Abstract
The prospects of using combined-type installations equipped with laser and electron-beam sources in the field of additive technologies are shown. The problem of broadening of the electron beam acting on the surface of the workpiece in a vacuum medium due to its scattering by particles of the evaporating material is considered. An analytical solution is obtained of the paraxial equation of the envelope of an electron beam undergoing scattering in the atmosphere of evaporated particles. The conditions are established that ensure stable transportation of the electron beam to the surface to be treated.
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