| GH909电子束焊接温度场的有限元分析 |
| |
| 引用本文： | 郭绍庆,李晓红,毛唯,颜鸣皋.GH909电子束焊接温度场的有限元分析[J].航空材料学报,2000,20(3):98-101. |
| |
| 作者姓名： | 郭绍庆 李晓红 毛唯 颜鸣皋 |
| |
| 作者单位： | 北京航空材料研究院,北京,100095 |
| |
| 摘 要： | 采用MARC有限元分析软件对GH909电子束焊接热过程进行了数值模拟.针对电子束焊不同于普通电弧焊的特殊加热方式,提出了小孔内壁受热的能量输入模式.与工件表面高斯分布的能量输入模式相比,该模式考虑了小孔形成对能量吸收的影响,因此所得到的模拟结果更好地反映了电子束焊缝的形状特点.
|
| 关 键 词： | 高温合金 电子束焊 数值模拟 温度场 |
| 修稿时间： | 2000-06-04 |
Finite element analysis of temperature fields in electron beam welding of alloy GH909 |
| |
| GUO Shao-qing,LI Xiao-hong,MAO Wei,YAN Ming-gao.Finite element analysis of temperature fields in electron beam welding of alloy GH909[J].Journal of Aeronautical Materials,2000,20(3):98-101. |
| |
| Authors: | GUO Shao-qing LI Xiao-hong MAO Wei YAN Ming-gao |
| |
| Abstract: | The transient heat transfer in electron beam welding of GH909 was numerically simulated by using the MARC Finite Element Analysis Software. According to the special heating mode in electron beam welding, which is quite different from arc welding, a model with energy transportation through cavity internal wall was presented. Compared with the mode of energy input obeying Gauss distribution on work piece surface, the new model takes into account the influences of cavity formation on energy absorption, so the simulation results demonstrate the geometry features of electron beam welding more pertinently. |
| |
| Keywords: | superalloys electron beam welding numerical simulation temperature fields |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
