DE3831363A1 - METHOD FOR BENDING SANDWICH PLATES - Google Patents

METHOD FOR BENDING SANDWICH PLATES

Info

Publication number
DE3831363A1
DE3831363A1 DE3831363A DE3831363A DE3831363A1 DE 3831363 A1 DE3831363 A1 DE 3831363A1 DE 3831363 A DE3831363 A DE 3831363A DE 3831363 A DE3831363 A DE 3831363A DE 3831363 A1 DE3831363 A1 DE 3831363A1
Authority
DE
Germany
Prior art keywords
bending
metal sheet
sandwich
plastic layer
sandwich plate
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.)
Withdrawn
Application number
DE3831363A
Other languages
German (de)
Inventor
Karl Grosch
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.)
Erbsloeh Aluminium GmbH
Original Assignee
Julius and August Erbsloeh GmbH and Co
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 Julius and August Erbsloeh GmbH and Co filed Critical Julius and August Erbsloeh GmbH and Co
Priority to DE3831363A priority Critical patent/DE3831363A1/en
Priority to ES8903105A priority patent/ES2016061A6/en
Priority to GB8920727A priority patent/GB2222791A/en
Priority to IT8921696A priority patent/IT1231695B/en
Priority to FR8912059A priority patent/FR2636255A1/en
Publication of DE3831363A1 publication Critical patent/DE3831363A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B21D11/20—Bending sheet metal, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/02—Bending or folding
    • B29C53/04—Bending or folding of plates or sheets
    • B29C53/06—Forming folding lines by pressing or scoring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/046—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0053—Moulding articles characterised by the shape of the surface, e.g. ribs, high polish
    • B29C37/0057—Moulding single grooves or ribs, e.g. tear lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

A plate formed, more especially, from two metal sheets, which are spaced apart from each other and are interconnected by a means of a layer of plastics material, has one or more bending grooves introduced into the plate on its inner surface with respect to the bending, and the outer surface of the sandwich plate is bent round said groove(s), wherein the or each bending groove (13) is formed by stamping the inner metal sheet (10) and, during the subsequent bending operation, such groove is shaped to form a fold which penetrates the layer of plastics material (12). A 90 DEG bend may be made around a single groove (13). <IMAGE>

Description

Die Erfindung betrifft ein Verfahren zum Biegen von Sandwichplatten aus insbesondere zwei im Abstand zueinander angeordneten, durch eine Kunststoffschicht miteinander verbundenen Metallblechen, wobei in die Sandwichplatte an ihrer in Bezug auf die Biegung inneren Seite eine Biegerinne eingetieft ist, um welche die Außenseite der Sandwichplatte herumgebogen ist.The invention relates to a method for bending Sandwich panels made in particular of two spaced apart arranged by a plastic layer with each other connected metal sheets, being in the sandwich panel a bending groove on the inner side with respect to the bend is recessed around which the outside of the sandwich panel is bent around.

Zum Biegen von Sandwichplatten ist es bekannt, in deren innere Seite eine V-förmige Biegerinne einzufräsen, so daß das innere Metallblech an der Biegestelle vollständig unter­ brochen ist und zumindest auch ein Teil der Kunststoff­ schicht entfernt wurde. Außerdem sind die Flanken der Biegerinne unter einem solchen Winkel zueinander anzuordnen, daß der sich dazu zu 180° ergänzende Winkel dem zwischen den abgebogenen Schenkeln der Platte gewünschten Winkel entspricht.For bending sandwich panels, it is known in their to mill a V-shaped bend inside, so that the inner metal sheet at the bending point completely under broken and at least part of the plastic layer was removed. In addition, the flanks of the To arrange the bending channel at such an angle to one another, that the complementary to 180 ° the angle between the bent legs of the plate desired angle corresponds.

Aufgabe der vorliegenden Erfindung ist es, ein Verfahren zum Biegen von Sandwichplatten zu schaffen, ohne daß das innere Metallblech im Bereich der Biegestelle stabilitäts­ vermindernd aufgetrennt wird und gleichwohl eine definierte Biegezone festgelegt ist. The object of the present invention is a method to bend sandwich panels without that inner metal sheet in the area of the bending point stability reducing is separated and still a defined Bending zone is set.  

Diese Aufgabe ist erfindungsgemäß dadurch gelöst, daß die Biegerinne durch Einprägen des inneren Metallblechs gebildet ist, die beim nachfolgenden Biegevorgang zu einer in die Kunststoffschicht eindringenden Falte verformt ist. Es läßt sich damit die Biegestelle eindeutig festlegen, ohne daß das innere Metallblech aufgetrennt wird. Durch die Vorprägung des inneren Metallbleches der Sandwichplatte kommt es beim anschließenden Biegevorgang an der Biegestelle zur Bildung einer Falte am inneren Metallblech, die sich in den Bereich des durch die Kunststoffschicht überbrückten Zwischenraumes zwischen den Metallblechen erstreckt. Damit ist einerseits der Werkstoffzusammenhalt des inneren Metallblechs der Sandwichplatte gegeben und andererseits bleibt der innere Eckbereich von nach innen vorspringenden Wandteilen frei.This object is achieved in that the Bending groove formed by stamping the inner metal sheet is that in the subsequent bending process into one in the Plastic layer penetrating fold is deformed. It the bending point can thus be clearly defined without that the inner metal sheet is cut. Through the Knockout of the inner metal sheet of the sandwich panel it occurs during the subsequent bending process at the bending point to form a fold on the inner metal sheet, which itself in the area bridged by the plastic layer Gap extends between the metal sheets. In order to is the material cohesion of the inside Given metal sheet of the sandwich panel and on the other hand the inner corner area remains protruding from the inside Wall parts free.

Es versteht sich, daß die durch die Biegestelle gebildeten Schenkel der Sandwichplatte in einem stumpfen Winkel zuein­ ander stehen können, wenn der Biegevorgang nach Erreichen des gewünschten stumpfen Winkels abgebrochen wird. Es ist jedoch auch möglich, den Biegevorgang solange fortzusetzen, bis die durch die Biegestelle erzeugten Schenkel der Sand­ wichplatte einen rechten Winkel zueinander einnehmen.It is understood that those formed by the bending point Legs of the sandwich plate at an obtuse angle may be different if the bending process after reaching the desired obtuse angle is canceled. It is however, it is also possible to continue the bending process as long as until the legs created by the bending point are the sand wichplatte make a right angle to each other.

Es ist jedoch auch möglich, auf der Außenseite der Sand­ wichplatte an der Biegestelle statt des sich bei einer 90°-Abwinklung ergebenden kleinen Krümmungsradius auf der Außenseite der Biegestelle, einen quasi großen Krümmungs­ radius zu erzeugen, indem vorzugsweise in geringem Abstand mehrere Biegerinnen nebeneinander in das innere Metallblech eingedrückt werden, so daß sich beim nachfolgenden Biege­ vorgang am äußeren Metallblech ein Biegebereich mit einem quasi großen Krümmungsradius einstellt. However, it is also possible on the outside of the sand wichplatte at the bending point instead of at one 90 ° angle resulting in a small radius of curvature on the Outside of the bending point, a quasi large curvature to generate radius by preferably at a short distance several benders side by side in the inner metal sheet be pressed in so that during the subsequent bending a bending area with a sets a quasi large radius of curvature.  

Eine Begünstigung des Biegevorganges ergibt sich vorteil­ haft dadurch, daß das Metallblech der Außenseite der Sandwichplatte dicker ist als das Metallblech der Innen­ seite der Sandwichplatte. Dabei mag die Kunststoffschicht zwischen den Metallblechen vorteilhaft aus einem aus­ härtenden Schaumstoff gebildet sein.Favoring the bending process is advantageous adheres in that the metal sheet on the outside of the Sandwich plate is thicker than the metal sheet on the inside side of the sandwich panel. Thereby likes the plastic layer between the metal sheets advantageously from one curing foam be formed.

Ein nach dem Verfahren hergestellter Biegebereich der Sandwichplatte ist in zwei Ausführungsbeispielen auf der Zeichnung dargestellt, und wird nachfolgend näher erläutert.A bending area of the Sandwich plate is in two embodiments on the Drawing shown, and is explained in more detail below.

Es zeigen:Show it:

Fig. 1 den Querschnitt einer ungebogenen Sandwichplatte, Fig. 1 shows the cross-section of an unbent sandwich panel,

Fig. 2 den aus Fig. 1 ersichtlichen Sandwichplatten­ querschnitt an dessen innerem Metallblech eine Biegerinne eingedrückt worden ist, FIG. 2 is seen from FIG. 1 sandwich panels cross section at its inner metal sheet has a bending chute has been pressed,

Fig. 3 den aus Fig. 2 ersichtlichen Querschnitt der Sandwichplatte, bei der eine 90°-Biegestelle mit einem geringen Biegeradius am äußeren Metallblech erzeugt wurde, Fig. 3 to be seen from FIG. 2, cross-section of the sandwich panel, in which a 90 ° -Biegestelle was generated with a small bending radius at the outer metal sheet,

Fig. 4 ein weiteres Ausführungsbeispiel der Biege­ stelle einer Sandwichplatte, bei der durch Einbringen mehrerer Biegerinnen am inneren Metallblech am äußeren Metallblech der Sand­ wichplatte an der Biegestelle ein quasi großer Biegeradius erzeugt worden ist. Fig. 4 shows another embodiment of the bending point of a sandwich plate in which a quasi-large bending radius has been generated by introducing several benders on the inner metal sheet on the outer metal sheet of the sand wichplatte at the bending point.

Die Sandwichplatte besteht aus zwei im Abstand zueinander angeordneten Metallblechen 10 und 11, die im Abstand zueinander angeordnet sind, wobei dieser Abstand durch eine Kunststoffschicht 12 überbrückt ist, durch die auch das innere Metallblech 10 und das äußere Metallblech 11 miteinander verbunden sind. Bei der Kunststoffschicht 12 mag es sich vorteilhaft um einen aushärtenden aufschäum­ baren Kunststoff, wie beispielsweise Polyurethanschaum handeln.The sandwich plate consists of two metal sheets 10 and 11 arranged at a distance from one another, which are arranged at a distance from one another, this distance being bridged by a plastic layer 12 by means of which the inner metal sheet 10 and the outer metal sheet 11 are also connected to one another. The plastic layer 12 may advantageously be a curing foamable plastic, such as polyurethane foam.

Um die aus den Metallblechen 10 und 11 und der Kunststoff­ schicht 12 gebildete Sandwichplatte biegen zu können, wird zunächst am inneren Metallblech 10 an der gewünschten Stelle eine Biegerinne 13, in beispielsweise einem Prägevor­ gang, angebracht (Fig. 2), um welche schließlich die Sand­ wichplatte gebogen wird, bis die durch die Biegestelle erzeugten Schenkel 14, 15 - wie aus Fig. 3 ersichtlich - einen rechten Winkel zueinander einnehmen. Es ist allerdings auch möglich, die Schenkel 14 und 15 in einem stumpfen Winkel zueinander anzuordnen, indem der Biegevorgang vor Erreichen der 90°-Stellung der Schenkel beendet wird. Beim Biegevorgang entsteht am inneren Metallblech 10 an der Biegestelle eine Falte 16, die in die Kunststoffschicht 16 nach dem Biegevorgang eingebettet ist.In order to be able to bend the sandwich plate formed from the metal sheets 10 and 11 and the plastic layer 12 , a bending groove 13 , for example in an embossing process, is first attached to the inner metal sheet 10 at the desired location ( FIG. 2), around which the Sand wichplatte is bent until the legs 14 , 15 generated by the bending point - as shown in Fig. 3 - take a right angle to each other. However, it is also possible to arrange the legs 14 and 15 at an obtuse angle to one another by ending the bending process before the legs have reached the 90 ° position. During the bending process, a fold 16 is formed on the inner metal sheet 10 at the bending point, which fold is embedded in the plastic layer 16 after the bending process.

Bei dem aus Fig. 4 ersichtlichen Ausführungsbeispiel sind auf der Innenseite der Sandwichplatte in das innere Metall­ blech 10 mehrere in geringem Abstand nebeneinander angeordnete Biegerinnen 13 in einem ersten Arbeitsvorgang eingedrückt. Beim nachfolgenden Biegevorgang entsteht am äußeren Metall­ blech 11 ein relativ großer Biegeradius zwischen den durch die Biegestelle entstandenen Schenkeln 14 und 15 der Sand­ wichplatte. Bei dem aus Fig. 4 ersichtlichen Ausführungs­ beispiel handelt es sich um insgesamt fünf nebeneinander in geringem Abstand zueinander angeordnete Biegerinnen 13. In the embodiment shown in FIG. 4, a plurality of benders 13, which are arranged next to one another at a short distance, are pressed into the inner metal sheet 10 in a first operation. In the subsequent bending process on the outer metal sheet 11 there is a relatively large bending radius between the legs 14 and 15 of the sand wichplatte created by the bending point. In the embodiment shown in FIG. 4, there are a total of five benders 13 arranged next to one another at a short distance from one another.

Es ist möglich, noch mehr Biegerinnen nebeneinander anzu­ ordnen, so daß an der Biegestelle ein noch größerer als aus Fig. 4 ersichtlicher Biegeradius entsteht.It is possible to arrange even more benders next to one another, so that an even larger bending radius than that shown in FIG. 4 is produced at the bending point.

Wie bereits erwähnt, geben die dargestellten und vorbe­ schriebenen Ausführungen die Erfindung lediglich beispiels­ weise wieder, die keinesfalls allein darauf beschränkt ist. Es sind vielmehr noch mancherlei Änderungen und andere Ausgestaltungen der Erfindung denkbar. As already mentioned, the presented and given Written versions of the invention, for example only wise again, which is by no means limited to this. Rather, there are some changes and others Embodiments of the invention are conceivable.  

Bezugszeichenliste:Reference symbol list:

10 Metallblech, inneres
11 Metallblech, äußeres
12 Kunststoffschicht
13 Biegerinne
14 Schenkel
15 Schenkel
16 Falte 10 sheet metal, inner
11 sheet metal, outer
12 plastic layer
13 bending channel
14 legs
15 legs
16 fold

Claims (6)

1. Verfahren zum Biegen von Sandwichplatten aus insbesondere zwei im Abstand zueinander angeordneten, durch eine Kunststoffschicht miteinander verbundenen Metallblechen, wobei in die Sandwichplatte an ihrer in Bezug auf die Biegung inneren Seite eine Biegerinne eingetieft ist, um welche die Außenseite der Sandwichplatte herumge­ bogen ist, dadurch gekennzeichnet, daß die Biegerinne (13) durch Einprägen des inneren Metallblechs (10) gebildet ist, die beim nachfolgenden Biegevorgang zu einer in die Kunststoffschicht (12) eindringenden Falte (16) verformt ist.1. A method for bending sandwich panels made in particular of two metal sheets arranged at a distance from one another and connected to one another by a plastic layer, a bending groove being recessed in the sandwich panel on its inner side with respect to the bend, around which the outside of the sandwich panel is bent, characterized in that the bending groove ( 13 ) is formed by stamping the inner metal sheet ( 10 ), which is deformed into a fold ( 16 ) penetrating into the plastic layer ( 12 ) during the subsequent bending process. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß in geringem Abstand mehrere Biegerinnen (13) nebeneinander in das innere Metallblech (10) eingedrückt sind und beim nachfolgenden Biegevorgang ein Biege­ bereich mit großem Krümmungsradius erzeugt ist.2. The method according to claim 1, characterized in that a plurality of benders ( 13 ) are pressed side by side into the inner metal sheet ( 10 ) and in the subsequent bending process a bending area with a large radius of curvature is generated. 3. Sandwichplatte nach Anspruch 1 und/oder 2, dadurch gekennzeichnet, daß das Metallblech (11) der Außenseite der Sandwichplatte dicker ist als das Metallblech (10) der Innenseite der Sandwichplatte.3. Sandwich plate according to claim 1 and / or 2, characterized in that the metal sheet ( 11 ) on the outside of the sandwich plate is thicker than the metal sheet ( 10 ) on the inside of the sandwich plate. 4. Sandwichplatte nach einem oder mehreren der vorher­ gehenden Ansprüche, dadurch gekennzeichnet, daß die Kunststoffschicht (12) zwischen den Metallblechen (10, 11) aus einem aushärtenden Schaumstoff gebildet ist.4. Sandwich plate according to one or more of the preceding claims, characterized in that the plastic layer ( 12 ) between the metal sheets ( 10 , 11 ) is formed from a curing foam. 5. Sandwichplatte nach einem oder mehreren der vorher­ gehenden Ansprüche, dadurch gekennzeichnet, daß der von den Plattenwänden (14, 15) eingeschlossene Biege­ winkel größer als 90° nach dem Biegevorgang ist.5. Sandwich plate according to one or more of the preceding claims, characterized in that the included by the plate walls ( 14 , 15 ) bending angle is greater than 90 ° after the bending process. 6. Sandwichplatte nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der von den Plattenwänden (14, 15) eingeschlossene Biegewinkel 90° nach dem Biegevorgang ist.6. Sandwich plate according to one or more of claims 1 to 4, characterized in that the bending angle enclosed by the plate walls ( 14 , 15 ) is 90 ° after the bending process.
DE3831363A 1988-09-15 1988-09-15 METHOD FOR BENDING SANDWICH PLATES Withdrawn DE3831363A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE3831363A DE3831363A1 (en) 1988-09-15 1988-09-15 METHOD FOR BENDING SANDWICH PLATES
ES8903105A ES2016061A6 (en) 1988-09-15 1989-09-12 A method of bending sandwich plates
GB8920727A GB2222791A (en) 1988-09-15 1989-09-13 A method of bending sandwich plates
IT8921696A IT1231695B (en) 1988-09-15 1989-09-13 PROCEDURE FOR BENDING SANDWICH SHEETS
FR8912059A FR2636255A1 (en) 1988-09-15 1989-09-14 PROCESS FOR FOLDING SANDWICH PLATES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3831363A DE3831363A1 (en) 1988-09-15 1988-09-15 METHOD FOR BENDING SANDWICH PLATES

Publications (1)

Publication Number Publication Date
DE3831363A1 true DE3831363A1 (en) 1990-03-29

Family

ID=6363001

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3831363A Withdrawn DE3831363A1 (en) 1988-09-15 1988-09-15 METHOD FOR BENDING SANDWICH PLATES

Country Status (5)

Country Link
DE (1) DE3831363A1 (en)
ES (1) ES2016061A6 (en)
FR (1) FR2636255A1 (en)
GB (1) GB2222791A (en)
IT (1) IT1231695B (en)

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US5919545A (en) * 1996-07-18 1999-07-06 Alusuisse Technology & Management Ltd. Composite panel
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DE102008023017A1 (en) * 2008-05-09 2009-11-12 Thyssenkrupp Steel Ag A method of forming a Bördelfalzes in a multilayer composite material and multilayer, at least one hem flange exhibiting composite material
DE102016201638A1 (en) * 2016-02-03 2017-08-03 Thyssenkrupp Ag Method for producing a profile from a sandwich material, profile from a sandwich material and its use
DE102016214016A1 (en) 2016-07-29 2018-02-01 Thyssenkrupp Ag Method for producing a component from a sandwich material, its use and a production plant for producing a component from a sandwich material
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FR2739579B1 (en) * 1995-10-04 1997-12-26 Lorraine Laminage METHOD AND DEVICE FOR FOLDING ALONG A GENERATOR OF A METAL BLANK WITH MULTILAYER STRUCTURE AND METAL BLANK WITH MULTILAYER STRUCTURE OBTAINED BY THIS METHOD
NL1002541C2 (en) * 1996-03-06 1997-09-09 Unfolding V O F Method for roughing metal / plastic sandwich material for the production thereof of three-dimensional objects.
FR2760983B1 (en) * 1997-03-18 1999-06-04 Lorraine Laminage PROCESS FOR FOLDING A RIGID-CORE SANDWICH PANEL
ITMI20012190A1 (en) 2001-10-19 2003-04-19 Getters Spa PROCESS FOR THE PRODUCTION OF A FLEXIBLE THERMAL INSULATION DEVICE AND DEVICE SO OBTAINED
DE10234409B4 (en) * 2002-07-29 2012-03-22 Va-Q-Tec Ag Vacuum insulation panel with indentations on the edges
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US9873237B2 (en) 2008-05-09 2018-01-23 Thyssenkrupp Steel Europe Ag Method for forming a crimping fold in a multi-layer composite material and multi-layer composite material having at least one crimping fold
DE102016201638A1 (en) * 2016-02-03 2017-08-03 Thyssenkrupp Ag Method for producing a profile from a sandwich material, profile from a sandwich material and its use
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IT8921696A0 (en) 1989-09-13
GB2222791A (en) 1990-03-21
ES2016061A6 (en) 1990-10-01
FR2636255A1 (en) 1990-03-16
GB8920727D0 (en) 1989-10-25
IT1231695B (en) 1991-12-20

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