WO2007145737A3 - Procédé et appareil destinés à effectuer un fluage et/ou une relaxation des contraintes dans une barre métallique étirée - Google Patents

Procédé et appareil destinés à effectuer un fluage et/ou une relaxation des contraintes dans une barre métallique étirée Download PDF

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Publication number
WO2007145737A3
WO2007145737A3 PCT/US2007/011037 US2007011037W WO2007145737A3 WO 2007145737 A3 WO2007145737 A3 WO 2007145737A3 US 2007011037 W US2007011037 W US 2007011037W WO 2007145737 A3 WO2007145737 A3 WO 2007145737A3
Authority
WO
WIPO (PCT)
Prior art keywords
metal bar
temperature
forming
inch
die
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2007/011037
Other languages
English (en)
Other versions
WO2007145737A2 (fr
Inventor
Kuninori Minakawa
Arvind R Keskar
Adrian Barb
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RTI International Metals Inc
Original Assignee
RTI International Metals Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RTI International Metals Inc filed Critical RTI International Metals Inc
Priority to JP2009515392A priority Critical patent/JP2009539620A/ja
Priority to EP07756226A priority patent/EP2049279A2/fr
Publication of WO2007145737A2 publication Critical patent/WO2007145737A2/fr
Publication of WO2007145737A3 publication Critical patent/WO2007145737A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/02—Bending by stretching or pulling over a die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D25/00—Working sheet metal of limited length by stretching, e.g. for straightening
    • B21D25/02—Working sheet metal of limited length by stretching, e.g. for straightening by pulling over a die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
    • B21J1/06—Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/08—Accessories for handling work or tools

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

L'invention concerne un procédé de formage par enroulage-étirage avec fluage à chaud comprenant les étapes consistant à : chauffer une barre métallique jusqu'à une température de formage comprise dans une plage de températures permettant de déformer ladite barre par fluage; appliquer une force d'étirage à la barre métallique à une vitesse de contrainte ne dépassant pas 0,05 pouce/pouce/seconde; et enrouler ladite barre autour d'une matrice, de préférence ayant une surface de travail à isolation thermique et/ou électrique. La force d'étirage est généralement appliquée à un taux de contrainte allant de 0,5 % à 15,0 %. La barre métallique est idéalement en alliage de titane et sa température de formage est comprise entre 0,45 et 0,60 par rapport à sa température de fusion. La barre métallique enroulée est maintenue en position et sa température est maintenue dans la plage de températures pendant 5 à 120 minutes (généralement) afin de parvenir à une relaxation des contraintes. Ladite barre est de préférence sensiblement maintenue à la température de formage pendant l'intégralité du procédé. Une isolation thermique placée autour de la matrice et de la barre métallique permet de réduire les pertes thermiques subies par la barre.
PCT/US2007/011037 2006-06-15 2007-05-08 Procédé et appareil destinés à effectuer un fluage et/ou une relaxation des contraintes dans une barre métallique étirée Ceased WO2007145737A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009515392A JP2009539620A (ja) 2006-06-15 2007-05-08 金属棒のクリープ成形および応力緩和
EP07756226A EP2049279A2 (fr) 2006-06-15 2007-05-08 Procédé et appareil destinés à effectuer un fluage et/ou une relaxation des contraintes dans une barre métallique étirée

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/455,052 2006-06-15
US11/455,052 US20070261463A1 (en) 2006-05-11 2006-06-15 Method and apparatus for creep forming of and relieving stress in an elongated metal bar

Publications (2)

Publication Number Publication Date
WO2007145737A2 WO2007145737A2 (fr) 2007-12-21
WO2007145737A3 true WO2007145737A3 (fr) 2008-08-07

Family

ID=38832259

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/011037 Ceased WO2007145737A2 (fr) 2006-06-15 2007-05-08 Procédé et appareil destinés à effectuer un fluage et/ou une relaxation des contraintes dans une barre métallique étirée

Country Status (6)

Country Link
US (1) US20070261463A1 (fr)
EP (1) EP2049279A2 (fr)
JP (1) JP2009539620A (fr)
KR (1) KR20090018791A (fr)
CN (1) CN101466485A (fr)
WO (1) WO2007145737A2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8210020B2 (en) * 2009-02-25 2012-07-03 Rti International Metals, Inc. Hot stretch forming die having distortion-minimizing characteristics
US20130094919A1 (en) * 2011-10-14 2013-04-18 Bell Helicopter Textron Inc. System and method of manufacturing a structure with a high performance metal alloy
US10149362B2 (en) 2013-08-01 2018-12-04 Power Integrations, Inc. Solid state lighting control with dimmer interface to control brightness
CN104438496B (zh) * 2014-10-10 2016-09-14 北京航空航天大学 一种型材热拉弯保温箱及其温度控制系统
CN110976581B (zh) * 2019-11-13 2021-02-05 北京航空航天大学 一种用于型材热拉弯的保温工装
CN113070406B (zh) * 2021-05-14 2022-04-29 中南大学 一种应用于蠕变时效成形的柔性模具及蠕变时效成形方法
CN117020085B (zh) * 2023-05-22 2024-04-02 振宏重工(江苏)股份有限公司 一种大型风电主轴锻件的热锻成型及调质热处理工艺

Citations (7)

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Publication number Priority date Publication date Assignee Title
US3722068A (en) * 1971-02-22 1973-03-27 Northrop Corp Method for forming titanium sheets
US3920175A (en) * 1974-10-03 1975-11-18 Rockwell International Corp Method for superplastic forming of metals with concurrent diffusion bonding
US3927817A (en) * 1974-10-03 1975-12-23 Rockwell International Corp Method for making metallic sandwich structures
US4030172A (en) * 1976-07-08 1977-06-21 Gentry Elvin O Crankshaft-forming apparatus and method
US4117970A (en) * 1976-11-16 1978-10-03 Rockwell International Corporation Method for fabrication of honeycomb structures
US4354369A (en) * 1980-05-16 1982-10-19 Rockwell International Corporation Method for superplastic forming
US5819572A (en) * 1997-07-22 1998-10-13 General Motors Corporation Lubrication system for hot forming

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US2952767A (en) * 1960-09-13 Thermo stretch forming of metal
US2486817A (en) * 1948-11-24 1949-11-01 Glenn L Martin Co Apparatus for stretch forming hard metal alloys
US3021887A (en) * 1956-07-19 1962-02-20 Rohr Aircraft Corp Titanium stretch forming
US2905225A (en) * 1956-09-13 1959-09-22 Romeo A Lalli Stretch former with replaceable heated die and pivotally mounted draw bar
US3426569A (en) * 1967-01-31 1969-02-11 Cyril Bath Co Stretch forming machine and segmental adjustable die combination
US3452573A (en) * 1967-06-14 1969-07-01 Cyril Bath Co Stretch wrapping fixture and combination thereof with drawing dies and press
US3568490A (en) * 1968-09-27 1971-03-09 Fairchild Hiller Corp Method and apparatus for heat forming elongated metal panels
US3584487A (en) * 1969-01-16 1971-06-15 Arne H Carlson Precision forming of titanium alloys and the like by use of induction heating
US3934441A (en) * 1974-07-08 1976-01-27 Rockwell International Corporation Controlled environment superplastic forming of metals
US3933020A (en) * 1974-07-18 1976-01-20 Tre Corporation Method for stretch wrapping of panels
US3974673A (en) * 1975-04-07 1976-08-17 Rockwell International Corporation Titanium parts manufacturing
US4011429A (en) * 1975-10-20 1977-03-08 Northrop Corporation Hot stretch-wrap forming with resistance heating
US4188811A (en) * 1978-07-26 1980-02-19 Chem-Tronics, Inc. Metal forming methods
US4242899A (en) * 1979-03-05 1981-01-06 The United States Of America As Represented By The Secretary Of The Air Force Thermoclamps
US4268246A (en) * 1979-09-21 1981-05-19 Chicago Bridge & Iron Company Method and apparatus for metal object heat treatment
US4406393A (en) * 1981-03-23 1983-09-27 Rockwell International Corporation Method of making filamentary reinforced metallic structures
FR2620956A1 (fr) * 1987-09-29 1989-03-31 Inst Francais Du Petrole Procede de formage d'un element de tole de surface reglee en titane ou alliage de titane
US4984348A (en) * 1989-01-17 1991-01-15 Rohr Industries, Inc. Superplastic drape forming
US5119535A (en) * 1989-09-18 1992-06-09 The Boeing Company Method of reconfiguring rigid and semirigid structures
US5687900A (en) * 1995-03-28 1997-11-18 Mcdonnell Douglas Corporation Structural panel having a predetermined shape and an associated method for superplastically forming and diffusion bonding the structural panel
US5823034A (en) * 1997-10-10 1998-10-20 Hyperform Technologies, Inc. Superplastic metalforming with self-contained die
US6047583A (en) * 1999-05-10 2000-04-11 General Motors Corporation Seal bead for superplastic forming of aluminum sheet
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EP1166912B1 (fr) * 2000-06-16 2004-11-03 Nhk Spring Co., Ltd. Méthode de fabrication de soufflets métalliques
DE10063287B4 (de) * 2000-12-19 2007-05-03 Airbus Deutschland Gmbh Verfahren zum Umformen eines Metallbleches
US6776020B2 (en) * 2002-10-11 2004-08-17 General Motors Corporation Method for stretching forming and transporting and aluminum metal sheet
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US7533794B2 (en) * 2004-03-31 2009-05-19 The Boring Company Superplastic forming and diffusion bonding of fine grain titanium
US20060230807A1 (en) * 2005-04-14 2006-10-19 Shultz Stephen W Creep forming a work piece
US7669452B2 (en) * 2005-11-04 2010-03-02 Cyril Bath Company Titanium stretch forming apparatus and method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3722068A (en) * 1971-02-22 1973-03-27 Northrop Corp Method for forming titanium sheets
US3920175A (en) * 1974-10-03 1975-11-18 Rockwell International Corp Method for superplastic forming of metals with concurrent diffusion bonding
US3927817A (en) * 1974-10-03 1975-12-23 Rockwell International Corp Method for making metallic sandwich structures
US4030172A (en) * 1976-07-08 1977-06-21 Gentry Elvin O Crankshaft-forming apparatus and method
US4117970A (en) * 1976-11-16 1978-10-03 Rockwell International Corporation Method for fabrication of honeycomb structures
US4354369A (en) * 1980-05-16 1982-10-19 Rockwell International Corporation Method for superplastic forming
US5819572A (en) * 1997-07-22 1998-10-13 General Motors Corporation Lubrication system for hot forming

Also Published As

Publication number Publication date
EP2049279A2 (fr) 2009-04-22
CN101466485A (zh) 2009-06-24
WO2007145737A2 (fr) 2007-12-21
US20070261463A1 (en) 2007-11-15
KR20090018791A (ko) 2009-02-23
JP2009539620A (ja) 2009-11-19

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