WO2013041729A1 - Method for producing components from mmcs (metal matrix composites) using a powder that has been melt-atomised in an inert gas atmosphere - Google Patents

Method for producing components from mmcs (metal matrix composites) using a powder that has been melt-atomised in an inert gas atmosphere Download PDF

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Publication number
WO2013041729A1
WO2013041729A1 PCT/EP2012/068801 EP2012068801W WO2013041729A1 WO 2013041729 A1 WO2013041729 A1 WO 2013041729A1 EP 2012068801 W EP2012068801 W EP 2012068801W WO 2013041729 A1 WO2013041729 A1 WO 2013041729A1
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Prior art keywords
particles
powder
weight
metal
aluminum
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PCT/EP2012/068801
Other languages
German (de)
French (fr)
Inventor
Thomas Dickmann
Bernd Commandeur
Dirk Krogmann
Gero Sinha
Ralf PELMER
Claudia NAGEL
Andreas Storz
Holger Weiss
Original Assignee
Peak-Werkstoff Gmbh
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Application filed by Peak-Werkstoff Gmbh filed Critical Peak-Werkstoff Gmbh
Priority to EP12761747.0A priority Critical patent/EP2758195A1/en
Priority to KR1020147009366A priority patent/KR20140064940A/en
Priority to JP2014531266A priority patent/JP2015508446A/en
Priority to US14/346,487 priority patent/US20150217373A1/en
Publication of WO2013041729A1 publication Critical patent/WO2013041729A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02—Compacting only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/14—Both compacting and sintering simultaneously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C22C1/026—Alloys based on aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/0408—Light metal alloys
    • C22C1/0416—Aluminium-based alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/10—Alloys containing non-metals
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/10—Alloys containing non-metals
    • C22C1/1036—Alloys containing non-metals starting from a melt
    • C22C1/1042—Alloys containing non-metals starting from a melt by atomising
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/02—Alloys based on aluminium with silicon as the next major constituent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/12—Discs; Drums for disc brakes
    • F16D65/125—Discs; Drums for disc brakes characterised by the material used for the disc body
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
    • C22C49/14—Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00—Materials; Production methods therefor
    • F16D2200/0004—Materials; Production methods therefor metallic
    • F16D2200/0026—Non-ferro
    • F16D2200/003—Light metals, e.g. aluminium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00—Materials; Production methods therefor
    • F16D2200/0082—Production methods therefor

Definitions

  • the invention relates to a method for the production of components using an under inert gas atmosphere melt - atomized powder of an aluminum or Al alloy with integrated hard materials, in particular of MMCs (metal matrix composite materials) and a component or semifinished product produced by the method.
  • MMCs metal matrix composite materials
  • the M C particles are introduced during the casting of the casting into the liquid Al melt (Duralcan process)
  • the invention is therefore based on the object to provide a method by which a component or semifinished product is produced in which the reinforcing particles are firmly and homogeneously bound in the globular powder particles produced by melt-spraying, and no subsequent consolidation processes ⁇ eg rolling Forging or extrusion) are required.
  • This object is achieved according to the invention in that the molten and atomized metal, in particular aluminum or Al alloys, are added during the spraying process or subsequently reinforcing particles.
  • metal (in particular Al) MMC powder particles are produced, in which the reinforcing particles are firmly and homogeneously incorporated.
  • MMC particles are added to the aluminum or Al alloy powder previously produced by melt-atomization after sieving and homogeneously mixed with it.
  • the powder particles are subsequently compacted to produce a component or semifinished product by means of a PLC process.
  • the MMC hard material distribution is likewise very homogeneous in the component produced therefrom, which has a positive effect essentially on the microstructure and mechanical properties of this component or of the semifinished product.
  • metal particles from an overspray are used, these are adjusted by sieving to a particle size spectrum ⁇ 250 ⁇ m before mixing with the reinforcing particles.
  • the above-mentioned metal, aluminum or Al alloy, to which the reinforcing particles are supplied consists for example of a hypereutectic aluminum alloy with a silicon content of 5 to 25 wt.%, An iron content! from 2 to 10% by weight, a nickel content of 2 to 5% by weight, a manganese content of 0 to 3% by weight and a magnesium content of 0 to 1% by weight, the balance being aluminum.
  • the MMC or hard material particles used advantageously have a size of 1 to 50 ⁇ m.
  • the MMC powder particles with a size of less than or equal to 250 ⁇ m, produced by the previously described method, are used.
  • the invention relates both to the method as described above, as well as to the method close to the final dimensions produced components or semi-finished products, in particular those that have to endure high mechanical and or thermal stresses.
  • Such components are, for example, brake discs or friction rings for vehicles, which can be produced advantageously with the method according to the invention.
  • a brake disk or friction ring may be a mono disk, a ventilated disk produced by inserts or slides, or a ventilated disk constructed in several parts.
  • a brake disk or friction ring in the structure of the structure can be graded axially and / or radially in accordance with the stress, ie the composition is distributed in terms of stress with respect to the MMC component during manufacture over the component cross section, as shown in FIG.
  • a grading can also be achieved by additionally applying to a homogeneous base body as a support a stress-oriented MMC powder by the S PS process as a functional layer, as shown in FIG.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Physics & Mathematics (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Braking Arrangements (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Forging (AREA)

Abstract

The invention relates to a method for producing components using a powder that has been melt-atomised in an inert gas atmosphere from an aluminium or Al alloy with integrated hard materials, in particular from MMCs (metal matrix composites), reinforcing particles being added to the molten and atomised metal, in particular aluminium or an aluminium alloy, during or consecutive to the spraying process, and subsequently the powder particles being compressed by way of an SPS method in order to produce a component or a semi-finished product.

Description

B E S C H R E I B U N G  DESCRIPTION
Verfahren zur Herstellung von Bauteilen aus M C's (Metallmatrix - Verbundwerkstoffen) mit einem unter Inertgasatmosphäre Process for producing components of M Cs (metal matrix composite materials) under an inert gas atmosphere
schmelzverdüsten Pulver melt-atomized powder
Die Erfindung betrifft ein Verfahren zur Herstellung von Bauteilen unter Verwendung eines unter inertgasatmosphäre schmelzverdüsten Pulvers aus einer Aluminium oder AI-Legierung mit integrierten Hartstoffen, insbesondere aus MMC's (Metallmatrix - Verbundwerkstoffen) und ein nach dem Verfahren hergestelltes Bauteil oder Halbzeug. The invention relates to a method for the production of components using an under inert gas atmosphere melt - atomized powder of an aluminum or Al alloy with integrated hard materials, in particular of MMCs (metal matrix composite materials) and a component or semifinished product produced by the method.
Es ist bekannt, Bauteile aus Metallen wie Aluminium (AI) oder AI- Legierungen durch Sprühkompaktieren herzustellen. Beim Sprühkompaktieren werden Schmelzen in einer Inertgasatmosphäre (z.B. Stickstoff) verdüst und auf ein Target abgeschieden. Vorteile dieses Verfahrens sind die extrem hohen Abkühlraten und die Möglichkeit auch hypereutektische Legierungen herzustellen. Derartige Verfahren sind beispielweise in der EP 0198613, der EP 0200349, der EP 0574458 und der EP 0517882 beschrieben. It is known to produce components of metals such as aluminum (Al) or Al alloys by spray compacting. In spray compacting, melts are atomized in an inert gas atmosphere (e.g., nitrogen) and deposited on a target. Advantages of this process are the extremely high cooling rates and the possibility to produce hypereutectic alloys. Such methods are described, for example, in EP 0198613, EP 0200349, EP 0574458 and EP 0517882.
Bei diesen Verfahren ist es ebenso bekannt, zur Verstärkung keramische Partikel wie SiC, B4C oder Al203 zuzufügen, um so ein MMC-Halbzeug zu erzeugen. In dem so erzeugten Gefüge liegen die Partikel der Komponenten (z. B. SiC und Ai) innig verbunden vor. Bei diesem Verfahren wird neben dem Halbzeug auch sogenanntes Overspray erzeugt weiches dem Prozess wieder zugeführt werden kann (Reinjektion) oder als Nebenprodukt weiter behandelt werden kann. In these methods, it is also known to add for reinforcement ceramic particles such as SiC, B 4 C or Al 2 O 3 so as to produce a MMC semi-finished product. In the structure thus produced, the particles of the components (eg SiC and Ai) are intimately connected. In this process, in addition to the semifinished product, so-called overspray is produced which can be fed back to the process (reinjection) or further treated as a by-product.
Alternativ werden die M C-Partikel während des Gießens des Gußkörpers in die flüssige AI-Schmelze eingebracht (Duralcan Verfahren) Alternatively, the M C particles are introduced during the casting of the casting into the liquid Al melt (Duralcan process)
Beim ebenfalls bekannten SPS (Spark-Plasma-Sintern)-Verfahren werden Pulver oder Pulvergemische verdichtet, wodurch eine für den Anwendungszweck idealerweise optimale Gefügedichte der Partikel im erzeugten Werkstück oder Halbzeug erzeugt wird. In the likewise known SPS (Spark Plasma Sintering) method, powders or powder mixtures are compacted, whereby an optimum, ideally ideal, structure density of the particles in the produced workpiece or semifinished product is produced.
Nachteilig beim Stand der Technik (Pulvergemisch) ist einerseits die nicht vollständige Verbindung zwischen Verstärkungspartikel und Matrix, andererseits die nicht gewährleistete vollständige Homogenität des Gemisches. Beides wirkt sich nachteilig auf die mechanische Beanspruchbarkeit des mit dem Gemisch erzeugten Bauteiles, beispielweise einer Bremsscheibe, aus. Eine nachträgliche Konsolidierung {z.B. Walzen, Schmieden oder Extrusion) ist hierbei noch zusätzlich erforderlich um prozessbedingte Restporositäten abzustellen und stabile Kennwerte einzustellen und somit stabile mechanische Kennwerte einzustellen. A disadvantage of the prior art (powder mixture) on the one hand, the incomplete connection between the reinforcing particle and matrix, on the other hand, the not guaranteed complete homogeneity of the mixture. Both have a disadvantageous effect on the mechanical strength of the component produced with the mixture, for example a brake disk. Subsequent consolidation {e.g. Rolling, forging or extrusion) is hereby additionally required to eliminate process-related residual porosity and to set stable characteristics and thus to set stable mechanical characteristics.
Der Erfindung liegt daher die Aufgabe zu Grunde, ein Verfahren bereit zu stellen, mit dem ein Bauteil oder Halbzeug hergestellt wird, bei dem die Verstärkungs-Partikei fest und homogen in dem durch Schmelzverdüsen erzeugten globularen Pulverpartikeln gebunden sind, und keine nachträglichen Konsolidierungsprozesse {z.B. Walzen, Schmieden oder Extrusion) erforderlich sind. Diese Aufgabe wird nach der Erfindung dadurch geSöst, dass dem geschmolzenen und verdüsten Metall, insbesondere Aluminium oder Al- Legierungen, während des Sprühprozesses oder daran anschließend Verstärkungs-Partikel beigegeben werden. The invention is therefore based on the object to provide a method by which a component or semifinished product is produced in which the reinforcing particles are firmly and homogeneously bound in the globular powder particles produced by melt-spraying, and no subsequent consolidation processes {eg rolling Forging or extrusion) are required. This object is achieved according to the invention in that the molten and atomized metal, in particular aluminum or Al alloys, are added during the spraying process or subsequently reinforcing particles.
Während der Verdüsung werden Metall- (insbesondere AI-) MMC- Puiverpartikel erzeugt, in welchen die Verstärkungs-Partikel fest und homogen eingebunden sind. Bei der Variante der nachträglichen Beigabe von MMC-Partikeln werden dem zuvor durch Schmelzverdüsen erzeugten Pulver aus Aluminium oder AI-Legierung nach der Siebung MMC-Partikeln hinzugegeben und mit diesem homogen vermischt. Bei allen Varianten werden die Pulverpartikel anschließend zur Erzeugung eines Bauteils oder Halbzeugs mittels eines SPS - Verfahrens verdichtet. During the atomization, metal (in particular Al) MMC powder particles are produced, in which the reinforcing particles are firmly and homogeneously incorporated. In the variant of the subsequent addition of MMC particles, MMC particles are added to the aluminum or Al alloy powder previously produced by melt-atomization after sieving and homogeneously mixed with it. In all variants, the powder particles are subsequently compacted to produce a component or semifinished product by means of a PLC process.
Dadurch bedingt ist ebenfalls in dem daraus erzeugten Bauteil die MMC- Hartstoffverteilung sehr homogen, was sich positiv im Wesentlichen auf die Gefügestruktur und mechanischen Eigenschaften dieses Bauteiles oder des Halbzeugs auswirkt. As a result, the MMC hard material distribution is likewise very homogeneous in the component produced therefrom, which has a positive effect essentially on the microstructure and mechanical properties of this component or of the semifinished product.
Dies wird erfindungsgemäß durch den dem Verdüsen nachfolgenden SPS-Prozess, welcher eine hohe Gefügedichte (bei gleichzeitig sehr geringer Korngröße) ermöglicht, verstärkt. Eine zusätzliche Konsolidierung (z.B. Walzen, Schmieden oder Extrusion) des erzeugten Bauteils oder des Halbzeugs ist hier nicht mehr erforderlich. This is according to the invention by the subsequent spraying SPS process, which allows a high pitch (at the same time very small grain size), reinforced. Additional consolidation (e.g., rolling, forging, or extrusion) of the produced component or semi-finished product is no longer required.
Falls Metallpartikel aus einem Overspray Verwendung finden, werden diese vor dem Vermischen mit den Verstärkungspartikeln durch Sieben auf ein Kornspektrum < 250 pm eingestellt. Die vorstehend aufgeführte Metali-, bzw. Aluminium oder AI-Legierung, welcher die Verstärkungs-Partikel zugeführt werden, besteht beispielsweise aus einer hypereutektischen Aluminiumiegierung mit einem Siliziumanteil von 5 bis 25 Gew.-Prozent, einem Eisenantei! von 2 bis 10 Gew.-Prozent, einem Nickelanteil von 2 bis 5 Gew.-Prozent, einem Mangananteil von 0 bis 3 Gew.-Prozent und einem Magnesiumanteil von 0 bis 1 Gew.-Prozent, der Rest ist Aluminium. If metal particles from an overspray are used, these are adjusted by sieving to a particle size spectrum <250 μm before mixing with the reinforcing particles. The above-mentioned metal, aluminum or Al alloy, to which the reinforcing particles are supplied, consists for example of a hypereutectic aluminum alloy with a silicon content of 5 to 25 wt.%, An iron content! from 2 to 10% by weight, a nickel content of 2 to 5% by weight, a manganese content of 0 to 3% by weight and a magnesium content of 0 to 1% by weight, the balance being aluminum.
Die eingesetzten MMC-, bzw. Hartstoffpartikel haben vorteilhafterweise eine Größe von 1 bis 50 pm. Für die Weiterverarbeitung im SPS Prozess, werden die mit dem vorher beschriebenen Verfahren erzeugten MMC- Pulverpartikel mit einer Größe kleiner gleich 250 pm verwendet. The MMC or hard material particles used advantageously have a size of 1 to 50 μm. For further processing in the PLC process, the MMC powder particles with a size of less than or equal to 250 μm, produced by the previously described method, are used.
Die Erfindung betrifft sowohl das Verfahren, wie vorstehend beschrieben, ais auch mit dem Verfahren endabmessungsnah erzeugte Bauteile oder Halbzeuge, insbesondere solche, weiche hohe mechanische und oder thermische Beanspruchungen ertragen müssen. Derartige Bauteile sind beispielsweise Bremsscheiben oder Reibringe für Fahrzeuge, die sich vorteilhaft mit dem Verfahren nach der Erfindung herstellen lassen. Bei einer solchen Bremsscheibe oder Reibring kann es sich um eine Monoscheibe, eine belüftete Scheibe, welche durch Einleger oder Schieber erzeugt wurde, oder um eine mehrteilig aufgebaute belüftete Scheibe handeln. Ebenfalls kann eine solche Bremsscheibe oder Reibring im Gefügeaufbau entsprechend der Beanspruchung axial und/oder radial gradiert sein, d.h. die Zusammensetzung ist hinsichtlich der MMC-Anteiie während der Herstellung über den Bauteilquerschnitt beanspruchungsgerecht verteilt, wie in Figur 1 dargestellt ist. Eine Gradierung kann ebenfalls erreicht werden, indem auf einen homogenen Grundkörper als Träger zusätzlich ein beanspruchungsgerechtes MMC-Pulver durch das S PS-Verfahren als Funktionsschicht aufgebracht wird, wie in Figur 2 dargestellt ist. The invention relates both to the method as described above, as well as to the method close to the final dimensions produced components or semi-finished products, in particular those that have to endure high mechanical and or thermal stresses. Such components are, for example, brake discs or friction rings for vehicles, which can be produced advantageously with the method according to the invention. Such a brake disk or friction ring may be a mono disk, a ventilated disk produced by inserts or slides, or a ventilated disk constructed in several parts. Likewise, such a brake disk or friction ring in the structure of the structure can be graded axially and / or radially in accordance with the stress, ie the composition is distributed in terms of stress with respect to the MMC component during manufacture over the component cross section, as shown in FIG. A grading can also be achieved by additionally applying to a homogeneous base body as a support a stress-oriented MMC powder by the S PS process as a functional layer, as shown in FIG.

Claims

P A T E N T A N S P R Ü C H E P A T E N T A N S P R E C H E
1. 1.
Verfahren zur Herstellung von Bauteilen unter Verwendung eines unter Inertgasatmosphäre schmelzverdüsten Pulvers aus Aluminium oder AI- Legierung mit integrierten Hartstoffen, insbesondere aus MMC's (Metallmatrix - Verbundwerkstoffen), dadurch gekennzeichnet, dass dem geschmolzenen und verdüsten Metall, insbesondere Aluminium oder Aluminiumlegierung, während des Sprühprozesses oder daran anschließend Verstärkungs- Partikel beigegeben werden, und danach die Pulverpartikel zur Erzeugung eines Bauteils oder eines Halbzeugs mittels eines SPS- erfahrens verdichtet werden. A process for the manufacture of components using a schmelzverdüsten under inert atmosphere powder of aluminum or AI alloy with integrated hard materials, in particular of MMC's (metal matrix - composites), characterized in that the melted and atomized metal, in particular aluminum or aluminum alloy, while the Spraying process or subsequently be added reinforcing particles, and then the powder particles to produce a component or a semifinished product are compacted by means of a PLC process.
2. Second
Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass der Metall-, bzw. AI-Anteil, welchem die MMC-Partikel zugeführt werden, im Wesentlichen aus einer hypereutektischen Aluminiumlegierung mit einem Siliziumanteil von 5 bis 25 Gew.-Prozent, einem Eisenanteil von 2 bis 10 Gew.-Prozent, einem Nickelanteil von 2 bis 5 Gew.-Prozent, einem Mangananteil von 0 bis 3 Gew.-Prozent und einem Magnesiumanteil von 0 bis 1 Gew.-Prozent, besteht, wobei der Rest Aluminium ist.  A method according to claim 1, characterized in that the metal or AI portion, to which the MMC particles are supplied, essentially of a hypereutectic aluminum alloy having a silicon content of 5 to 25 wt.%, An iron content of 2 to 10% by weight, a nickel content of 2 to 5% by weight, a manganese content of 0 to 3% by weight and a magnesium content of 0 to 1% by weight, the remainder being aluminum.
3. Third
Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die globuiaren MMC-, bzw. Hartstoffpartikel eine Größe von 1 bis 30 μηι aufweisen. Verfahren nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass derA method according to claim 1 or 2, characterized in that the globuiaren MMC, or hard particles have a size of 1 to 30 μηι. A method according to claim 1 to 3, characterized in that the
Anteil der Verstärkungspartikel 5 bis 70 Gew.-Prozent beträgt. 5. Proportion of the reinforcing particles is 5 to 70 percent by weight. 5th
Verfahren nach Anspruch 1 bis 4, dadurch gekennzeichnet, dass zusätzlich in das Metall, weitere Verstärkungspartikel wie z.B. Kohienstoff- Kurzfasern beim Sprühen oder durch Mischen eingebracht werden, um die mechanischen Eigenschaften des so hergestellten Werkstoffes bzw. Bauteiles oder Halbzeuges weiter zu verbessern.  Process according to claims 1 to 4, characterized in that in addition to the metal, further reinforcing particles, e.g. Kohienstoff- short fibers are introduced during spraying or by mixing in order to further improve the mechanical properties of the thus produced material or component or semi-finished product.
6. 6th
Bauteil, insbesondere Bremsscheibe oder Reibring, dadurch gekennzeichnet, dass es mit einem Verfahren gemäß einem der Ansprüche 1 bis 5 hergestellt wurde.  Component, in particular brake disc or friction ring, characterized in that it has been produced by a method according to one of claims 1 to 5.
PCT/EP2012/068801 2011-09-22 2012-09-24 Method for producing components from mmcs (metal matrix composites) using a powder that has been melt-atomised in an inert gas atmosphere WO2013041729A1 (en)

Priority Applications (4)

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EP12761747.0A EP2758195A1 (en) 2011-09-22 2012-09-24 Method for producing components from mmcs (metal matrix composites) using a powder that has been melt-atomised in an inert gas atmosphere
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CN111390175B (en) * 2020-03-26 2021-03-02 湖南金天铝业高科技股份有限公司 Near-net-shape hot-pressing method for rail transit brake disc sintering rough blank

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