Patent ID: 9512730
Filing Date: 2016-12-06
CPC Classification: B29C,F01D

Claim Text:
1. A method for manufacturing a thick turbine engine part in a composite material by injection of resin under pressure, comprising the following steps: positioning a fiber preform in a mold, injecting a resin composition into the mold, polymerizing the resin composition in the mold so as to obtain the part, and removing the part from the mold, wherein the method further comprises: prior to the injection of the resin composition, inserting a mold release shim between the fiber preform and a wall of the mold, said mold resin shim having two opposite faces converging towards a second face adapted for being positioned at the bottom of the mold, so as to form with the wall a non-zero draft angle, and between the polymerization of the resin composition and the removal of the part from the mold, extracting the mold release shim, wherein the wall of the mold comprises a channel for injecting the resin composition into the mold, wherein the mold release shim comprises at least one face having at least one guiding groove for guiding the injection resin composition, in order to facilitate circumvention of the mold release shim by the resin composition during the injection step, and wherein the at least one face having the at least one guiding groove is positioned in front of the injection channel.