EP0726106A1 - Procédé pour transformer un élément en forme de plaque - Google Patents
Procédé pour transformer un élément en forme de plaque Download PDFInfo
- Publication number
- EP0726106A1 EP0726106A1 EP96100262A EP96100262A EP0726106A1 EP 0726106 A1 EP0726106 A1 EP 0726106A1 EP 96100262 A EP96100262 A EP 96100262A EP 96100262 A EP96100262 A EP 96100262A EP 0726106 A1 EP0726106 A1 EP 0726106A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- component
- hot aging
- aging
- hot
- shaped
- 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.)
- Granted
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/10—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for compacting surfaces, e.g. shot-peening
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/057—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with copper as the next major constituent
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/47—Burnishing
- Y10T29/479—Burnishing by shot peening or blasting
Definitions
- the invention relates to a method for forming a plate-shaped component, according to the preamble of patent claim 1.
- Shot-peening is known as an alternative manufacturing method for components of this type, in which a component blank in the hardened state is brought into a spatially curved shape with a relatively low outlay on manufacturing resources, largely with accurate contours, without the manufacturing-related difficulties of age creep forming mentioned.
- the material properties of the finished component in particular the residual elasticity, fall short of the values that can be achieved per se for the selected material.
- the object of the invention is to design the manufacturing process of the type mentioned at the outset in such a way that the mechanical material properties of the formed and hardened component are improved in a manner which is simple to manufacture.
- the hot hardening temperature is kept up to about 12% and the hot hardening time up to about 20% below the values defined for the undeformed material in the hot aging process according to claim 2.
- the impact-molded component according to claim 3 is particularly preferably pressurized during hot aging in a full-surface tool shell with a mold surface corresponding to the final component contour, so that the deformed component during the hardening due to the pressure and temperature generated creep process is kept dimensionally stable and after the impact body reshaping in the component possibly remaining contour inaccuracies and internal stresses leading to springbacks are automatically compensated in a simple manner.
- the molding space of the pressing tool on the component side facing away from the molding surface is expedient by a flexible sealing wall which is pressurized from the outside during the hot aging, the pressurizing and hot aging preferably take place in an autoclave and the mold space between the flexible boundary wall and the molding surface is evacuated in accordance with claim 5 with regard to increased component compression.
- a flat metal plate e.g. made of a weldable aluminum-copper alloy with a 6% copper content
- a circular sector-shaped blank 2 and machined according to the required wall thickness profile of the tank bottom segment, so that step-shaped thickenings 4 of increased wall thickness remain.
- the component blank 2 is cold-formed in the manner described in DE 38 42 064 C2, to which reference is hereby made in full, by means of shot-peening in such a way that it corresponds at least approximately to the spherically curved end contour of the tank bottom segment 6 to be produced (FIG. 2 ).
- the component 6 thus formed is then inserted into a pressing tool 8 (FIG. 3) which contains a rigid molded shell 10, for example made of carbon fiber composite material, with a molded surface 12 which is spherically curved in accordance with the component end contour.
- a pressing tool 8 (FIG. 3) which contains a rigid molded shell 10, for example made of carbon fiber composite material, with a molded surface 12 which is spherically curved in accordance with the component end contour.
- the component 6 On the inside provided with the thickenings 4, the component 6 is covered with an air-permeable absorbent fabric 14 with a flexible vacuum film 16 which is connected at the edge to the mold shell 10 in a pressure-tight manner by means of a sealing compound 18, whereupon the pressing tool 8 with that in the mold space component 4 enclosed between the molding surface 12 and the vacuum film 16 is introduced into an autoclave (not shown) and aged there, the hot-curing temperature being kept about 12% and the hot-curing time about 20% below the values applicable to the undeformed material. Simultaneously with the heat curing, the molding space is evacuated and the autoclave pressure is kept at such a high level that the component material is caused to creep.
- component 6 After the end of the heat-hardening cycle, component 6 is finished and can be welded together with other components manufactured in the same way to form a hemispherical tank bottom of a fuel tank for a spacecraft.
- a circular sector-shaped, flat component blank 2 was produced from the material mentioned above with a radial length of 2500 mm and a width of 2100 mm and was machined to a wall thickness of 1.3 mm with local thickenings up to 4.5 mm brought.
- the component was brought into a biaxially curved shape (radius of curvature R 1 about 3000 mm and radius of curvature R 2 about 2700 mm) by the shot peening.
- the hot aging in the press tool 8 was carried out at an autoclave pressure of 5 bar with a heating rate of 30 ° C./h and a holding time of 14 hours at 160 ° C. All the contour inaccuracies still present were eliminated.
Landscapes
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Physics & Mathematics (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Golf Clubs (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Laminated Bodies (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19503620A DE19503620C2 (de) | 1995-02-03 | 1995-02-03 | Verfahren zum Umformen eines plattenförmigen Bauteils |
DE19503620 | 1995-02-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0726106A1 true EP0726106A1 (fr) | 1996-08-14 |
EP0726106B1 EP0726106B1 (fr) | 1999-06-02 |
Family
ID=7753152
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96100262A Expired - Lifetime EP0726106B1 (fr) | 1995-02-03 | 1996-01-10 | Procédé pour transformer un élément en forme de plaque |
Country Status (8)
Country | Link |
---|---|
US (1) | US6264771B1 (fr) |
EP (1) | EP0726106B1 (fr) |
AT (1) | ATE180699T1 (fr) |
CA (1) | CA2168592A1 (fr) |
DE (2) | DE19503620C2 (fr) |
DK (1) | DK0726106T3 (fr) |
ES (1) | ES2135117T3 (fr) |
GR (1) | GR3031046T3 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010118454A1 (fr) | 2009-04-17 | 2010-10-21 | Voestalpine Automotive Gmbh | Procédé de fabrication d'une pièce moulée |
DE102008003882B4 (de) * | 2008-01-10 | 2011-12-15 | Otto Fuchs Kg | Verfahren zum Herstellen eines Gegenstandes aus Metall, insbesondere aus einer hochfesten Aluminiumlegierung sowie Verfahren zum Richten eines solchen Gegenstandes |
CN111195678A (zh) * | 2020-01-11 | 2020-05-26 | 中南大学 | 一种大型薄壁构件节约型蠕变时效成形方法 |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0117066D0 (en) * | 2001-07-12 | 2001-09-05 | Bae Systems Plc | Creep forming a metallic compound |
GB2381764A (en) * | 2001-11-08 | 2003-05-14 | Farleydene Ltd | Autoclave suitable for heat treating parts |
GB0229434D0 (en) * | 2002-12-18 | 2003-01-22 | Bae Systems Plc | Aircraft component manufacturing tool and method |
GB0229435D0 (en) * | 2002-12-18 | 2003-01-22 | Bae Systems Plc | Aircraft component manufacturing tool and method |
GB0719873D0 (en) * | 2007-10-12 | 2007-11-21 | Rolls Royce Plc | Shape correcting components |
JP6115554B2 (ja) * | 2014-12-08 | 2017-04-19 | トヨタ自動車株式会社 | ショットピーニング方法 |
GB2535497B (en) | 2015-02-18 | 2021-05-05 | Avic Beijing Aeronautical Mfg | A die mechanism, an apparatus, and a method for shaping a component for creep-age forming |
US10391536B1 (en) * | 2016-03-31 | 2019-08-27 | Shawn Hubbard | Tool kit for bending a metal tray |
US20200222967A1 (en) * | 2019-01-11 | 2020-07-16 | Embraer S.A. | Methods for producing creep age formed aircraft components |
CN110252881B (zh) * | 2019-06-28 | 2020-09-01 | 中南大学 | 一种蠕变时效成形调控方法 |
CN110802220B (zh) * | 2019-11-17 | 2023-04-07 | 苏州科技大学 | 一种大曲率壁板的蠕变时效成形方法 |
CN112536358B (zh) * | 2020-11-13 | 2022-11-25 | 西安航空职业技术学院 | 一种蠕变时效成形复杂变曲率构件的工艺及模具装置 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3705511A (en) * | 1969-10-17 | 1972-12-12 | Avco Corp | Low penetration ball forming process |
EP0015470A1 (fr) * | 1979-02-26 | 1980-09-17 | Helmut Mischler | Procédé et dispositif de fabrication de plaques en relief |
EP0032780A1 (fr) * | 1980-01-21 | 1981-07-29 | The Boeing Company | Grenaillage de précontrainte de contours complexes |
DE3842064A1 (de) * | 1988-12-14 | 1990-06-21 | Dornier Gmbh | Verfahren zum umformen von ebenen, plattenfoermigen bauteilen in eine zweiachsig gekruemmte form |
US5144825A (en) * | 1990-09-27 | 1992-09-08 | The Boeing Company | Elevated temperature envelope forming |
EP0517982A1 (fr) * | 1991-06-10 | 1992-12-16 | Avco Corporation | Procédé de développement d'un outil |
EP0527570A1 (fr) * | 1991-08-12 | 1993-02-17 | Avco Corporation | Procédé pour le développement d'outils à formes complexes |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU513091A1 (ru) * | 1974-12-20 | 1976-05-05 | Физико-Механический Институт Ан Усср | Способ упрочнени изделий |
DE4305091C1 (de) * | 1993-02-19 | 1994-03-10 | Fuchs Otto Fa | Verfahren zur Herstellung eines einteiligen Leichtmetallrades aus einem Aluminium-Knetwerkstoff |
-
1995
- 1995-02-03 DE DE19503620A patent/DE19503620C2/de not_active Expired - Lifetime
-
1996
- 1996-01-10 ES ES96100262T patent/ES2135117T3/es not_active Expired - Lifetime
- 1996-01-10 EP EP96100262A patent/EP0726106B1/fr not_active Expired - Lifetime
- 1996-01-10 DK DK96100262T patent/DK0726106T3/da active
- 1996-01-10 DE DE59602038T patent/DE59602038D1/de not_active Expired - Lifetime
- 1996-01-10 AT AT96100262T patent/ATE180699T1/de not_active IP Right Cessation
- 1996-01-31 US US08/594,709 patent/US6264771B1/en not_active Expired - Lifetime
- 1996-02-01 CA CA002168592A patent/CA2168592A1/fr not_active Abandoned
-
1999
- 1999-08-19 GR GR990402124T patent/GR3031046T3/el unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3705511A (en) * | 1969-10-17 | 1972-12-12 | Avco Corp | Low penetration ball forming process |
EP0015470A1 (fr) * | 1979-02-26 | 1980-09-17 | Helmut Mischler | Procédé et dispositif de fabrication de plaques en relief |
EP0032780A1 (fr) * | 1980-01-21 | 1981-07-29 | The Boeing Company | Grenaillage de précontrainte de contours complexes |
DE3842064A1 (de) * | 1988-12-14 | 1990-06-21 | Dornier Gmbh | Verfahren zum umformen von ebenen, plattenfoermigen bauteilen in eine zweiachsig gekruemmte form |
DE3842064C2 (fr) | 1988-12-14 | 1990-11-08 | Dornier Gmbh, 7990 Friedrichshafen, De | |
US5144825A (en) * | 1990-09-27 | 1992-09-08 | The Boeing Company | Elevated temperature envelope forming |
EP0517982A1 (fr) * | 1991-06-10 | 1992-12-16 | Avco Corporation | Procédé de développement d'un outil |
EP0527570A1 (fr) * | 1991-08-12 | 1993-02-17 | Avco Corporation | Procédé pour le développement d'outils à formes complexes |
Non-Patent Citations (1)
Title |
---|
MACHINERY AND PRODUCTION ENGINEERING, vol. 140, no. 3609, pages 20 - 21, XP002001441 * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008003882B4 (de) * | 2008-01-10 | 2011-12-15 | Otto Fuchs Kg | Verfahren zum Herstellen eines Gegenstandes aus Metall, insbesondere aus einer hochfesten Aluminiumlegierung sowie Verfahren zum Richten eines solchen Gegenstandes |
WO2010118454A1 (fr) | 2009-04-17 | 2010-10-21 | Voestalpine Automotive Gmbh | Procédé de fabrication d'une pièce moulée |
EP2248926A1 (fr) * | 2009-04-17 | 2010-11-10 | voestalpine Automotive GmbH | Procédé de fabrication d'une pièce emboutie |
CN102395699A (zh) * | 2009-04-17 | 2012-03-28 | 奥地利钢铁联合汽车有限公司 | 用于制造成形件的方法 |
CN102395699B (zh) * | 2009-04-17 | 2017-12-12 | 奥地利钢铁联合金属成形有限公司 | 用于制造成形件的方法 |
US10022769B2 (en) | 2009-04-17 | 2018-07-17 | Voestalpine Metal Forming Gmbh | Method for producing a shaped part from an aluminum alloy sheet |
CN111195678A (zh) * | 2020-01-11 | 2020-05-26 | 中南大学 | 一种大型薄壁构件节约型蠕变时效成形方法 |
Also Published As
Publication number | Publication date |
---|---|
DE59602038D1 (de) | 1999-07-08 |
US6264771B1 (en) | 2001-07-24 |
ES2135117T3 (es) | 1999-10-16 |
EP0726106B1 (fr) | 1999-06-02 |
DE19503620C2 (de) | 1998-07-16 |
DK0726106T3 (da) | 1999-12-13 |
GR3031046T3 (en) | 1999-12-31 |
ATE180699T1 (de) | 1999-06-15 |
CA2168592A1 (fr) | 1996-08-04 |
DE19503620A1 (de) | 1996-08-08 |
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