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1. (WO2017149251) INSTALLATION AND METHOD FOR FORMING AN AXISYMMETRIC FIBROUS PREFORM EXHIBITING, IN RADIAL SECTION, A PROFILE THAT EVOLVES
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Pub. No.: WO/2017/149251 International Application No.: PCT/FR2017/050469
Publication Date: 08.09.2017 International Filing Date: 02.03.2017
IPC:
B29B 11/16 (2006.01) ,B29C 53/56 (2006.01) ,B29C 70/32 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
B
PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
11
Making preforms
14
characterised by structure or composition
16
comprising fillers or reinforcements
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
53
Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
56
Winding and joining, e.g. winding spirally
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
70
Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
04
comprising reinforcements only, e.g. self-reinforcing plastics
28
Shaping operations therefor
30
Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
32
on a rotating mould, former or core
Applicants:
SAFRAN AIRCRAFT ENGINES [FR/FR]; 2 boulevard du Général Martial Valin 75015 PARIS, FR
Inventors:
FABRE, Hubert, Jean, Marie; FR
ASHTARI, Nicolas; FR
HELLOT, Jérémy; FR
TECHER, Marc-Emmanuel; FR
Agent:
DESORMIERE, Pierre-Louis; FR
DAVID, Alain; FR
HEALY, Erwan; FR
LAIK, Eric; FR
Priority Data:
165174802.03.2016FR
Title (EN) INSTALLATION AND METHOD FOR FORMING AN AXISYMMETRIC FIBROUS PREFORM EXHIBITING, IN RADIAL SECTION, A PROFILE THAT EVOLVES
(FR) INSTALLATION ET PROCEDE POUR LA FORMATION D'UNE PREFORME FIBREUSE DE REVOLUTION PRESENTANT EN SECTION RADIALE UN PROFIL EVOLUTIF
Abstract:
(EN) An installation for shaping an axisymmetric fibrous preform that, in radial section, exhibits a profile that evolves comprises a storage mandrel (300) intended to store a fibrous texture (210) in the form of a wound strip, follower rollers (400, 500) and an axisymmetric mould (600) on which the fibrous texture (210) is intended to be shaped by winding, the follower roller or rollers being placed between the storage mandrel (300) and the axisymmetric mould (600). The storage mandrel (300), each follower roller (400; 500) and the mould (600) have, across their axial width, a radius that varies so as to define an external surface the profile of which is in relief. At least one follower roller comprises a plurality of sectors fixed removably to the external surface of the said follower roller, each sector extending over a fraction of the circumference of the follower roller and over all or part of the axial length of the said follower rolller. Each sector also has at least one thickness determined in such a way as to locally modify the thickness of the relief profile of the external surface of the follower roller.
(FR) Une installation pour la mise en forme d'une préforme fibreuse de révolution présentant en section radiale un profil évolutif comprend un mandrin de stockage (300) destiné à stocker une texture fibreuse (210) en forme de bande enroulée, des rouleaux suiveurs (400, 500) et un moule (600) de révolution sur lequel la texture fibreuse (210) est destinée à être mise en forme par enroulement, le ou les rouleaux suiveurs étant placés entre le mandrin de stockage (300) et le moule (600) de révolution. Le mandrin de stockage (300), chaque rouleau suiveur (400; 500) et le moule (600) présentent sur leur largeur axiale un rayon variable de manière à définir une surface externe ayant un profil en relief. Au moins un rouleau suiveur comprend une pluralité de secteurs fixés de façon amovible sur la surface externe dudit rouleau suiveur, chaque secteur s'étendant sur une fraction de la circonférence du rouleau suiveur et sur tout ou partie de la largeur axiale dudit rouleau suiveur. Chaque secteur présente en outre au moins une épaisseur déterminée de manière à modifier localement l'épaisseur du profil en relief de la surface externe du rouleau suiveur.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: French (FR)
Filing Language: French (FR)