Electron beam welding method and apparatus with a slit plate and measuring device for determining a location of the electron beam

摘要

An electron beam welding apparatus (100) includes an electron beam generator (104) for selectively emitting an electron beam (B) into a weld chamber (102). The electron beam welding apparatus (104) further includes a measuring device (108) for detecting an intensity of the electron beam (B) and a slit plate disposed between the electron beam generator (104) and the measuring device (108). The slit plate permits passage of the electron beam (B) through a slit formed in the slit plate, and the measuring device (108) determines a location of the electron beam (B) in dependence upon the detected intensity of the electron beam (B) passing through the slit. The electron beam welding device further includes thermally non-conductive and/or absorbing materials strategically placed between parts to be welded and all components of mechanical assemblies requiring precision location.