FIELD: process engineering.
SUBSTANCE: invention relates to production of shaft for turbine and/or generator by welding and to shaft thus made. Shaft element 5 of one central part side confining its circular surface relative to rotational axis 2 is removed to produce at least one exposed cavity 11 in at least one cylinder 3 in the limits of left tube-shape rib 13. Two shaft elements 5 are located and aligned along rotational axis 2 to make hollow cavity 15. First tubular seam 17 is produced by arc welding into narrow clearance. Through hole 18 is made outside of one of two shaft elements opened into said hollow space 15. Quality of said first seam 17 is estimated from inside of said hollows space 15 during or after welding with the help of radiation receiver 19 or radiation source 19a inserted via through hole 18 in hollow space 15t.
EFFECT: direct control over welding.
14 cl, 2 dwg
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