摘要
旋转高斯曲面体热源模型,能较好的反映电子束焊接深熔焊的特点,但只能得到圆滑的“抛物”形焊缝。作者对此进行了改进,使其能较好的反映常见的“酒杯”形或“钉”形焊缝,并采用了ANSYS软件对平板电子束焊接温度场进行了数值模拟,同时从焊缝形貌及试验测得的热循环曲线进行验证,得到了与试验结果较吻合的温度场计算结果。
Rotary-Gauss body heat source model can show appropriately the character of electron beam deep penetration welding, but only smooth “parabola” shape weld can be obtained. It is improved to reflect general “wine-cup” or “nail” shape weld, and also numerically simulated temperature field distributions during electron beam welding of plate by using ANSYS, and it was validated with weld profile and thermal cycle curves measured. The results of calculations is in a good agreement with the experiment.
出处
《焊接学报》
EI
CAS
CSCD
北大核心
2005年第12期81-84,共4页
Transactions of The China Welding Institution
关键词
电子束焊接
热源模型
温度场
焊缝形貌
热循环曲线
electron beam welding
heat source model
temperature field
weld profile
thermal cycle curves
