FIELD: metallurgy.
SUBSTANCE: parts preassemble butt-to-butt and direct the electron beam to the joint. The electron beam is moved across the joint and make its scanning with frequency of 750-850 Hz along the diameter circle d=(0.6…0.8)h, where d - diameter of the scanning circle of the electron beam, mm; h - thickness of the welded parts, mm.
EFFECT: invention allows to eliminate nonuniform melting of the parts edges made of dissimilar metals, which causes nonuniform metals intermixing in the joint melt, which greatly reduces the strength of the joint in the finished product.
1 dwg
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