WO2008125233A1 - Method for producing a composite component - Google Patents
Method for producing a composite component Download PDFInfo
- Publication number
- WO2008125233A1 WO2008125233A1 PCT/EP2008/002683 EP2008002683W WO2008125233A1 WO 2008125233 A1 WO2008125233 A1 WO 2008125233A1 EP 2008002683 W EP2008002683 W EP 2008002683W WO 2008125233 A1 WO2008125233 A1 WO 2008125233A1
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- WO
- WIPO (PCT)
- Prior art keywords
- hollow profile
- injection molding
- composite component
- engraving
- producing
- 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.)
- Ceased
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Classifications
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- 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
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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
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
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- 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
- B29C2045/14213—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 deforming by gas or fluid pressure in the mould cavity
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- 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
- B29L2023/00—Tubular articles
Definitions
- the invention relates to a method for producing a composite component according to the preamble of claim 1
- a generic method is known from DE 100 14 332 C2.
- a preformed or unshaped hollow profile is inserted into a mold cavity of a hydroforming tool, hereinafter referred to as hydroforming tool, and filled with a pressurized fluid and pressurized.
- hydroforming tool When closing the hydroforming tool, the hollow profile is compressed at least one point from the tool, which causes the hollow profile to expand elsewhere. In this case, the hollow profile receives the desired shape and contour upon contact with the engraving of the hydroforming tool.
- injection molding material is injected via an integrated into the hydroforming die insert an injection mold in a now open, but closed during the forming cavity injection molding material, which encloses the deformed hollow profile.
- the injection molding element Upon solidification of the material, the injection molding element is formed, which undergoes a shrinkage process during solidification and thus presses against the hollow profile.
- the composite component is made with it. Although the process takes place in the same tool, it requires a relatively long cycle time. Furthermore, the contour or the cross section of the composite component is subject to manufacturing tolerances due to the unevenly proceeding shrinking process.
- the invention has the object of developing a generic method to the effect that in a simple manner a reproducible high-precision contour and cross section of the composite component while reducing the cycle time in the manufacturing process is made possible.
- the forming process by means of hydroforming and the injection molding process do not take place successively, as is known from the prior art, but simultaneously or with an overlapping time.
- the time required for producing the composite component is enormously reduced, which makes the method particularly economical.
- it is dispensed with slide or movable cores, which - as usual - cover the Spritzg discernkavtician during the conversion, so that here also time-consuming equipment for the production of the composite component is saved.
- the injected injection molding material located in the melted or doughy state is pressed against the tool engraving, whereby it very precisely reproduces the contour of the engraving.
- the method also has an advantageous effect on thin-walled hollow profile materials and / or hollow profile materials with low ductility or low elongation at break, since the heat of fusion of the injection molding material favors the formability of the hollow profile material.
- higher degrees of deformation during expansion of the hollow profile can be achieved in special cases.
- it is advantageously prevented that the injection molding pressure unevenness forms the hollow profile and thus changes the contour, since the forming pressure equally forms an internal support pressure for the hollow profile against the injection molding.
- the invention offers the advantage that in a single engraving two molding process types are applied to the hollow section without this to implement the execution of one or the other method. This also saves manufacturing time and prevents otherwise occurring manufacturing tolerances.
- the hollow profile is only after its attachment to the engraving section, which is adjacent to the bulge region. molded. This ensures that the injection molding material does not pass between the hollow profile and the engraving in the adjoining area, otherwise a portion of the intended for the formation of the injection molding of injection molding material may be undesirable lost and therefore the injection molding element can not form properly. Furthermore, the hollow profile in the adjoining area would not be reshaped konturrois, as the lying between the engraving and the hollow profile injection molding material not allows. However, the loss of time in the entire production of the composite component caused by time-delayed encapsulation is irrelevant, since the hollow profile very quickly engages the engraving in the adjoining area due to the small distance.
- Fig. 1 in a lateral longitudinal section, in sections, an inserted in an IHU tool hollow profile before forming, Fig. 2 in a lateral longitudinal section of the hollow profile
- an IHU tool 1 is shown with an integrated injection molding insert 2, wherein the hydroforming die 1 and the injection molding insert 2 have a common engraving 3, which limit a mold space 4.
- a hollow profile 5 is inserted, the pre-formed, for example, pre-bent, or may be undeformed.
- the engraving 3 has, at the location of the injection molding insert 2, a cavity 6, into which injection molding channels 7 of the insert 2 open.
- the injection molding channels 7 can open in a direction away from the gravure in a single feed channel, so that the insert 2 not only structurally simplified but also a uniform Spritzg screen horr can be constructed in a simple manner.
- the engraving has a plurality of cavities which can be charged by the same supply channel via a plurality of branch channels.
- the hollow profile 5 is inserted into the engraving 3 of the hydroforming die 1, after which it is closed.
- the hollow profile 5 is now sealed high-pressure-tight end by means of two axial punches and filled via a connected to a fluid pressure system in at least one of the axial punch extending passage with a pressurized fluid.
- the hollow profile 5 is spaced in this state from the engraving 3 outside the cavity 6 through a gap 8.
- the pressure fluid is now stretched, causing the hollow profile 5 expands.
- the hollow profile 5 bears against the engraving 3 outside the cavity 6 while bridging the gap 8 and bulges into the cavity 6.
- the adjoining this cavity 6 section 9 of the engraving 3, which forms the abutment region mentioned above, is sealed by the pressing system of the hollow profile 5.
- the hollow section 5 bulges into the cavity 6, injection molding material is injected into the cavity 6 via the injection molding channels 7, which is distributed around the hollow profile 5 in its bulging region 10, adjacent to the engraving section 9.
- the hollow profile 5 according to FIG. 3 is brought into its final shape.
- the injection molding material fills the remaining between the fully expanded hollow section 5 and the cavity 6 gap 11 completely and forms on the contour of the cavity 6 under pressing by means of the under still fluid internal high pressure standing hollow section 5 from.
- the injection molding material cools and solidifies in the sequence, steadily in contact with the cavity contour and forms an injection molding element 12.
- the resulting composite component which consists of the deformed and overmolded hollow profile 5 and the injection molding element 12 can then be removed after relaxing the pressure in the hollow section 5 and the discharge of the pressurized fluid out of this and after opening the hydroforming die 1.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Manufacturing & Machinery (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Description
Daimler AG Daimler AG
Verfahren zur Herstellung eines VerbundbauteilsMethod for producing a composite component
Die Erfindung betrifft ein Verfahren zur Herstellung eines Verbundbauteils gemäß dem Oberbegriff des Patentanspruches 1The invention relates to a method for producing a composite component according to the preamble of claim 1
Ein gattungsgemäßes Verfahren ist aus der DE 100 14 332 C2 bekannt. Beim dort beschriebenen Verfahren wird ein vorgeformtes oder ungeformtes Hohlprofil in einen Formhohlraum eines Innenhochdruckumformwerkzeuges, im folgenden IHU-Werkzeug genannt, eingelegt und mit einem Druckfluid befüllt und unter Druck gesetzt. Beim Schließen des IHU-Werkzeugs wird das Hohlprofil an zumindest einer Stelle vom Werkzeug zusammengepresst, was das Hohlprofil veranlasst, sich an anderer Stelle aufzuweiten. Hierbei erhält das Hohlprofil bei Anlage an der Gravur des IHU- werkzeugs die gewünschte Form und Kontur. Anschließend wird über einen in das IHU-Werkzeug integrierten Einsatz eines Spritzgießwerkzeuges in eine nun offene, jedoch während des Umformprozesses geschlossene Kavität Spritzgießmaterial eingespritzt, welches das umgeformte Hohlprofil umschließt. Beim Erstarren des Materials bildet sich das Spritzgießelement aus, welches beim Erstarren einem Schrumpfprozess unterliegt und sich somit an das Hohlprofil anpresst. Das Verbundbauteil ist damit hergestellt. Das Verfahren findet zwar im selben Werkzeug statt, erfordert jedoch eine relativ lange Taktzeit. Des Weiteren ist die Kontur bzw. der Querschnitt des Verbundbauteils durch den ungleich ablaufenden Schrumpfprozess Fertigungstoleranzen unterworfen. Der Erfindung liegt die Aufgabe zugrunde, ein gattungsgemäßes Verfahren dahingehend weiterzubilden, dass in einfacher Weise eine reproduzierbare hochgenaue Kontur und Querschnitt am Verbundbauteil bei gleichzeitiger Verringerung der Taktzeit im Herstellungsprozess ermöglicht wird.A generic method is known from DE 100 14 332 C2. In the method described there, a preformed or unshaped hollow profile is inserted into a mold cavity of a hydroforming tool, hereinafter referred to as hydroforming tool, and filled with a pressurized fluid and pressurized. When closing the hydroforming tool, the hollow profile is compressed at least one point from the tool, which causes the hollow profile to expand elsewhere. In this case, the hollow profile receives the desired shape and contour upon contact with the engraving of the hydroforming tool. Subsequently, injection molding material is injected via an integrated into the hydroforming die insert an injection mold in a now open, but closed during the forming cavity injection molding material, which encloses the deformed hollow profile. Upon solidification of the material, the injection molding element is formed, which undergoes a shrinkage process during solidification and thus presses against the hollow profile. The composite component is made with it. Although the process takes place in the same tool, it requires a relatively long cycle time. Furthermore, the contour or the cross section of the composite component is subject to manufacturing tolerances due to the unevenly proceeding shrinking process. The invention has the object of developing a generic method to the effect that in a simple manner a reproducible high-precision contour and cross section of the composite component while reducing the cycle time in the manufacturing process is made possible.
Die Aufgabe ist erfindungsgemäß durch die Merkmale des Patentanspruches 1 gelöst.The object is achieved by the features of claim 1.
Dank der Erfindung laufen der Umformprozess mittels IHU und der Spritzgießprozess nicht wie aus dem Stand der Technik bekannt nacheinander sondern gleichzeitig oder mit einer Überlappungszeit ab. Dadurch wird die benötigte Zeit zur Herstellung des Verbundbauteils enorm verringert, was das Verfahren besonders wirtschaftlich macht. Weiterhin wird auf Schieber oder bewegbare Kerne verzichtet, die - wie üblich - die Spritzgießkavität während der Umformung abdecken, so dass auch hier apparativer zeitlicher Aufwand für die Herstellung des Verbundbauteils eingespart wird. Des Weiteren wird durch das sich aufweitende Hohlprofil das eingespritzte im schmelzförmigen oder teigigen Zustand befindliche Spritzgießmaterial an die Werkzeuggravur gedrückt, wodurch dieses hochexakt die Kontur der Gravur nachbildet. Das Anpressen läuft insbesondere in der Erstarrungsphase des Spritzgießmaterials dem Schrumpfprozess entgegen, so dass die Kontur wie auch der Querschnitt des Spritzgießelements in ihrer hochexakten Ausprägung verbleiben. Hierdurch wird eine exakte Reproduzierbarkeit des entstandenen Verbundbauteils bei jedem Herstellungsvorgang gewährleistet. Ein externes Nachdrücken des Spritzgießmaterials kann in verfahrensökonomischer Weise entfallen, da der Druck von dem sich aufweitenden Hohlprofil über das hochgespannte Druckfluid geliefert wird. Durch den Andruck wird das Spritzgießmaterial besonders kompakt und homogen, so dass dessen mechanische Eigenschaften vergleichmäßigt werden, was auf die Verlässlichkeit des Spritzgießelements und damit des Verbundbauteils im Betrieb positiven Einfluss hat. Es ist auf jeden Fall beim erfindungsgemäßen Herstellungsprozess darauf zu achten, dass der Umformdruck, das heißt der Aufweitfortschritt auf die vorbestimmte Einspritzmenge und damit auf die Füllgeschwindigkeit der Kavität durch das Spritzgießmaterial abgestimmt ist, so dass sich das Spritzgießelement in der gewünschten Weise ausbilden kann. Das Verfahren wirkt sich zudem bei dünnwandigen Hohlprofilwerkstoffen und/oder Hohlprofilwerkstoffen geringer Duktilität bzw. geringer Bruchdehnung vorteilhaft aus, da die Schmelzwärme des Spritzgießmaterials die Umformbarkeit des Hohlprofilwerkstoffes begünstigt. Hierdurch sind in speziellen Fällen auch höhere Umformgrade beim Aufweiten des Hohlprofils erzielbar. Weiterhin wird vorteilhafter Weise verhindert, dass der Spritzgießdruck das Hohlprofil unliebsam einformt und damit des Kontur verändert, da der Umformdruck gleichermaßen einen inneren Stützdruck für das Hohlprofil gegen den Spritzgießdruck bildet. Des Weiteren bietet die Erfindung den Vorteil, dass in einer einzigen Gravur zwei formende Verfahrensarten auf das Hohlprofil angewendet werden ohne dieses zur Ausführung des einen oder anderen Verfahrens umzulegen. Dies erspart ebenfalls Herstellungszeit und verhindert sonst auftretende Fertigungstoleranzen.Thanks to the invention, the forming process by means of hydroforming and the injection molding process do not take place successively, as is known from the prior art, but simultaneously or with an overlapping time. As a result, the time required for producing the composite component is enormously reduced, which makes the method particularly economical. Furthermore, it is dispensed with slide or movable cores, which - as usual - cover the Spritzgießkavität during the conversion, so that here also time-consuming equipment for the production of the composite component is saved. Furthermore, due to the expanding hollow profile, the injected injection molding material located in the melted or doughy state is pressed against the tool engraving, whereby it very precisely reproduces the contour of the engraving. The pressing runs contrary to the shrinking process, especially in the solidification phase of the injection molding, so that the contour as well as the cross section of the injection molding remain in their highly accurate expression. As a result, an exact reproducibility of the resulting composite component is ensured in each manufacturing process. An external reprints of the injection molding material can be omitted in a procedural economic way, since the pressure is supplied by the expanding hollow profile on the highly stressed pressure fluid. As a result of the pressure, the injection molding material becomes particularly compact and homogeneous, so that its mechanical properties are evened out, which has a positive influence on the reliability of the injection molding element and thus of the composite component during operation. It is open make sure in each case in the manufacturing process according to the invention to ensure that the forming pressure, that is, the expansion advance to the predetermined injection quantity and thus to the filling speed of the cavity is tuned by the injection molding, so that the injection molding can form in the desired manner. The method also has an advantageous effect on thin-walled hollow profile materials and / or hollow profile materials with low ductility or low elongation at break, since the heat of fusion of the injection molding material favors the formability of the hollow profile material. As a result, higher degrees of deformation during expansion of the hollow profile can be achieved in special cases. Furthermore, it is advantageously prevented that the injection molding pressure unevenness forms the hollow profile and thus changes the contour, since the forming pressure equally forms an internal support pressure for the hollow profile against the injection molding. Furthermore, the invention offers the advantage that in a single engraving two molding process types are applied to the hollow section without this to implement the execution of one or the other method. This also saves manufacturing time and prevents otherwise occurring manufacturing tolerances.
In einer bevorzugten Weiterbildung der Erfindung nach Anspruch 2 wird das Hohlprofil erst nach seiner Anlage an dem Gravurabschnitt, der an den Ausbauchbereich angrenzt, . umspritzt. Hierdurch wird erreicht, dass das Spritzgießmaterial nicht zwischen das Hohlprofil und die Gravur in den Angrenzungsbereich gelangt, wodurch anderenfalls ein Teil der für die Ausbildung des Spritzgießelementes vorgesehenen Menge an Spritzgießmaterial gegebenenfalls unerwünscht verloren geht und daher das Spritzgießelement sich nicht richtig ausbilden kann. Weiterhin würde das Hohlprofil im Angrenzungsbereich nicht konturgerecht umgeformt werden, da das zwischen der Gravur und dem Hohlprofil liegende Spritzgießmaterial dies nicht zulässt. Der bei der zeitversetzten Umspritzung entstehende Zeitverlust in der gesamten Herstellung des Verbundbauteils ist jedoch unerheblich, da sich das Hohlprofil im Angrenzungsbereich aufgrund der geringen Distanz sehr schnell an die Gravur anlegt.In a preferred embodiment of the invention according to claim 2, the hollow profile is only after its attachment to the engraving section, which is adjacent to the bulge region. molded. This ensures that the injection molding material does not pass between the hollow profile and the engraving in the adjoining area, otherwise a portion of the intended for the formation of the injection molding of injection molding material may be undesirable lost and therefore the injection molding element can not form properly. Furthermore, the hollow profile in the adjoining area would not be reshaped konturgerecht, as the lying between the engraving and the hollow profile injection molding material not allows. However, the loss of time in the entire production of the composite component caused by time-delayed encapsulation is irrelevant, since the hollow profile very quickly engages the engraving in the adjoining area due to the small distance.
Nachfolgend ist die Erfindung anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels näher erläutert.The invention is explained in more detail with reference to an embodiment shown in the drawings.
Dabei zeigen:Showing:
Fig. 1 in einem seitlichen Längsschnitt abschnittsweise ein in ein IHU-Werkzeug eingelegtes Hohlprofil vor der Umformung, Fig. 2 in einem seitlichen Längsschnitt das Hohlprofil ausFig. 1 in a lateral longitudinal section, in sections, an inserted in an IHU tool hollow profile before forming, Fig. 2 in a lateral longitudinal section of the hollow profile
Fig. 1 in der Anfangsphase der Umformung und gleichzeitigen Umspritzung, Fig. 3 in einem seitlichen Längsschnitt das Hohlprofil ausFig. 1 in the initial phase of the forming and simultaneous encapsulation, Fig. 3 in a lateral longitudinal section of the hollow profile
Fig. 1 nach Umformung und Umspritzung.Fig. 1 after forming and encapsulation.
In Fig. 1 ist ein IHU-Werkzeug 1 mit einem integrierten Spritzgießeinsatz 2 dargestellt, wobei das IHU-Werkzeug 1 und der Spritzgießeinsatz 2 eine gemeinsame Gravur 3 aufweisen, die einen Formraum 4 begrenzen. In diesen Formraum 4 ist ein Hohlprofil 5 eingelegt, das vorverformt, beispielsweise vorgebogen, oder auch unverformt sein kann. Die Gravur 3 weist an der Stelle des Spritzgießeinsatzes 2 eine Kavität 6 auf, in die Spritzgießkanäle 7 des Einsatzes 2 einmünden. Die Spritzgießkanäle 7 können in gravurabgewandter Richtung in einen einzigen Speisungskanal münden, so dass sich der Einsatz 2 nicht nur baulich vereinfacht sondern auch ein einheitlicher Spritzgießdruck in einfacher Weise aufgebaut werden kann. Weiterhin ist es denkbar, dass die Gravur mehrere Kavitäten aufweist, die vom gleichen Speisungskanal über mehrere Zweigkanäle beschickt werden können. Zur Herstellung des Verbundbauteils wird das Hohlprofil 5 in die Gravur 3 des IHU-Werkzeugs 1 eingelegt, wonach dieses geschlossen wird. Das Hohlprofil 5 wird nun endseitig mittels zweier Axialstempel hochdruckdicht abgedichtet und über einen mit einer Fluidhochdruckanlage verbundenen in zumindest einem der Axialstempel verlaufenden Durchgangskanal mit einem Druckfluid befüllt. Das Hohlprofil 5 ist in diesem Zustand von der Gravur 3 außerhalb der Kavität 6 durch einen Spalt 8 beabstandet. Das Druckfluid wird nun gespannt, wodurch sich das Hohlprofil 5 aufweitet.In Fig. 1, an IHU tool 1 is shown with an integrated injection molding insert 2, wherein the hydroforming die 1 and the injection molding insert 2 have a common engraving 3, which limit a mold space 4. In this cavity 4, a hollow profile 5 is inserted, the pre-formed, for example, pre-bent, or may be undeformed. The engraving 3 has, at the location of the injection molding insert 2, a cavity 6, into which injection molding channels 7 of the insert 2 open. The injection molding channels 7 can open in a direction away from the gravure in a single feed channel, so that the insert 2 not only structurally simplified but also a uniform Spritzgießdruck can be constructed in a simple manner. Furthermore, it is conceivable that the engraving has a plurality of cavities which can be charged by the same supply channel via a plurality of branch channels. To produce the composite component, the hollow profile 5 is inserted into the engraving 3 of the hydroforming die 1, after which it is closed. The hollow profile 5 is now sealed high-pressure-tight end by means of two axial punches and filled via a connected to a fluid pressure system in at least one of the axial punch extending passage with a pressurized fluid. The hollow profile 5 is spaced in this state from the engraving 3 outside the cavity 6 through a gap 8. The pressure fluid is now stretched, causing the hollow profile 5 expands.
Gemäß Fig. 2 legt sich während einer ersten Aufweitphase das Hohlprofil 5 an der Gravur 3 außerhalb der Kavität 6 unter Überbrückung des Spaltes 8 an und baucht sich in die Kavität 6 hinein. Der sich an diese Kavität 6 anschließende Abschnitt 9 der Gravur 3, der den oben erwähnten Angrenzungsbereich bildet, ist durch die anpressende Anlage der Hohlprofils 5 abgedichtet. Währenddessen sich das Hohlprofil 5 in die Kavität 6 hinein ausbaucht, wird über die Spritzgießkanäle 7 Spritzgießmaterial in die Kavität 6 eingespritzt, welches sich um das Hohlprofil 5 herum in dessen Ausbauchbereich 10, an den der Gravurabschnitt 9 grenzt, verteilt.According to FIG. 2, during a first expansion phase, the hollow profile 5 bears against the engraving 3 outside the cavity 6 while bridging the gap 8 and bulges into the cavity 6. The adjoining this cavity 6 section 9 of the engraving 3, which forms the abutment region mentioned above, is sealed by the pressing system of the hollow profile 5. Meanwhile, the hollow section 5 bulges into the cavity 6, injection molding material is injected into the cavity 6 via the injection molding channels 7, which is distributed around the hollow profile 5 in its bulging region 10, adjacent to the engraving section 9.
In der zweiten sich an die erste Aufweitphase kontinuierlich anschließende Aufweitphase wird das Hohlprofil 5 gemäß Fig. 3 in seine Endform gebracht. Das Spritzgießmaterial füllt den zwischen dem fertig aufgeweiteten Hohlprofil 5 und der Kavität 6 verbliebenen Zwischenraum 11 gänzlich aus und formt sich an der Kontur der Kavität 6 unter Anpressen mittels des unter weiterhin fluidischem Innenhochdruck stehenden Hohlprofils 5 ab. Das Spritzgießmaterial erkaltet und erstarrt in der Folge, stetig in Anlage an der Kavitätskontur und bildet ein Spritzgießelement 12 aus. Hierbei wird das Schrumpfen des Kunststoffmaterials kompensiert. Das damit entstandene Verbundbauteil, das aus dem umgeformten und umspritzten Hohlprofil 5 und dem Spritzgießelement 12 besteht, kann dann nach Entspannen des Druckes im Hohlprofil 5 und dem Herausleiten des Druckfluids aus diesem heraus sowie nach Öffnen des IHU-Werkzeugs 1 entnommen werden. In the second expansion phase continuously following the first expansion phase, the hollow profile 5 according to FIG. 3 is brought into its final shape. The injection molding material fills the remaining between the fully expanded hollow section 5 and the cavity 6 gap 11 completely and forms on the contour of the cavity 6 under pressing by means of the under still fluid internal high pressure standing hollow section 5 from. The injection molding material cools and solidifies in the sequence, steadily in contact with the cavity contour and forms an injection molding element 12. Here is the Shrinking the plastic material compensated. The resulting composite component, which consists of the deformed and overmolded hollow profile 5 and the injection molding element 12 can then be removed after relaxing the pressure in the hollow section 5 and the discharge of the pressurized fluid out of this and after opening the hydroforming die 1.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007017414.6 | 2007-04-13 | ||
| DE102007017414A DE102007017414A1 (en) | 2007-04-13 | 2007-04-13 | Method for producing a composite component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008125233A1 true WO2008125233A1 (en) | 2008-10-23 |
Family
ID=39643829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2008/002683 Ceased WO2008125233A1 (en) | 2007-04-13 | 2008-04-04 | Method for producing a composite component |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE102007017414A1 (en) |
| WO (1) | WO2008125233A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011023258A1 (en) | 2009-08-27 | 2011-03-03 | Daimler Ag | Method for producing a composite component |
| DE102019208562A1 (en) * | 2019-06-12 | 2020-12-17 | Elringklinger Ag | Method for producing a component, component, forming tool for producing a component and device for producing a component |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012018788B4 (en) | 2012-09-22 | 2021-05-27 | Daimler Ag | Method for producing a composite component |
| DE102014004158A1 (en) | 2014-03-17 | 2015-09-17 | Technische Universität Dresden | Process for the production of structural elements from load introduction element and fiber-plastic composite hollow profile and structural elements |
| DE102014019724A1 (en) | 2014-03-17 | 2015-09-17 | Technische Universität Dresden | Process for the production of structural elements made of functional element and fiber-plastic composite hollow profile and structural elements |
| DE102015011893A1 (en) | 2015-09-11 | 2017-03-16 | Daimler Ag | Method and tool for producing a component |
| DE102016224015A1 (en) | 2016-12-02 | 2018-06-07 | Zf Friedrichshafen Ag | Method for producing a component |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0577026A (en) * | 1991-09-25 | 1993-03-30 | Mazda Motor Corp | Composite cam shaft and manufacture of same |
| DE10014332A1 (en) * | 2000-03-24 | 2001-10-04 | Basf Ag | Composite component and method for its production |
| WO2001087568A1 (en) * | 2000-05-17 | 2001-11-22 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method and device for making a cast part from a plastic/metal compound and device use |
| DE10326768A1 (en) * | 2002-06-28 | 2004-01-22 | Basf Ag | Combined internal high pressure forming and injection molding process for production of hybrid metal and plastic components involves hydroforming a sealed, fluid filled preform followed by plastic injection |
| WO2008067901A1 (en) * | 2006-12-06 | 2008-06-12 | Daimler Ag | Method for the production of a composite component |
-
2007
- 2007-04-13 DE DE102007017414A patent/DE102007017414A1/en not_active Withdrawn
-
2008
- 2008-04-04 WO PCT/EP2008/002683 patent/WO2008125233A1/en not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0577026A (en) * | 1991-09-25 | 1993-03-30 | Mazda Motor Corp | Composite cam shaft and manufacture of same |
| DE10014332A1 (en) * | 2000-03-24 | 2001-10-04 | Basf Ag | Composite component and method for its production |
| WO2001072495A1 (en) * | 2000-03-24 | 2001-10-04 | Basf Aktiengesellschaft | Composite structural element and method for producing the same |
| WO2001087568A1 (en) * | 2000-05-17 | 2001-11-22 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method and device for making a cast part from a plastic/metal compound and device use |
| DE10326768A1 (en) * | 2002-06-28 | 2004-01-22 | Basf Ag | Combined internal high pressure forming and injection molding process for production of hybrid metal and plastic components involves hydroforming a sealed, fluid filled preform followed by plastic injection |
| WO2008067901A1 (en) * | 2006-12-06 | 2008-06-12 | Daimler Ag | Method for the production of a composite component |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011023258A1 (en) | 2009-08-27 | 2011-03-03 | Daimler Ag | Method for producing a composite component |
| DE102009039081A1 (en) | 2009-08-27 | 2011-03-03 | Daimler Ag | Method for producing a composite component |
| US20120181731A1 (en) * | 2009-08-27 | 2012-07-19 | Daimler Ag | Method of Producing a Composite Component |
| US9387609B2 (en) | 2009-08-27 | 2016-07-12 | Daimler Ag | Method of producing a composite component |
| DE102009039081B4 (en) * | 2009-08-27 | 2020-03-05 | Daimler Ag | Method of manufacturing a composite component |
| DE102019208562A1 (en) * | 2019-06-12 | 2020-12-17 | Elringklinger Ag | Method for producing a component, component, forming tool for producing a component and device for producing a component |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102007017414A1 (en) | 2008-10-23 |
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