COMPOSITE BLADE AND METHOD OF IT MANUFACTURE Russian patent published in 2018 - IPC F01D9/02 

FIELD: machine industry.

SUBSTANCE: composite blade includes a body of 11 composite blade, which consists of composite material, including a thermosetting polymer or a thermoplastic polymer and reinforcing fibers, which is manufactured by molding, and a metallic covering 12 that is attached to the leading edge of section 11A, including a leading edge 11a of the composite blade body 11 and a blade surface 11b in the region of the leading edge 11a by means of an adhesive film 13, made by impregnating the mesh material with a solid sticker, so that the leading edge section 11A is covered, the unfilled section 11d, which is formed at the stage of removing part of the excess thickness 15 and 16, remaining on the leading edge 11a after molding, and does not need to be processed by rounding the leading edge, is placed on the leading edge 11a of the section 11A in the composite blade body 11.

EFFECT: it becomes possible to achieve a reduction in the duration of manufacturing and production costs.

3 cl, 4 dwg