US20060090530A1 - Method of producing individualized vehicle parts, particularly individualized vehicle body skin parts consisting of series-produced vehicle body skin parts, as well as vehicle body skin parts manufactured by this method - Google Patents

Method of producing individualized vehicle parts, particularly individualized vehicle body skin parts consisting of series-produced vehicle body skin parts, as well as vehicle body skin parts manufactured by this method Download PDF

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Publication number
US20060090530A1
US20060090530A1 US11/287,203 US28720305A US2006090530A1 US 20060090530 A1 US20060090530 A1 US 20060090530A1 US 28720305 A US28720305 A US 28720305A US 2006090530 A1 US2006090530 A1 US 2006090530A1
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United States
Prior art keywords
mandrel
produced
forming tool
serial
serial part
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Abandoned
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US11/287,203
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English (en)
Inventor
Maik Hammer
Gero Kempf
Stefan Bartscher
Tobias Loebel
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.)
Bayerische Motoren Werke AG
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Bayerische Motoren Werke AG
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Assigned to BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT reassignment BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BARTSCHER, STEFAN, HAMMER, MAIK, KEMPF, GERO, LOEBEL, TOBIAS
Publication of US20060090530A1 publication Critical patent/US20060090530A1/en
Abandoned legal-status Critical Current

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    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/26—Deep-drawing for making peculiarly, e.g. irregularly, shaped articles
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/14—Spinning
    • B21D22/18—Spinning using tools guided to produce the required profile
    • 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
    • B21D53/00—Making other particular articles
    • B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards

Definitions

  • the present invention relates to a method of producing vehicle body skin parts, as well as to a vehicle body skin part produced by this method.
  • Vehicle body parts such as engine hoods, roofs, fenders, side panels, trunk lids, etc. are normally produced by deep drawing from flat starting metal sheets.
  • the tools of deep-drawing presses are very expensive and can, therefore, be used economically only for relatively large piece numbers.
  • the sheet geometries which can be produced by means of conventional deep-drawing presses are limited with respect to their complexity.
  • vehicle designers demand increasingly broader design ranges, which demands cannot always be met by means of conventional deep-drawing tools.
  • Modern vehicle designs are characterized, for example, by transitions between convex and concave component sections, as well as by greatly accentuated characteristic lines or edges with partially very narrow radii of curvature. This already occasionally limits manufacturing possibilities when conventional deep-drawing methods are used.
  • dieless forming technology which is known, for example, from U.S. Pat. No. 6,216,508 B1 uses a completely different approach. As the name indicates, the metal sheet forming takes place in a “dieless” manner; that is, without a mold, in the conventional sense.
  • a flat sheet metal blank is clamped in its edge area into a holding device.
  • a forming mandrel is used, which is arranged essentially perpendicularly with respect to the clamped-in sheet metal blank and may be moved in the X- and Y-direction. An advancing movement in the Z-direction is possible, either by moving the advancing mandrel or by perpendicularly moving the sheet metal blank clamped in the holding device.
  • the basic principle of dieless forming consists of the fact that a flat sheet metal blank, that is, a metal sheet which is not preformed, is formed into a three-dimensional component by use of the forming mandrel.
  • the forming mandrel is pressed against the sheet metal blank.
  • a three-dimensional sheet metal part can be produced by an incremental advancing of the forming mandrel.
  • a vehicle body part for example, of an engine hood
  • An aspect of the invention is to provide a method by which components, particularly, skin components for vehicles, and particularly those for small-series or miniseries vehicles, may be produced individually and, at the same time, cost-effectively corresponding to the customer's wishes, or to provide a body skin part which meets these requirements.
  • the present invention meets these needs by providing a method for producing vehicle body parts, wherein a three-dimensionally preformed, semifinished or finished serial part is produced from a starting material for a vehicle model manufactured in a series production.
  • An individualized part is produced from the preformed serial part by way of a mandrel-type forming tool, which is pressed from one side against the serial part and is simultaneously moved relative to the serial part in order to additionally impress a three-dimensional contour in the serial part.
  • the invention is not limited to workpieces made of sheet metal.
  • the invention can basically be used for all types of components, such as structural parts.
  • the invention is also not limited to components made of sheet metal.
  • the present invention primarily consists of meeting individual customers' wishes in that a “serial skin part” is “individualized” by use of a finishing using a “forming tool” which is pressed against the serial skin part and is moved relative to the serial skin part.
  • characteristic lines, writing patterns, or the like may be impressed into semifinished or finished vehicle body shell parts, such as front opening hoods, tailgates, doors, side panels, fenders, roofs, etc.
  • characteristic lines or component edges already present in the serial skin part may be redrawn or deepened and therefore made to be more pronounced than would be possible, or is possible, in the case of the serial skin parts used for conventional series-produced vehicles.
  • serial-like vehicles are offered in small series or as individual vehicles, the customers' wishes for an individualization existing particularly in the case of high-priced vehicles may be met more easily.
  • vehicles obtain an individual “design character” and, therefore, are clearly visually different from other vehicles of the respective vehicle type.
  • the invention is explicitly not limited to the production of skin parts for small-series vehicles or individual vehicles.
  • vehicles are frequently subjected to a “model update”—a so-called “facelift”.
  • facelift Within the scope of model updates, the skin parts of the vehicles are occasionally also updated to a certain extent or made more attractive.
  • Another significant advantage of the invention consists of the fact that a corresponding “reworking station” may be integrated without any problem into an existing production line. Serial parts which are intended for individual vehicles or for individualized vehicles are reworked in the “reworking station”. Serial parts for conventional series-produced vehicles pass through the reworking station without being reworked. Naturally, a reworking according to the invention is also contemplated outside the production line in separate working stations.
  • the basic principle of the method according to the invention consists of impressing a three-dimensional contour into a sheet metal part by use of a forming tool which may, for example, have a mandrel-type design.
  • the forming tool is also called a “forming mandrel” which, however, should not be understood to be limiting with respect to a certain tool shape.
  • the contour to be produced may, for example, have the shape of a groove, of an elevation, or another shape.
  • the invention comprises a “one-curve reworking” as well as, to a certain extent, an “incremental reworking”.
  • the forming tool used is applied to the component to be reworked, is pressed against the component, and is subsequently moved in a single movement relative to the component.
  • the reworking therefore takes place in that the forming tool is moved “in one pass”, whereby the desired geometry, for example, an elevation, a characteristic line, or the like, is impressed into the component.
  • a geometry, such as an elevation, produced in a first reworking operation may be deepened, that is, be made more pronounced, by a corresponding application movement—essentially perpendicular to the component to be reworked—in another reworking operation.
  • a geometry, such as an elevation, produced by a first reworking operation may be “broadened” and in this manner made more pronounced by a slight displacement of the forming tool relative to the component and essentially transversely to the moving direction of the first reworking operation.
  • the invention is not directed, as in U.S. Pat. No. 6,216,508 B1, to the production of complete vehicle body parts by the dieless forming method. This would be much too time-consuming and uneconomical.
  • the present invention consists of the “additional” working or individualization of individual areas of semifinished or finished components, particularly body shell parts.
  • finished means that the body shell part would be finished for a painting operation, but before that painting operation is reworked in one component area or in several component areas.
  • “Semifinished” means that, after the reworking according to the invention, the body shell part is reworked further; for example, by after treating the surface, trimming or edging of component edges, drilling of holes, threading, or the like, and is painted only subsequently.
  • the serial skin part or the body shell part is clamped into a holding device.
  • the holding device may, for example, be formed by a plurality of individual “holding points” or “holding sections”. It is also contemplated to use suction-cup-type holding elements. Suction-cup-type holding elements have the advantage that the danger of damage to the body skin sheet metal part, particularly the danger of damaging the component surface, during the clamping-in and during the working is reduced because the workpiece is not clamped between two holding elements, but rather is fixed by a vacuum.
  • the workpiece that is, the serial body skin part
  • the workpiece is clamped in before the reworking in such a manner that its geometry in the edge area is not changed by the reworking.
  • connection measurements or gap measurements which occur during the later installation of the body skin parts into a vehicle body, should not be changed by the reworking in comparison to the “normal series-produced vehicle”.
  • the series-produced body skin part may be held either exclusively by means of a holding device, for example, in its edge area; in the case of more complex component geometries or in the case of three-dimensional contours, which have a considerable surface gradient, particularly in the case of relatively “sharp” edges, one or more counterholders or supported elements may be used.
  • Such counterholders or supporting elements are pressed from the side situated opposite the forming mandrel, that is, “from behind” against the series-produced body skin part.
  • Edge-shaped or curved “supporting elements” may be used as the counterholders.
  • the counterholder may also have the shape of a “die”, which has a “negative shape” corresponding to a three-dimensional contour to be produced.
  • the use of such a counterholder is not a necessity.
  • one counterholder is preferably arranged in the moving direction of the forming tool on the left beside the geometry to be produced, and the other counterholder is preferably arranged on the right beside the geometry to be produced. Even the selection or the change of the mutual spacing of the counterholders and the lateral distance of the counterholders from the geometry to be produced can influence the shape of the geometry to be produced, which will be explained in detail below.
  • the forming mandrel may, for example, have a smooth, convexly curved tool tip. It may be symmetrical or asymmetrical.
  • the tool tip may also be formed by a rotatably disposed ball which rolls on the series-produced skin part during the working of the series-produced skin part, whereby the mechanical stressing of the series-produced skin part is reduced in the forming area.
  • a “rolling mandrel” may also be used, in the case of which the tool tip is formed by a wheel or by a roller.
  • Multiple mandrels or multiple-armed mandrels may also be used.
  • the forming mandrel must not necessarily have a round or rounded tip.
  • a forming mandrel with a relatively sharp-edged tip may also be used.
  • the tip may also end flatly, be wheel-shaped, plow-shaped or similar to a hull shape.
  • a forming mandrel with a facetted tool tip is also contemplated.
  • the forming mandrel also does not necessarily have to consist of steel or tool steel. Forming mandrels made of a plastic material, of wood, ice, sand, concrete or other materials are also contemplated.
  • the tool tip of the forming mandrel may be hardened, unhardened, coated or uncoated. It may, for example, be provided with a wear-resistant single or hybrid coating. In this case, the forming mandrel may be guided in up to six axes relative to the component in order to achieve the desired “forming result”. During the reworking, the forming mandrel or the tool tip of the forming mandrel may be rotated or oscillated also about the longitudinal axis of the forming mandrel.
  • a forming mandrel with or without lubrication may be used.
  • a lubricating system may, for example, be integrated in the forming mandrel.
  • the lubricating system may also be arranged on the outside on the forming mandrel.
  • the lubricating system ensures that the “working point”, that is, the point at which the forming mandrel touches the series-produced skin part, is continuously supplied with sufficient lubricant.
  • a lubricating oil can be used as the lubricating fluid.
  • a forming mandrel may be used whose tool tip can be adjusted during the working operation. It may, for example, be provided that the width of the tool tip can be changed transversely to the moving direction of the tool mandrel during the working operation. In this manner, geometries of a variable “broadness” may be produced in a single operation.
  • the moving speed at which the forming mandrel is moved during the reworking relative to the series-produced vehicle body skin part does not have to be constant.
  • the moving speed may be varied as a function of the momentary “degree of deformation” of the series-produced skin part. At lower degrees of deformation, a high moving speed can be selected; at higher degrees of deformation, a lower moving speed can be selected.
  • the forming mandrel as well as the “workpiece” may be heated or cooled or have an ambient temperature, if required.
  • a heating of the forming mandrel results in a feeding of heat into the area of the workpiece to be formed, whereby its ductility is increased, which facilitates the forming. Particularly in the case of plastic parts, this facilitates the forming.
  • the series-produced skin part may also be preheated or heated directly during the reworking.
  • the series-produced skin part may be heated by hot air, heat radiators, lasers or by another heat source.
  • Series-produced vehicle body skin parts may be preheated during the reworking to barely below a material-specific “softening temperature” and/or may be heated by means of a heated forming mandrel or a point-type additional heating at the intervention point locally to a suitable “forming temperature”.
  • the workpiece Before the reworking, the workpiece may also be pretreated by other methods. It can, for example, be irradiated, coated, etched, hardened, roughened, smoothed, polished, sprayed with a lubricating liquid or ground. It can also be pretreated by sand-blasting before the reworking.
  • the reworking of the series-produced vehicle skin body part preferably takes place in a fully automatically controlled manner.
  • the forming mandrel may either be constructed as a working tool of a CNC machine tool, similar to U.S. Pat. No. 6,216,608 B1, or may be arranged on an arm of a correspondingly programmed working robot.
  • a “working station” may also have additional “tools”, such as a laser cutting device, by means of which the body skin part may additionally be trimmed.
  • FIG. 1 is a view of a vehicle body skin part having a form elevation, which was produced by a reworking according to the invention
  • FIGS. 2, 3 are sectional views of the vehicle body skin part of FIG. 1 ;
  • FIG. 4 is a view of the basic principle of the reworking of a series-produced vehicle body skin part according to the invention.
  • FIG. 5 is a view of the basic principle of the reworking according to the invention when using a die-type counterholder
  • FIGS. 6 to 8 are various cross-sectional views of a form elevation impressed additionally into a prefabricated component
  • FIGS. 9 to 11 are views of embodiments in which the component to be reworked is supported by counterholders
  • FIG. 12 is a schematic representation of a possible movement of the forming tool
  • FIG. 13 is a view of an embodiment in which a front opening hood is reworked.
  • FIG. 14 is a view of a die-type counterholder.
  • FIG. 1 illustrates a series-produced vehicle body skin part 1 .
  • the series-produced body skin part 1 of FIG. 1 is an “outer door skin”.
  • a form elevation 2 was “additionally” formed into the series-produced vehicle skin sheet metal part 1 , which will be explained in detail in connection with the following figures.
  • FIG. 2 is a sectional view of the skin part 1 of FIG. 1 along the intersection line A-A.
  • the form elevation 2 has a length l and a depth t.
  • the depth t of the form elevation 2 has its maximum in the area of the z-axis of FIG. 2 and decreases toward the ends of the form elevation 2 .
  • FIG. 3 is a cross-sectional view of the vehicle body skin part 1 along the intersection line B-B of FIG. 1 . It is shown that the form elevation 2 is relatively sharp-edged. Very accentuated characteristic lines of this type are difficult to produce or cannot be produced at all by use of conventional deep-drawing methods.
  • FIG. 4 schematically describes the reworking operation of the series-produced vehicle body skin part 1 .
  • the series-produced body skin part 1 is clamped into a holding device 3 (not shown in detail) or is fixed on a holding device 3 .
  • the series-produced vehicle body skin part 1 is fixed on the holding device 3 only in its edge areas.
  • a forming mandrel 4 is guided onto the series-produced skin part 1 and is pressed with a defined contact pressure force against the series-produced body skin part 1 .
  • the forming mandrel 4 is moved relative to the series-produced vehicle body skin part 1 in the direction of the arrow 5 .
  • an “application movement” of the forming mandrel 4 relative to the series-produced vehicle body skin part 1 takes place, whereby the form elevation 2 is impressed into the series-produced body skin part 1 by way of the tip 6 of the forming mandrel 4 .
  • FIG. 5 shows an embodiment in which a counterpressure is applied by means of a die-type counterholder 7 from the side of the series-produced vehicle body skin part 1 situated opposite the forming mandrel 4 .
  • the series-produced body skin part 1 is supported by the die-type counterholder 7 , which permits the production of a sharp-edged contour, as illustrated in FIG. 5 , without any problem.
  • the die-type counterholder may be a component-specific tool or a “universal tool”, which may also be used for the individualization of other series-produced body skin components.
  • FIGS. 6 to 8 are different cross-sectional views A-A, B-B and C-C, respectively, of a form elevation 2 additionally impressed into a series-produced skin part 1 .
  • FIG. 6 b is a cross-sectional view along the intersection line A-A.
  • FIGS. 6 a, 6 b illustrate an embodiment in which a very accentuated form elevation 2 was additionally impressed in the series-produced skin part 1 , the “tip” of the form elevation 2 being slightly rounded.
  • FIG. 7 b is the cross-sectional view B-B. In this area, the form elevation 2 is less accentuated. In comparison to FIG. 6 b, the “tip” of the form elevation 2 has a greater radius of curvature.
  • FIG. 8 b is the cross-sectional view C-C. In this area, the form elevation 2 is again more accentuated. Similarly to FIG. 6 b, the “tip” of the form elevation 2 has a relatively small radius of curvature.
  • FIG. 9 illustrates an embodiment in which, during the reworking, the series-produced skin part 1 is supported by two essentially equally wide counterholders 8 , 9 from the side situated opposite the forming mandrel 4 .
  • Reference number 1 ′ indicates the contour of the series-produced skin part before the reworking.
  • the “tip” of the forming mandrel 4 is more accentuated than in the case of the forming mandrel 4 illustrated in FIG. 10 .
  • the counterholder 8 is arranged at a distance L 1 from the “center” of the form elevation to be produced or from the tip of the forming mandrel 4 ; the counterholder 9 is arranged at a distance L 2 .
  • the counterholders 8 , 9 therefore have a spacing L 3 which is equal to the sum of the spacings L 1 and L 2 .
  • L 1 is smaller than L 2 .
  • the supporting therefore takes place asymmetrically with respect to the position of the tip of the forming mandrel 4 .
  • FIG. 10 shows an embodiment in which the counterholder 8 is wider than the counterholder 9 .
  • the supporting with respect to the tip of the forming mandrel 4 takes place only slightly asymmetrically.
  • L 1 is only slightly larger than L 2 .
  • the tip of the forming mandrel 4 is more blunt here, which results in a correspondingly less accentuated form elevation.
  • FIG. 11 shows an embodiment in which the counterholders 8 , 9 are arranged at a relatively small mutual distance L 3 . This permits relatively large degrees of deformation and, as illustrated in the drawing, the production of a relatively strongly accentuated form elevation.
  • FIG. 12 shows the moving path of the forming mandrel on the example of a series-produced vehicle skin part 1 , such as an engine hood, into which two characteristic lines 2 a, 2 b are impressed.
  • the forming tool (not shown) is first lowered onto the series-produced body skin part 1 . Pressed against the series-produced body skin part 1 while a suitable contact pressure force is applied, the forming tool is then moved along the characteristic line 2 a to be produced. After the production of the characteristic line 2 a, the forming tool is lifted and reaches the point 11 in space. From there, the forming tool is moved to point 12 in space. Subsequently, it is again lowered to the series-produced body skin part 1 and is moved along the characteristic line 2 b to be produced. After the production of the characteristic line 2 b, the forming tool is lifted and reaches point 13 in space.
  • FIG. 13 shows the “engine hood” 1 of FIG. 12 after the production of the characteristic lines 2 a and 2 b.
  • a center elevation 2 c was impressed into the engine hood metal sheet, which elevation 2 c protrudes upward out of the engine hood, similar to the illustration in FIGS. 6 to 8 .
  • FIG. 14 shows a die 14 which can be used for producing a form elevation, such as the form elevation 2 c of FIG. 13 .
  • the die 14 is pressed against the series-produced body skin part (not shown here), specifically from the side situated opposite the forming tool 4 .
  • the die 14 is provided for the partial supporting of the forces exercised by the forming tool 4 upon the series-produced body skin part.
  • the die 14 may be U-shaped; that is, open on one side. As an alternative, it may also be closed which is comparable to a plate with an oblong hole.
  • the invention is not limited to a certain die form but covers all die forms.
  • the inner edge of the die 14 is flattened diagonally toward the interior in the “inlet area” of the forming tool 4 .
  • the inner edge is essentially perpendicular to the supporting surfaces 17 , 18 of the die 14 , which supporting surfaces 17 , 18 press “from the rear” against the series-produced body skin part during the reworking operation and in the process support the forces exercised by the forming tool.
  • the moving path 19 of the forming tool should also be mentioned, which extends essentially in the center with respect to the two legs of the die 14 .
US11/287,203 2003-05-28 2005-11-28 Method of producing individualized vehicle parts, particularly individualized vehicle body skin parts consisting of series-produced vehicle body skin parts, as well as vehicle body skin parts manufactured by this method Abandoned US20060090530A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10324244.9 2003-05-28
DE10324244A DE10324244A1 (de) 2003-05-28 2003-05-28 Verfahren zur Herstellung individualisierter Außenhautblechteile aus in Serienfertigung hergestellten Serienaußenhautblechteilen für Fahrzeuge sowie nach diesem Verfahren hergestellte Außenhautblechteile
PCT/EP2004/001403 WO2004105976A1 (de) 2003-05-28 2004-02-14 Verfahren zur herstellung individualisierter fahrzeugteile, insbesondere individualisierter aussenhautteile aus in serienfertigung hergestellten serienteilen sowie nach diesem verfahren hergestellte aussenhautteile

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/001403 Continuation WO2004105976A1 (de) 2003-05-28 2004-02-14 Verfahren zur herstellung individualisierter fahrzeugteile, insbesondere individualisierter aussenhautteile aus in serienfertigung hergestellten serienteilen sowie nach diesem verfahren hergestellte aussenhautteile

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US20060090530A1 true US20060090530A1 (en) 2006-05-04

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US11/287,203 Abandoned US20060090530A1 (en) 2003-05-28 2005-11-28 Method of producing individualized vehicle parts, particularly individualized vehicle body skin parts consisting of series-produced vehicle body skin parts, as well as vehicle body skin parts manufactured by this method

Country Status (8)

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US (1) US20060090530A1 (de)
EP (1) EP1626824B1 (de)
JP (1) JP2007512960A (de)
KR (1) KR20060014060A (de)
CN (1) CN100382910C (de)
DE (2) DE10324244A1 (de)
ES (1) ES2309499T3 (de)
WO (1) WO2004105976A1 (de)

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US9511415B2 (en) 2012-04-05 2016-12-06 Toyota Jidosha Kabushiki Kaisha Metal plate forming method
US9764436B2 (en) 2014-05-08 2017-09-19 GM Global Technology Operations LLC Production line for machining at least one surface component and method for machining the at least one surface component in the production line
US10010920B2 (en) 2010-07-27 2018-07-03 Ford Global Technologies, Llc Method to improve geometrical accuracy of an incrementally formed workpiece
US20180214927A1 (en) * 2017-01-31 2018-08-02 Ford Motor Company Method for production of sheet metal components
US20220143671A1 (en) * 2019-03-28 2022-05-12 Honda Motor Co., Ltd. Press forming method

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DE102005024378B4 (de) * 2005-05-27 2016-02-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zur inkrementellen Umformung von dünnwandigen Werkstücken sowie Vorrichtung
DE102005048220C5 (de) * 2005-09-29 2018-01-18 Magna Exteriors (Germany) Gmbh Verfahren zur Herstellung einer Verkleidungsteilvariante für ein Kraftfahrzeug und Verkleidungsteil
DE102006016460A1 (de) * 2006-04-07 2007-10-11 Bayerische Motoren Werke Ag Bearbeitungsvorrichtung und Bearbeitungsverfahren zur Bearbeitung flächiger Teile
DE102007009705B3 (de) * 2007-02-28 2007-10-31 Audi Ag Bearbeitungsvorrichtung sowie Verfahren zur Herstellung und Bearbeitung von Formteilen unterschiedlicher dreidimensionaler Struktur
DE102008004051A1 (de) 2008-01-11 2009-07-16 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Umformen eines Blechteils und Vorrichtung zur Durchführung des Verfahrens
DE102008016999A1 (de) * 2008-04-03 2009-10-08 Bayerische Motoren Werke Aktiengesellschaft Werkzeug zur Nachformung eines bereits tiefgezogenen Blechbauteils
CN102000722A (zh) * 2009-08-31 2011-04-06 扬州恒德模具有限公司 一种数控转塔冲床旋转工位用滚筋上模
JP6072433B2 (ja) * 2012-05-23 2017-02-01 株式会社アミノ 遂次成形方法及び装置
DE102014219021A1 (de) * 2014-09-22 2016-03-24 Volkswagen Aktiengesellschaft Presswerkzeug
DE102014221878A1 (de) 2014-10-28 2016-04-28 Bayerische Motoren Werke Aktiengesellschaft Pressenwerkzeug zum Herstellen eines wenigstens eine scharfkantige Blechformteilkante aufweisenden Blechformteils und hiermit hergestelltes Blechformteil
WO2019007555A1 (en) * 2017-07-06 2019-01-10 Bobst Mex Sa METHOD OF SHEET FOLDING
CN111114649B (zh) * 2019-11-28 2023-10-20 无锡曙光模具有限公司 一种汽车发动机机仓覆盖壳体件及其加工工艺

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DE502004007843D1 (de) 2008-09-25
EP1626824A1 (de) 2006-02-22
CN1795066A (zh) 2006-06-28
WO2004105976A1 (de) 2004-12-09
JP2007512960A (ja) 2007-05-24
DE10324244A1 (de) 2004-12-30
CN100382910C (zh) 2008-04-23
KR20060014060A (ko) 2006-02-14
EP1626824B1 (de) 2008-08-13

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