Electron Beam Welding

Electron beam welding (EBW) is a fusion welding process in which a beam of high-velocity electrons is applied to the materials being joined. The work-pieces melt as the kinetic energy of the electrons is transformed into heat upon impact. Raising electrons to a high energy by accelerating them to roughly 30 to 70 percent of the speed of light provides the energy to heat the weld. The beam penetrates deeply, making it possible to weld much thicker workpieces than is possible with other welding processes.

The electron beam is always generated in a high vacuum. Also the welding is most often done in vacuum to prevent dispersion of the electron beam. The high vacuum enables welding of higly reactive materials, like titanium or zirconium.
With high enough energy in the beam, welds up to 10 cm deep in stainless steel, or 30 cm in aluminium can be made, at width to depth ratio up to 30 : 1.

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    Updated 3 years 6 weeks ago

    The following paper displays a summary of illustrative presentation of electron beam welding. This presentation is a part of Days of Science, taking place regularly in ISI Brno, usually at the beginning of November. The visitors may see…

  • Electron beam welding of thin-walled parts

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  • Weldability of various materials

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    Updated 5 years 20 weeks ago

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    Updated 4 years 20 weeks ago

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  • Depth of weld

    Metalograpics cross-section of welding sample
    Updated 6 years 30 weeks ago

    The depth of penetration of electron beam into material (in solid state) depends on more factors. The most important of them are the total power of the beam and the power density in the cross-section of the beam (the focusation). It also…

  • Basic features of electron beam welding

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    The kinetic energy of fast moving electrons can be utilised as a source of heat for welding. The free electrons in vacuum can be accelerated by electric field and formed by magnetic lens into a narrow ray carrying high energy, which is transformed into…

  • Electron beam welder MEBW-60/2

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    Updated 6 years 31 weeks ago

    In the year 2005 the representatives of a German firm expressed their interest to include one of our electron beam welders into their production program. It was agreed that building of the prototype will be started at the beginning of the next year, but…

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