FIELD: machine building.
SUBSTANCE: group of inventions relates to the hydraulic machine rotating part manufacturing method, to the manufactured by this method hydraulic machine rotating part, and the energy conversion plant. Rotating part (202) is contained in the hydraulic machine (20) of the hydraulic energy conversion plant into electric energy or mechanical energy. Part (202) comprises blades (208) distributed around the part (202) rotation axis (Z202) and extending from the leading edge to the trailing edge. Part (202) manufacturing method includes stages, at which manufacturing from steel each blade (208) first part (208A), which forms its leading edge, manufacturing the blade second part (208C) from material other than steel and attaching it to the blade first part to form the trailing edge. Part (208C) has cross section in the form of the symmetrical sharpening.
EFFECT: group of inventions is aimed at increase in the machine efficiency and dynamic load on the blades reduction, which can lead to the formation of cracks.
10 cl, 8 dwg
