[특허]Value stream process for forming vehicle rails from extruded aluminum tubes

Value stream process for forming vehicle rails from extruded aluminum tubes 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C22F-001/04 B21D-026/033 B21D-035/00 C22F-001/05 C22F-001/047 C22F-001/043 C22C-021/02 C22C-021/08 C22C-021/00 C21D-001/42 B21D-007/16 B62D-029/00 B62D-065/00 C22C-021/14 C22C-021/16 C22C-021/18 C22F-001/057 C21D-007/02 C21D-007/12 C21D-001/26
출원번호	US-0428051 (2014-06-16)
등록번호	US-10086422 (2018-10-02)
국제출원번호	PCT/US2014/042449 (2014-06-16)
국제공개번호	WO2015/167588 (2015-11-05)
발명자 / 주소	Luckey, Jr., S. George Hill, David John Friedman, Peter A. May, Christopher John Kernosky, Stephen Ilinich, Andrey M.
출원인 / 주소	Ford Global Technologies, LLC
대리인 / 주소	Rogers, Jason
인용정보	피인용 횟수 : 0 인용 특허 : 34

초록 ▼

A value stream process or method for forming vehicle rails from extruded aluminum tubes includes the steps of extruding an aluminum tube and hydroforming the extruded aluminum tube into a vehicle rail. More specifically, the method includes extruding the aluminum tube, bending the aluminum tube, preforming the aluminum tube, hydroforming the aluminum tube into a vehicle rail, trimming the vehicle rail to length and then artificially aging the rail followed by batch chemical pretreatment. In an alternative embodiment the artificial aging and batch chemical pretreatment processes are performed in reverse order. In either of the embodiments, localized induction annealing to recover formability may be performed between bending and preforming, between preforming and hydroforming or both.

대표청구항 ▼

1. A method of forming a vehicle rail from aluminum, comprising: extruding an aluminum tube;longitudinally bending said aluminum tube to include a bend with an inner radius;preforming said aluminum tube after longitudinally bending;completing induction annealing of said aluminum tube; andhydroforming said aluminum tube into said vehicle rail, wherein the hydroforming includes providing the inner radius of the bend with a cross-sectional length of line reduction that is less than 1%. 2. The method of claim 1, including completing said bending in a rotary draw bending tool and completing said preforming in a forming die. 3. The method of claim 1, including completing said bending in a push-roll bending tool and completing said preforming in a forming die. 4. The method of claim 1, including completing said induction annealing following bending and before preforming. 5. The method of claim 1, including completing said induction annealing following preforming. 6. The method of claim 1, including completing said induction annealing after bending and after preforming. 7. The method of claim 1, including positioning the bent and preformed extruded aluminum tube into a hydroforming die, partially closing said hydro-forming die and subjecting said bent and performed extruded aluminum tube in said hydroforming die to a liquid under a first level of pressure. 8. The method of claim 7, including engaging the inner radius of the bend in said bent and preformed extruded aluminum tube with said hydroforming die before completely closing said hydroforming die thereby reducing the amount of outer fiber strain on said inner radius of said bend. 9. The method of claim 8, including forming a cross-section of non-constant radius including a first transition segment, a second transition segment and an intermediate segment between said first and second transition segments and providing said first and second transition segments with a tighter radius of curvature than said intermediate segment. 10. The method of claim 9, including completely closing said hydroforming die around said extruded aluminum tube and increasing level of liquid pressure to a second level to form and hydro-pierce a part from said bent and preformed extruded aluminum tube. 11. The method of claim 10, including maintaining a gap between said hydroforming die and said first and second transition segments during hydroforming. 12. The method of claim 11, including trimming said part to a desired length. 13. The method of claim 12, including loading a plurality of said parts onto a rack and heat treating a plurality of said parts together to artificially age said parts and provide desired strength characteristics. 14. The method of claim 13, including chemically pretreating a plurality of said parts together on said rack to provide a chemical pretreatment to said parts after heat treating. 15. The method of claim 12, including loading a plurality of said parts onto a rack and chemically pretreating a plurality of said parts together to provide a chemical pretreatment to said parts after trimming. 16. The method of claim 15, including heat treating a plurality of said parts together on said rack to artificially age said parts and provide desired strength characteristics after chemical pretreatment. 17. The method of claim 1, including extruding said aluminum tube into a round cross-section from 6xxx aluminum alloy material.

이 특허에 인용된 특허 (34)

May, Christopher John; Luckey, Jr., S. George; Ilinich, Andrey M.; Kernosky, Stephen; Mallela, Kiran Kumar; Irick, Brett D., Aluminum porthole extruded tubing with locating feature.
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Roper Ralph E. ; Webb Gary Alan ; Tyger Douglas W., Apparatus and method for forming and hydropiercing a tubular frame member.
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Heep, Theo, Axle system for articulated arrangement of vehicle axles in motor vehicles and method for manufacturing same.
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Marks Larry D.,CAX ; Bestard Thomas L.,CAX ; Klages Gerrald A.,CAX, Compressive hydroforming.
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Bussmann Johannes,DEX ; Fritz Andreas,DEX ; Kleinschmidt Jurgen,DEX, Exhaust manifold.
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Gupta Alok Kumar,CAX ; Wheeler Michael J.,CAX ; Bull Michael J. ; Marois Pierre H.,CAX, Heat treatment process for aluminum alloy sheet.
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Ni Chi-Mou (Troy MI) Bruggemann Charles J. (Rochester Hills MI) Hassan Tasnim (Flint MI) Hall Wallace T. (Fenton MI), Hydroformed structural member with varied wall thickness.
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Kaiser Wilhelm (Sundern DEX), Hydrostatically deforming a hollow body.
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Seksaria Dinesh C. ; Cobes John W. ; Michael Richard A., Instrument panel reinforcement structure including a novel driver side cross tube.
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Krumme John F. (Woodside CA), Intravenous tube and controller therefor.
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Seksaria Dinesh C. ; Cobes John W. ; Michael Richard A., Light weight instrument panel reinforcement structure.
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Kojima Masayasu,JPX ; Inoue Saburo,JPX, Method and apparatus for hydroforming metallic tube.
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Horton Frank A., Method and apparatus for wrinkle-free hydroforming of angled tubular parts.
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Hiroshi Sakurai JP; Eizaburou Nakanishi JP; Shinji Ooe JP; Masanobu Hayasaka JP; Junji Katamura JP, Method and device for forming tubular work into shaped hollow product by using tubular hydroforming.
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Peter Gysi CH, Method and device for positioning edges, especially in tube welding.
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Gysi, Peter, Method and device for the formation of pipes.
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Leppin, Christian; Gehrig, Markus, Method for forming an initial profile or a tool of the kind and a profile therefor.
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Mizumura, Masaaki; Sato, Koichi; Kuriyama, Yukihisa, Method for hydroforming and hydroformed product.
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Shah Sanjay M. (Rochester Hills MI) Lovell Michael H. (Leonard MI), Method for pinch free tube forming.
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Barthelemy, Bruno; Koganti, Ramakrishna P.; Queener, Lawrence Anderson, Method of forming a flanged tubular member in hydroforming.
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Boyd David T. (Sterling Heights MI) Cueny Charles J. (Utica MI), Method of forming a tubular member with flange.
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Cudini Ivano G. (Woodstock CAX), Method of forming box-like frame members.
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Kr��pfl,Ingo G��nther, Method of heat treating an aluminium alloy member and apparatus therefor.
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Moses David G., Method of hydroforming a front axle beam.
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Marando Richard A. ; Sanko Thomas R. ; Schrack Eric M., Method of hydroforming a vehicle frame component.
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Bihrer Otto, Method of hydroforming multi-lateral members from round tubes.
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Bignucolo, Roberto; Di Bona, Daniele, Method of producing front axles for industrial vehicles.
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Ni,Chi Mou; Strzelecki,Edward J., Method of progressive hydro-forming of tubular members.
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Luckey, Jr., S. George; Mallela, Kiran Kumar, Pressure sequence process for hydro-forming an extruded structural tube.
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Benedyk Joseph C. (Lake Zurich IL), Process for formation of high strength aluminum ladder structures.
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Miyanaga,Kenji; Maruyama,Manabu; Hori,Izuru; Kanai,Yuji; Mizutani,Kouki, Process for forming tubular member.
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Mishra, Raja K.; Sachdev, Anil K.; Saimoto, Shigeo, Thermomechanical processing of aluminum alloys.
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Maeda, Hirokazu; Matsuo, Yasuhide, Vehicle body framework structure and method of manufacturing the same.
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Lueschen, Gerhard G. G.; Stojkovic, Dragan B.; Dicks, Jr., Ernest; Paul, David Edward; May, Christopher John; Wagner, Darrin Neil, Vehicle front end joint.
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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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Value stream process for forming vehicle rails from extruded aluminum tubes 원문보기

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Value stream process for forming vehicle rails from extruded aluminum tubes 원문보기

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