Process for manufacturing a monolithic leading edge

• Main Authors: CALA ROMERO, ANTONIO, JIMENEZ GAHETE, ANTONIO, MARTIN PRIETO, FERNANDO, AMBITE IGLESIAS, JUAN CARLOS
• Format: Patent
• Language: English; French; German
• Published: 21.03.2007
• Subjects: AEROPLANES; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; AIRCRAFT; AVIATION; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COSMONAUTICS; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING ORREPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLYADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFTCOMPONENTS, NOT OTHERWISE PROVIDED FOR; HELICOPTERS; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Process for manufacturing a monolithic leading edge (21) for aircraft aerodynamic surfaces formed by an outer skin (23) and a plurality of inner ribs (25) characterised by comprising the following steps: a) providing a male tool made the assembly of a plurality of blocks (31); b) cutting dry carbon fibers layers for the skin (23) and the ribs (25); c) laminating dry fibers layers on the lateral sides (32) of said blocks (31) forming half ribs (37); d) assembling the male tool (33) with the ribs (25) to be formed with two half ribs (37) laminated on adjacent blocks (31) integrated on it;. e) laminating dry fibers layers (39) for the skin (23) on the male tool (33); f) placing the female tool (35) over the male tool (33) closing a mould for the next step; g) performing a resin injection / curing process under high temperature conditions.