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

For details contact : 
   

    Head, Technology Transfer & Collaboration Division, 
    BHABHA ATOMIC RESEARCH CENTRE, 
    TROMBAY, MUMBAI - 400 085
    Tel : 091-022-25505337/25593897
    Fax : 091-022-25505151 
    Email : headttcd@barc.gov.in