EP 4232234 A1 20230830 - MANUFACTURE OF AN AIR INLET LIP OR RING SECTOR OF AN AIR INLET LIP INCORPORATING OPENINGS WITH TURNED-IN EDGES
Title (en)
MANUFACTURE OF AN AIR INLET LIP OR RING SECTOR OF AN AIR INLET LIP INCORPORATING OPENINGS WITH TURNED-IN EDGES
Title (de)
HERSTELLUNG EINES LUFTEINLASSLIPPEN- ODER RINGSEKTORS EINER LUFTEINLASSLIPPE MIT ÖFFNUNGEN MIT EINGESCHLAGENEN KANTEN
Title (fr)
FABRICATION D'UNE LEVRE D'ENTREE D'AIR OU D'UN SECTEUR ANNULAIRE DE LEVRE D'ENTREE D'AIR INTEGRANT DES OUVERTURES A BORD RENTRE
Publication
Application
Priority
- FR 2010782 A 20201021
- FR 2021051833 W 20211020
Abstract (en)
[origin: WO2022084629A1] The invention relates to a method for manufacturing an air inlet lip, which comprises: - placing a blank opposite a three-dimensional forming surface of a die of a hydroforming tool, the three-dimensional surface comprising an outer annular portion for forming the outer wall of an air inlet lip, the outer annular portion comprising at least one opening indentation protruding from the three-dimensional surface, - forming an air inlet lip preform (60) by hydroforming the blank on the three-dimensional surface of the die, the air inlet lip preform having a U-shaped cross-section, the outer wall (61) of the air inlet lip comprising at least one recessed cavity (62) with a turned-in edge (620) and a bottom (621), the cavity having a shape matching the shape of said at least one opening indentation, - cutting an opening (622) in each recessed cavity (62) while retaining at least the turned-in edge (620) so as to obtain an air inlet lip comprising at least one opening having an edge formed integrally with the outer wall of said lip.
IPC 8 full level
B23P 15/00 (2006.01); B21D 11/18 (2006.01); B21D 26/021 (2011.01); B21D 26/031 (2011.01); B21D 51/06 (2006.01); B21D 51/08 (2006.01); B21D 51/10 (2006.01); B21D 53/92 (2006.01); B64D 33/02 (2006.01); B64F 5/10 (2017.01); F02C 7/04 (2006.01)
CPC (source: EP US)
B21D 11/18 (2013.01 - EP); B21D 26/021 (2013.01 - EP); B21D 26/031 (2013.01 - EP); B21D 51/06 (2013.01 - EP); B21D 51/08 (2013.01 - EP); B21D 51/10 (2013.01 - EP); B21D 53/92 (2013.01 - EP); B23P 15/00 (2013.01 - EP); B64D 33/02 (2013.01 - EP); B64F 5/10 (2017.01 - EP); F02C 7/04 (2013.01 - EP US); F05D 2230/21 (2013.01 - EP); F05D 2230/25 (2013.01 - US)
Citation (examination)
US 5000399 A 19910319 - READNOUR JACK L [US], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
FR 3115223 A1 20220422; FR 3115223 B1 20230512; CN 116323030 A 20230623; EP 4232234 A1 20230830; US 12129793 B2 20241029; US 2023287835 A1 20230914; WO 2022084629 A1 20220428
DOCDB simple family (application)
FR 2010782 A 20201021; CN 202180071555 A 20211020; EP 21807190 A 20211020; FR 2021051833 W 20211020; US 202118249394 A 20211020