Title:
繊維強化Ａｌ−Ｌｉ圧縮機翼形部及び製造方法
Document Type and Number:
Japanese Patent JP5960988
Kind Code:
B2
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.
Inventors:
Ronald Ralph Cairo
Jiang Chang Chen
Jiang Chang Chen
Application Number:
JP2011288997A
Publication Date:
August 02, 2016
Filing Date:
December 28, 2011
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
C22C49/06; B22C9/22; B22C9/24; B22D17/00; B22D19/00; B22D19/14; B22D23/06; B32B15/14; C22C21/00; C22C47/12; F04D29/02; F04D29/38
Domestic Patent References:
| JP2005113908A | ||||
| JP59066966A | ||||
| JP2012510586A |
Foreign References:
| WO2010061140A1 |
Attorney, Agent or Firm:
Arakawa Satoshi
Hirokazu Ogura
Toshihisa Kurokawa
Hirokazu Ogura
Toshihisa Kurokawa