The three major advantages in the electron beam welding process are:
- Low total energy
Low total energy
- A narrow fusion zone is produced by a high power-density electron beam. Total energy required is about 1/25 that of other types of fusion welding.
- Distortion of the workpiece is greatly minimized. Useful for precision fabrication.
- Property changes in the workpiece materials are greatly minimized.
- Confined heat energy permits welds close to heat-sensitive materials, such as plastics, glass-to-metal seals, electronic components, etc.
- Superior control over penetration and other weld dimensions and properties. Power range is more than 1000:1. See also Beamalloy’s TriBeam™ process.
- Long working distance permits welds in normally inaccessible places.
- Highly repeatable welds, produced with automatic control of weld parameters.
- A clean vacuum environment, less than 10 -4 mm Hg, eliminates oxides etc.
- Reactive materials, such as titanium and columbium, can be joined.
- Dissimilar materials can be joined. See Bi-Metallic Joints.
- Post weld clean-up and second operation machining are reduced or eliminated.