Joining and a repair method
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0451385
(2008-05-23)
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등록번호 |
US-8821785
(2014-09-02)
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우선권정보 |
GB-0712103.1 (2007-06-22) |
국제출원번호 |
PCT/GB2008/001797
(2008-05-23)
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§371/§102 date |
20091110
(20091110)
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국제공개번호 |
WO2009/001026
(2008-12-31)
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발명자
/ 주소 |
- Voice, Wayne E.
- Jarvis, Thomas P.
- Mei, Junfa
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
5 |
초록
▼
A method of forming a fully consolidated joint between first and second components comprising the steps of forming a slot in the first component; inserting at least part of the second component into the slot; inserting a powder material into the slot; heating the powder material to form a pressure t
A method of forming a fully consolidated joint between first and second components comprising the steps of forming a slot in the first component; inserting at least part of the second component into the slot; inserting a powder material into the slot; heating the powder material to form a pressure tight skin; and applying hot isostatic pressure to the pressure tight skin to form a fully consolidated joint. Also a method of repairing a component.
대표청구항
▼
1. A method of forming a joint between first and second components, the method comprising the steps of: a) forming a slot in the first component, sized to receive at least part of the second component;b) inserting at least part of the second component into the slot in the first component;c) insertin
1. A method of forming a joint between first and second components, the method comprising the steps of: a) forming a slot in the first component, sized to receive at least part of the second component;b) inserting at least part of the second component into the slot in the first component;c) inserting a powder material into the slot in the first component, the powder material comprising a parent material and a braze alloy including a melting point depressant;d) sintering the powder material in a vacuum at a single temperature to form a pressure tight skin, wherein the sintering consists of liquid phase sintering; ande) applying hot isostatic pressure to the pressure tight skin to form a fully consolidated joint,wherein the method of forming the joint includes only one sintering step, that sintering step being step d). 2. The method of claim 1, wherein the steps a) to e) are repeated for additional first and second components to form a further component. 3. The method of claim 2, wherein the further component is an impeller. 4. The method of claim 3, wherein the first component is a hub. 5. The method of claim 3, wherein the second component is a blade. 6. The method of claim 1, wherein each of the first and second components comprises one of the group consisting of titanium, titanium alloy, nickel, and nickel alloy. 7. The method of claim 1, wherein the powder material includes a binder. 8. The method of claim 7, wherein the method further comprises, prior to the sintering step, a step of debinding the powder material to remove the binder. 9. The method of claim 7, wherein the binder comprises one or more of the group comprising a wax and a polymer. 10. The method of claim 1, wherein the slot is radiused. 11. The method of claim 1, wherein the parent material comprises substantially the same material as at least one of the first and second components. 12. The method of claim 1, wherein the parent material of the powder material is inserted into the slot and subsequently the braze alloy including the melting point depressant of the powder material is inserted into the slot on top of the parent material. 13. The method of claim 1, wherein the parent material and braze alloy including the melting point depressant are mixed prior to insertion into the slot. 14. The method of claim 1, wherein the sintering step occurs at a temperature of 0.6 Tm of the parent material. 15. The method of claim 1, wherein the braze alloy including the melting point depressant comprises one of the group consisting of titanium-copper, titanium-nickel, and titanium-copper-nickel. 16. The method of claim 1, wherein the powder material comprises less than 10 wt % braze alloy including the melting point depressant. 17. The method of claim 1, wherein the powder material comprises less than 6.5 wt % braze alloy including the melting point depressant. 18. The method of claim 1, wherein the method further comprises, after the step of applying hot isostatic pressure, a step of machining the pressure tight skin to remove the pressure tight skin. 19. A method of repairing a component, the method comprising the steps of: a) forming a slot in the component covering the area requiring repair;b) inserting a powder material into the slot in the component, the powder material comprising a parent material and a braze alloy including a melting point depressant;c) sintering the powder material in a vacuum at a single temperature to form a pressure tight skin, wherein the sintering consists of liquid phase sintering; andd) applying hot iso static pressure to the pressure tight skin to form a fully consolidated repair,wherein the method of repairing the component includes only one sintering step, that sintering step being step c).
이 특허에 인용된 특허 (5)
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Beltran Adrian M. (Ballston Spa NY) Kreischer Charles H. (Schenectady NY), Advanced high-temperature brazing alloys.
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Dzugan Robert (Cincinnati OH) Ferrigno Stephen J. (Cincinnati OH) Young William R. (Cincinnati OH) Froning Marc J. (Tolland CT), Fabrication of cast articles from high melting temperature superalloy compositions.
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Duvall David S. (Cobalt CT) Owczarski William A. (Cheshire CT) Paulonis Daniel F. (Moodus CT) Schaefer Robert P. (East Hartford CT), Method of repairing surface defects using metallic filler material.
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Liburdi Joseph (Hamilton CAX) Lowden Paul (Cambridge CAX) Ellison Keith (Hamilton CAX), Powder metallurgy repair technique.
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Kelly Thomas J. ; Smashey Russell W. ; Boerger Eric J. ; Sheranko Ronald L., Repair of gamma titanium aluminide articles.
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