GH909电子束焊接温度场的有限元分析

航空材料学报, 2000, 20(3): 98-101. doi: 10.3969/j.issn.1005-5053.2000.03.019

GH909电子束焊接温度场的有限元分析

郭绍庆 ^1, , 李晓红 ^2, , 毛唯 ^3, , 颜鸣皋 ^4,

1.北京航空材料研究院,北京,100095

2.北京航空材料研究院,北京,100095

3.北京航空材料研究院,北京,100095

4.北京航空材料研究院,北京,100095

关键词：高温合金 , 电子束焊 , 数值模拟 , 温度场

Finite element analysis of temperature fields in electron beam welding of alloy GH909

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.

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