FIELD: process engineering.
SUBSTANCE: invention relates to metallurgy, particularly, to production of vane core with at least one thin zone with thickness "e" located, in particular, on gas turbine vane rear edge. Proposed method comprises moulding mix made up of filler of ceramic particles and organic binder. Core is molded with thin zone beaded relative to thickness "e" by some surplus thickness E. core withdrawn from mould, binder is removed to cure core by thermal treatment. Surplus thickness is remove either by milling, or chipping core prior to hardening, or by grinding precalcinated core.
EFFECT: reduced number of defects and production costs.
10 cl, 9 dwg
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