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在本世纪四十年代末期,出现了一门新的加工工艺,就是利用电子束加工金属或非金属的技术。它的基本原理是:利用具有高速的束状电子流,撞击在工件表而上,这时电子受到阻挡而失去原有速度,它便把原有的动能转变成热能,使工件上被撞击的部位温度迅速升高,能达到使工件材料熔化的温度。利用这种方法进行材料的焊接或熔炼,就叫做电子束焊接或电子束熔炼;如温度再高,达到了使工件材料气化(升华)的温度,就能实现电子束切割、钻孔、铣削等加工。为了得到这个熔化或气化温度,不仅需要很高的电压
In the late 1940s, a new processing technology emerged that made use of electron beam to process metal or nonmetallic technology. Its basic principle is: the use of high-speed beam-like electron flow, impact on the workpiece table, then the electrons are blocked and lose their original speed, it will be the original kinetic energy into heat, the workpiece was hit Parts of the rapid temperature rise, to achieve the melting temperature of the workpiece material. Using this method for material welding or melting, called electron beam welding or electron beam melting; such as the temperature is high, the workpiece material to achieve the vaporization (sublimation) temperature, you can achieve electron beam cutting, drilling, milling Other processing. In order to obtain this melting or vaporization temperature, not only high voltages are required