[특허]Method of making replacement airfoil components

Method of making replacement airfoil components 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B23P-015/00
출원번호	US-0814723 (1991-12-24)
발명자 / 주소	Mendham Alvin L. (Holton MI)
출원인 / 주소	Freedom Forge Corporation (Burnham PA 02)
인용정보	피인용 횟수 : 76 인용 특허 : 0

초록 ▼

A method for replacing airfoil components includes the steps of identifying a portion of the airfoil to be replaced, removing the portion by a nonconventional machining process, such as continuous wire electrical discharge machining, and forming a replacement member utilizing a similar cutting process. A cutting path utilized to remove the portion to be replaced and to form the replacement member includes interlocking projections and sockets and may include one or more tapers along the cutting path so that the portion may be removed only by lifting in one direction. In cases where an entire airfoil is replaced, a first projection may be tapered in one direction while a second projection is tapered in an opposite direction so that the airfoil may not be removed as long as its adjacent flowpath walls are fixed relative to one another. Gas bending load dampers and zero gap standoffs may also be included for precision alignment of the replacement member and further securement of the replacement member in the airfoil.

대표청구항 ▼

A method of repairing one or more turbine components having a first surface and a second surface which are spaced apart along a longitudinal axis, comprising the steps of: a) identifying a portion of the component to be repaired; b) defining a cutting path on the component around said portion, said cutting path including a plurality of projections and corresponding sockets; c) excising said portion from the component along said cutting path using a non-conventional machining process to leave a first tapered bonding surface positioned between the first surface and the second surface on said component corresponding to at least a portion of said cutting path wherein said tapered bonding surface tapers along the longitudinal axis, said machining process conducted so that a cutting kerf is taken from the excised portion; d) forming a replacement member having outer dimensions corresponding to said cutting path and having at least one projection or socket, said replacement member having a second tapered bonding surface for mating with the first tapered bonding surface on the component, said replacement member further having outer dimensions which compensate for the now removed cutting kerf; e) inserting said replacement member into the component to align said first and second tapered bonding surfaces and mechanically interlock said projections and corresponding sockets, with the outer dimensions of said replacement member enabling a close fit and predictable joint control between the replacement member and said component; and f) securing said replacement member in the component by a metallurgical joining process.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

Method of making replacement airfoil components 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (76)

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연합인증

Method of making replacement airfoil components 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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이 특허를 인용한 특허 (76)

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