DE3634596A1 - Process and apparatus for using a composite technique to produce body parts - Google Patents

Process and apparatus for using a composite technique to produce body parts

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Publication number
DE3634596A1
DE3634596A1 DE19863634596 DE3634596A DE3634596A1 DE 3634596 A1 DE3634596 A1 DE 3634596A1 DE 19863634596 DE19863634596 DE 19863634596 DE 3634596 A DE3634596 A DE 3634596A DE 3634596 A1 DE3634596 A1 DE 3634596A1
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DE
Germany
Prior art keywords
sheet
edges
plastic
stamp
metal sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
DE19863634596
Other languages
German (de)
Other versions
DE3634596C2 (en
Inventor
Norbert Faber
Egbert Rossie
Josef Dipl Ing Heiss
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.)
Audi AG
Original Assignee
Audi AG
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 Audi AG filed Critical Audi AG
Priority to DE19863634596 priority Critical patent/DE3634596A1/en
Publication of DE3634596A1 publication Critical patent/DE3634596A1/en
Application granted granted Critical
Publication of DE3634596C2 publication Critical patent/DE3634596C2/de
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
    • B29C70/088—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers and with one or more layers of non-plastics material or non-specified material, e.g. supports
    • 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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/02—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/0038—Moulds or cores; Details thereof or accessories therefor with sealing means or the like
    • B29C33/0044—Moulds or cores; Details thereof or accessories therefor with sealing means or the like for sealing off parts of inserts projecting into the mould cavity
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
    • B29C45/14196—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure the inserts being positioned around an edge of the injected part
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/78—Moulding material on one side only of the preformed part
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
    • B29C45/14196—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure the inserts being positioned around an edge of the injected part
    • B29C2045/14204—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure the inserts being positioned around an edge of the injected part the edges formed by an intermediate mould part
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C2045/1486—Details, accessories and auxiliary operations
    • B29C2045/14934—Preventing penetration of injected material between insert and adjacent mould wall
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C2045/1486—Details, accessories and auxiliary operations
    • B29C2045/1495—Coating undercut inserts
    • 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
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • 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
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3055—Cars

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Laminated Bodies (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

The present invention relates to a process for producing body parts which comprise a thin outer metal sheet which is back-filled with a plastic, for example sheet moulding compound (SMC), and an apparatus for carrying out this process. To prevent moulding compound from inadvertently getting onto the outer surface of the metal sheet, to be coated in a later operation, it is provided within the scope of the present invention that, in a first operation, the edges of the metal sheet to be processed are in each case bent around inwards through 135@ by a width of about 7 mm, that subsequently, after placing the relevant metal sheet into a composite mould, a further bending back of these edges is carried out to form an edge of a U-shaped cross-section and that, finally, liquid moulding compound is introduced into this composite mould and provides the backfilling of the outer metal sheet.

Description

Die vorliegende Erfindung bezieht sich auf ein Verfahren zur Herstellung von Karosserieteilen, welche aus einem dünnen äußeren Blech bestehen, das mit einem Kunststoff, beispielsweise SMC-Kunststoff, hinterfüttert ist, sowie auf ein Verbundwerkzeug zur Durchführung dieses Verfahrens.The present invention relates to a Process for the production of body parts, which consist of a thin outer sheet, that with a plastic, for example SMC plastic, is backfilled, as well as a composite tool for Performing this procedure.

Im Automobilbau besteht zunehmend die Tendenz, Kunst­ stoffe anstelle von Metallen einzusetzen. Kunststoffe haben dabei die Eigenschaft, daß sie im Vergleich zu Metall relativ leicht sind und eine hohe Korrisions­ festigkeit besitzen.In the automotive industry there is an increasing tendency to art use substances instead of metals. Plastics have the property that they are compared to Metal are relatively light and have a high level of corrosion possess strength.

Diesem Trend, zunehmend Kunststoffe einzusetzen, wird auch im Karosseriebau Rechnung getragen. Es ist dem­ zufolge bereits ein Verfahren bekannt (siehe DE-OS 34 28 128), mit welchem Karosserieteile in Verbund­ technik hergestellt werden können, die ein dünnes äußeres Blech von etwa 0,3 mm Dicke besitzen, das mit einem Kunststoff, beispielsweise SMC-Kunststoff, hinter­ füttert ist.This trend to increasingly use plastics will also taken into account in body construction. It is that according to a method already known (see DE-OS 34 28 128), with which body parts in combination technology can be manufactured using a thin have outer sheet of about 0.3 mm thickness, which with a plastic, for example SMC plastic, behind is feeding.

Eine gewisse Schwierigkeit bei der Herstellung derartiger Karosserieteile in Verbundtechnik besteht darin, daß verhindert werden muß, daß Kunststoff auf die in einem folgenden Arbeitsgang zu lackierende Außenfläche des jeweiligen Bleches gelangt, weil eine evtl. erforder­ liche Beseitigung des übergepreßten Kunststoffes nur mit erheblichem Arbeitsaufwand durchführbar ist, während gleichzeitig dabei eine Verletzung der an sich relativ empfindlichen Korrisionsschutzschicht zustande kommt.A certain difficulty in producing such Body parts in composite technology is that must be prevented that plastic on the in one following operation to paint the outer surface of the the respective sheet arrives because it may be necessary Liche removal of the over-pressed plastic only with significant workload is feasible while at the same time a violation of the relative relative sensitive anti-corrosion layer.

Es ist demzufolge Aufgabe der vorliegenden Erfindung, ein Verfahren zu schaffen, welches bei der Herstellung von Karosserieteilen in Verbundtechnik ein Vordringen des zur Hinterfütterung des dünnen äußeren Bleches verwendeten Kunststoffes auf die später zu lackierende Außenseite des Bleches verhindert.It is therefore an object of the present invention to create a process that is used in manufacturing advance of body parts in composite technology for the backing of the thin outer sheet used plastic to be painted later Prevents the outside of the sheet.

Erfindungsgemäß wird dies dadurch erreicht, daß in einem ersten Arbeitsgang die Ränder des zu verarbeitenden Bleches jeweils um mehr als 90° nach innen umgebogen werden, daß in der Folge nach dem Einlegen des betreffenden Bleches in ein Verbundwerkzeug ein weiteres Zurückbiegen dieser Ränder unter Bildung eines Randes mit U-förmigem Querschnitt erfolgt und daß schließlich in dieses Verbundwerkzeug flüssige Kunststoffmasse eingeleitet wird, welche die Hinter­ fütterung des äußeren Bleches ergibt.According to the invention this is achieved in that a first step the edges of the to be processed Sheets each by more than 90 ° be bent inwards that in the aftermath Insert the relevant sheet in a compound tool another bending back of these edges forming of an edge with a U-shaped cross section and that finally liquid into this composite tool Plastic mass is introduced, which is the rear feeding of the outer sheet results.

Ein Verbundwerkzeug zur Durchführung des erfindungsge­ mäßen Verfahrens ist hingegen dadurch gekennzeichnet, daß in eine ringförmige Aussparung des Stempels ein entlang des Umfangs des herzustellenden Karosserieteils verlaufender gefederter Rahmen eingesetzt ist, welcher beim Aufdrücken des Stempels auf die Matrize die nach oben umgebogenen Ränder des zu verarbeitenden Bleches weiter nach innen biegt und damit bei der folgenden Hinterfütterung mit Kunststoff nach außen hin abdichtet und gleichzeitig die betreffenden Ränder vor uner­ wünschtem Kunststoffauftrag schützt.A composite tool for performing the fiction However, the method is characterized in that that in an annular recess of the stamp along the circumference of the body part to be manufactured running sprung frame is used, which when pressing the stamp onto the die Bent edges of the sheet to be processed bends further inwards and thus with the following Back lining with plastic seals to the outside and at the same time the relevant edges before un protects the desired plastic application.

Die Erfindung soll nunmehr anhand eines Ausführungs­ beispiels näher erläutert und beschrieben werden, wobei auf die beigefügte Zeichnung Bezug genommen ist. Es zeigen:The invention will now be based on an embodiment example are explained and described in more detail, with on the attached drawing is referenced. Show it:

Fig. 1 eine schematische Teilansicht eines im Rahmen der vorliegenden Erfindung verwendbaren Verbund­ werkzeuges im abgehobenen Zustand des vorgese­ henen Stempels; und Figure 1 is a schematic partial view of a composite tool that can be used in the context of the present invention in the raised state of the stamp provided. and

Fig. 2 eine schematische Teilansicht des Verbundwerk­ zeuges von Fig. 1, bei welchem der vorgesehene Stempel auf die Matrize abgesenkt worden ist. Fig. 2 is a schematic partial view of the composite tool of Fig. 1, in which the punch provided has been lowered onto the die.

Die Fig. 1 und 2 zeigen ein Verbundwerkzeug, welches im Rahmen der vorliegenden Erfindung zur Herstellung von Karosserieteilen in Verbundtechnik verwendet werden kann. Dieses Verbundwerkzeug besitzt dabei eine Matrize 1, deren obere Fläche gemäß dem herzustellenden Karos­ serieteil entsprechend ausgebildet ist. Oberhalb dieser Matrize 1 ist ein entsprechender Stempel 2 vorgesehen, welcher mit einer ringförmigen Aussparung 3 versehen ist, in die ein Rahmen 4 eingesetzt ist. Dieser Rahmen 4 ist dabei gegenüber dem Stempel 2 innerhalb der ring­ förmigen Aussparung 3 verschiebbar, wobei zwischen dem Rahmen 4 und dem Stempel 2 innerhalb der ringförmigen Aussparung 3 entsprechende Federn 5 vorgesehen sind, welche den Rahmen 4 nach unten drücken. Figs. 1 and 2 show a composite tool which can be used in the present invention for the production of bodywork parts in composite technology. This composite tool has a die 1 , the upper surface of which is designed in accordance with the body part to be manufactured accordingly. A corresponding punch 2 is provided above this die 1 and is provided with an annular recess 3 into which a frame 4 is inserted. This frame 4 is displaceable relative to the stamp 2 within the ring-shaped recess 3 , wherein between the frame 4 and the stamp 2 within the annular recess 3 corresponding springs 5 are provided which press the frame 4 downwards.

Unter Einsatz des beschriebenen Verbundwerkzeugs kann die Herstellung eines Karosserieteils in Verbundtechnik wie folgt durchgeführt werden: In einem ersten Arbeits­ gang werden die äußeren Ränder des zu verarbeitenden dünnen Bleches 6 entlang einer Breite von etwa 7 mm um 135° nach innen gebogen, worauf das betreffende Blech 6 mit seinen nach oben und einwärts gebogenen Rändern 7 in die Matrize 1 des Verbundwerkzeugs 2 eingelegt wird, wie dies in Fig. 1 dargestellt ist.Using the described composite tool, the production of a body part in composite technology can be carried out as follows: In a first step, the outer edges of the thin sheet 6 to be processed are bent inwards by 135 ° along a width of about 7 mm, whereupon the sheet in question 6 is inserted with its edges 7 bent upwards and inwards into the die 1 of the composite tool 2 , as shown in FIG. 1.

In der Folge wird dann der Stempel 2 des Verbundwerkzeugs in Richtung der Matrize 1 abgesenkt, wobei zuerst der von dem Stempel 2 getragene Rahmen 4 in den Eingriff mit den umgebogenen Rändern 7 des Bleches 6 gelangt. Diese Ränder 7 werden dadurch weiter nach innen gebogen, so daß die­ selben eine U-förmige Querschnittskonföderation erhalten. Beim weiteren Absenken des Stempels 2 wird dann der Rahmen 4 gegen die Kraft der Federn 5 weiter in die ringförmige Aussparung 3 des Stempels 2 hineingedrückt, so daß schließlich der Stempel 2 in seine untere End­ position gelangt, in welcher oberhalb des dünnen Bleches 6 ein schmaler Hohlraum verbleibt, in welchen in der Folge flüssige Kunststoffmasse 8 eingepreßt wird, was der Darstellung von Fig. 2 entspricht. Aufgrund der federnden Eigenschaften des nach hinten hin umgebogenen Randes 7 des Bleches 6 in Verbindung mit dem unter dem Einfluß der zusammengedrückten Federn 5 stehenden Rahmens 4 ergibt sich eine zufriedenstellende Abdichtung des zwischen dem Blech 6 und dem Stempel 2 befindlichen Hohlraums zur Seite hin, so daß auf diese Weise ein ungewünschtes Ausdringen auf die in einem späteren Arbeitsgang zu lackierende Außenfläche des Bleches 6 verhindert wird.The punch 2 of the composite tool is then lowered in the direction of the die 1 , the frame 4 carried by the punch 2 first coming into engagement with the bent edges 7 of the sheet 6 . These edges 7 are thereby bent further inwards, so that they receive a U-shaped cross-sectional confederation. When lowering the stamp 2 further, the frame 4 is then pressed further against the force of the springs 5 into the annular recess 3 of the stamp 2 , so that the stamp 2 finally reaches its lower end position, in which a narrow one above the thin sheet 6 Cavity remains, in which liquid plastic compound 8 is subsequently pressed in, which corresponds to the illustration in FIG. 2. Due to the resilient properties of the rearwardly bent edge 7 of the sheet 6 in conjunction with the frame 4 under the influence of the compressed springs 5 , there is a satisfactory sealing of the cavity between the sheet 6 and the stamp 2 to the side, so that in this way, an undesired penetration onto the outer surface of the sheet 6 to be painted in a later operation is prevented.

Claims (2)

1. Verfahren zur Herstellung von Karosserieteilen, welche aus einem dünnen äußeren Blech bestehen, das mit einem Kunststoff, beispielsweise SMC-Kunststoff, hinterfüttert ist, dadurch gekennzeichnet, daß in einem ersten Arbeitsgang die Ränder des zu verarbeitenden Bleches jeweils um mehr als 90° nach innen umgebogen werden, daß in der Folge nach dem Einlegen des betreffenden Bleches in ein Verbundwerkzeug ein weiteres Zurückbiegen dieser Ränder unter Bildung eines Randes mit U-förmigem Querschnitt erfolgt und daß schließlich in dieses Verbundwerkzeug flüssige Kunststoffmasse eingeleitet wird, welche die Hinterfütterung des äußeren Bleches ergibt.1. A process for the production of body parts, which consist of a thin outer sheet which is back-lined with a plastic, for example SMC plastic, characterized in that in a first step the edges of the sheet to be processed each by more than 90 ° are bent inside, that subsequently after inserting the sheet in question into a composite tool, these edges are bent back further to form an edge with a U-shaped cross-section, and that liquid plastic mass is finally introduced into this composite tool, which results in the backing of the outer sheet . 2. Verbundwerkzeug, bestehend aus einer Matrize, auf welche unter Zwischenlegung des zu verarbeitenden Bleches ein entsprechend geformter Stempel aufdrückbar ist, zur Durchführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß in eine ringförmige Aus­ sparung (3) des Stempels (2) ein entlang des Umfangs des herzustellenden Karosserieteils (6, 8) verlaufender gefederter Rahmen (4) eingesetzt ist, welcher beim Auf­ drücken des Stempels (2) auf die Matrize (1) die nach oben umgebogenen Ränder (7) des zu verarbeitenden Bleches (6) weiter nach innen biegt und damit bei der folgenden Hinterfütterung mit Kunststoff (8) nach außen hin abdichtet und gleichzeitig die betreffenden Ränder (7) vor ungewünschtem Kunststoffauftrag schützt.2. Composite tool, consisting of a die, on which, with the interposition of the sheet to be processed, a correspondingly shaped stamp can be pressed on, for carrying out the method according to claim 1, characterized in that in an annular cutout ( 3 ) from the stamp ( 2 ) a spring-loaded frame ( 4 ) is used which runs along the circumference of the body part ( 6 , 8 ) to be produced and which, when the stamp ( 2 ) is pressed onto the die ( 1 ), has the upwardly bent edges ( 7 ) of the sheet metal ( 6 ) to be processed bends further inwards and thus seals outwards during the subsequent backing with plastic ( 8 ) and at the same time protects the relevant edges ( 7 ) against undesired plastic application.
DE19863634596 1986-10-10 1986-10-10 Process and apparatus for using a composite technique to produce body parts Granted DE3634596A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19863634596 DE3634596A1 (en) 1986-10-10 1986-10-10 Process and apparatus for using a composite technique to produce body parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863634596 DE3634596A1 (en) 1986-10-10 1986-10-10 Process and apparatus for using a composite technique to produce body parts

Publications (2)

Publication Number Publication Date
DE3634596A1 true DE3634596A1 (en) 1988-04-21
DE3634596C2 DE3634596C2 (en) 1989-01-12

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DE19863634596 Granted DE3634596A1 (en) 1986-10-10 1986-10-10 Process and apparatus for using a composite technique to produce body parts

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4225161A1 (en) * 1992-07-30 1994-02-03 Happich Gmbh Gebr Process for producing a molded plastic part
FR2783746A1 (en) * 1998-09-30 2000-03-31 Valeo Thermique Moteur Sa Motor vehicle composite metal and plastic structural component has one surface of metal insert overmolded with plastic and other treated against corrosion
WO2007006263A2 (en) * 2005-07-07 2007-01-18 Webasto Ag Method for production of a composite chassis piece for a vehicle
AT511735A1 (en) * 2011-08-05 2013-02-15 Georg Kaufmann Formenbau Ag METHOD FOR PRODUCING A REFLECTED FORM PART
WO2014173669A1 (en) * 2013-04-26 2014-10-30 Bayerische Motoren Werke Aktiengesellschaft Method and compression mould for producing hybrid components, and hybrid component produced thereby
EP4286714A1 (en) * 2022-06-02 2023-12-06 REINZ-Dichtungs-GmbH Seal and method for producing a seal

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3002560B1 (en) * 1980-01-25 1981-06-11 Kunststoffwerk Philippine Gmbh & Co Kg, 5420 Lahnstein Method and device for back-foaming soft foam plastic films with hard foam plastic
DE3428128A1 (en) * 1984-07-31 1986-02-13 Audi AG, 8070 Ingolstadt METHOD FOR PRODUCING OUTER SKIN PARTS FOR VEHICLES, AND OUTER SKIN PART MANUFACTURED BY THE METHOD

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3002560B1 (en) * 1980-01-25 1981-06-11 Kunststoffwerk Philippine Gmbh & Co Kg, 5420 Lahnstein Method and device for back-foaming soft foam plastic films with hard foam plastic
DE3428128A1 (en) * 1984-07-31 1986-02-13 Audi AG, 8070 Ingolstadt METHOD FOR PRODUCING OUTER SKIN PARTS FOR VEHICLES, AND OUTER SKIN PART MANUFACTURED BY THE METHOD

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4225161A1 (en) * 1992-07-30 1994-02-03 Happich Gmbh Gebr Process for producing a molded plastic part
US5565053A (en) * 1992-07-30 1996-10-15 Gebr. Happich Gmbh Method of manufacturing a plastic molding
FR2783746A1 (en) * 1998-09-30 2000-03-31 Valeo Thermique Moteur Sa Motor vehicle composite metal and plastic structural component has one surface of metal insert overmolded with plastic and other treated against corrosion
WO2007006263A2 (en) * 2005-07-07 2007-01-18 Webasto Ag Method for production of a composite chassis piece for a vehicle
WO2007006263A3 (en) * 2005-07-07 2008-12-04 Webasto Ag Method for production of a composite chassis piece for a vehicle
AT511735A1 (en) * 2011-08-05 2013-02-15 Georg Kaufmann Formenbau Ag METHOD FOR PRODUCING A REFLECTED FORM PART
AT511735B1 (en) * 2011-08-05 2014-12-15 Georg Kaufmann Formenbau Ag METHOD FOR PRODUCING A REFLECTED FORM PART
EP2554352B1 (en) 2011-08-05 2017-03-01 Georg Kaufmann Formenbau AG Method for producing a back-moulded part
WO2014173669A1 (en) * 2013-04-26 2014-10-30 Bayerische Motoren Werke Aktiengesellschaft Method and compression mould for producing hybrid components, and hybrid component produced thereby
EP4286714A1 (en) * 2022-06-02 2023-12-06 REINZ-Dichtungs-GmbH Seal and method for producing a seal

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