Method of manufacturing a hollow blade comprising a squealer tip and method of repairing such a blade

The process consists of casting a hollow blade (1) from a nickel alloy with at least one side wall (2, 3) and an open tip, making a plate of a laminated material with at least one layer of the same metal as the blade and a layer of a brazing material, brazing the plate onto the tip of the blade by t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	BOULNOIS, MICHEL, PAGNON, CLAUDE
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COMBINED OPERATIONS ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINE TOOLS MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES OTHER WORKING OF METAL PERFORMING OPERATIONS STEAM ENGINES TRANSPORTING UNIVERSAL MACHINE TOOLS WEAPONS
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Beschreibung
Zusammenfassung:	The process consists of casting a hollow blade (1) from a nickel alloy with at least one side wall (2, 3) and an open tip, making a plate of a laminated material with at least one layer of the same metal as the blade and a layer of a brazing material, brazing the plate onto the tip of the blade by the application of pressure, and machining it e.g. by electro-erosion into a bathtub-shaped recess with a base (8) and rim (9, 10). The laminated plate is preferable cut out by water jet to avoid the creation of uneven zones, and its brazing material layer is made e.g. from nickel, chrome or boron.