US 11,891,342 B2
Method for manufacturing a part made of composite material with compliance control
Ludovic Philippe Liais, Moissy-Cramayel (FR); Nicolas Droz, Moissy-Cramayel (FR); and Michaël Podgorski, Moissy-Cramayel (FR)
Assigned to SAFRAN AIRCRAFT ENGINES, Paris (FR); and SAFRAN, Paris (FR)
Appl. No. 17/284,277
Filed by SAFRAN AIRCRAFT ENGINES, Paris (FR); and SAFRAN, Paris (FR)
PCT Filed Oct. 4, 2019, PCT No. PCT/FR2019/052364
§ 371(c)(1), (2) Date Apr. 9, 2021,
PCT Pub. No. WO2020/074813, PCT Pub. Date Apr. 16, 2020.
Claims priority of application No. 1859488 (FR), filed on Oct. 12, 2018.
Prior Publication US 2021/0387921 A1, Dec. 16, 2021
Int. Cl. C04B 35/80 (2006.01); C04B 35/117 (2006.01); C04B 35/14 (2006.01); C04B 35/18 (2006.01); C04B 35/185 (2006.01); C04B 35/447 (2006.01); C04B 35/488 (2006.01); C04B 35/565 (2006.01); C04B 35/58 (2006.01); C04B 35/584 (2006.01); C04B 35/626 (2006.01); C04B 35/628 (2006.01); C04B 35/64 (2006.01)
CPC C04B 35/80 (2013.01) [C04B 35/117 (2013.01); C04B 35/14 (2013.01); C04B 35/18 (2013.01); C04B 35/185 (2013.01); C04B 35/447 (2013.01); C04B 35/488 (2013.01); C04B 35/565 (2013.01); C04B 35/584 (2013.01); C04B 35/58071 (2013.01); C04B 35/62655 (2013.01); C04B 35/62892 (2013.01); C04B 35/62894 (2013.01); C04B 35/64 (2013.01); C04B 2235/3217 (2013.01); C04B 2235/3244 (2013.01); C04B 2235/3418 (2013.01); C04B 2235/3463 (2013.01); C04B 2235/3804 (2013.01); C04B 2235/3817 (2013.01); C04B 2235/3852 (2013.01); C04B 2235/447 (2013.01); C04B 2235/5224 (2013.01); C04B 2235/5228 (2013.01); C04B 2235/5232 (2013.01); C04B 2235/5244 (2013.01); C04B 2235/5248 (2013.01); C04B 2235/5256 (2013.01); C04B 2235/604 (2013.01); C04B 2235/616 (2013.01)] 14 Claims
OG exemplary drawing
 
1. Manufacturing method for a fibrous preform of a composite material part, the preform being obtained by:
forming a fibrous texture from refractory ceramic fibres,
shaping the fibrous texture in a mould cavity present in an injection tool,
injecting a slurry containing a refractory ceramic particle powder into the fibrous texture present in the mould cavity,
draining the liquid from the slurry that passed through the fibrous texture and retaining the refractory ceramic particle powder inside said texture so as to obtain a fibrous preform loaded with refractory ceramic particles,
first demoulding of the fibrous preform,
wherein the method also comprises, after the first demoulding of the fibrous preform, the following steps:
immersing the demoulded fibrous preform in a bath of a liquid suitable for decompacting the refractory ceramic particles present in the fibrous preform,
shaping the wet fibrous preform in a mould cavity present in an injection tool,
eliminating the liquid present in the fibrous preform,
additionally injecting a slurry containing a refractory ceramic particle powder into the fibrous preform present in the mould cavity,
draining the liquid from the slurry that passed through the fibrous preform and retaining the refractory ceramic particle powder inside said texture so as to obtain a fibrous preform loaded with refractory ceramic particles,
second demoulding of the fibrous preform.