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Electron beam welding, EBW

Joining process done in a vacuum chamber by the heat generated by an electron beam.

Illustration of Electron beam welding, EBW

The process

The workpiece is positioned in a vacuum chamber [1] to eliminate the risk of collision between the electron beams [2] and air particles, which would lead to splitting of the electrons in the beam and thus lowering the efficiency.

The electron beam is generated by an electron gun and focused through a magnetic field to the part of the workpiece to be welded. The beam’s narrow cross section and high energy can produce very narrow and deep welds.