EP2025433B1 - Cast iron component with integrated function elements - Google Patents

Cast iron component with integrated function elements Download PDF

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Publication number
EP2025433B1
EP2025433B1 EP08019322A EP08019322A EP2025433B1 EP 2025433 B1 EP2025433 B1 EP 2025433B1 EP 08019322 A EP08019322 A EP 08019322A EP 08019322 A EP08019322 A EP 08019322A EP 2025433 B1 EP2025433 B1 EP 2025433B1
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Prior art keywords
component
cast
component part
protective layer
functional elements
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German (de)
French (fr)
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EP2025433A2 (en
EP2025433A3 (en
Inventor
Thorsten MÜLLER
Franz-Josef Wöstmann
Matthias Busse
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Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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Priority to PL08019322T priority Critical patent/PL2025433T3/en
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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
    • B22D19/0081—Casting in, on, or around objects which form part of the product pretreatment of the insert, e.g. for enhancing the bonding between insert and surrounding cast metal
    • 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
    • B22D19/04—Casting in, on, or around objects which form part of the product for joining parts

Definitions

  • the present invention relates to the production of a cast component with integrated functional elements.
  • the invention enables the integration of functional elements in metallic castings (during the casting process) as a permanent core. It will be possible to extend the function of castings from individual marking to integrated load monitoring.
  • the present invention has for its object to provide a Bautell, are poured into the functional elements that are still functional even after the casting of the molten metal.
  • the components according to the invention are characterized in that they contain one or more molded-in functional elements, that the functional element is designed as RFID, and that the functional element cast into the component is completely surrounded by the molded material except for a dielectric gap.
  • the functional elements to be integrated are positioned in a mold prior to casting and encased by the molten metal during the casting process.
  • Further functional elements include adaptronic sensors and / or adaptronic actuators (eg piezoceramics) as well as temperature-sensitive functional elements.
  • These functional elements may, for example, also be electronic assemblies that are actively or passively supplied with energy, eg via induction, an integrated battery, a capacitor or via a mechanical, self-sufficient movement unit.
  • the connection to the receiver / transmitter or an external power source outside the casting can be done in particular without direct Kabeitagen (telemetry / wireless).
  • the functional elements can be integrated individually or in combination; In addition to components with integrated functional elements for component identification, sensory components and actuator components, intelligent components with integrated data acquisition, processing and control can also be produced.
  • Areas of application for the components according to the invention are, for example, highly stressed safety components whose load status and load history can be permanently detected and influenced by the functional elements contained.
  • an increased security against component failure in operation can be achieved and made a lightweight construction by adapting safety factors to the real circumstances.
  • Examples include applications in motor vehicles and aviation, such as engine blocks or chassis parts of motor vehicles or aircraft.
  • sensors can be used to detect and store the loads occurring during operation in order, for example, to detect a message at the onset of component damage, or be reported in case of overload of the component via radio or induction to the vehicle electronics.
  • actuators targeted vibrations can be introduced into the component.
  • Combination with sensors and electronic controllers can suppress component vibrations.
  • the combination with a memory module makes it possible to record the life history of the component.
  • Another area of application is the testing technology of components and component development, as forces occurring through the integration of the functional elements can be recorded and recorded directly in the component.
  • the heat input into the components to be integrated can be reduced by - especially in the areas in which functional elements are - through the mold through the heat suitable temperature control measures, such as cooling elements or heating-cooling units is dissipated.
  • an envelope made of a thermally insulating material can be made to protect the functional elements or a functional element enveloped in this manner can be used for the method according to the invention.
  • the protective layer used is preferably a compound with low thermal conductivity. Suitable protective layer materials are, in particular, plastics, ceramics or low-melting metal alloys (ie alloys whose melting point or their solidus temperature and preferably also their liquidus temperature is below the temperature above which the function elements are permanently impaired in their function by the introduced energy).
  • low-melting metal alloys e.g.
  • Alloys that contain bismuth are suitable.
  • the protective layer may dissolve in the cast molten metal (in particular a protective layer of a low-melting metal alloy) or disperse during the casting process and optionally also the solidification process (in particular if particles of the protective layer are entrained at faster flow velocities of the cast molten metal), but it can also - at least in part - remain on the surface of the functional element or decompose.
  • the layer thickness of the protective layer can, for example, by means of simulation programs based on the material thickness of the metal, which is the functional element
  • the temperature of the melt, the heat content and the heat dissipation via the mold can be calculated.
  • the layer thickness is chosen so that it is as thin as possible, since the remaining in the finished component protective layer or remnants thereof may represent undesirable "break points" in the component in unfavorable cases.
  • the protective layer can also only partially envelop the functional element-for example, only in areas which are particularly sensitive to temperature or in which, owing to the geometry of the component to be produced, greater heat input from the molten metal to be cast can be expected.
  • the sensory or actuatoric functional elements are preferably encapsulated without protective layer, since error sources can be reduced by a direct material connection between component material and sensor / actuator. If, nevertheless, a protective layer is required, then this is preferably carried out from materials with known mechanical properties, which enable a mathematical correction. In particular, ceramic layers come into question here.
  • molten metal is understood to mean any material which contains or consists of one or more metals or alloys and which can be cast with the casting methods which can be used according to the invention (that is, for example, also tixotropic materials). If melts are used which are not composed of pure metal or alloy or mixtures thereof, the proportion of the remaining aggregates (for example ceramic constituents) is preferably not more than 40%.
  • the functional elements according to the invention are positioned like conventional permanent cores in the mold cavity and then cast.
  • all methods are possible, which allow a sufficiently rapid removal of temperature.
  • hot chamber and cold chamber die casting including squeeze casting and thixocasting, should be mentioned here.
  • the gravity, low pressure and tilt or pan Kokilleng understand compiler come into consideration, since the metallic mold ensures good temperature control.
  • the thermal encapsulation according to the lower heat dissipation through the molding material must be increased or sufficient heat dissipation ensured by cooling elements.
  • RFIDs and piezoceramics have been positioned in the cavity of the die using a mold adapted holder.
  • the insert was chosen so that it is not crazy or destroyed by the fast flowing metal.
  • the areas in the component which are suitable for receiving an insert, are to be selected individually depending on the component geometry and the gates. If a specific position is specified, design changes may have to be made to the gate or component geometry. In the present case, the RFIDs and piezoceramics were used at the positions that the Figures 2 to 4 can be found, shed.
  • the mold was closed and the shot fired. The mold filling took place within 25 ms.
  • the casting was cooled immediately after removal from the mold with air or water; the functional elements were fully functional and could be used as intended.

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  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Soft Magnetic Materials (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Glass Compositions (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Semiconductor Integrated Circuits (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Braking Arrangements (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

In a process to fabricate a cast metal component with integral functional elements e.g. sensors or temperature-sensitive functional elements, the heat-screened element is pre-positioned within a casting form cavity. The metal is then cast in the conventional way. The position of the form is so chosen that the flow speed of liquid metal is low in the vicinity of the functional element. Also claimed is a suitable cast assembly.

Description

Die vorliegende Erfindung betrifft die Herstellung eines Gussbauteils mit integrierten Funktionselementen. Die Erfindung ermöglicht die Integration von Funktionselementen in metallische Gussteile (während des Gießprozesses) als Permanentkern. Es wird die Möglichkeit eröffnet, die Funktion von Gussstücken von der individuellen Kennzeichnung bis hin zur integrierten Belastungsüberwachung zu erweitern.The present invention relates to the production of a cast component with integrated functional elements. The invention enables the integration of functional elements in metallic castings (during the casting process) as a permanent core. It will be possible to extend the function of castings from individual marking to integrated load monitoring.

Aus der Veröffentlichung " Remote Identification of Metal Castings V.106, No 98-044, pp. 605-608 aus Transactions, American Foundrymen's Socienty " geht hervor, dass RF-Tags mit verschiedenen Feuerschutzschichten versehen sowie anschließend in einer Gussform platziert und im Sandgussverfahren in Aluminium eingegossen werden. Dabei werden diese RF-Tags unmittelbar unter der Bauteiloberfläche positioniert. Damit ein Auslesen der RF-Tags ermöglicht ist, wird die dem RF-Tag zugeordnete Bauteiloberfläche mechanisch bearbeitet.From the publication " Remote Identification of Metal Castings V.106, No 98-044, pp. 605-608 from Transactions, American Foundrymen's Socienty "It turns out that RF tags are provided with different layers of fire protection, then placed in a mold and sand cast in aluminum, positioning these RF tags just below the surface of the component If the RF tags are read out, the component surface assigned to the RF tag is mechanically processed.

Aus der Veröffentlichung "The 28th Conference on Senior Engineering Design Projects" (www.wmich.edu/engineer/sdp_28th-04.htm) geht unter der Überschrift "Remote Identification and Fiber Optic Sensing of Metal Casting" hervor, dass ein Minimumwert für ein feuerfestes Material zum Schutz von RFID und Faserglaskabeln in Gussbauteilen während dem Eingießen bestimmt werden. Dies hat das Ziel, die Funktionsfähigkeit von eingegossenen RFIDs und faseroptischen Kabeln zu testen, die vollständig in das gegossene Bauteil eingebunden sind.From the publication "The 28th Conference on Senior Engineering Design Projects" (www.wmich.edu/engineer/sdp_28th-04.htm) under the heading "Remote Identification and Fiber Optic Sensing of Metal Casting" it is apparent that a minimum value for a refractory material for protecting RFID and fiberglass cables in cast components during pouring. The goal is to test the functionality of embedded RFIDs and fiber optic cables that are fully integrated into the molded part.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Bautell anzugeben, in dem Funktionselemente eingegossen sind, die auch nach dem Vergießen der Metallschmelze noch funktionstüchtig sind.The present invention has for its object to provide a Bautell, are poured into the functional elements that are still functional even after the casting of the molten metal.

Diese Aufgabe wird durch das Bauteil nach Anspruch 1 gelöst. Unteransprüche geben vorteilhafte Weiterbildungen an. Anspruch 4 lehrt eine vorteilhafte Verwendung der erfindungsgemäßen Bauteile.This object is achieved by the component according to claim 1. Subclaims indicate advantageous developments. Claim 4 teaches an advantageous use of the components according to the invention.

Die erfindungsgemäßen Bauteile zeichnen sich dadurch aus, dass sie ein oder mehrere eingegossene Funktionselemente enthalten, dass das Funktionselement als RFID ausgebildet ist, und dass das in das Bauteil eingegossene Funktionselement vollständig bis auf einen dielektrischen Spalt vom vergossenen Material umgeben ist. Die zu integrierenden Funktionselemente werden vor dem Abguss in einer Gussform positioniert und während des Gießvorgangs durch die Metallschmelze umhüllt.The components according to the invention are characterized in that they contain one or more molded-in functional elements, that the functional element is designed as RFID, and that the functional element cast into the component is completely surrounded by the molded material except for a dielectric gap. The functional elements to be integrated are positioned in a mold prior to casting and encased by the molten metal during the casting process.

Als Funktionselemente kommen des weiteren adaptronischen Sensoren und/oder adaptronischen Aktoren (z. B. Piezokeramiken) sowie temperaturempfindliche Funktionselemente in Betracht. Diese Funktionselemente können beispielsweise auch elektronische Baugruppen sein, die aktiv oder passiv mit Energie versorgt werden, z.B. über Induktion, eine integrierte Batterie, einen Kondensator oder über eine mechanische, autarke Bewegungseinheit. Die Verbindung zum Empfänger/Sender oder einer externen Energiequelle außerhalb des Gussstückes kann dabei insbesondere ohne direkte Kabeiverbindung (telemetrisch/wireless) erfolgen.Further functional elements include adaptronic sensors and / or adaptronic actuators (eg piezoceramics) as well as temperature-sensitive functional elements. These functional elements may, for example, also be electronic assemblies that are actively or passively supplied with energy, eg via induction, an integrated battery, a capacitor or via a mechanical, self-sufficient movement unit. The connection to the receiver / transmitter or an external power source outside the casting can be done in particular without direct Kabeiverbindung (telemetry / wireless).

Die Funktionselemente können einzeln oder in Kombination integriert werden; neben Bauteilen mit integrierten Funktionselementen für eine Bauteilidentifizierung, sensorischen Bauteilen und aktorischen Bauteilen sind auch intelligente Bauteile mit integrierter Datenerfassung, Verarbeitung und Regelung herstellbar.The functional elements can be integrated individually or in combination; In addition to components with integrated functional elements for component identification, sensory components and actuator components, intelligent components with integrated data acquisition, processing and control can also be produced.

Einsatzgebiete für die erfindungsgemäßen Bauteile sind zum Beispiel hochbelastete Sicherheitsbauteile, deren Belastungszustand und Belastungsgeschichte mit den enthaltenen Funktionselementen permanent erfasst und beeinflusst werden kann. Damit kann eine erhöhte Sicherheit gegen Bauteilversagen im Betrieb erzielt werden und ein Leichtbau durch Anpassung von Sicherheitsfaktoren an die realen Umstände erfolgen. Als Beispiele sind Anwendungen in Kraftfahrzeugen und der Luftfahrt zu nennen, etwa Motorblöcke oder Fahrwerksteile von Kraftfahrzeugen oder Flugzeugen. Hier können mit Sensoren die im Betrieb aufkommenden Belastungen erfasst und gespeichert werden, um z.B. eine Meldung bei einsetzender Bauteilschädigung, oder bei Überlastung des Bauteils über Funk oder Induktion an die Fahrzeugelektronik gemeldet werden. Bei Einsatz von Aktoren können gezielt Schwingungen in das Bauteil eingebracht werden. Durch Kombination mit Sensoren und elektronischen Reglern lassen sich dadurch Bauteilschwingungen unterdrücken. Durch die Kombination mit einem Speichermodul wird es möglich die Lebensgeschichte des Bauteils zu erfassen.Areas of application for the components according to the invention are, for example, highly stressed safety components whose load status and load history can be permanently detected and influenced by the functional elements contained. Thus, an increased security against component failure in operation can be achieved and made a lightweight construction by adapting safety factors to the real circumstances. Examples include applications in motor vehicles and aviation, such as engine blocks or chassis parts of motor vehicles or aircraft. Here sensors can be used to detect and store the loads occurring during operation in order, for example, to detect a message at the onset of component damage, or be reported in case of overload of the component via radio or induction to the vehicle electronics. When using actuators targeted vibrations can be introduced into the component. Combination with sensors and electronic controllers can suppress component vibrations. The combination with a memory module makes it possible to record the life history of the component.

Ein weiteres Anwendungsgebiet ist die Prüftechnik von Bauteilen und die Bauteilentwicklung, da durch die Integration der Funktionselemente auftretende Kräfte direkt im Bauteil erfasst und aufgezeichnet werden können.Another area of application is the testing technology of components and component development, as forces occurring through the integration of the functional elements can be recorded and recorded directly in the component.

Zur Vermeidung einer Beschädigung der zu integrierenden Elemente durch einen zu hohen Wärmeeintrag stehen - falls erforderlich - verschiedene Möglichkeiten entsprechend der eingesetzten Elemente zur Auswahl.To avoid damage to the elements to be integrated by an excessive heat input are - if necessary - different options according to the elements used for selection.

Funktionselemente, die von Haus aus eine hohe kurzzeitige Temperaturbelastung tolerieren, insbesondere elektronische oder piezoelektrische Elemente, können mit dem erfindungsgemäßen Verfahren üblicherweise direkt ohne weitere Maßnahmen eingegossen werden.Functional elements that inherently tolerate a high short-term temperature load, in particular electronic or piezoelectric Elements can usually be cast directly without further measures by the method according to the invention.

Sind die Spitzentemperaturen, wie sie z.B. beim Aluminium- und Magnesiumguss auftreten, zu hoch oder ist die Temperaturempfindlichkeit des einzugießenden Funktionselements zu groß, so kann der Wärmeeintrag in die zu integrierenden Komponenten reduziert werden, indem - insbesondere in den Bereichen, in denen sich Funktionselemente befinden - über die Gießform die Wärme durch geeignete Temperierungsmaßnahmen, wie Kühlelemente oder Heiz-Kühlgeräte abgeführt wird.Are the peak temperatures, as they are e.g. occur in aluminum and magnesium casting, too high or the temperature sensitivity of the einzugießenden functional element is too large, the heat input into the components to be integrated can be reduced by - especially in the areas in which functional elements are - through the mold through the heat suitable temperature control measures, such as cooling elements or heating-cooling units is dissipated.

Alternativ oder zusätzlich kann zum Schutz der Funktionselemente eine Umhüllung aus einem thermisch isolierenden Material (thermische Kapselung) vorgenommen werden bzw. ein derartig umhülltes Funktionselement für das erfindungsgemäße Verfahren verwendet werden. Hierdurch wird der Wärmeeintrag in die zu integrierenden Elemente unter die max. zulässige Wärmemenge reduziert. Als Schutzschicht wird bevorzugt eine Masse mit geringer Wärmeleitfähigkeit eingesetzt. Geeignete Schutzschichtmaterialien sind insbesondere Kunststoff, Keramik oder niedrigschmelzende Metalllegierungen (d.h. Legierungen deren Schmelzpunkt bzw. deren Solidustemperatur und bevorzugt auch deren Liquidustemperatur unterhalb der Temperatur liegt, ab der die Funktionselemente in ihrer Funktion durch die eingebrachte Energie dauerhaft beeinträchtigt werden). Als niedrigschmelzende Metalllegierungen sind z.B.Alternatively or additionally, an envelope made of a thermally insulating material (thermal encapsulation) can be made to protect the functional elements or a functional element enveloped in this manner can be used for the method according to the invention. As a result, the heat input into the elements to be integrated below the max. permitted amount of heat reduced. The protective layer used is preferably a compound with low thermal conductivity. Suitable protective layer materials are, in particular, plastics, ceramics or low-melting metal alloys (ie alloys whose melting point or their solidus temperature and preferably also their liquidus temperature is below the temperature above which the function elements are permanently impaired in their function by the introduced energy). As low-melting metal alloys, e.g.

Legierungen, die Bismut (bevorzugt mehr als 50 Gew.-%) enthalten geeignet. Die Schutzschicht kann sich während des Gussvorgangs und gegebenenfalls auch des Erstarrungsvorgangs in der vergossenen Metallschmelze auflösen (insbesondere eine Schutzschicht aus einer niedrigschmelzenden Metalllegierung) oder dispergieren (insbesondere wenn bei schnelleren Strömungsgeschwindigkeiten der vergossenen Metallschmelze Partikel der Schutzschicht mitgerissen werden), sie kann aber auch - zumindest zum Teil - auf der Oberfläche des Funktionselements verbleiben oder sich zersetzen.Alloys that contain bismuth (preferably more than 50 wt .-%) are suitable. The protective layer may dissolve in the cast molten metal (in particular a protective layer of a low-melting metal alloy) or disperse during the casting process and optionally also the solidification process (in particular if particles of the protective layer are entrained at faster flow velocities of the cast molten metal), but it can also - at least in part - remain on the surface of the functional element or decompose.

Die Schichtdicke der Schutzschicht kann z.B. mittels Simulationsprogrammen anhand der Materialdicke des Metalls, das das Funktionselement umgibt, der Temperatur der Schmelze, dem Wärmeinhalt und der Wärmeabfuhr über die Gussform berechnet werden. Bevorzugt wird die Schichtdicke dabei so gewählt, dass sie möglichst dünn ist, da die im fertigen Bauteil verbleibende Schutzschicht bzw. Reste hiervon in ungünstigen Fällen unerwünschte "Sollbruchstellen" im Bauteil darstellen können. Die Schutzschicht kann das Funktionselement auch nur teilweise umhüllen - etwa nur in Bereichen, die besonders temperaturempfindlich sind oder in denen aufgrund der Geometrie des herzustellenden Bauteils ein größerer Wärmeeintrag aus der zu vergießenden Metallschmelze zu erwarten ist.The layer thickness of the protective layer can, for example, by means of simulation programs based on the material thickness of the metal, which is the functional element The temperature of the melt, the heat content and the heat dissipation via the mold can be calculated. Preferably, the layer thickness is chosen so that it is as thin as possible, since the remaining in the finished component protective layer or remnants thereof may represent undesirable "break points" in the component in unfavorable cases. The protective layer can also only partially envelop the functional element-for example, only in areas which are particularly sensitive to temperature or in which, owing to the geometry of the component to be produced, greater heat input from the molten metal to be cast can be expected.

Die sensorischen oder aktorischen Funktionselemente werden aber bevorzugt ohne Schutzschicht vergossen, da durch einen direkten Stoffschluss zwischen Bauteilmaterial und Sensor/Aktor Fehlerquellen reduziert werden können. Wird dennoch eine Schutzschicht benötigt, so wird diese bevorzugt aus Materialien mit bekannten mechanischen Eigenschaften ausgeführt, die eine rechnerische Korrektur ermöglichen. Hier kommen insbesondere keramische Schichten in Frage.However, the sensory or actuatoric functional elements are preferably encapsulated without protective layer, since error sources can be reduced by a direct material connection between component material and sensor / actuator. If, nevertheless, a protective layer is required, then this is preferably carried out from materials with known mechanical properties, which enable a mathematical correction. In particular, ceramic layers come into question here.

Unter Metallschmelze wird erfindunggemäß jedes Material verstanden, das ein oder mehrere Metalle bzw. Legierungen enthält oder aus diesen besteht und das mit den erfindungsgemäß anwendbaren Gießverfahren vergießbar ist (also z.B. auch tixotrope Materialien). Werden Schmelzen eingesetzt, die nicht aus reinem Metall bzw. Legierung oder Gemischen hieraus besteht, so beträgt der Anteil der restlichen Zuschlagstoffe (z.B. keramische Bestandteile) bevorzugt nicht mehr als 40%.According to the invention, molten metal is understood to mean any material which contains or consists of one or more metals or alloys and which can be cast with the casting methods which can be used according to the invention (that is, for example, also tixotropic materials). If melts are used which are not composed of pure metal or alloy or mixtures thereof, the proportion of the remaining aggregates (for example ceramic constituents) is preferably not more than 40%.

Die erfindungsgemäßen Funktionselemente werden wie herkömmliche Permanentkerne in der Formkavität positioniert und anschließend vergossen. Als Gießverfahren kommen alle Verfahren in Betracht, die eine hinreichend schnelle Temperaturabfuhr ermöglichen. Hier ist insbesondere der Warmkammer- und Kaltkammerdruckguss, einschließlich des Squeeze Casting und Thixocasting zu nennen. Ebenso kommen die Schwerkraft-, Niederdruck- und Kipp- oder Schwenk-Kokillengießverfahren für den Einsatz in Betracht, da durch die metallische Form eine gute Temperierung gewährleistet ist. Für den Einsatz in konventionellen Sandgussverfahren, wie dem hand- oder maschinengeformten Schwerkraft- und Niederdrucksandgussverfahren, wie dem Kernpaketverfahren, dem Vollformgießverfahren und dem Lost Foam-Verfahren muss die thermische Kapselung entsprechend der geringeren Wärmeabfuhr über den Formstoff erhöht werden oder eine ausreichende Wärmeabfuhr durch Kühlelemente gewährleistet sein.The functional elements according to the invention are positioned like conventional permanent cores in the mold cavity and then cast. As casting process, all methods are possible, which allow a sufficiently rapid removal of temperature. In particular, hot chamber and cold chamber die casting, including squeeze casting and thixocasting, should be mentioned here. Likewise, the gravity, low pressure and tilt or pan Kokillengießverfahren come into consideration, since the metallic mold ensures good temperature control. For use in conventional Sand casting methods, such as the hand or machine-formed gravity and Niederdrucksandgussverfahren, such as the core package process, the Vollformgießverfahren and the lost foam process, the thermal encapsulation according to the lower heat dissipation through the molding material must be increased or sufficient heat dissipation ensured by cooling elements.

Im Folgenden wird - ohne Einschränkung der Allgemeinheit - das erfindungsgemäße Bauteil näher anhand von Abbildungen und einem Beispiel erläutert. Es zeigen:

Figur 1:
Musterbauteil (1) ohne eingegossene Funktionselemente
Figur 2:
Musterbauteil (1) mit RFID (2) und dielektrischem Spalt (3)
Figur 2a:
Detailansicht von Figur 2
Figur 3:
Musterbauteil mit Piezokeramik(4), Elektronik (6) und RFID (2)
In the following - without limiting the generality - the component according to the invention is explained in more detail with reference to figures and an example. Show it:
FIG. 1:
Sample component (1) without embedded functional elements
FIG. 2:
Sample component (1) with RFID (2) and dielectric gap (3)
FIG. 2a:
Detail view of FIG. 2
FIG. 3:
Sample component with piezoceramic (4), electronics (6) and RFID (2)

Beispiel:Example:

Durchgeführt wurde das Gussverfahren zur Herstellung eines Bauteils gemäß Figur 2 bis 3 auf einer Kaltkammer-Druckgießmaschine vom Typ Bühler SC/N 66. Als Gießwerkstoff kam AlSi9Cu3 zum Einsatz.Was carried out the casting process for the production of a component according to FIGS. 2 to 3 on a cold chamber die casting machine of the type Bühler SC / N 66. The casting material used was AlSi9Cu3.

Es wurden RFIDs und Piezokeramiken mit einem der Form angepassten Halter in der Kavität der Druckgussform positioniert. Der Einsatz wurde so gewählt, dass er nicht durch das schnell anströmende Metall verrückt oder zerstört wird.RFIDs and piezoceramics have been positioned in the cavity of the die using a mold adapted holder. The insert was chosen so that it is not crazy or destroyed by the fast flowing metal.

Die Bereiche im Bauteil, die für die Aufnahme eines Einlegeteils geeignet sind, sind individuell in Abhängigkeit der Bauteilgeometrie sowie der Anschnitte zu wählen. Ist eine bestimmte Position vorgegeben, müssen ggf. konstruktive Änderungen an Anschnitt bzw. Bauteilgeometrie vorgenommen werden. Im vorliegenden Fall wurden die RFIDs und Piezokeramiken an den Positionen, die den Figuren 2 bis 4 zu entnehmen sind, vergossen.The areas in the component, which are suitable for receiving an insert, are to be selected individually depending on the component geometry and the gates. If a specific position is specified, design changes may have to be made to the gate or component geometry. In the present case, the RFIDs and piezoceramics were used at the positions that the Figures 2 to 4 can be found, shed.

Nach der Positionierung der Funktionselemente wurde die Form geschlossen und der Schuss ausgelöst. Die Formfüllung erfolgte innerhalb von 25 ms. Das Gusstück wurde sofort nach der Entnahme aus der Form mit Luft oder Wasser abgekühlt; die Funktionselemente waren voll funktionstüchtig und konnten bestimmungsgemäß verwendet werden.After positioning the functional elements, the mold was closed and the shot fired. The mold filling took place within 25 ms. The casting was cooled immediately after removal from the mold with air or water; the functional elements were fully functional and could be used as intended.

Claims (5)

  1. Metal component part (1) produced by means of a casting process and containing one or more function elements (2),
    wherein the function element (2) is configured as RFID,
    characterised in that the function element (2) cast into the component part (1) is completely surrounded by cast metal except for a dielectric gap (3).
  2. Component part according to claim 1, characterised in that the function element (2) is provided for a component identification or comprises intelligent components with integrated data capture, processing and control.
  3. Component part according to claim 1, characterised in that a thermally insulating protective layer or the residues of a thermally insulating protective layer are provided at least partially between the function element (2) and the cast metal.
  4. Component part according to claim 1, characterised in that the protective layer is made from a plastic or a ceramic or a low-melt metal alloy.
  5. Use of a component part according to claims 1 to 4 in motor vehicles or in aviation, in particular in engine blocks or running gear.
EP08019322A 2004-10-08 2005-10-10 Cast iron component with integrated function elements Active EP2025433B1 (en)

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DE102005018936A DE102005018936A1 (en) 2004-10-08 2005-04-22 Cast component with integrated functional elements and process for its production
EP05022013A EP1645350B1 (en) 2004-10-08 2005-10-10 Casting with integrated functional elements and manufacturing process

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DE102015102308A1 (en) * 2015-02-18 2016-08-18 Nemak, S.A.B. De C.V. Method for marking a casting
EP3064293A1 (en) 2015-03-03 2016-09-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Casting, method for its preparation and casting tool for producing the casting

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DE202006021040U1 (en) * 2006-11-17 2012-06-25 Siemens Aktiengesellschaft Cast component with a marker and a group of components
PL2151875T3 (en) 2008-08-07 2015-03-31 Fraunhofer Ges Forschung Method and device for manufacturing a component with an integrated insert section
DE102010046170A1 (en) * 2010-09-23 2012-03-29 Hal Aluminiumguss Leipzig Gmbh Cast component with a core comprises a heat-resistant molded identifying means providing an automatic identification and/or localization of the component by an identifying and locating system
DE102010050970A1 (en) * 2010-11-10 2012-05-10 Daimler Ag Motor vehicle component comprises a fiber reinforced plastic semi-finished product, a portion of which is surrounded by a light metal cast part, where a surface of the portion of the product comprises a thermally insulating layer
DE102011015799A1 (en) 2011-04-01 2012-10-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Casting mold for producing a cast body
DE102015106002A1 (en) 2015-04-20 2016-10-20 Gottfried Wilhelm Leibniz Universität Hannover Electrical component, construction component of a technical object and method for its production
DE202017107664U1 (en) 2017-12-15 2018-02-08 Lübbers Anlagen- und Umwelttechnik GmbH Boiler room for providing a heat and spray dryer for drying a material to be dried
DE102018210138A1 (en) 2018-06-21 2019-12-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Labeling element for a metal casting and process for its manufacture
DE102018218773A1 (en) 2018-11-02 2020-05-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Cast component with sensor for detecting mechanical loads and / or deformations and device for detecting mechanical loads and / or deformations in a cast component
DE102020129793A1 (en) * 2019-11-22 2021-05-27 Phoenix Contact Gmbh & Co. Kg Apparatus and method for die casting metal
DE102020129794A1 (en) * 2019-11-22 2021-05-27 Phoenix Contact Gmbh & Co. Kg Apparatus and method for die casting metal

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DE19814018A1 (en) * 1998-03-28 1999-09-30 Andreas Roosen Ceramic-polymer, ceramic-ceramic or ceramic-metal composite, e.g. a piezoceramic-polymer composite for an ultrasonic transducer
DE19937934A1 (en) * 1999-08-11 2001-02-15 Bayerische Motoren Werke Ag Cylinder crankcase, method for manufacturing the cylinder liners therefor and method for manufacturing the cylinder crankcase with these cylinder liners
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DE10153306B4 (en) * 2001-10-31 2010-07-15 Daimler Ag Method for pouring an insert
CN1300365C (en) * 2003-08-22 2007-02-14 周照耀 Functional compositematerial and preparing method thereof

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DE102015102308A1 (en) * 2015-02-18 2016-08-18 Nemak, S.A.B. De C.V. Method for marking a casting
US10052686B2 (en) 2015-02-18 2018-08-21 Nemak, S.A.B. De C.V. Method for identifying a cast part
EP3064293A1 (en) 2015-03-03 2016-09-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Casting, method for its preparation and casting tool for producing the casting
DE102015203797A1 (en) 2015-03-03 2016-09-08 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Casting, process for its production and casting tool for the production of the cast body

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DE102005018936A1 (en) 2006-04-20
DE202005021246U1 (en) 2007-08-23
SI1645350T1 (en) 2009-10-31
DE502005007494D1 (en) 2009-07-30
EP2025433A2 (en) 2009-02-18
PL1645350T3 (en) 2009-11-30
EP1645350B1 (en) 2009-06-17
EP1645350A1 (en) 2006-04-12
ATE433811T1 (en) 2009-07-15
EP2025433A3 (en) 2009-08-05
DK1645350T3 (en) 2009-10-12
PL2025433T3 (en) 2012-12-31

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