Dynamic bend angle (β) is an important parameter that should satisfy the range defined by the weldability window for successful joining in the explosive welding process. In this manuscript, we studied the dynamic bend angle (β) for the newly developed low velocity of detonation explosive welding (LVEW) process theoretically and then experimentally with the help of flash X-ray radiography (FXR) technique. The FXR system captured the real-time image of the event where proper explosive welding process with clear flight shape and appropriate collision bend angle was observed. The FXR results were in good agreement with numerically calculated β values and demonstrated the suitability of LVEW process for joining of dissimilar metal plates. This was further justified by phased array-based ultrasonic testing (PAUT) results where complete bonding area with slight non-bonded area was observed across the edges of the welded metal plate.

动态弯曲角（β）是重要参数，应满足可焊性窗口所定义的范围，以在爆炸焊接过程中成功接合。在本文中，我们从理论上研究了爆破爆炸焊接（LVEW）的低速过程的动态弯曲角（β），然后借助X射线射线照相（FXR）技术进行了实验研究。FXR系统捕获事件的实时图像，其中观察到正确的爆炸焊接过程，清晰的飞行形状和适当的碰撞弯曲角度。FXR结果与数值计算的β高度吻合值，并证明了LVEW工艺适用于异种金属板的连接。通过基于相控阵超声测试（PAUT）的结果进一步证明了这一点，在该结果中，在焊接的金属板的边缘上观察到了完整的粘合区域，而轻微的未粘合区域。