EP1409167B1 - Verfahren und vorrichtung zum umformen von struktubauteilen - Google Patents

Verfahren und vorrichtung zum umformen von struktubauteilen Download PDF

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Publication number
EP1409167B1
EP1409167B1 EP01962548A EP01962548A EP1409167B1 EP 1409167 B1 EP1409167 B1 EP 1409167B1 EP 01962548 A EP01962548 A EP 01962548A EP 01962548 A EP01962548 A EP 01962548A EP 1409167 B1 EP1409167 B1 EP 1409167B1
Authority
EP
European Patent Office
Prior art keywords
rib
ribs
particles
nozzles
blasting
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.)
Expired - Lifetime
Application number
EP01962548A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1409167A1 (de
Inventor
Frank WÜSTEFELD
Wolfgang Linnemann
Stefan Kittel
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.)
Kugelstrahlzentrum Aachen GmbH
Original Assignee
Kugelstrahlzentrum Aachen GmbH
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 Kugelstrahlzentrum Aachen GmbH filed Critical Kugelstrahlzentrum Aachen GmbH
Publication of EP1409167A1 publication Critical patent/EP1409167A1/de
Application granted granted Critical
Publication of EP1409167B1 publication Critical patent/EP1409167B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • B24C1/04—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
    • 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
    • B21D11/08—Bending by altering the thickness of part of the cross-section of the work
    • B21D11/085—Bending by altering the thickness of part of the cross-section of the work by locally stretching or upsetting
    • 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
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
    • C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
    • 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 structural components, in particular those for use in aerospace, wherein the structural components a plate-shaped body and approximately at right angles outgoing, integral with the body connected, elongated and approximately parallel to each other Have ribs, wherein the deformation is carried out by particles of a blasting agent with high speed impact surface areas of the structural component and a cause plastic material deformation.
  • Integral components used which - usually one-sided, but possibly also both sides - have parallel ribs, while possibly not with ribs provided side is even. If both longitudinally and transversely of the component Ribs are present, which are approximately perpendicular to each other, the component receives a Cassette structure. To bend such components, complex procedures must be applied because the ribs - especially if they are parallel to the direction of curvature run - represent a significant deformation resistance.
  • Forming of the type described above are used in aerospace engineering for a long time to the curvature of large-scale components, such as wings or hull shells, applied.
  • large-scale components such as wings or hull shells
  • When forming structural components come mainly abrasive with a particle diameter of up to 2 - 4 mm used. While the abrasive for large-scale machining of the components using Spinning wheels is applied, become a localized deformation Hand jet systems used. These hand blasting machines are also used to bend Used ribs. Due to the beam geometry and the beam diameter the To be able to deform usually flat ribs purposefully, are to be processed Ribs partially covered with a mask, so that in the rib areas to be reshaped the desired strain gradient is achieved. To cover the not to impinging surface sections of the ribs will be rubber or a different shock absorbing material used. The cover of the ribs requires a lot great effort, especially when multiple masks must be made.
  • creep forming processes for structural components.
  • the component is in this case by cutting, in particular by Milling first made in a flat shape. Then the component becomes placed in a mold having the outer contours of the finished component. Under influence of pressure and temperature, the component is adapted to the shape. This Forming process usually takes several hours.
  • Another disadvantage is that special shapes have to be made for each geometry. Besides, it is required to separately determine the parameters, temperature, pressure and time for each component.
  • the use of the creep forming process for materials used for the heat treatment performed are not suitable. Another difficulty is to overstretch the component in the mold to a certain extent to the To compensate for springback after removal of the component from the mold, so that the exact desired component geometry is present.
  • the prior art also includes the known from US 4,329,862 method for Shot blasting of plate-shaped components, in particular of Hydrofoil structures. However, it is not intended that the blasting with acting wing components are reinforced by ribs.
  • the aforementioned US patent rather teaches the component in a first step by a two-sided Strain to apply and then by a only one-sided Blasting abrasive agent in another direction.
  • the invention is based on the object, a method for forming To propose structural components, with which in a reliable and cost-effective manner Different geometries can be realized on the finished components.
  • this task solved in that on opposite longitudinal sides in each case one Rib arranged, opposite surface areas of the ribs from opposite sides simultaneously with Particles of the abrasive are applied.
  • the strength of the radius of curvature is determined by the size and speed of the particles of the blasting medium and the Duration of the blast treatment influenced.
  • a particular advantage of the invention Method is to be seen in that the transformation of structural components exclusively by Loading the ribs can be done so that an additional treatment of the Basic body can be dispensed with. Automation of the proposed method is also possible, especially if the geometry of the treated structural component Measured online and included in a control strategy to control the process.
  • the longitudinal and / or transverse ribs of the component are in Extended foot area by the Strahlstoffbeetzung. This results in a concave Curvature of the component, the term concave on the side provided with the ribs the plate-shaped base body is related.
  • the longitudinal ribs in the foot area extended whereas the transverse ribs in Extended head area, resulting in a combination of concave and convex Curvature of the component, creating a saddle-shaped geometry.
  • a saddle-shaped structure can thereby achieve that a curvature transverse to the longitudinal direction of the ribs by a Blasting agent treatment of the body in the known in the prior art (one-way) manner is performed.
  • the invention further ausgestaltend it is proposed that the particles of the blasting agent have a mean diameter of more than 4 mm. This can also be done Reliably transform structural components with thick-walled ribs. Large particles, in particular Large balls with a diameter of more than 4 mm, allow a penetration the rib to a great depth.
  • a development of the method according to the invention is that the particles of the Blasting agent from opposite, each other directed nozzles one Emerge jet device, which proceed in the longitudinal direction and in the vertical direction of the ribs becomes.
  • an automation in the implementation of the method and the Realization of various geometries allows.
  • a device for forming structural components in particular those for Use in aerospace, wherein the structural components of a plate-shaped Main body and right angles outgoing, integral with the body have connected, elongated and approximately mutually parallel ribs, allows the application of particles to surface areas of the structural component a blasting medium impacting at high speed, whereby a plastic Material deformation is caused, and is inventively by at least two nozzles for a directed exit each of a particle beam, wherein the two Particle beams are directed towards each other and the nozzles a greater distance from each other as the thickness of the rib.
  • the nozzles are in Interspaces between adjacent ribs placeable, whereby it is possible, the To direct particle beams at an angle of about 90 ° on the rib surface.
  • the nozzles together in Longitudinal direction and vertical direction of the ribs are movable, resulting in large Have components carried out at various points of the ribs. It can thus be a variety of possible geometric transformations of the Realize the component to be formed.
  • FIG. 1 shows only two of a device for forming structural components Nozzles 1a and 1b, from the front side 2 a and 2b, respectively, a slightly conical expanding beam 3a / 3b exits a particulate abrasive.
  • the particles of the Blasting agents have a spherical shape and have a diameter of more than 4 mm (For example, 6 mm).
  • the supply of the blasting agent to the nozzles 1 a and 1 b as well the other components of the blasting device are well known and therefore not shown in more detail.
  • a structural component 4 of a reshaped metallic material consists of a plate-shaped, only partially shown basic body 5 and a plurality of rectangular thereof outgoing, integrally connected to the main body 5 ribs 6, of which the For clarity, only a single section is shown.
  • the ribs 6 run parallel and equidistant at the machined component at such a distance to each other, that the nozzles 1a and 1b including the associated feeding in the Gaps between adjacent ribs 6 can be positioned.
  • the distance A between the nozzles 1a, 1b is dimensioned such that the rib 6 to be treated with the Thickness D is to be arranged between them and at the same time there is still enough space between them Nozzles 1a, 1b and the rib surfaces remain to a trouble-free flow of the To ensure blasting agent.
  • FIG. 1 shows the case with nozzles 1a / 1b oriented perpendicular to the rib 6. It is but also possible, the particle beams obliquely deviating from above at an angle of 90 ° on the surface of the ribs. The nozzles 1a / 1b can then in a Level above the rib top are arranged and moved.
  • Figures 2a and 2b can be a fragmentary and perspective in a See side view illustrated structural component 4, in which one of a fin head. 9 outgoing longitudinal strip 10 which runs parallel to the longitudinal extent of the rib 6, is particularly highlighted. This longitudinal strip 10, whose width 11 about 40% of the height 12 of the Make rib 6, is applied with the aid of the nozzle 2b with blasting agent. Corresponding is an opposite in the figures not visible longitudinal strip 10b with the same Width 11 also loaded with blasting agent, with the aid of the nozzle 2a.
  • the nozzle arrangement shown in Figure 1 is therefore a total, d. H. without the two Doors 2a / 2b change their position and orientation relative to each other, in the longitudinal direction of Rib 6 - for example, at a constant speed - movable.
  • Figure 2 c which form the structural component 4 after a Blasting treatment has taken in the field of longitudinal strips 10 a and 10 b. Due to the occurring in the region of the rib head 9 material elongation, d. H. one Extension of the component in this area, takes both the rib 6 and the integrally associated main body 5 a convex curved shape. Despite the curved shape are the side surfaces 8a and 8b of the rib 6 within each one Level.
  • the structural component 4 by a blasting treatment either the bottom 13 or the top 14 of the main body. 5 additionally obtained a curvature perpendicular to the longitudinal extent of the ribs 6.
  • a blasting treatment either the bottom 13 or the top 14 of the main body. 5 additionally obtained a curvature perpendicular to the longitudinal extent of the ribs 6.
  • Figures 3 a to 3c show the case that by means of a blasting agent treatment a concave curvature of the structural component 4 is to be generated.
  • the longitudinal strip 10a ' is in this case in the area of the rib foot 15 and joins immediately the top 14 of the main body 5 at.
  • the structural component 4 After blasting treatment of the opposing longitudinal strips 10 a 'and 10b ', the structural component 4 assumes the concavely curved shape shown in FIG. 3c. Due to the elongation of the rib 6 in the foot area at the same time the material of plate-shaped base 5 mitgedehnt. The width 11 of the longitudinal strips 10a 'and 10b' is again about 40% of the height 12 of the structural component 4th
  • FIGS. 4 and 5 allow the strain distribution in the region of FIG Blasting agent to be acted upon longitudinal strips 10a (on the rib head) or 10a '(am Remove ribbed foot). While the strain in the case shown in Figure 4 starting from a lower boundary line 16 of the edge strip 10a up to the Rib head 9 increases linearly from zero to a maximum value, the strain increases at the Structural component 4 according to Figure 5 also linear starting from an upper Border line 17 of the longitudinal edge strip 10 a 'up to the rib foot 15 at the transition in the main body 5, where a maximum value of the elongation is present.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Forging (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP01962548A 2000-07-27 2001-07-17 Verfahren und vorrichtung zum umformen von struktubauteilen Expired - Lifetime EP1409167B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10037029A DE10037029A1 (de) 2000-07-27 2000-07-27 Verfahren und Vorrichtung zum Umformen von Strukturbauteilen
DE10037029 2000-07-27
PCT/DE2001/002601 WO2002010332A1 (de) 2000-07-27 2001-07-17 Verfahren und vorrichtung zum umformen von struktubauteilen

Publications (2)

Publication Number Publication Date
EP1409167A1 EP1409167A1 (de) 2004-04-21
EP1409167B1 true EP1409167B1 (de) 2005-03-23

Family

ID=7650674

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01962548A Expired - Lifetime EP1409167B1 (de) 2000-07-27 2001-07-17 Verfahren und vorrichtung zum umformen von struktubauteilen

Country Status (12)

Country Link
US (1) US7181944B2 (xx)
EP (1) EP1409167B1 (xx)
JP (1) JP3795862B2 (xx)
KR (1) KR20030022168A (xx)
CN (1) CN1302127C (xx)
AT (1) ATE291500T1 (xx)
AU (1) AU2001283770A1 (xx)
BR (1) BR0112738B1 (xx)
CA (1) CA2412092C (xx)
DE (2) DE10037029A1 (xx)
IL (2) IL153336A0 (xx)
WO (1) WO2002010332A1 (xx)

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DE102004059592B4 (de) * 2004-12-10 2014-09-04 MTU Aero Engines AG Verfahren zum Oberflächenstrahlen von Hohlräumen, insbesondere von Hohlräumen an Gasturbinen
JP5468899B2 (ja) 2006-07-20 2014-04-09 アフィニウム ファーマシューティカルズ， インク． Ｆａｂｉインヒビターとしてのアクリルアミド誘導体
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DE102008010847A1 (de) * 2008-02-25 2009-08-27 Rolls-Royce Deutschland Ltd & Co Kg Verfahren und Vorrichtung zum Kugelstrahlverfestigen von Bliskschaufeln
US8235484B2 (en) * 2008-05-28 2012-08-07 Ray Paul C Printbar support mechanism
DE102008035585A1 (de) * 2008-07-31 2010-02-04 Rolls-Royce Deutschland Ltd & Co Kg Verfahren zur Herstellung metallischer Bauteile
DE102010001287A1 (de) 2010-01-27 2011-07-28 Rolls-Royce Deutschland Ltd & Co KG, 15827 Verfahren und Vorrichtung zur Oberflächenverfestigung von Bliskschaufeln
US20130084190A1 (en) * 2011-09-30 2013-04-04 General Electric Company Titanium aluminide articles with improved surface finish and methods for their manufacture
US9011205B2 (en) * 2012-02-15 2015-04-21 General Electric Company Titanium aluminide article with improved surface finish
ES2731474T3 (es) 2012-06-19 2019-11-15 Debiopharm Int Sa Derivados de profármaco de (E)-N-metil-N-((3-metilbenzofuran-2-il)metil)-3-(7-oxo-5,6,7,8-tetrahidro-1,8-naftiridin-3-il)acrilamida
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
EP3419628B1 (en) 2016-02-26 2020-10-14 Debiopharm International SA Medicament for treatment of diabetic foot infections
CN106011415A (zh) * 2016-05-31 2016-10-12 芜湖鸣人热能设备有限公司 锅炉用钢板喷丸箱
CN106541333B (zh) * 2016-10-31 2018-08-03 中国航空工业集团公司北京航空材料研究院 一种“h”形悬臂结构喷丸后变形的校形方法
US10914384B2 (en) * 2018-05-03 2021-02-09 Solar Turbines Incorporated Method for refurbishing an assembly of a machine
US11298799B2 (en) 2018-05-03 2022-04-12 General Electric Company Dual sided shot peening of BLISK airfoils
CN111729971B (zh) * 2020-06-24 2021-07-27 中国航空制造技术研究院 长桁过渡区喷丸成形过程中外形精度的控制方法
DE102020119693A1 (de) 2020-07-27 2022-01-27 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Ermitteln von Konstruktionsdaten, Verwendung eines solchen Verfahrens, elektronische Recheneinrichtung, Computerprogramm und computerlesbares Medium
CN113210552B (zh) * 2021-05-10 2023-05-09 山西中工重型锻压有限公司 一种螺栓盒六合一整体锻造的生产方法
CN116713381B (zh) * 2023-06-27 2024-06-07 中国航空制造技术研究院 一种带筋壁板的喷丸成形预弯工装及方法

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Also Published As

Publication number Publication date
IL153336A0 (en) 2003-07-06
JP3795862B2 (ja) 2006-07-12
ATE291500T1 (de) 2005-04-15
CN1444663A (zh) 2003-09-24
CA2412092C (en) 2007-05-08
AU2001283770A1 (en) 2002-02-13
CN1302127C (zh) 2007-02-28
KR20030022168A (ko) 2003-03-15
DE10037029A1 (de) 2002-02-28
US7181944B2 (en) 2007-02-27
US20040025555A1 (en) 2004-02-12
BR0112738A (pt) 2003-06-24
IL153336A (en) 2006-04-10
DE50105741D1 (de) 2005-04-28
JP2004536712A (ja) 2004-12-09
BR0112738B1 (pt) 2009-01-13
EP1409167A1 (de) 2004-04-21
WO2002010332A1 (de) 2002-02-07
CA2412092A1 (en) 2002-02-07

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