METHOD FOR PRODUCING A HOLLOW FAN BLADE

The invention relates to plastic metal forming, in particular, to methods for producing a hollow fan blade made of a titanium alloy. The method involves machining blanks of shells so that the sections to be jointed to the filler blank are shaped in the form of projections with a flat surface in a cr...

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Bibliographische Detailangaben
Hauptverfasser:	KOKSHAROV, NIKOLAY LEONIDOVICH, MULYUKOV, RADIK RAFIKOVICH, SAIRANOV, AZAT NAILIEVICH, LUTFULLIN, RAMIL YAVATOVICH, KLIMOV, VALERY NIKOLAEVICH, ANDREYCHENKO, IGOR LEONARDOVICH, MUKHAMETRAKHIMOV, MINNAUL KHIDIYATOVICH, SAFIULLIN, RINAT VLADIKOVICH, RUDENKO, OLEG ALEXANDROVICH, MOROZOV, MIKHAIL ALEXANDROVICH, KHARIN, SERGEY ALEXANDROVICH, DONGAUZER, KONSTANTIN ALEXANDROVICH, KRUGLOV, ALEXEY ANATOLIEVICH
Format:	Patent
Sprache:	eng ; fre ; rus
Schlagworte:	BLASTING CLADDING OR PLATING BY SOLDERING OR WELDING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBINED OPERATIONS CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ENGINE PLANTS IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04 LIGHTING MACHINE TOOLS MACHINES OR ENGINES IN GENERAL MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS MECHANICAL ENGINEERING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METAL-WORKING NOT OTHERWISE PROVIDED FOR NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES OTHER WORKING OF METAL PERFORMING OPERATIONS PUNCHING METAL SOLDERING OR UNSOLDERING STEAM ENGINES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING UNIVERSAL MACHINE TOOLS WEAPONS WELDING WORKING BY LASER BEAM WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	The invention relates to plastic metal forming, in particular, to methods for producing a hollow fan blade made of a titanium alloy. The method involves machining blanks of shells so that the sections to be jointed to the filler blank are shaped in the form of projections with a flat surface in a cross-sectional view and machining the sections, which are not to be jointed to the filler blank, in the form of grooves. A joint-preventing coating is applied to the surface of the areas which are not to be jointed. The shell and filler blanks are assembled into a packet and are welded by diffusion to each other. Then, the packet of the blanks is shaped in the form of an aerodynamic profile and stiffener plates are formed by means of superplastic stamping. The invention makes it possible to improve the quality of the diffusion-welded joint of the shell and filler blanks, to simplify the process and to reduce the labour-output ratio thereof. L'invention se rapporte au domaine du traitement des métaux sous pression, et concerne notamment des procédés de préparation de pales de ventilateur creuses en alliage de titane. On effectue un traitement des ébauches des coques de manière à former des sections devant être connectées à l'ébauche de la forme de remplissage sous forme de protubérances ayant une surface plane dans le sens transversal, ainsi que des sections ne devant pas être connectées à l'ébauche de la forme de remplissage sous forme de gorges. On applique ensuite, à la surface des sections des ébauches ne devant pas être connectées un revêtement empêchant la connexion. On procède ensuite à l'assemblage des ébauches de coques et de la forme de remplissage en un ensemble, et on effectue une soudure par diffusion des ébauches des coques et de la forme de remplissage. On confère ensuite à l'ensemble des ébauches un profil aérodynamique et l'on forme des nervures de rigidité par emboutissage superplastique. On améliore ainsi la qualité de connexion de la soudure par diffusion des ébauches de coques et de la forme de remplissage, tout en simplifiant le procédé et en réduisant la quantité de travail.