DE102006049180A1 - Production of one-piece moldings from molding material using molding tools to produce cured thermoset moldings with cavity uses core inserted between layers of molding material to produce cavity - Google Patents
Production of one-piece moldings from molding material using molding tools to produce cured thermoset moldings with cavity uses core inserted between layers of molding material to produce cavity Download PDFInfo
- Publication number
- DE102006049180A1 DE102006049180A1 DE102006049180A DE102006049180A DE102006049180A1 DE 102006049180 A1 DE102006049180 A1 DE 102006049180A1 DE 102006049180 A DE102006049180 A DE 102006049180A DE 102006049180 A DE102006049180 A DE 102006049180A DE 102006049180 A1 DE102006049180 A1 DE 102006049180A1
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- Germany
- Prior art keywords
- core
- molding material
- core element
- cavity
- press tool
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- 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.)
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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
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
- B29C2043/3665—Moulds for making articles of definite length, i.e. discrete articles cores or inserts, e.g. pins, mandrels, sliders
-
- 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
- B29C33/0011—Moulds or cores; Details thereof or accessories therefor thin-walled moulds
- B29C33/0016—Lost moulds, e.g. staying on the moulded object
-
- 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
- B29C33/0033—Moulds or cores; Details thereof or accessories therefor constructed for making articles provided with holes
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/021—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
-
- 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
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
- B29K2101/10—Thermosetting resins
-
- 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
- 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
- B29K2105/048—Expandable particles, beads or granules
-
- 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
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
- B29K2105/0872—Prepregs
-
- 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
- B29L2022/00—Hollow articles
-
- 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
- B29L2022/00—Hollow articles
- B29L2022/005—Hollow articles having dividing walls, e.g. additional elements placed between object parts
- B29L2022/007—Hollow articles having dividing walls, e.g. additional elements placed between object parts integrally moulded or formed
-
- 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
- B29L2031/3005—Body finishings
Abstract
Description
Die Erfindng betrifft ein Verfahren zum Herstellen eines einteiligen Körpers aus mindestens einem Formmaterial, das mittels eines Umformpresswerkzeugs umgeformt wird unter Ausbildung eines ausgehärteten, duroplastischen Körpers.The Erfindng relates to a method for producing a one-piece body from at least one molding material by means of a forming press tool is transformed to form a cured thermoset body.
Verfahren
der eingangs genannten Art sind bekannt. Beispielsweise offenbart
die
Es ist Aufgabe der Erfindung, ein flexibel einsetzbares Verfahren zum Herstellen eines einteiligen Duroplastkörpers anzugeben.It Object of the invention is a flexible method for Produce a one-piece thermoset body specify.
Die Aufgabe wird gelöst durch ein Verfahren mit den Merkmalen des Anspruchs 1. Das erfindungsgemäße Verfahren zeichnet sich dadurch aus, dass der Körper ein Hohlkörper mit einem Hohlraum ist, wobei zur Bildung des Hohlraums ein Kernelement im Formmaterial innerhalb des Umformpresswerkzeugs geeignet angeordnet wird. Mittels des Verfahrens ist es nun möglich, ein duroplastisches Formmaterial mittels eines Umformpresswerkzeugs unter Ausnutzung eines Aushärtungsprozesses derart umzuformen, dass ein einteiliger Hohlkörper mit einem Hohlraum hergestellt werden kann. Bei traditionellen Hohlkörperherstellungsverfahren werden lediglich einzelne Körperanteile aus einem duroplastischen Formmaterial mittels eines Umformpresswerkzeugs hergestellt und anschließend miteinander beispielsweise mittels einer Niet-, Schraub- oder Klebverbindung zusammengefügt. Diese traditionelle Methode zur Herstellung eines Hohlkörpers ist dabei verhältnismäßig kompliziert und fertigungstechnisch aufwendig.The Task is solved by a method having the features of claim 1. The method according to the invention is characterized by the fact that the body is a hollow body a cavity, wherein to form the cavity, a core element suitably arranged in the molding material within the Umformpresswerkzeugs becomes. By means of the method it is now possible to use a thermosetting molding material by means of a forming press tool utilizing a curing process to transform such that a one-piece hollow body produced with a cavity can be. In traditional hollow body manufacturing processes only individual body parts from a thermosetting molding material by means of a forming press tool produced and then with each other, for example by means of a rivet, screw or adhesive connection together. This traditional method of producing a hollow body is thereby relatively complicated and manufacturing technology consuming.
Der Hohlkörper kann mittels des Umformpresswerkzeugs in einem einzigen Umformpressvorgang hergestellt werden. Hierbei ist es möglich, dass der Umformprozess und der Aushärteprozess voneinander getrennt oder nahezu gleichzeitig erfolgen.Of the hollow body can by means of the forming press tool in a single Umformpressvorgang getting produced. It is possible that the forming process and the curing process separated or almost simultaneously.
Der Hohlkörper kann aus verschiedenen duroplastischen Formmaterialien bestehen. Dabei können die verschiedenen Formmaterialien ggf. unterschiedliche Funktionen erfüllen, z.B. eine Trägerfunktion in einem festigkeitsrelevanten Bereich des Hohlkörpers oder eine ästhetische Funktion an einer Sichtseite des Hohlkörpers.Of the hollow body may consist of different thermosetting molding materials. It can the different molding materials possibly different functions fulfill, e.g. a carrier function in a strength-relevant area of the hollow body or an aesthetic Function on a visible side of the hollow body.
Das Formmaterial kann vor dem Aushärten aus mindestens einem Rohelement und insbesondere aus zwei voneinander getrennten Rohelementen bestehen. Ferner kann das Rohelement vor dem Aushärten aus einer Formmasse bestehen, die insbesondere mattenförmig ausgebildet ist. Die Formmasse kann z.B. ein SMC (Sheet Molding Compound) sein, das insbesondere mattenförmig ausgebildet ist. Gegebenenfalls kann das Rohelement auch als ebenes Zuschnittelement ausgebildet sein. Derartige Rohelemente sind an sich bekannt, wobei sie mittels des Verfahrens besonders flexibel zur Herstellung eines Hohlkörpers genutzt werden können. Das Formmaterial kann beispielsweise ein Faserverbundwerkstoff sein.The Mold material can be made out before curing at least one raw element and in particular from two from each other consist of separate raw elements. Furthermore, the raw element before curing consist of a molding compound, which in particular is mat-shaped is. The molding compound may e.g. a SMC (Sheet Molding Compound), in particular mat-shaped is trained. Optionally, the raw element as a flat Blank element be formed. Such raw elements are on are known, whereby they are particularly flexible by means of the method for producing a hollow body can be used. The Mold material may be, for example, a fiber composite material.
Gemäß einer möglichen Ausführungsvariante ist der Körper als ein mehrschaliger Körper mit Formschalen ausgebildet, die miteinander entlang ihres Umfangs stoffschlüssig verbunden sind. Das Verfahren erlaubt nun vorteilhaft, im Rahmen eines einzigen Umformpressvorgangs einen mehrschaligen Hohlkörper herzustellen. Dabei kann der Körper entlang seines vollständigen Umfangs oder auch nur entlang eines Teils seines Umfangs stoffschlüssig miteinander verbundene Formschalen enthalten.According to one potential variant is the body as a multi-shelled body formed with shell molds along each other along their circumference cohesively are connected. The method now allows advantageous in the context a single Umformpressvorgangs produce a multi-shell hollow body. In doing so, the body can along its whole Circumference or only along a portion of its circumference cohesively with each other Contain connected shell molds.
Die Aushärtung des Formmaterials innerhalb des Umformpresswerkzeugs kann unter erhöhtem Betriebsdruck und/oder unter erhöhter Betriebstemperatur erfolgen. Dabei ist der Aushärtungsprozess des Formmaterials an sich bekannt.The curing of the molding material within the forming press tool can under increased operating pressure and / or under increased Operating temperature. Here is the curing process of the molding material known in itself.
Das Kernelement kann als ein separates Funktionselement ausgebildet sein und ggf. aus einem löslichen Kernmaterial oder aus einem schmelzbaren Kernmaterial oder aus einem zersetzbaren Kernmaterial bestehen. Somit können in Abhängigkeit der Herstellungsanforderungen an den Hohlkörper jeweils geeignete Kernelemente vorgesehen werden, wobei die unterschiedlichen Kernmaterialien an sich bekannt sind.The Core element may be formed as a separate functional element be and possibly from a soluble Nuclear material or of a fusible core material or of a consist of decomposable nuclear material. Thus, depending on the manufacturing requirements to the hollow body each suitable core elements are provided, wherein the different Core materials are known per se.
Der Körper kann ein im Wesentlichen geschlossener Hohlkörper mit mindestens einer Öffnung sein, durch welche der Hohlraum von außen zugänglich ist. Dabei kann das Kernelement nach der Aushärtung des Formmaterials aus dem Körper entfernt werden oder ggf. auch in selbigem verbleiben. Letztere Variante wäre auch z.B. bei einem vollständig geschlossenen Hohlkörper möglich.Of the body may be a substantially closed hollow body with at least one opening, through which the cavity is accessible from the outside. It can do that Core element after curing of the molding material from the body be removed or if necessary also remain in selbigem. Latter Variant would be also e.g. at a complete closed hollow body possible.
Gemäß einer möglichen Ausführungsform ist das Kernelement ein kompressibles Kernelement und/oder ein expandierendes Kernelement. Das Kernelement ist ggf. aus einem porösen Kernmaterial hergestellt. Somit lassen sich mittels des Verfahrens unterschiedlichste Hohlkörper herstellen, wobei das Kernelement aus dem Hohlkörper entfernt werden oder auch gegebenenfalls in selbigem verbleiben kann. Das Kernelement kann gegebenenfalls auf Grund seiner Expansionseigenschaften während des Umformpressverfahrens zur Erzielung einer hinreichend guten Formgenauigkeit des Hohlkörpers genutzt werden.According to one potential embodiment the core element is a compressible core element and / or an expanding one Core element. The core element is possibly made of a porous core material. Thus, by means of the method, a great variety of hollow bodies can be produced, wherein the core element are removed from the hollow body or else optionally may remain in selbigem. The core element can optionally due to its expansion properties during the forming process used to achieve a sufficiently good dimensional accuracy of the hollow body become.
Entsprechend einer möglichen Ausführungsvariante kann das Kernelement und/oder das Umformpresswerkzeug eine Seite mit einer geometrischen Oberflächenstrukturierung und eine Seite mit einer ebenen Oberfläche aufweisen. Ferner kann das Kernelement eine Mehrzahl an zueinander beabstandet angeordneten Kernteilen enthalten zu Herstellung eines räumlich strukturierten Hohlraumes. Das Kernelement kann einteilig oder mehrteilig ausgebildet sein. Dabei kann ein mehrteiliges Kernelement aus unterschiedlichen Kernmaterialien bestehen. Auf Grund der Möglichkeit einer besonders flexiblen Kernausgestaltung lassen sich auf verhältnismäßig einfache Weise unterschiedlichste Anforderungen an das Verfahren zur Herstellung von Hohlkörpern aus einem duroplastischen Formmaterial mittels eines geeigneten Umformpresswerkzeugs reproduzierbar genau erfüllen.Corresponding a possible variant For example, the core element and / or the forming press tool may be one side with a geometric surface structuring and have a side with a flat surface. Furthermore, can the core member has a plurality of spaced-apart ones Core parts included to produce a spatially structured cavity. The core element may be formed in one or more parts. In this case, a multipart core element made of different core materials consist. Because of the possibility A particularly flexible core design can be relatively simple There are different requirements for the manufacturing process of hollow bodies from a thermosetting molding material by means of a suitable Precision accurate fulfillment of forming press tool.
Das Verfahren eignet sich insbesondere zu Herstellung eines Körpers, der ein Serienkarosserieelement für ein Fahrzeug ist. Auf Grund der hohen Anzahl an mittels des Verfahrens herstellbaren Körpern lassen sich ggf. erhebliche Herstellungskosten und insbesondere verhältnismäßig kurze Herstellungszeiten für die entsprechenden Körper erzielen.The Method is particularly suitable for producing a body, the a standard body element for a vehicle is. Due to the high number of by means of the method producible bodies If necessary, significant production costs and in particular relatively short Manufacturing times for the corresponding bodies achieve.
Das Umformpresswerkzeug kann eine Stempeleinheit und eine Gegenhaltereinheit aufweisen. Dabei kann die Stempeleinheit und/oder die Gegenhaltereinheit in mindestens einer Umformrichtung bewegbar sein. Prinzipiell sind auch andere konstruktive Ausgestaltungen eines Umformpresswerkzeugs denkbar.The Forming press tool can be a stamp unit and a counter unit exhibit. In this case, the stamp unit and / or the counter-holder unit be movable in at least one forming direction. In principle, they are Other structural embodiments of a Umformpresswerkzeugs conceivable.
Weitere Vorteile der Erfindung ergeben sich aus der Beschreibung.Further Advantages of the invention will become apparent from the description.
Die Erfindung wird anhand mehrerer bevorzugter Ausführungsbeispiele unter Bezugnahme auf eine schematische Zeichnung näher erläutert.The Invention will be with reference to several preferred embodiments with reference explained in more detail on a schematic drawing.
Dabei zeigen:there demonstrate:
Zur
Herstellung eines Körpers
In
Claims (22)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102006049180.7A DE102006049180B4 (en) | 2006-10-18 | 2006-10-18 | Method for producing a one-part thermoset body |
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DE102006049180.7A DE102006049180B4 (en) | 2006-10-18 | 2006-10-18 | Method for producing a one-part thermoset body |
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DE102006049180A1 true DE102006049180A1 (en) | 2008-04-30 |
DE102006049180B4 DE102006049180B4 (en) | 2014-12-31 |
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Cited By (1)
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DE102015212661A1 (en) * | 2015-07-07 | 2016-09-01 | Audi Ag | Method and device for producing a fiber-plastic composite molding |
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US6713008B1 (en) * | 2000-06-23 | 2004-03-30 | Darrin Blake Teeter | Method for making composite structures |
DE10219276B4 (en) * | 2002-04-30 | 2006-04-27 | Daimlerchrysler Ag | Multiaxial manipulable removal gripper |
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DE102015212661A1 (en) * | 2015-07-07 | 2016-09-01 | Audi Ag | Method and device for producing a fiber-plastic composite molding |
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Owner name: DAIMLER AG, DE Free format text: FORMER OWNER: DAIMLER AG, 70327 STUTTGART, DE |