EP1207973B1 - Verfahren und anordnung zum ausbeulen von blechteilen - Google Patents
Verfahren und anordnung zum ausbeulen von blechteilen Download PDFInfo
- Publication number
- EP1207973B1 EP1207973B1 EP00958366A EP00958366A EP1207973B1 EP 1207973 B1 EP1207973 B1 EP 1207973B1 EP 00958366 A EP00958366 A EP 00958366A EP 00958366 A EP00958366 A EP 00958366A EP 1207973 B1 EP1207973 B1 EP 1207973B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- region
- temperature
- dent
- warming
- metal part
- 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
Links
Images
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
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/06—Removing local distortions
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S72/00—Metal deforming
- Y10S72/705—Vehicle body or frame straightener
Definitions
- the invention relates to a method for bulging sheet metal parts, in particular of painted parts of a vehicle body, and an arrangement for performing this method (see e.g. DE-A-195 14 285).
- Hail damage to motor vehicles especially on the storage bins new cars parked by car manufacturers in Germany alone, on average, to several a hundred million DM.
- This hail damage usually has the shape of small bumps ("dents").
- Their shape and dimensions often allow manual pushing out - something larger dents where there is a plastic deformation of the sheet occurred, but cannot be pushed out.
- There are several ways to remove such larger bumps Devices have been proposed, for example work on the basis of negative pressure or on a magnetic basis and a restoration of the original form of the affected Enable sheet metal part without complex disassembly work should.
- the use of these devices requires partly great experience and therefore the use accordingly highly paid skilled workers and nonetheless provides many benefits not the desired success. In many cases, therefore additional elaborate painting work indispensable.
- the invention is therefore based on the object of a method and to provide an arrangement for bulging sheet metal parts, which is characterized in particular by low production and operating costs and high utility value.
- the task is carried out in terms of its procedural aspect a method with the features of claim 1 and with regard their device aspect by an arrangement with the Features of claim 8 solved.
- the invention includes the essential idea of Removal of small dents or dents in a sheet metal part thermal energy in a narrowly limited area of the same - just enter the area of the dent or dent and the resulting mechanical stress gradient the sheet springs back into its original state to reach.
- the inventors have surprisingly found that this effect even when heated to comparatively low temperatures can be achieved, which is clearly below critical temperatures are at which conventional surface coatings of sheet metal parts (especially the paint layer a motor vehicle body part) a thermal Experience damage. This enables a very broad application of the proposed method, specifically for rectification minor body damage to motor vehicles, such as the hail damage mentioned above.
- the local heating by directional radiation with an essential Radiation fraction in the near infrared range in particular in the wavelength range between 800 nm and 2 ⁇ m.
- the method with a special simple and inexpensive to manufacture and also without special Experience of handling device realizable. Appropriate adjustment of the radiation wavelength to the Material characteristics of the sheet and any coating enables in particular an energy input in the essentially directly into the sheet, with extensive protection the coating.
- the sheet metal part to be dented can be inductive Paths or by a directed hot air flow be heated locally.
- the heating is targeted and limited, and in particular essentially point-like in Center area and / or ring-shaped in the edge area of those to be removed Bump or dent. This will target the Jump back into the initial shape causing voltage gradient built up.
- the local Heating limited in particular to a final temperature in the case of irreversible changes in the coating (approx a layer of lacquer) cannot yet occur.
- Even under Compliance with this limiting condition exists through suitable Specification of the size and shape of the heating zone and if necessary also the heating rate sufficient Degrees of freedom for disposal differ large and differently shaped bumps in sheet metal parts different materials, especially in painted steel sheets.
- the temperature limit mentioned can be in the case of machining of sheet metal parts of the same type with similar ones Coatings - such as to remove hail damage on motor vehicles - by appropriate design of the Heater done so that on a temperature measurement can optionally be dispensed with. Something is more complex a procedure under temperature detection and regulation, but this enables the use of a corresponding one Device for very different sheets and Coatings.
- a further relief in the implementation of the procedure results from a configuration in which the location of the local warming marked with a visible beam of light and the heating device onto the corresponding light spot the sheet metal part is aligned.
- An arrangement for performing the method explained above particularly includes an essentially non-contact working heater, which expediently a adjustable heat input range. It is through it ideal for bumps of different sizes and sheets of different sizes Customizable thickness.
- the heater works in the near infrared range (NIR) and has a predetermined directional characteristic for the emitted Radiation on.
- NIR near infrared range
- Such a heating device preferably comprises an almost punctiform halogen lamp, which at a surface temperature of 2500K or more, in particular of 2900K or more.
- the NIR radiant heater has a variable version Directional characteristic, in particular through an aperture or panels and / or mechanical adjustment means - in particular to adjust the position or shape of a reflector - is realized.
- the arrangement includes in particular a temperature measuring device for detecting the Surface temperature of the sheet metal part in the heating area, which expediently with a control input of the heating device is connected, so that depending on the result a temperature control (at least as Temperature limitation) is carried out.
- a temperature control at least as Temperature limitation
- the temperature measuring device works without contact and specifically has a radiation pyrometer.
- a target device for aligning the heating device provided on the area of a bump specifically includes one with the heater firmly connected spotlights for visible light, the self-focusing or are assigned to the focusing means, around a narrowly limited marking light spot on the sheet metal part to create. This enables the operator to be precise Position the heater with respect to the dent.
- An optical measurement device is also preferred provided to record the current shape of the sheet metal part, which, for example, as a laser triangulation device is trained.
- This facility gives the result of the survey the surface shape of the sheet metal part in particular a "done" signal when the bump jumps back is detected in the initial state of the sheet metal part. This Signal can immediately turn off the heater used and / or visually displayed to the operator.
- a combined use of a single one is particularly expedient Light source as light source for the targeting and measuring device, and is particularly advantageous here Use of a laser radiation source, for example one inexpensive laser diode device.
- a dent hood 1 is shown in a sketch, that for denting a small dent B in one with one Car body panel 3 provided with surface coating 3a serves.
- the outer shape of the dent hood 1 is determined by a metallic or at least on the inside metallized Reflector 5 in the form of a cut in an end region Rotational ellipsoids with the two focal points F1 and F2.
- the reflector 5 has a peripheral one at its edge Rubber ring 7, with which he on the body panel 3 can be placed gently.
- the reflector 5 a recess 5a for observing the area of the bulge B. in the body panel 3 with the bulge hood 1 in place.
- a plastic handle 9 is on the reflector easy and safe handling of the dent hood 1 also attached during their operation.
- the dent hood is connected to the AC network via a power cable 11 and via a data line 13 with a (here not shown) connected measuring and control device.
- a plastic support screwed to the reflector 5 15 provided the one (not shown) transformer records and towards the focal point F1 in a lamp holder 15a runs out and two brackets 15b, 15c for additional, components described below.
- a halogen lamp 17 for example a Xe or Kr lamp that is operated to have a Surface temperature of approx. 2900K and therefore an essential one Radiation share in the near infrared (NIR) range between 800 nm and 2 ⁇ m.
- the halogen lamp 17 sits in the Focal point F1 so that the NIR radiation emitted by it by the ellipsoidal reflector 5 largely in the focal point F2 and thus in the center of the bump B in Body sheet 3 is reflected.
- the boom 15b of the plastic carrier 15 carries on the one hand a laser diode provided with simple imaging optics 19, which is positioned so that its radiation onto the Focus F2 is directed.
- the boom also carries 15b a radiation pyrometer element, also directed to the focal point F2 21 for recording the surface temperature of the body panel 3 in the area of the dent B.
- the Cantilever 15c carries a photodetector assembly 23 which (e.g. designed and positioned as a simple CCD array) is that it reflected that from the body panel 3 Radiation from the laser diode 19 depending on the state of the Body sheet metal in the area of dent B on different wise.
- the photodetector arrangement 23 can in particular be designed so that the reflected radiation from the laser diode 19 only when undisturbed (dashed in the figure drawn) course of the body panel reached, or that reflected from the area of the bump B. Radiation reaches them in a different position than that of undisturbed (bulged) sheet of reflected radiation.
- the photodetector arrangement 23 thus serves in cooperation with the laser diode 19 as a simple laser triangulation device for measuring the surface shape of the body panel 3 in the area of dent B; see also further below.
- the laser diode 19 also serves to mark the Focal point F2 and thus the location of the maximum energy input the NIR radiation of the halogen lamp 17 and enables an operator appropriate positioning of the Bulge hood 1 based on the observation of the laser diode 19 light spots generated on the body panel 3 through the recess 5a of the reflector 5.
- the dent hood 1 is handled such that it over the Bulge B placed on the body panel 3, then the laser diode 19 turned on and its light spot by moving the hood to the center of the bump B. and finally by actuating a (not shown) Mains switch the halogen lamp 17 for heating the area the bump B is turned on.
- the photodetector arrangement 23 the shape of the body panel 3 detected in the area of the bulge B and the halogen lamp 17 switched off, if the bump in the original shape of the body panel jumped back or a predetermined allowable Limit temperature is reached.
- the measurement and control engineering structure is a Bulge arrangement 100 in the form of a functional block diagram shown schematically.
- the bulge arrangement 100 is on the AC network connected, and a power supply unit 101 provides the operating voltage from the mains voltage the halogen lamp 17 required operating voltage and stabilizes this.
- This operating voltage becomes the cooling lamp 17 from the power supply unit 101 via a switching and Power control stage 103 supplied the two control inputs 103a, 103b.
- Also via the power supply unit 101 is - via a rectifier stage 105 and a separate switch 107 - supplies the laser diode 19.
- the power supply unit 101 supplies one on the input side connected to the radiation pyrometer element 21 Temperature measuring stage 109, the output on the one hand with the control input 103b of the switching and power control stage 103 and on the other hand is connected to a display unit 111.
- a display unit 111 there is also an input side with the photodetector arrangement 23 connected surface geometry evaluation unit 113 supplied by the power supply unit 101.
- the Surface geometry evaluation unit is on the output side with the control input 103a of the switching and power control stage 103 and also connected to the display unit 111.
- a temperature control at least in the sense of limiting the surface temperature realized to a permissible maximum value is, in which the paint surface 3 certainly no damage takes. This is done by reducing the radiation power when approaching the permissible maximum temperature or temporarily Switching off the halogen lamp 17.
- a complete switch-off the halogen lamp 17 is over the photodetector arrangement 23 and the surface geometry evaluation unit 113 and the control inputs 103a of the switching and power control stage 103 causes as soon as the result of a given Signal processing in the surface geometry evaluation unit was found to be a significant Change of the sheet geometry in the area of the dent in the sense jumping back into the undisturbed initial form is.
- the operator is informed of the actual via the display unit 111 Surface temperature and - for example by a signal lamp - about reaching the original Sheet metal shape, i.e. the success of the denting process, informed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Description
- Fig. 1
- eine Querschnittsdarstellung einer Ausbeulhaube als Kernstück einer Anordnung zum Ausbeulen von Blechteilen gemäß einer Ausführungsform der Erfindung und
- Fig. 2
- eine schematische Darstellung der wesentlichen Komponenten einer Ausbeulanordnung gemäß einer Ausführungsform der Erfindung in Form eines FuriktionsBlockschaltbildes.
- 1
- Ausbeulhaube
- 3
- KFZ-Karosserieblech
- 3a
- Oberflächenlackierung
- 5
- Reflektor
- 5a
- Aussparung
- 7
- Gummiring
- 9
- Kunststoff-Handgriff
- 11
- Stromkabel
- 13
- Datenleitung
- 15
- Kunststoffträger
- 15a
- Lampenfassung
- 15b, 15c
- Ausleger
- 17
- Halogenlampe
- 19
- Laserdiode
- 21
- Strahlungspyrometer-Element
- 23
- Fotodetektoranordnung
- 100
- Ausbeulanordnung
- 101
- Stromversorgungseinheit
- 103
- Schalt- und Leistungssteuerstufe
- 103a, 103b
- Steuereingang
- 105
- Gleichrichterstufe
- 107
- Schalter
- 109
- Temperaturmeßstufe
- 111
- Anzeigeeinheit
- 113
- Oberflächengeometrie-Auswertungseinheit
- F1, F2
- Brennpunkt
- B
- Beule
Claims (15)
- Verfahren zum Ausbeulen von Blechteilen, insbesondere von lackierten Teilen einer Fahrzeugkarosserie, wobei das Blechteil (3) im Bereich einer Beule (B) im wesentlichen berührungslos lokal erwärmt wird, derart, daß ein durch die lokale Erwärmung erzeugter mechanischer Spannungsgradient ein Zurückspringen der Beule in die Ursprungsform des Blechteiles bewirkt,
dadurch gekennzeichnet, daß die lokale Erwärmung durch gerichtete Bestrahlung mit einem wesentlichen Strahlungsanteil im nahen Infrarotbereich, insbesondere im Wellenlängenbereich zwischen 800 nm und 2 µm ausgeführt wird. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, daß die lokale Erwärmung im wesentlichen punktförmig im Mittenbereich und/oder ringförmig im Randbereich der Beule ausgeführt wird. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die lokale Erwärmung auf eine Endtemperatur unterhalb einer kritischen Temperatur begrenzt wird, bei der irreversible Veränderungen in einer Beschichtung (3a) des Blechteiles (3), insbesondere einer Lackschicht, erfolgen. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die lokale Erwärmung, insbesondere bei einem lackierten Karosserieblechteil, auf eine Endtemperatur im Bereich zwischen 100° Celsius und 200° Celsius ausgefhrt wird. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß während der lokalen Erwärmung die aktuelle Gestalt des Blechteils (3) im Bereich der Beule (B) erfaßt und im Ansprechen auf die Erfassung eines Zurückspringens in die Ausgangsform die Erwärmung beendet wird. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß während der lokalen Erwärmung die Temperatur am Erwärmungsort gemessen wird. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß der Bereich einer Beule (B) als Ort der lokalen Erwärmung mit einem sichtbaren Lichtstrahl markiert wird. - Anordnung zur Durchführung des Verfahrens nach einem der vorhergehenden Ansprüche,
gekennzeichnet durch
eine im nahen Infrarotbereich, insbesondere im Wellenlängenbereich zwischen 800 mm und 2 µm, arbeitende Heizeinrichtung (5, 17, 101, 103), insbesondere mit einstellbarem Wärmeeintragsbereich und/oder einstellbarer Heizleistung, zur im wesentlichen berührungslosen lokalen Erwärmung des Blechteiles (3). - Anordnung nach Anspruch 8,
dadurch gekennzeichnet, daß die Heizeinrichtung (5, 17, 101, 103) als NIR-Strahlungsheizung mit vorbestimmter Richtcharakteristik ausgebildet ist, die insbesondere eine annähernd punktförmige Halogenlampe (17) aufweist, welche bei einer Oberflächentemperatur von 2500K oder mehr betrieben wird. - Anordnung nach Anspruch 9,
dadurch gekennzeichnet, daß die NIR-Strahlungsheizung eine, insbesondere durch mindestens eine Blende und/oder mechanische Verstellmittel, veränderliche Richtcharakteristik aufweist. - Anordnung nach einem der Ansprüche 8-10,
gekennzeichnet durch
eine Temperaturmesseinrichtung (21, 109) zur Erfassung der Temperatur des Blechteils (3) im Erwärmungsbereich (B), die insbesondere mit einem Steuereingang (103b) der Heizeinrichtung (103) verbunden ist, derart, daß durch Steuerung der Heizeinrichtung im Ansprechen auf das Ausgangssignal der Temperaturmesseinrichtung die Temperatur im Erwärmungsbereich mindestens begrenzt wird. - Anordnung nach Anspruch 11,
dadurch gekennzeichnet, daß die Temperaturmesseinrichtung berührungslos arbeitet und insbesondere ein Strahlungspyrometer (21) aufweist. - Anordnung nach einem der Ansprüche 8-12,
gekennzeichnet durch
eine Zieleinrichtung (19) zum Ausrichten der Heizeinrichtung (5, 17) auf den Bereich der Beule (B), wobei die Zieleinrichtung insbesondere einen mit der Heizeinrichtung fest verbundenen Strahler für fokussiertes sichtbares Licht aufweist. - Anordnung nach einem der Ansprüche 8-13,
gekennzeichnet durch
eine optische Vermessungseinrichtung (19, 23, 113) zur Erfassung der aktuellen Gestalt des Blechteiles (B) im Bereich der Beule (B). - Anordnung nach Anspruch 13 oder 14,
dadurch gekennzeichnet, daß die Ziel- und/oder die Vermessungseinrichtung eine Laser-Strahlungsquelle (19) aufweist, welche insbesondere als gemeinsame Strahlungsquelle für die Ziel- und die Vermessungseinrichtung dient.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19937277 | 1999-08-06 | ||
DE19937277A DE19937277C2 (de) | 1999-08-06 | 1999-08-06 | Verfahren und Vorrichtung zum Ausbeulen eines Blechteiles |
PCT/EP2000/007493 WO2001010579A1 (de) | 1999-08-06 | 2000-08-02 | Verfahren und anordnung zum ausbeulen von blechteilen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1207973A1 EP1207973A1 (de) | 2002-05-29 |
EP1207973B1 true EP1207973B1 (de) | 2003-02-19 |
Family
ID=7917530
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00958366A Expired - Lifetime EP1207973B1 (de) | 1999-08-06 | 2000-08-02 | Verfahren und anordnung zum ausbeulen von blechteilen |
Country Status (5)
Country | Link |
---|---|
US (1) | US6684677B1 (de) |
EP (1) | EP1207973B1 (de) |
AU (1) | AU6991600A (de) |
DE (2) | DE19937277C2 (de) |
WO (1) | WO2001010579A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004028568B4 (de) * | 2004-06-15 | 2011-06-16 | Gerhard Klaiber | Manipulierwerkzeug |
EP1881875A1 (de) * | 2005-05-12 | 2008-01-30 | Ralph Meichtry | Ausbeulverfahren und -vorrichtung |
DE102005025367B4 (de) * | 2005-05-31 | 2011-02-03 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Verfahren zum Ausbilden einer Struktur mit optimierter Raumform |
US7607332B2 (en) * | 2007-10-11 | 2009-10-27 | Beom-Seok Choe | Apparatus for removing dent in sheet metal and method thereof |
DE102010025125A1 (de) * | 2010-06-25 | 2011-12-29 | Bombardier Transportation Gmbh | Verfahren zum Richten von Blechen mit einem elektrischen Lichtbogen |
US20150013406A1 (en) * | 2013-07-09 | 2015-01-15 | General Electric Company | System and method for removing dents from a wind turbine tower |
US20160016255A1 (en) * | 2014-07-17 | 2016-01-21 | Siemens Energy, Inc. | Laser correction of metal deformation |
US9826577B2 (en) * | 2014-08-08 | 2017-11-21 | Ralph Meichtry | Method and device for removing dents |
EP3015845A1 (de) * | 2014-11-03 | 2016-05-04 | Anton Paar TriTec SA | Einrichtung zum Beheizen einer Materialprüfungsvorrichtung |
US10288045B2 (en) * | 2015-12-21 | 2019-05-14 | General Electric Company | System and method for repairing dents in wind turbine tower sections and a related dent repair tool |
US20190240711A1 (en) | 2016-09-13 | 2019-08-08 | Ralph Meichtry | Method and device for removing dents |
DE102018203728A1 (de) | 2018-03-13 | 2019-09-19 | Audi Ag | Verfahren zur Erzeugung einer Springbeule in einem Blechteil |
CN110653279B (zh) * | 2019-10-08 | 2020-11-27 | 日照杜卡机电设备有限公司 | 一种利用高频电磁波原理的汽车钣金件修复装置 |
DE102021133989A1 (de) | 2021-12-21 | 2023-06-22 | Theodor Gräbener GmbH & Co. KG | Verfahren und Vorrichtung zum Glätten plattenförmiger Bauteile, insbesondere zur Herstellung von Bipolarplatten für ein elektrochemisches System, wie beispielsweise Brennstoffzellen |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1419497A (fr) * | 1965-01-05 | 1965-11-26 | Bautzen Waggonbau Veb | Procédé et dispositif pour redresser et tendre des tôles par chauffage |
US3852990A (en) * | 1973-08-06 | 1974-12-10 | Lockheed Aircraft Corp | Process for removing surface distortion from a metal article |
US3854029A (en) * | 1973-12-10 | 1974-12-10 | T Fenollar | Method and apparatus for repairing sheet elements of automobiles bodies |
NL7401688A (nl) * | 1974-02-07 | 1975-08-11 | Theodore Robert Fenollar | Werkwijze en inrichting voor het repareren van serie-onderdelen van een automobiel. |
US3959619A (en) * | 1974-03-27 | 1976-05-25 | Erwin Schill | Method of drawing-in or flattening dents in sheet metal |
DE2515296C3 (de) * | 1975-04-08 | 1980-04-17 | Ets. Robert Brendle Et Cie. S.A., Saint-Louis (Frankreich) | Ausbeulgerät |
JPS58187213A (ja) * | 1982-04-28 | 1983-11-01 | Hitachi Ltd | 薄板の歪取り方法及び治具 |
JPS5964119A (ja) * | 1982-10-06 | 1984-04-12 | Hitachi Ltd | 薄板の線状加熱歪取り方法 |
JPS5970426A (ja) * | 1982-10-12 | 1984-04-20 | Nippon Sharyo Seizo Kaisha Ltd | 金属板の歪取り方法 |
DE4234342C2 (de) * | 1992-10-12 | 1998-05-14 | Fraunhofer Ges Forschung | Verfahren zur Materialbearbeitung mit Laserstrahlung |
US5479804A (en) | 1994-09-28 | 1996-01-02 | Clay L. Cook | Tools for paintless dent repair |
DE19514285C1 (de) * | 1995-04-24 | 1996-06-20 | Fraunhofer Ges Forschung | Vorrichtung zum Umformen von Werkstücken mit Laserdiodenstrahlung |
DE19603974B4 (de) * | 1996-01-26 | 2004-05-19 | Udo Prof. Dr.-Ing. Hellwig | Verfahren zum Verformen von Körpern und Materialbahnen |
FR2755885B1 (fr) * | 1996-11-18 | 1999-02-19 | Sarrion Sanchez Christian | Dispositif et procede pour redresser des elements metalliques et plastiques deformes |
DE19804577C2 (de) * | 1998-02-05 | 2001-10-31 | Fraunhofer Ges Forschung | Verfahren und Vorrichtung zur Beseitigung von Formabweichungen an metallischen Bauteilen |
DE29922180U1 (de) * | 1999-12-17 | 2000-04-20 | Bauerfeld Frank | Laservorrichtung zum Rückverformen beschädigter Kraftfahrzeug-Karosserien |
-
1999
- 1999-08-06 DE DE19937277A patent/DE19937277C2/de not_active Expired - Fee Related
-
2000
- 2000-08-02 DE DE50001302T patent/DE50001302D1/de not_active Expired - Fee Related
- 2000-08-02 WO PCT/EP2000/007493 patent/WO2001010579A1/de active IP Right Grant
- 2000-08-02 EP EP00958366A patent/EP1207973B1/de not_active Expired - Lifetime
- 2000-08-02 US US10/048,898 patent/US6684677B1/en not_active Expired - Fee Related
- 2000-08-02 AU AU69916/00A patent/AU6991600A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
WO2001010579A1 (de) | 2001-02-15 |
EP1207973A1 (de) | 2002-05-29 |
DE19937277A1 (de) | 2001-02-22 |
DE19937277C2 (de) | 2001-10-18 |
US6684677B1 (en) | 2004-02-03 |
DE50001302D1 (de) | 2003-03-27 |
AU6991600A (en) | 2001-03-05 |
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