公开(公告)号：US20230302520A1

公开(公告)日：2023-09-28

申请号：US18248814

申请日：2021-10-20

Applicant: SAFRAN NACELLES

Inventor： Fabienne QUENU ,  Vincent DUTOT ,  Bertrand Pierre Martin LEROYER ,  François TAILLARD

IPC: B21D26/033 ,  F02C7/04 ,  B21D51/10

CPC classification number: B21D26/033 ,  B21D51/10 ,  F02C7/04 ,  F05D2230/60

Abstract: A method for manufacturing annular sectors of an air intake lip includes arranging a revolution-shaped blank facing a three-dimensional forming surface of a die of a hydroforming tool, the three-dimensional surface including at least two plunging cavities spaced from each other along a circumferential direction, forming an air intake lip preform in one piece by hydroforming the revolution-shaped blank on the three-dimensional surface of the die, the air intake lip preform having in section a U-shape and including a plurality of crenellated portions each delimited by a plunging cavity, the production of a plurality of cutouts in the air intake lip preform so as to divide the preform into a plurality of annular sectors, each cutout including the removal of a sacrificial portion at the level of a crenellated portion so as to form two adjacent assembly edges with one of the two adjacent assembly edges including a plunging.

公开(公告)号：US20230287835A1

公开(公告)日：2023-09-14

申请号：US18249394

申请日：2021-10-20

Applicant: SAFRAN NACELLES

Inventor： Fabienne QUENU ,  Vincent DUTOT ,  Bertrand Pierre Martin LEROYER ,  François TAILLARD

IPC: F02C7/04

CPC classification number: F02C7/04 ,  F05D2230/25

Abstract: The disclosure relates to a method for manufacturing an air intake lip comprising: the arrangement of a blank facing a three-dimensional forming surface of a die of a hydroforming tool, the forming of an air intake lip preform by hydroforming the blank on the three-dimensional surface of the die, the air intake lip preform having in section a U-shape, the outer wall of the air intake lip comprising at least one hollow housing with an inturned edge and a bottom, the housing having a shape corresponding to the shape of the at least one opening cavity, the cutting of an opening in each hollow housing keeping at least the inturned edge so as to obtain an air intake lip comprising at least one opening having an edge integrally formed with the outer wall of the lip.