电子束焊接是一种在真空环境下，利用汇聚的高速电子流轰击工件接缝处产生的热能，使被焊金属熔合的焊接方法。
Electron beam welding is an advanced welding technology , which fusing metal with heat energy which caused by convergent high speed electron stream bombarding joint of work pieces .
高速电子流