Electron Beam Surface Treatment
The modern electron beam welders are usually provided with computer controlled deflection system, which can position the beam very fast and accurate over the selected area of the work-piece surface. Thanks to the high speed of heating, only a thin surface layer of the material is influenced, e.g. for "hardened", annealing, tempering, texturing, polishing(with argon gas present) etc. If the electron beam is used to cut a shallow trough in the surface, then repeatedly moving horizontally along the trough at high speeds it creates a small pile of ejected melted metal at the end of the trough, Upon repetition spike structures can be created up to a millimeter high. These can aid bonding between different materials and modify surface roughness of the metal.
Read more about this topic: Electron Beam Technology
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