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What is Electron Beam Welding?

Electron Beam Welding

Electron beam welding (EBW) is an autogenous (no filler required) process that uses high velocity electrons to quickly melt and join metals with minimal heat input and very little distortion.

Electrons are generated by heating a filament in a high vacuum environment, and the resulting beam of electrons is accelerated, positioned and shaped by various electron optics devices as it travels to the weld joint. The kinetic energy of the electrons is converted to heat as they strike the weld joint. The electron optics allow focusing of the weld energy into a very small area, resulting in extremely high energy densities. An EBW analogy, most can identify with, is the Laser Welding System that controls the power and intensity of a focused stream of light... EBW precisely controls and focuses a dense stream of electrons.

By controlling key parameters using computer or manual controls, the same electron beam welding system can be utilized to perform many different industrial and R&D material joining applications. Many of these applications could not have been accomplished by other fusion systems.

Key controlled parameters include:

The electron beam must be generated in hard vacuum. The work piece can be in hard vacuum, partial vacuum, or at atmospheric pressure, based on the application's metallurgical and throughput requirements. The highest depth-to-width ratios and the longest distances between the beam generator and the weld joint are achieved with the work piece in a hard vacuum environment.

Advantages of EB Welding
Industries Using EBW:





This technical information has been contributed by
C. S. Industries

Click here to find suppliers

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