电子束焊是利用会聚的高速电子流轰击工件接缝处所产生的热能,使金属熔合的一种焊接方法。电子轰击工件时,动能转变为热能。电子束作为焊接热源有2个明显的特点:1)功率密度高。电子束焊接时常用的加速电压范围为30~150kV,电子束电流20~1000mA,电子束焦点直径约为0·1~1mm,这样, Electron beam welding is the use of convergence of high-speed electron flow shelled workpiece seam at the heat, so that a metal welding method of welding. When the electron bombardment of the workpiece, kinetic energy into heat. E-beam as a welding heat source has two obvious characteristics: 1) high power density. Electron beam welding commonly used acceleration voltage range of 30 ~ 150kV, beam current 20 ~ 1000mA, the focal point of the electron beam diameter of about 0.1 ~ 1mm, so,