FIELD: process engineering.
SUBSTANCE: invention relates to metallurgy. Proposed set of forming elements that form working and rear sides of vanes consists of two structures. First structure forming elements are made up of inserts fitted to make screw slots intended for forming vane working surface and impeller disk surface. Second structure forming elements are made up of vanes to form vane rear side. Forming elements are secured to outer and inner rings. Sais structures are assembly by rotation and disassembled by rotary translation on screw surface.
EFFECT: whole-moulded pattern with precise sizes at low costs.
3 dwg
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