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1. (WO2018007756) METHOD FOR MANUFACTURING A PREFORM FOR COMPOSITE MATERIALS
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.:    WO/2018/007756    International Application No.:    PCT/FR2017/051835
Publication Date: 11.01.2018 International Filing Date: 05.07.2017
IPC:
B29B 11/16 (2006.01), B64C 7/02 (2006.01)
Applicants: SAFRAN NACELLES [FR/FR]; Route du Pont 8 76700 GONFREVILLE L'ORCHER (FR)
Inventors: PROVOST, Benjamin; (FR).
DESJOYEAUX, Bertrand; (FR).
LOUCHARD, Sébastien; (FR).
DEPEUX, Fabien; (FR)
Agent: CABINET GERMAIN & MAUREAU; 31-33 rue de la Baume 75008 PARIS (FR)
Priority Data:
1656501 06.07.2016 FR
Title (EN) METHOD FOR MANUFACTURING A PREFORM FOR COMPOSITE MATERIALS
(FR) PROCÉDÉ DE FABRICATION D'UNE PRÉFORME POUR MATÉRIAUX COMPOSITES
Abstract: front page image
(EN)A method for manufacturing a preform having a non-developable end shape comprising, about a longitudinal axis (A), an end overall radius of curvature (R2), and, in at least a longitudinal section, curved segments (16, 30, 32) forming bending radii linking straight segments (2, 4, 6, 12, 20, 22), said method comprising a step of depositing successive layers giving the preform an initial substantially rotational shape having, about the longitudinal axis (A), an initial overall radius of curvature, then a step of deploying the preform by increasing the initial overall radius of curvature until the end overall radius of curvature is reached (R2), in order to close the bending radii of the curved segments.
(FR)Procédé de fabrication d'une préforme présentant une forme finale non développable comprenant autour d'un axe longitudinal (A) un rayon global de courbure final (R2), et dans au moins une section longitudinale des tronçons courbes (16, 30, 32) formant des rayons de pliage reliant des tronçons rectilignes (2, 4, 6, 12, 20, 22), ce procédé comportant une étape de dépose de couches successives donnant à la préforme une forme initiale sensiblement de révolution présentant autour de l'axe longitudinal (A) un rayon global de courbure initial, puis une étape de déploiement de la préforme en augmentant le rayon global de courbure initial jusqu'au rayon global de courbure final (R2), afin de refermer les rayons de pliage des tronçons courbes.
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, JO, 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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)