10mm厚TC11钛合金电子束焊接熔池传热与流动行为研究

Research on Molten Pool Heat Transfer and Flow Behavior of Electron Beam Welding for 10mm Thick TC11 Titanium

采用ANSYS软件中的Flotran模块,建立了基于高斯面热源与峰值热流递增的旋转体热源相结合的新型复合热源模型,合理地模拟了10mm厚TC11钛合金平板的电子束焊接熔池传热与流动行为。结果表明:计算熔池边界与真实焊缝的熔合线轮廓吻合较好,均呈现电子束焊接典型的"钉子形"焊缝。

By the module of ansys software -Flotran, a new composite heat source model which is combined by the Gaussian surface heat source and the peak heat increment of rotation is established, and the 10mm thick TC11 flat electron beam welding pool heat transfer and flow behavior are simulated reasonably. The result indicates that the calculated weld pool boundary and the real contour of the weld fusion line agree well, with the nail-shaped weld both shown.