FIELD: process engineering.
SUBSTANCE: invention relates to metallurgy. Wax pattern (50) of turbomachine stator circular blade assembly comprises radially inner and outer coaxial shields (52) and (54) interconnected by blades (56), one of the latter (58) having inner cavity. To get wax patter, metal core (40) is arranged in metal mould to make the image of blade cavity (18), wax injected into the mould to withdraw wax patter with core (40) therefrom. Said core is arranged in said mould so that its radially inner end is located at mould section (58) that makes blade with cavity at a distance from radially inner end (52) of said mould section.
EFFECT: decreased amount of rejects.
7 cl, 7 dwg
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