[특허]Forming metal parts using superplastic metal alloys and axial compression

Forming metal parts using superplastic metal alloys and axial compression 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B21D-026/02
출원번호	US-0812137 (1991-12-18)
발명자 / 주소	Sanders Daniel G. (Seattle WA) Burg Bruce M. (Louisville CO)
출원인 / 주소	The Boeing Company (Seattle WA 02)
인용정보	피인용 횟수 : 40 인용 특허 : 0

초록 ▼

A method for forming metal parts from superplastic metal alloys uses axial compression of the blank starting material. A blank of the superplastic metal alloy is enclosed within a die press. The blank is generally tubular, although not necessarily circular, and has an aperture at each end. The ends of the blank are enclosed within correspondingly shaped sections of a cavity within the die press, while the center of the blank is disposed within a central cavity defining a desired shape of the metal part to be formed. Each end of the blank is then sealed with a ram or stop member, and the die press and blank are heated to a forming temperature that is within the superplastic temperature range of the metal alloy. Gas is supplied under pressure to the inside of the blank to produce an outward pressure urging the blank to deform outwardly within the central cavity of the die press. The blank is simultaneously compressed axially with one or both of the rams or stops, to cause additional superplastic metal alloy to be supplied to the central cavity as the blank undergoes superplastic flowing, so that thinning of the blank is limited during the formation of the part. The pressures inducing the superplastic flowing and the rate of axial compression can be varied in different combinations to produce parts with a wide range of shapes and thicknesses. These procedures are preferably performed under preprogrammed direction by a computer to attain precise control and repeatability.

대표청구항 ▼

A method for forming metal parts from superplastic metal alloys, the method comprising the steps of: heating to a superplastic temperature a blank of superplastic metal alloy and a die cavity of a die press containing the blank, the die press having first and second die members, the die cavity forming a desired shape of a finished part when the first die member is in a final position; applying an internal superatmospheric pressure and an external superatmospheric pressure to an inside of the blank and an outside of the blank respectively to create a pressure differential wherein the greater pressure is inside of the blank; axially compression the blank by moving the first die member toward the final position; and controlling a rate of applying and a rate of axially compressing to cause the blank to be formed into the desired shape of the finished part against the die cavity by a combination of axial compression and superplastic flowing.

이 특허를 인용한 특허 (40)

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Sanders, Daniel G., Apparatus for superplastic forming of tubing.
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Tauzer Paul J., Bulge forming machine.
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Rust, Charles W., Dual walled titanium tubing and methods of manufacturing the tubing.
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Rust, Charles William, Dual walled titanium tubing and methods of manufacturing the tubing.
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Lovas Kurt,DEX ; Hofmann Eberhard,DEX, Fiber conveying channel for a spinning machine.
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Guza,David E., Hydroforming device and method.
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Horton Frank A., Hydroforming of a tubular blank having an oval cross section.
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Amborn Peter,DEX ; Duff Alexander Mark,GBX, Hydroforming process.
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Gharib, Mohamed T., Hydroforming process and apparatus for the same.
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Sanders, Daniel G.; Hefti, Larry D.; Ramsey, Gregory L., Mark-off suppression in superplastic forming and diffusion bonding.
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Michael Seifert DE; Thomas Werle DE, Method and apparatus for fabricating a hollow body.
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Eilert,Theodore J.; Harkins,Henry D.; Kornfeld,Roger E.; Breer,Marlin D., Method and apparatus for forming complex contour structural assemblies.
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Kojima Masayasu,JPX ; Inoue Saburo,JPX, Method and apparatus for hydroforming metallic tube.
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Gmurowski Romuald, Method and apparatus for sequential axial feed hydroforming.
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Jurgen Kleinschmidt DE; Dieter Topker DE; Elmar Grussmann DE, Method and device for forming a hollow metallic workpiece by inner pressure.
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Klaas Friedrich,DEX ; Bogel Helmut,DEX ; Weber Georg,DEX, Method for internal high-pressure deforming of hollow offset shafts made of cold-deformable metal.
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Chang,Owen, Method for making a bicycle frame part.
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Hu, Hui-Wen, Method for making metal body and metal box by using hydroforming.
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Druesne, Guy; Verboom, Cornelis, Method of shaping container bodies and corresponding apparatus.
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Sanders, Daniel G.; Hefti, Larry D.; Ramsey, Gregory L., Methods of mark-off suppression in superplastic forming and diffusion bonding.
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Adams, John; Gopalaswamy, Rajesh; Shi, Simon; Zeng, Wen, Multiple blow molded metallic container sidewalls.
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Eilert, Theodore J.; Harkins, Henry D.; Kornfeld, Roger E.; Breer, Marlin D., Preform for forming complex contour structural assemblies.
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Wehner Frank,DEX ; Springe Gerd,DEX, Process for manufacturing hollow bodies.
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Harvey David,GB3, Reshaping of containers.
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Sommer, Thomas Edward; Ramsey, Mark Alan; Rishel, David Dwain, Segmented mandrel for high temperature bonding of metallic axisymmetric shells having complex curvatures.
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Sommer, Thomas Edward; Ramsey, Mark Alan; Rishel, David Dwain, Segmented mandrel for high temperature bonding of metallic axisymmetric shells having complex curvatures.
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Zaccone Mark A. (St. Louis County MO) Russom Jeffery D. (St. Louis County MO), Structural panel having a predetermined shape and an associated method for superplastically forming and diffusion bondin.
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Comley, Peter N.; Hefti, Larry D., Superplastic forming and diffusion bonding of fine grain titanium.
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Connelly, Thomas J.; Dunstan, Kent W.; Williams, III, William T.; Comley, Peter N.; Hefti, Larry D., Superplastic forming of titanium assemblies.
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Sjogren,John F.; Eilert,Theodore J.; Harkins,Henry D., System and method for processing a preform vacuum vessel to produce a structural assembly.
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Hartman Mark W. ; Shore Zeev W. ; Tang James J. ; Aschberger Anton A. ; Gogola Michael R. ; Irvine William O. ; Trnka Ralph J. ; Wahler Richard O. ; Winkless Robert A., Systems and methods for making decorative shaped metal cans.
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Hartman Mark W. ; Shore Zeev W. ; Tang James J. ; Aschberger Anton A. ; Gogola Michael R. ; Irvine William O. ; Trnka Ralph J. ; Wahler Richard O. ; Winkless Robert A. ; Golding Richard Mark Orlando , Systems and methods for making decorative shaped metal cans.
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Sommer, Thomas Edward; Ramsey, Mark Alan; Rishel, David Dwain, Tool and method for bonding layers of a metallic axisymmetric structure having complex curvatures.
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Sommer, Thomas Edward; Ramsey, Mark Alan; Rishel, David Dwain, Tool and method for bonding layers of a metallic axisymmetric structure having complex curvatures.
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Sommer, Thomas Edward; Ramsey, Mark Alan; Rishel, David Dwain, Tool and method for bonding layers of a metallic axisymmetric structure having complex curvatures.
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Schulz David W. (Kent WA), Tool for sealing superplastic tube.
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Sanders, Daniel G., Tubular metal part having pullouts.
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Dickson Jerry M. ; Baschnagel William R. ; Bagley Mark C., Ultra precision net forming process employing controlled plastic deformation of metals at elevated temperatures.
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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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Forming metal parts using superplastic metal alloys and axial compression 원문보기

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Forming metal parts using superplastic metal alloys and axial compression 원문보기

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