Electron Beam Welding Machine

Electron Beam Welding (EBW) is a process where a focussed beam of High Energy Electrons delivers its energy to the weld Zone.

BARC has indigenously developed 3kW to 24kW, EBW Machine with vacuum chamber of size 1000 X 1000 X 1500 mm; X-Y table control is possible by CNC from 0.1 to 2 m/min. It has stepper motor driven rotary table (300 to 900) also variations in specifications can be done on request.

Main features of the EB Welding machine are:

• This is a Multidisciplinary Technology involving:
  
  
  • High power electron Guns.
    
  • Vacuum Technology.
    
  • Precision Engineering.
    
  • High Voltage stabilized DC Power Source.
    
  • Modern Electronic Control Systems.
    
    
• High power density -105 w/mm2 (TIG Welding requires 1-2 w/mm2).
  
  
• High welding speeds (1-6 m/min depending upon material and its thickness).
  
  
• Deep penetration welding up to 30 mm in single pass.
  
  
• Maximum weld penetration up to 60 mm of steel.
  
  
• Suitable for welding of very reactive materials (Ti, Zr, Hf etc.), thin materials (0.1 mm), thick to thin materials and dissimilar materials.
  
  
• EBW requires no filler material, joint preparation and post weld machining.
  
  
• Vacuum chamber (10-2 to10-5 torr) provides oxide/ slag/ void free welds controlling the purity of materials.
  
  
• Low weld affected zone.
  
  
• Low heat input (1/10th of TIG) provides negligible deformation/ distortion specially for finished parts.
  
  
• Welding possible in inaccessible locations.
  
  
• Design available for 30 KV to 150 kV machines.
  

For further information please contact :

Head,
Technology Transfer & Collaboration Division,
Bhabha Atomic Research Centre,
Trombay, Mumbai - 400 085
Tel : 091-022-25505337/25593897
Fax : 091-022-25505151
E-mail : headttcd@barc.gov.in