department of Mechanical Engineering, Clemson University, 241 Engineering Innovation Building, Clemson, SC, 29634-0921, USA;

    Department of Mechanical Engineering, Clemson University, 241 Engineering Innovation Building, Clemson, SC, 29634-0921, USA;

    Department of Mechanical Engineering, Clemson University, 241 Engineering Innovation Building, Clemson, SC, 29634-0921, USA;

    Army Research Laboratory—Survivability Materials Branch, Aberdeen, Proving Ground, MD, 21005-5069, USA;

    Army Research Laboratory—Survivability Materials Branch, Aberdeen, Proving Ground, MD, 21005-5069, USA;

    Department of Mechanical Engineering, University of South Carolina, Columbia, SC, 29208, USA;

    Department of Mechanical Engineering, University of South Carolina, Columbia, SC, 29208, USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    friction stir welding; material-flow simulation and analysis; process modeling;

    机译：搅拌摩擦焊;材料流模拟与分析;工艺建模;

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