FIELD: machine building.
SUBSTANCE: group of inventions relates to a method of making a rotary machine component and component (1) itself having at least one inner passage (7), which extends from center (6) to boundary surface (42) of the component and is at least partially closed. According to the method, a blank is provided, which comprises boundary surface (42) and an upper surface. Performing the first stage of subtractive machining, at which part of passage (7) is made by means of mechanical treatment, which at least comprises opening (71) of passage (7) into boundary surface (42). There is also a notch in the upper surface, after which pass (7) is completed by processing by building on the workpiece.
EFFECT: inventions are aimed at creation of component by method ensuring its reliability in working condition.
15 cl, 5 dwg
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