RECONDITIONING OF COMPRESSOR BLADES BY COLD FORMING

FIELD: process engineering.SUBSTANCE: invention relates to metal forming, particularly, to reconditioning of turbomachine compressor blades. Blade radial end has cat's tongue, its radial divergence is smaller than preset nominal radial divergence. Blade edge is displaced between two rollers wit...

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Bibliographische Detailangaben
Hauptverfasser:	BERTOLI,VINCHENTSO, MON,KLOD,MARSEL, DE SANKTIS,SERZH, ZHIJUSTI,STEFAN,RENE,ZHJUL'EN
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBINED OPERATIONS 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 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 STEAM ENGINES TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC 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 WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	FIELD: process engineering.SUBSTANCE: invention relates to metal forming, particularly, to reconditioning of turbomachine compressor blades. Blade radial end has cat's tongue, its radial divergence is smaller than preset nominal radial divergence. Blade edge is displaced between two rollers with rectilinear generating lines spaced apart through distance smaller than depth of said cat's tongue along the chord connecting its rib of attack with trailing edge. Note here that said cat's tongue is elongated so that its radial elongation exceeds said initial nominal divergence.EFFECT: enhanced performances.9 cl, 3 dwg Изобретение относится к области обработки металлов давлением, в частности к восстановлению лопатки компрессора турбомашины. Лопатка содержит на своем радиальном крае кошачий язычок, радиальное расширение которого меньше заданного номинального радиального расширения. Осуществляют перемещение края лопатки между двумя роликами с прямолинейными образующими, разнесенными на расстояние, меньшее толщины упомянутого кошачьего язычка, вдоль хорды, связывающей ее ребро атаки с ее задней кромкой. При этом осуществляют удлинение упомянутого кошачьего язычка так, что его радиальное удлинение становится больше упомянутого номинального расширения. Расширяются технологические возможности. 8 з.п. ф-лы, 3 ил.