US 11,788,434 B2
Method for producing a casing for an aircraft turbine engine
Vincent Pascal Fiore, Moissy-Cramayel (FR); Gatien Frisoni, Moissy-Cramayel (FR); Foster Alexander Maxwell, Conway, NH (US); Steven Meserve, Ossipee, NH (US); and Jeffrey Steven Sherman, Durham, NH (US)
Assigned to SAFRAN AIRCRAFT ENGINES, Paris (FR); and SAFRAN AEROSPACE COMPOSITES, Rochester, NY (US)
Appl. No. 17/626,322
Filed by SAFRAN AIRCRAFT ENGINES, Paris (FR); and SAFRAN AEROSPACE COMPOSITES, Rochester, NH (US)
PCT Filed Jul. 10, 2020, PCT No. PCT/FR2020/051258
§ 371(c)(1), (2) Date Jan. 11, 2022,
PCT Pub. No. WO2021/009457, PCT Pub. Date Jan. 21, 2021.
Claims priority of provisional application 62/874,385, filed on Jul. 15, 2019.
Prior Publication US 2022/0243617 A1, Aug. 4, 2022
Int. Cl. F01D 25/24 (2006.01); B29C 65/00 (2006.01); B29L 31/00 (2006.01)
CPC F01D 25/24 (2013.01) [B29C 66/612 (2013.01); B29C 66/919 (2013.01); B29C 66/929 (2013.01); B29L 2031/7504 (2013.01); F05D 2220/323 (2013.01); F05D 2220/36 (2013.01); F05D 2230/60 (2013.01); F05D 2300/603 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for manufacturing a casing of an aircraft turbomachine, said casing comprising:
an annular shell extending about an axis and made of a composite material comprising fibres that are woven and immersed in a resin,
an annular layer comprising an abradable material arranged inside the shell, and covering a first inner annular surface of an intermediate section of the shell,
the method comprising a step of gluing the layer on the first surface, during which the casing is heated and compressed by means of a system that is present at least partially inside the casing,
wherein, prior to the heating and compression of the casing, a forming tool is mounted inside the casing and made of a first ring arranged inside the shell, and covering a second inner annular surface of an end section of the shell, and a second ring arranged inside the shell, and covering a third inner annular surface of another end section of the shell, said intermediate section being arranged between the two end sections.