FIELD: physics.
SUBSTANCE: invention relates to a fibrous blank of a gas turbine engine blade, as well as to a single-piece blade produced by such a blank, a blade wheel and a gas turbine engine containing such a blade. Fibre billet obtained by three-dimensional weaving comprises a first longitudinal section (41) configured to form a blade leg, second longitudinal section (42) extending upward the first longitudinal section and configured to form the blade feather portion, the first transverse portion (51) extending transversely from the connection between the first and second longitudinal sections and configured to form the first flange. At that, the first transverse section comprises a separated part containing upper wall (51b) and lower wall (51a), besides, insert (61) is located between upper and lower walls of the separated part of the first transverse section.
EFFECT: technical result consists in improvement of mechanical strength of article.
13 cl, 13 dwg
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