Electron beam

Electron beam welding (EBW) is a fusion welding process in which a beam of high-velocity electrons is applied to the materials being joined.

The advantage of using electron beams is that the beam does not have a tendency to diverge when they contact the workpiece. It is very useful for welding high precision mechanical pieces.

Principle :

The workpieces melt as the kinetic energy of the electrons is transformed into heat upon impact, and the filler metal, if used, also melts to form part of the weld. The welding is often done in conditions of a vacuum to prevent dispersion of the electron beam. The electron beam is tightly focused, the electrons strike the workpiece and their energy is converted into heat. The heat penetrates deeply making it possible to weld. This process is widely used to weld large workpieces that requires slight distorsion.

Welding features :

Distortion is slight and the effect of welding on surrounding material is minimal.
Limit or eradicate returned welding pieces.
Welding quality better than most of other welding processes.
Almost all metal can be weld with this process.
Welding of thin and very thick workpieces (100 mm) in one go without consomable.

Electron beam

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