FIELD: process engineering.
SUBSTANCE: invention relates to welding and can be used in production of the shaft (1) for, for example, the turbine and/or generator. For welding joint between shaft parts inner circular seam (17) of shaft part hollow cylinders (3a) is made at arc welding of narrow gap by tungsten electrode in inert gas. Then, mid circular seam (21) and outer circular seam (19) are produced by arc welding of narrow gap with the help of consumable electrode in protective gas. Note here that axis (2) of rotation of rotor shaft (1) is kept vertically during the entire process of welding of shaft parts (5).
EFFECT: accelerated production, electrode savings.
5 cl, 2 dwg
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