Faserverstärkte Al-Li-Kompressorschaufel und Herstellungsverfahren
Anmelder: General Electric Company 🇺🇸
Details
- Veröffentlichungs-Nr.
- EP2474638
- Aktenzeichen
- EP11194758
- Anmeldetag
- 21. Dezember 2011
- Veröffentlichung
- 17. Juli 2019
- Erteilung
- 17. Juli 2019
- Rechtsraum
- EP
- IPC
- C22C47/12C22C47/20C22C49/06C22C47/06F04D29/02F04D29/32B22D19/14C22C21/00B22D17/00B22D21/00C22C47/14B22F5/04B22F3/14
Abstract
A metal matrix composite lightweight compressor airfoil. The airfoil comprises a braided fabric embedded in a lightweight aluminum-lithium alloy. The airfoils are fabricated by forming a plurality of fiber tows by twisting filaments or fibers. The tows are then braided into a fabric. The fabric may be impregnated with an optional fugitive polymer that temporarily occupies interstices of the fabric to facilitate handling of the pre-formed braided fabric, but which is subsequently removed. The airfoil may then be formed as a MMC by one of two separate methods. In the first method, aluminum-lithium alloy is pressure augmented casting into a die that includes a preform of fabric impregnated with fugitive polymer. In a second method, a preform is formed using a tool and mandrel by impregnating fabric with aluminum-lithium alloy. Then aluminum-lithium alloy is pressure augmented cast into a die that includes the alloy-impregnated preform.
Anmelder
- Firma
- General Electric Company
- Land
- 🇺🇸 USA
US-amerikanischer Technologiekonzern mit Sitz in Massachusetts. Historisch aktiv in Energieerzeugung, Luftfahrttriebwerken, Medizintechnik und Industrietechnik über verschiedene Geschäftsbereiche.
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