Technology requirements of spaceflight fuel tank and weldability of TC4 titanic alloy were analyzed. The spaceflight fuel tank was successfully welded by electron beam welding(EBW).

• 通过对航天燃料储箱技术要求和TC4钛合金材料的焊接性能分析,应用电子束焊接方法成功焊接了航天燃料储箱。