ELECTRON-BEAM WELDING METHOD OF HETEROGENEOUS METAL MATERIALS Russian patent published in 2014 - IPC B23K15/00 B23K103/18 

FIELD: metallurgy.

SUBSTANCE: method involves the direction of an electron beam to a welded joint on its face side. The electron beam is diverted during welding towards the material with a negative thermoelectric potential at an acute angle φ(0) to the joint. A provision is made for the diversion from the joint of a beam axis on the reverse side of the welded part under an action of magnetic fields of thermoelectric currents at an angle equal to the above angle φ(0). The value of the angle φ(0) is determined depending on a charge and mass of an electron accelerating voltage, magnetic induction on the joint surface, thickness of the welded part and a coefficient considering parameters of the joint and heating temperature for each pair of heterogeneous materials.

EFFECT: invention allows improving the quality of weld joints from heterogeneous metals and alloys of large thickness with no lacks of penetration throughout the joint thickness.

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