Method for manufacturing a variable-pitch composite blade for a

Details Method for manufacturing a variable-pitch composite blade for a Method for manufacturing a variable-pitch composite blade for a

1996-10-29

2000-03-14

Cuda, I

Metal working

Method of mechanical manufacture

Impeller making

298897, 29889, B23P 1500

Patent

active

06035531&

ABSTRACT:
The method includes the following steps: producing a preform of the blade comprising a blade root section for connecting to a hub and an aerodynamically profiled main blade section, the preform including, in the blade root section, a pile of fabrics transverse to the span axis of the blade projecting with respect to the blade root section, so as to form a pitch control lever; arranging the preform in an injection mold; injecting a thermosetting liquid resin into the mold; and heating the mould to make the thermosetting resin set.

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