Electron beam welding (EBW) is a non-conventional joining technique where the heat required for fusion is obtained from the impingement of high energy electrons. Electrons generated by thermionic emission are accelerated and focused with the help of electric and magnetic fields in high vacuum. The focused beam is directed towards the weld seam. By controlling the accelerating voltage, beam current, focusing coil current and the weld speed, the weld geometry can be precisely controlled. The 2kW, 25 kV compact EBW machine with small footprint is indigenously developed at Bhabha Atomic Research Centre and the technology and knowhow is available for transfer to Industry. This machine is suitable for Welding of Small, Miniature and Precision Jobs.

1. 2 kW Electron beam Welding Machine
2. Tungsten cathode for longer operating hours
3. Quick cathode replacement
4. Automated Beam Deflection and Oscillation control
5. Ease of operation due to inherent design safety features
6. Maximum depth of penetration of around 2-3 mm in stainless steel and 1 – 2 mm in Copper

Electron beam welding (EBW) is a non-conventional joining technique where the heat required for fusion is obtained from the impingement of high energy electrons. Electrons generated by thermionic emission are accelerated and focused with the help of electric and magnetic fields in high vacuum. The focused beam is directed towards the weld seam. By controlling the accelerating voltage, beam current, focusing coil current and the weld speed, the weld geometry can be precisely controlled. The 2kW, 25 kV compact EBW machine with small footprint is indigenously developed at Bhabha Atomic Research Centre and the technology and knowhow is available for transfer to Industry. Indigenous manufactured machines costing nearly a third of the imported machines and could prove a cost effective solution to help the domestic industry to improve product quality.

The EBW process is modern welding process carried out in vacuum environment and is most suitable for welding of refractory, reactive and difficult to weld materials and alloys (such as Nb, Ti, Zr alloys etc.).

1. Welding of reactive, refractory metals, dissimilar metals and special alloys in vacuum environment.
2. Low heat affected zone.
3. Low residual stress.
4. Low distortion.
5. Suitable for material with very high conductivity such as Copper.
6. Suitable for repetitive jobs.
7. Final manufacturing process and No need of post weld machining or heat treatment.

1. EB Welding can be used for welding of reactive, refractory metals, dissimilar metals and special alloys in vacuum environment.
2. It can also be used for dissimilar metal joints.
3. EBW is most suitable for material with very high conductivity such as Copper.
4. Welding of Similar and Dissimilar materials (SS, AL, Cu, Zr, Nb etc.) with maximum depth of penetration of around 2-3 mm in SS and 1-2 mm in Cu.

1. 2 kW Electron beam Welding Machine.
2. Tungsten cathode for longer operating hours.
3. Quick cathode replacement.
4. Automated Beam Deflection and Oscillation control.
5. Ease of operation due to inherent design safety features.
6. Maximum depth of penetration of around 2-3 mm in stainless steel and 1 – 2 mm in Copper.

1. Floor Space required for integration and testing.
2. Good and precision mechanical fabrication facility.
3. Electrical test and measurement equipment such as Multimeters, Clamp on Meters, Oscilloscope, Megger.
4. Utilities like compressed air, electrical power.