Сибирский государственный университет
науки и технологий имени академика М.Ф. Решетнева

We study the methods of beam positioning at the joint during the Electron Beam Welding of dissimilar materials in the air. Traditional methods of automatic beam positioning at the joint are unacceptable in this type of welding because of the significant dispersion of electrons and the impossibility of the beam deviation inside the electron beam gun due to presence of an airlock. Magnetic fields of the current in the welded parts created by the beam's current are used to monitor the joint. During the electron beam welding of similar materials, the resulting magnetic field of the currents is proportional to the beam movement relative to the joint. However, this proportional relation no longer applies during the electron beam welding of dissimilar materials. We are proposing a method to compensate for the error in aligning the beam with the joint.