EP2008740A1 - Method and device for pressure moulding of layered metal moulded pieces - Google Patents

Method and device for pressure moulding of layered metal moulded pieces Download PDF

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Publication number
EP2008740A1
EP2008740A1 EP08011310A EP08011310A EP2008740A1 EP 2008740 A1 EP2008740 A1 EP 2008740A1 EP 08011310 A EP08011310 A EP 08011310A EP 08011310 A EP08011310 A EP 08011310A EP 2008740 A1 EP2008740 A1 EP 2008740A1
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Prior art keywords
die
casting
pressure
mold
inserts
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EP08011310A
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German (de)
French (fr)
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EP2008740B1 (en
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Eckhard Dipl.-Ing. Schindler
Kai Dipl.-Ing. Stets
Michael Strube
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Trimet Aluminium SE
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Trimet Aluminium SE
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/0072—Casting in, on, or around objects which form part of the product for making objects with integrated channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/24—Accessories for locating and holding cores or inserts

Abstract

Die casting involves providing inserts with projections or thickness in their wall as open or closed hollow section parts. The inserts are fixed and positioned before die casting, and are positioned at its convexity or thickness. The projections or thickness (2) are fix at point shaped contact points in the die caste mold and fixed during closing the die cast mold between the half-molds, slidegate valves or slidegate valves. Pressure pipes are locked before casting and then casted in completely by the die casting material. Independent claims are included for: (1) a device, which comprises a die casting mold with two half-molds; and (2) a pressure die casting, which has hollow chambers, channels or structured sections.

Description

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Druckgießen von gegliederten Metallgussstücken, insbesondere von Aluminium bzw. Aluminiumgussstücken in einer Druckgussform unter Verwendung von Schiebern, Gravurelementen und Einlegeteilen, die vor dem Gießen positioniert und fixiert werden. Die Erfindung betrifft auch ein neues Hohlkammer-Druckgussteil.The invention relates to a method and a device for die casting of articulated metal castings, in particular of aluminum or aluminum castings in a die casting mold using slides, engraving elements and inserts, which are positioned and fixed prior to casting. The invention also relates to a new hollow-chamber die cast part.

Druckgießformen mit einem Einlegeteil, im Folgenden auch Druckrohr genannt, werden für die Herstellung von Leichtmetalldruckgussteilen in unterschiedlichsten Formen eingesetzt. Druckrohre können beispielsweise im Bereich von Lagern, die die Ölversorgung bei Motoren- und Getriebegehäuse sicherstellen, eingesetzt werden.Die casting molds with an insert, also referred to below as the pressure tube, are used for the production of light metal die-cast parts in a wide variety of forms. Pressure pipes can be used, for example, in the area of bearings that ensure the oil supply to engine and gearbox housing.

Für die Herstellung solcher Druckgusserzeugnisse müssen die Einlegeteile hochgenau im Werkzeug bzw. in der Formhälfte positioniert werden und während des Druckgussprozesses mit Hilfe von Positionierelementen stabil in dieser Lage gehalten werden. Nach Entnahme des Druckgusswerkstücks aus der Gießform ist das Einlegeteil außer an den Angriffsstellen der Positionierelemente vollständig mit Gusswerkstoff umhüllt.For the production of such die-cast products, the inserts must be positioned with high precision in the tool or in the mold half and kept stable in this position during the die-casting process by means of positioning elements. After removal of the die-cast workpiece from the mold, the insert is completely wrapped with cast material except at the points of attack of the positioning.

Um ein Eindringen von Gusswerkstoff in das Innere von Druckrohren zu verhindern, kann dieses durch Verstemmen oder durch Verschlussstopfen verschlossen werden. Nach dem Gießen wird zum Öffnen des Druckrohrs eine mechanische Bearbeitung durchgeführt.To prevent penetration of casting material into the interior of pressure pipes, this can be closed by caulking or by sealing plugs. After casting, mechanical processing is performed to open the pressure tube.

Aus der DE 10153721 (Daimler Chrysler AG) ist ein Verfahren zum Druckgießen von gegliederten Metallgussstücken bekannt, bei dem ein Abstandshalter für das Gießwerkzeug verwendet wird. Allerdings besitzen die Formhälften keine Schieber und der Abstandshalter wird beim Schließen der Druckgussform nicht punktförmig fixiert. Aus der DE 102005004486 (Peak Werkstoff GmbH) ist eine Laufbuchse zum Eingießen in einen Motorblock bekannt, die aus einer Aluminiumdruckgusslegierung besteht und Vorsprünge nach Art einer Haifischflosse aufweist. Das Eingießen erfolgt jedoch nicht über Formhälften, die Sacklöcher, Gravuren oder andere Positionier- und Fixierflächen aufweisen. Das Einlegeteil wird auch nicht an seinen Ausbuchtungen oder Verdickungen an punktförmigen Kontaktstellen in der Druckgussform positioniert und beim Schließen der Druckgussform zwischen den Formhälften, Schiebern oder Schiebern und Formhälften fixiert.From the DE 10153721 (Daimler Chrysler AG) discloses a method for die casting of articulated metal castings using a spacer for the casting tool. However, the mold halves have no slides and the spacer is not fixed punctiform when closing the die. From the DE 102005004486 (Peak Material GmbH), a bushing for pouring into an engine block is known, which consists of an aluminum die cast alloy and having projections in the manner of a shark fin. However, pouring does not take place via mold halves which have blind holes, engravings or other positioning and fixing surfaces. The insert is also not positioned at its bulges or thickenings at point-shaped contact points in the die and fixed when closing the die between the mold halves, slides or slides and mold halves.

Aufgabe der vorliegenden Erfindung ist es, ein Verfahren und eine Vorrichtung zum Druckgießen zu entwickeln, mit dem die Positionierung der Druckrohre insbesondere bei der Verwendung von Schiebern, beweglichen Gravurelementen und Einlegeteilen relativ einfach und trotzdem hochgenau durchgeführt werden kann. Ferner sollen das Verfahren und die Vorrichtung das möglichst vollständige Umgießen der Einlegeteile bzw. der Druckrohre ermöglichen und dadurch die Dichtheit insbesondere im Motoren- und Getriebebau verbessern.The object of the present invention is to develop a method and a device for die-casting, with which the positioning of the pressure pipes can be performed relatively simply and nevertheless with high precision, in particular when using slides, movable engraving elements and inserts. Furthermore, the method and the device should allow the most complete encapsulation of the inserts or the pressure pipes and thereby improve the tightness, especially in engine and transmission construction.

Diese Aufgabe wird erfindungsgemäß durch die in den Patentansprüchen 1 und 8 angegebenen Merkmale gelöst. Im Anspruch 11 ist ein erfindungsgemäß ausgebildetes Druckgussteil angegeben.This object is achieved by the features specified in the claims 1 and 8 features. In claim 11, an inventively designed die casting is specified.

Im Wesentlichen besteht die Erfindung darin, dass die Einlegeteile als Hohlprofilteile mit Ausbuchtungen oder Verdickungen in ihrer Wandung vorzugsweise aus einem mit dem Material des Gussstücks artgleichen Werkstoff bestehen und dass die Einlegeteile an ihren Ausbuchtungen oder Verdickungen punktförmig in der Druckgussform positioniert und beim Schließen der Druckgussform zwischen den Formhälften, bzw. zwischen Schiebern oder Schiebern und Formhälften fixiert werden.In essence, the invention consists in that the inserts as hollow profile parts with bulges or thickenings in its wall preferably consist of a material similar to the material of the casting material and that the inserts positioned at their bulges or thickenings punctiform in the die and when closing the die between the mold halves, or between slides or slides and mold halves are fixed.

Mit der Ausbildung von Ausbuchtungen oder Verdickungen an einem als Hohlprofilteil ausgeformten Einlegeteil ist es möglich, dieses in der Druckgießform ohne besondere Hilfsmittel zu positionieren. Ferner ist eine einfache Fixierung der Einlegeteile bzw. Druckrohre vorgesehen, um beispielsweise die Position zur Lager- und Anschlussstelle festzulegen. Dabei müssen die auf dem Einlegeteil bzw. Druckrohr ausgeformten Ausbuchtungen oder Verdickungen als Abstützelemente so angeordnet sein, dass sie die Lage zur Werkstückoberfläche und die Lage in der Gravur genau definiert.With the formation of bulges or thickenings on a shaped as a hollow profile part insert, it is possible to position this in the die without special aids. Furthermore, a simple fixation of the inserts or pressure pipes is provided to determine, for example, the position to the storage and connection point. It must be formed on the insert or pressure tube Bulges or thickenings are arranged as support elements so that it defines the position of the workpiece surface and the position in the engraving exactly.

Wird nun der Druckgusswerkstoff in die Druckgussform eingepresst, so umgießt er das gesamte Einlegeteil mit Ausnahme der Punktauflage der Abstützelemente an der Formwand. Da die punktförmige Auflage praktisch keine Schwächung im Gefüge des Gussteils hervorruft, sind die Werte für Dichtheit und Beanspruchbarkeit wesentlich verbessert.Now, if the die-cast material is pressed into the die casting mold, it surrounds the entire insert with the exception of the point support of the support elements on the mold wall. Since the punctiform support causes virtually no weakening in the structure of the casting, the values for tightness and strength are significantly improved.

Beim Herstellen von komplizierten Strukturen bietet das erfindungsgemäße Verfahren besondere Vorteile, da die Einlegeteile - gegebenenfalls mehrteilig - vorgeformt bzw, ausgeformt werden können und positionsgenau über die als Abstützelemente ausgebildeten Ausformungen bzw. Verdickungen in der Form angeordnet werden können. Anhand von Versuchen hat sich immer wieder gezeigt, dass die Bearbeitung der Einlegeteile mit sehr hoher Genauigkeit in einfacher Weise durchgeführt werden kann, sodass bei entsprechend komplizierten Strukturen im Vergleich zu einer herkömmlichen Bearbeitung an einem fertigen Druckgussteil erhebliche Einsparungen erzielt werden können.When producing complicated structures, the method according to the invention offers particular advantages, since the inserts can be preformed or, if appropriate, formed in several parts and can be arranged in exact position over the formations or thickenings in the form of support elements. On the basis of experiments, it has been repeatedly shown that the machining of the inserts can be carried out in a simple manner with very high accuracy, so that considerable savings can be achieved with correspondingly complicated structures in comparison to conventional machining on a finished diecast part.

Durch das vollständige Umgießen des Einlegeteils werden Spiegelgrate, die beim Abstützen eines Einlegeteils in herkömmlicher Weise an Druckgussformelementen entstehen, vermieden. Damit das Einspritzen des Druckgusswerkstoffes während des Gießvorgangs verhindert wird, werden die Enden des Druckrohrs erfindungsgemäß verschlossen. Die verschlossenen und eingegossenen Druckrohrenden können nach dem Druckgießvorgang durch eine mechanische Bearbeitung leicht geöffnet werden.Due to the complete encapsulation of the insert mirror mirrors, which arise when supporting an insert in a conventional manner to Diecasting moldings avoided. Thus, the injection of the die-cast material is prevented during the casting process, the ends of the pressure tube are sealed according to the invention. The sealed and cast-in pressure tube ends can be easily opened after the die casting process by a mechanical processing.

Im Folgenden wird die Erfindung anhand mehrerer Ausführungsbeispiele näher erläutert. Es zeigen:

  • Figur 1: Einlegeteil in Form eines Druckrohres mit Ausbuchtungen/Verdickungen als Abstützelemente
  • Figur 2a: Teilquerschnitt durch die bewegliche Formhälfte eines Druckgusswerkzeuges
  • Figur 2b: Vergrößerter Teilquerschnitt nach Figur 2a im Bereich des Auswerfers
  • Figur 3: Prinzipbild zur Fixierung eines Druckrohres zwischen zwei beweglichen Formelementen
  • Figur 4: Querschnitt nach Figur 3 in einer zur Bildebene senkrechten Querschnittsfläche
In the following the invention will be explained in more detail with reference to several embodiments. Show it:
  • FIG. 1 : Insert in the form of a pressure tube with bulges / thickening as support elements
  • FIG. 2a : Partial cross section through the movable mold half of a die-casting tool
  • FIG. 2b : Enlarged partial cross section after FIG. 2a in the area of the ejector
  • FIG. 3 : Schematic diagram for fixing a pressure tube between two movable elements
  • FIG. 4 : Cross section after FIG. 3 in a cross-sectional area perpendicular to the image plane

In Figur 1 ist das Druckrohr 1 mit Ausformungen 2,3 als Beispiel für einen Öl- oder Wasserkanal in einem Motor- oder Getriebeteil dargestellt. Wie eingangs erwähnt, kann das Druckrohr 1 an seinen Enden 4, 5 vorteilhafterweise verschlossen werden, damit ein Einspritzen des Druckgusswerkstoffes während des Gießvorganges verhindert wird.In FIG. 1 For example, the pressure tube 1 with formations 2, 3 is shown as an example of an oil or water channel in a motor or transmission part. As mentioned above, the pressure tube 1 can be advantageously closed at its ends 4, 5, so that injection of the die-cast material during the casting process is prevented.

Figur 2a und b zeigt als Teilquerschnitt die bewegliche Formhälfte eines Druckgusswerkzeuges in einer Druckgießmaschine. Das Einlegerohr 1 ist nach dem Gießen Bestandteil eines Rohteiles 6. Das Einlegerohr 1 wurde vor dem Druckgießen in einem Sackloch 7 einer Formhälfte fixiert. Die bewegliche Formhälfte 8 wird nach dem Abguss aufgefahren, sodass das Rohteil 6 mit dem eingegossenen Rohr 1 entnommen werden kann.
Figur 2b verdeutlicht die Fixierung des Druckrohres 1 im Bereich eines Auswerfers 11. FIGS. 2a and b shows as a partial cross section, the movable mold half of a die-casting tool in a die casting machine. The insert tube 1 is after casting part of a blank 6. The insert tube 1 was fixed before die casting in a blind hole 7 of a mold half. The movable mold half 8 is raised after the casting, so that the blank 6 can be removed with the cast-in tube 1.
FIG. 2b illustrates the fixation of the pressure tube 1 in the region of an ejector eleventh

Die Fixierung des Druckrohres 1 wird noch einmal anhand der Figuren 3 und 4 näher erläutert. In Figur 3 ist das Druckrohr 1 als Einlegeteil zwischen einem rechten und einem linken Schieber 9,10 fixiert. Figur 4 verdeutlicht dies in Form einer Schnittzeichnung. Das Fixieren kann auch durch Einstecken bzw. Klemmen zwischen festen und beweglichen Gravurelementen erfolgen.The fixation of the pressure tube 1 is again based on the Figures 3 and 4 explained in more detail. In FIG. 3 the pressure tube 1 is fixed as an insert between a right and a left slide 9.10. FIG. 4 clarifies this in the form of a sectional drawing. The fixing can also be done by inserting or clamping between fixed and movable engraving elements.

Der äußere Umfang der im Druckrohr 1 vorhandenen Verdickung 2 dient als Punktauflage zwischen festen und beweglichen Gravurelementen und ermöglicht eine hohe Dichtheit des Gussteils sowie eine exakte Positionierung in der Wandung des Gussteils. Mindestens zwei punktförmige Auflagen sind erforderlich, damit das Druckrohr 1 stabil positioniert ist.The outer circumference of the present in the pressure tube 1 thickening 2 serves as a point support between fixed and movable engraving elements and allows a high density of the casting as well as an exact positioning in the wall of the casting. At least two punctiform supports are required so that the pressure tube 1 is stably positioned.

Die Größe und Lage der als Abstandshalter fungierenden Ausbuchtungen bzw. Verdickungen 2 werden durch die geometrische Gestalt des Gussteils im Bereich des Eingussteils bestimmt. Hierbei ist es insbesondere von Bedeutung, dass die Lage des Druckrohres 1 während des Einschießens des Metalls unter hohem Druck nicht verändert wird. Der Abstand der Abstandshalter bzw. Verdickungen 2, 3 sollte eine stabile Positionierung auf während des Druckgießens ermöglichen.The size and position of the spacers acting as spacers or thickenings 2 are determined by the geometric shape of the casting in the region of the gate. In this case, it is of particular importance that the position of the pressure tube 1 during the pouring of the metal under high pressure not is changed. The distance of the spacers or thickenings 2, 3 should allow stable positioning during die casting.

Vornehmlich werden korrosionsbeständige und fettfreie Materialien für das als Einlegeteil verwendete Druckrohr 1 eingesetzt. Die Korrosionsbeständigkeit ist dabei für die Vermeidung der Kontaktkorrosion bei längerer Lagerung des Druckrohres von Bedeutung. Die Fettfreiheit ist entscheidend für die Gussqualität.Primarily, corrosion-resistant and grease-free materials are used for the pressure tube 1 used as an insert. The corrosion resistance is important for avoiding the contact corrosion during prolonged storage of the pressure tube. The absence of grease is decisive for the casting quality.

Konstruktiv muss das Druckrohr so gestaltet bzw. dimensioniert sein, dass ein Zusammenpressen des Druckrohres während des Druckgießens verhindert wird. Hier kann auch die Materialauswahl vorteilhaft genutzt werden, wobei zu berücksichtigen ist, dass im Bereich der Ausbuchtungen und Verdickungen eine gute Umformbarkeit des Druckrohrmaterials gegeben sein muss. Spezielle hochfeste Legierungen eignen sich hier besonders für Hochdruckverfahren oder im Einsatzbereich nahe der Einspritzöffnung.Constructively, the pressure tube must be designed or dimensioned so that compression of the pressure tube is prevented during die casting. Here, the material selection can be used to advantage, it should be noted that in the region of the bulges and thickening good formability of the pressure tube material must be given. Special high-strength alloys are particularly suitable for high-pressure processes or in the area of application near the injection opening.

Zusammenfassend lässt sich feststellen, dass durch die erfindungsgemäße Verfahrensweise nicht nur die Genauigkeit bei komplizierten Strukturen, insbesondere von Motoren und Getrieben mit Öl- oder Druckleitungen verbessert wird, sondern dass infolge der vereinfachten Konstruktion ein automatisierter Fertigungsablauf unter Verwendung von Robotern und Hantierungsautomaten erleichtert wird. Dies ermöglicht wiederum eine Steigerung der Produktivität und Senkung der Herstellungskosten bei gleichzeitiger Erhöhung der Fertigungsgenauigkeit.In summary, it can be stated that the procedure according to the invention not only improves the accuracy in complicated structures, in particular of engines and transmissions with oil or pressure lines, but also facilitates an automated production process using robots and automatic handling machines as a result of the simplified design. This in turn enables an increase in productivity and reduction of manufacturing costs while increasing the manufacturing accuracy.

Die Ausführungsbeispiele zeigen Druckgussteile mit Kanälen, wie z.B. Öl- oder Wasserkanälen. Dabei wurden Druckrohre als Einlegeteile verwendet und fest im Gefüge des Druckgussteils verankert. Selbstverständlich lassen sich in ähnlicher Weise auch gegliederte Druckgussteile, wie z.B. verschiedene Hohlkammerformen mit offenen Verrippungen bzw. Versteifungen an Druckgussteilen darstellen. Wichtig ist, dass die verwendeten Hohlprofile als Einlegeteile in punktförmigem Kontakt mit der Formwand stehen und von der Druckgusslegierung eingeschlossen werden.The embodiments show die-cast parts with channels, such as e.g. Oil or water channels. Here, pressure pipes were used as inserts and anchored firmly in the structure of the diecasting. Of course, similarly structured die cast parts, such as e.g. represent different hollow chamber shapes with open ribs or stiffeners on die castings. It is important that the hollow profiles used as insert parts are in point contact with the mold wall and are enclosed by the diecasting alloy.

Claims (14)

Verfahren zum Druckgießen von gegliederten Metallgussstücken aus Aluminium bzw. Aluminiumgussstücken mit Kanälen, Druckrohren oder gegliederten Wandabschnitten in einer Druckgussform unter Verwendung von Schiebern, Gravurelementen und Einlegeteilen, wobei die Einlegeteile als offene oder geschlossene Hohlprofilteile mit Ausbuchtungen oder Verdickungen in ihrer Wandung versehen sind und wobei die Einlegeteile vor dem Gießen positioniert und fixiert werden, dadurch gekennzeichnet, dass die Einlegeteile an ihren Ausbuchtungen oder Verdickungen an punktförmigen Kontaktstellen in der Druckgussform positioniert und beim Schließen der Druckgussform zwischen den Formhälften, Schiebern oder Schiebern und Formhälften fixiert werden dass die Druckrohre vor dem Gießen verschlossen und dann vollständig vom Druckgusswerkstoff umgossen werden und anschließend die Druckrohrenden mechanisch bearbeitet und dabei offen gelegt werden.A method for die casting of articulated metal castings of aluminum or aluminum castings with channels, pressure pipes or articulated wall sections in a die using slides, engraving elements and inserts, wherein the inserts are provided as open or closed hollow profile parts with bulges or thickenings in its wall and wherein the Positioning inserts are positioned and fixed prior to casting, characterized in that the inserts are positioned at their bulges or thickenings at point contact points in the die and fixed when closing the die between the mold halves, slides or slides and mold halves that the pressure pipes closed before pouring and then completely encapsulated by the die-cast material and then the pressure tube ends machined and thereby exposed. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Einlegeteile als Druckrohre ausgebildet sind, wobei die Ausbuchtungen oder Verdickungen als umlaufende Distanzringe auf der Außenseite der Druckrohre angeordnet sind, die an den punktförmigen Kontaktstellen zwischen der festen und beweglichen Formhälfte, Schiebern oder Schiebern und Formhälften der Druckgussform positioniert werden.A method according to claim 1, characterized in that the inserts are formed as pressure pipes, wherein the bulges or thickenings are arranged as circumferential spacer rings on the outside of the pressure pipes at the point-shaped contact points between the fixed and movable mold half, slides or slides and mold halves of Die casting mold are positioned. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Druckrohr für die Ausbildung eines gegliederten Wandabschnittes im Gussstück über umlaufende Distanzringe in der Formhälfte positioniert wird und in einem Sackloch, das in der beweglichen Formhälfte der Druckgussform angeordnet ist, fixiert wird.Method according to one of the preceding claims, characterized in that the pressure tube for the formation of an articulated wall section in the casting is positioned over circumferential spacers in the mold half and in a blind hole, which is arranged in the movable mold half of the die-mold is fixed. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Druckrohr zwischen festen und beweglichen Gravurelementen, die in den Formhälften eingearbeitet sind, eingesteckt, geklemmt und/oder fixiert wird.Method according to one of the preceding claims, characterized in that the pressure tube between fixed and movable engraving elements, which are incorporated in the mold halves, inserted, clamped and / or fixed. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Material des Druckrohres und der Druck während des Gießens so aufeinander abgestimmt werden, dass die Form und Fixierung des Druckrohres in der Druckgussform während des Gießvorganges unverändert stabil bleibt.Method according to one of the preceding claims, characterized in that the material of the pressure tube and the pressure during casting are coordinated so that the shape and fixation of the pressure tube in the die remains unchanged during the casting process. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass zur Herstellung von Hohlkammer-Druckgussteilen insbesondere mit Öl- oder Wasserkanälen die Druckrohre als konturbildende Einlegeteile für die Kanäle verwendet werden, wobei die Ausbuchtungen, Verdickungen oder Distanzringe als Abstandshalter zur Positionierung der Druckrohre auf ihrer Oberfläche so verteilt sind, dass sie das Innere der Formhälften an mindestens zwei Stellen punktförmig berühren.Method according to one of the preceding claims, characterized in that for the production of hollow-chamber die-cast parts, in particular with oil or water channels, the pressure pipes are used as contour-forming inserts for the channels, wherein the bulges, thickenings or spacers as spacers for positioning the pressure pipes on its surface are distributed so that they touch the interior of the mold halves punctiform in at least two places. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1, bestehend aus einer Druckgussform mit mindestens zwei Formhälften, wobei in den Formhälften Sacklöcher, Gravuren oder andere Positionier- und Fixierflächen angeordnet sind, zwischen denen Einlegeteile in Form von offenen oder geschlossenen Hohlprofilen einbringbar sind, dadurch gekennzeichnet, dass die Hohlprofile Ausbuchtungen oder Verdickungen als Abstandshalter aufweisen, die an Positionier- und Fixierflächen der Formhälften aufliegen
dass die Hohlprofile an ihren Enden verschlossen sind, wobei die Wandungen der Hohlprofile aus einem gewalzten, stranggepressten oder gezogenen Knetwerkstoff bestehen, der dem Druck während des Gießens standhält.Device for carrying out the method according to claim 1, consisting of a die-casting mold with at least two mold halves, wherein in the mold halves blind holes, engraving or other positioning and fixing surfaces are arranged, between which inserts in the form of open or closed hollow profiles can be introduced, characterized in that the hollow profiles have protrusions or thickenings as spacers, which rest on positioning and fixing surfaces of the mold halves
that the hollow profiles are closed at their ends, wherein the walls of the hollow profiles consist of a rolled, extruded or drawn kneading material, which withstands the pressure during casting. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Hohlprofile oder Druckrohre aus einem Aluminiumwerkstoff bestehen und die Ausbuchtungen oder Verdickungen als Distanzringe in Form von Aluminiumringen oder verdickten Wandungen ausgebildet sind.Device according to one of the preceding claims, characterized in that the hollow profiles or pressure pipes made of an aluminum material and the bulges or thickenings are formed as spacers in the form of aluminum rings or thickened walls. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Druckrohr (1) als Einlegeteil zwischen zwei Schiebern (9, 10) fixierbar ist.Device according to one of the preceding claims, characterized in that the pressure tube (1) can be fixed as an insert part between two slides (9, 10). Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass zur Fixierung des Einlegeteils Sacklöcher oder Gravuren zwischen einem festen und einem beweglichen Gravurelement vorhanden sind.Device according to one of the preceding claims, characterized in that blind holes or engravings between a fixed and a movable engraving element are present for fixing the insert. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass eine Verdickung (2) im Druckrohr 1 als Punktauflage zwischen festen und beweglichen Gravurelementen dient.Device according to one of the preceding claims, characterized in that a thickening (2) in the pressure tube 1 serves as a point support between fixed and movable engraving elements. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Abstandshalter bzw. Verdickungen (2, 3) zur stabilen Positionierung des Einlegeteils während des Druckgießens in einem der mechanischen Beanspruchung entsprechenden Abstand voneinander positioniert sind.Device according to one of the preceding claims, characterized in that the spacers or thickenings (2, 3) are positioned for stable positioning of the insert during die casting in a distance corresponding to the mechanical stress. Druckgussteil mit Hohlkammern, Kanälen und/oder gegliederten Abschnitten, dadurch gekennzeichnet, dass die Wandungen der Hohlkammern, Kanäle, Druckrohre und/oder der gegliederten Abschnitte aus einem gewalzten, stranggepressten oder gezogenen Knetwerkstoff bestehen, der von einer Druckgusslegierung vollständig eingeschlossen ist.Die casting with hollow chambers, channels and / or articulated sections, characterized in that the walls of the hollow chambers, channels, pressure pipes and / or the articulated sections consist of a rolled, extruded or drawn Knetwerkstoff which is completely enclosed by a die-cast alloy. Duckgussteil nach Anspruch 13, dadurch gekennzeichnet, dass das Druckgussteil aus einem Aluminium-Gusswerkstoff und die Wandungen der Hohlkammern, Kanäle, Druckrohre und/oder gegliederten Abschnitte aus einem Aluminium-Knetwerkstoff bestehen.Duck casting according to claim 13, characterized in that the die cast part of an aluminum casting material and the walls of the hollow chambers, channels, pressure pipes and / or articulated sections consist of an aluminum wrought material.
EP08011310A 2007-06-29 2008-06-21 Method for pressure moulding of layered metal moulded pieces Not-in-force EP2008740B1 (en)

Priority Applications (1)

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PL08011310T PL2008740T3 (en) 2007-06-29 2008-06-21 Method for pressure moulding of layered metal moulded pieces

Applications Claiming Priority (1)

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DE102007030342A DE102007030342B4 (en) 2007-06-29 2007-06-29 Method and device for die casting of articulated metal castings

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EP2008740B1 EP2008740B1 (en) 2012-08-22

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DE (1) DE102007030342B4 (en)
DK (1) DK2008740T3 (en)
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HR (1) HRP20120933T1 (en)
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DE102007030342A1 (en) 2009-01-02
EP2008740B1 (en) 2012-08-22
ES2393381T3 (en) 2012-12-20
DE102007030342B4 (en) 2010-10-07
DK2008740T3 (en) 2012-12-10
HRP20120933T1 (en) 2012-12-31
PT2008740E (en) 2012-12-05
PL2008740T3 (en) 2013-01-31

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