VERFAHREN ZUR HERSTELLUNG VON GEBLAESESCHEIBEN AUS TITAN UNTER ANWENDUNG EINER DIFFUSIONSBINDUNG

A method of making a titanium fan disc for a gas turbine engine comprises providing a pair of identical forged titanium cylinders each having a central bore and a flat end surface at right angles to its central axis, preparing the flat end surface of each cylinder to a high degree of smoothness, abu...

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Bibliographische Detailangaben
Hauptverfasser:	PRATT, ANTHONY LIONEL, PUCKLECHURCH, BRISTOL, AVON, GB, BOARDMAN, JAMES EDWARD, BARNOLDSWICK, COLNE, LANCASHIRE, GB, BENN, BRYAN LESLIE, THORNBURY, BRISTOL, AVON, GB, PRATT, ARNOLD JAMES STUART, HEAGE LANE, ETWALL, DERBYSHIRE, GB
Format:	Patent
Sprache:	ger
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING 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 TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	A method of making a titanium fan disc for a gas turbine engine comprises providing a pair of identical forged titanium cylinders each having a central bore and a flat end surface at right angles to its central axis, preparing the flat end surface of each cylinder to a high degree of smoothness, abutting the prepared surfaces of the cylinders one against the other in axial alignment, removing air from between said surfaces, and diffusion bonding the cylinders end-to-end by hot isostatic pressing to form the disc. A flange may be provided on each cylinder with a recess to accept a titanium ring 24 which shields the cylinder from an electron beam used to form a weld 28 to seal the joint line for evacuation. The flange is ultimately machined away.