It relies on a beam of accelerating high-energy density electron flow impact on the workpiece, in the workpiece surface very small dense product generated by a huge heat, forming a "small hole" effect, thereby implementing deep welding. The main disadvantage of electron beam welding is the need for high vacuum environment to prevent electronic scattering, complex equipment, the size and shape of the solder parts are limited by the vacuum chamber, the quality of welding parts required strict, non-vacuum electron beam welding can also be implemented, but due to electronic scattering and focus on bad effect. Electron beam welding also has magnetic offset and X-ray problem, because the electronic electrification, will be affected by magnetic field deflection, it requires that the electron beam welder welding to the magnetic treatment.
X-rays are particularly strong under high pressure and need to be protected by operators. Laser welding does not require a vacuum chamber and the workpiece welding before the demagnetization treatment, it can be carried out in the atmosphere, there is no X-ray problem, so can be on-line operation in the production lines, but also welding magnetic materials.