DE10135485A1 - Process for the near net shape manufacture of components or semi-finished products from light metal alloys are difficult to machine, and the component or semi-finished product, produced by the process - Google Patents

Process for the near net shape manufacture of components or semi-finished products from light metal alloys are difficult to machine, and the component or semi-finished product, produced by the process

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Publication number
DE10135485A1
DE10135485A1 DE2001135485 DE10135485A DE10135485A1 DE 10135485 A1 DE10135485 A1 DE 10135485A1 DE 2001135485 DE2001135485 DE 2001135485 DE 10135485 A DE10135485 A DE 10135485A DE 10135485 A1 DE10135485 A1 DE 10135485A1
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DE
Grant status
Application
Patent type
Prior art keywords
semi
light metal
process
method according
components
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE2001135485
Other languages
German (de)
Inventor
Manfred Arlt
Alfred Boelstler
Anton Eiberger
Thomas Franz
Manfred Heinritz
Rainhard Laag
Angelika Pohl
Jochen Schmid
Otto Stock
Gerhard Subek
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schwaebische Huettenwerke Automotive GmbH
Original Assignee
Schwaebische Huettenwerke Automotive GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/20Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making alloys
    • C22C1/04Making alloys by powder metallurgy
    • C22C1/0408Light metal alloys
    • C22C1/0416Aluminium-based alloys
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/20Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
    • B22F2003/206Hydrostatic or hydraulic extrusion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
    • B22F5/00Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F2005/001Cutting tools, earth boring or grinding tool other than table ware
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
    • B22F2998/00Supplementary information concerning processes or compositions relating to powder metallurgy
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
    • B22F2998/00Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10Processes characterised by the sequence of their steps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
    • B22F2999/00Aspects linked to processes or compositions used in powder metallurgy

Abstract

Die Erfindung betrifft ein Verfahren zur endkonturnahen Fertigung von Bauteilen bzw. Halbzeugen aus schwer zerspanbaren Leichtmetalllegierungen mit den folgenden Schritten: DOLLAR A - ein Pulvermaterial, welches Leichtmetall und Legierungsbestandteile, insbesondere Verschleißträger, aufweist, wird bereitgestellt; The invention relates to a method for near net shape manufacture of components or semi-finished products from light metal alloys are difficult to machine with the following steps: DOLLAR A - a powder material having light metal and alloy components, in particular wear carrier, is provided; DOLLAR A - das Pulvermaterial wird isostatisch zu einem Formkörper gepresst; DOLLAR A - the powder material is isostatically pressed to form a shaped body; und DOLLAR A - der Formkörper wird einem Strangpressvorgang nahe der Sintertemperatur des Leichtmetalls unterzogen. and DOLLAR A - the shaped body is subjected to an extrusion process close to the sintering temperature of the light metal. DOLLAR A Ferner betrifft sie ein durch das Verfahren hergestelltes Bauteil bzw. Halbzeug. DOLLAR A further relates to a product manufactured by the process component or semifinished product.

Description

  • Die Erfindung betrifft ein Verfahren zur endkonturnahen Fertigung von Bauteilen bzw. Halbzeugen aus schwer zerspanbaren Leichtmetalllegierungen und ein durch das Verfahren hergestelltes Bauteil bzw. Halbzeug. The invention relates to a method for near net shape manufacture of components or semi-finished products from light metal alloys are difficult to machine and a product made by the process component or semifinished product.
  • Herkömmlicherweise wird bei der pulvermetallurgischen Herstellung von hochverschleißfesten Bauteilen der Werkstoff als Pulver angeliefert, im klassischen Pulverpressverfahren verarbeitet, gesintert, wärmebehandelt und kalibriert. Conventionally, is delivered in the powder-metallurgical production of highly wear-resistant components, the material as a powder, processed in the classical powder compaction, sintered, heat-treated and calibrated. Die Eigenart eines solchen hochverschleißfesten Werkstoffes ist jedoch ein starker Verzug beim Sintern, der durch die notwendige Flüssigphasensinterung hervorgerufen wird. However, the nature of such a highly wear-resistant material is a strong distortion during sintering, which is caused by the necessary liquid phase. Die geforderte Form- und Maßgenauigkeit beim anschließenden Kalibrieren ist hier eingeschränkt. The required shape and dimensional accuracy during the subsequent calibration is limited here.
  • Um diesen Nachteil der oben genannten Werkstoffe im Punkt Genauigkeit zu beheben, wird erfindungsgemäß ein Verfahren gemäß dem Anspruch 1 und ein Bauteil bzw. Halbzeug gemäß dem Anspruch 11 zur Verfügung gestellt. In order to overcome this disadvantage of the above mentioned materials in point accuracy, a method according to claim 1 and a component or semifinished product according to claim 11 is provided according to the invention. Die Unteransprüche richten sich auf bevorzugte Ausführungsformen der Erfindung. The sub-claims relate to preferred embodiments of the invention.
  • Mit anderen Worten und in einer Ausführungsvariante kann die Erfindung auch bezeichnet werden als Verfahren zur Herstellung eines Sinterteiles aus Sinterleichtmetall mit veränderlichen Anteilen an Verschleißschutzpartikeln als Legierungsanteil. In other words, and in one embodiment, the invention can also be referred to as a process for preparing a sintered article made of sintered light alloy with varying proportions of wear-resistant particles as alloy content.
  • Gemäß einer Ausführungsform der Erfindung ist diese ein Verfahren zur Herstellung von Sinterformteilen aus Leichtmetallen, vorzugsweise Aluminium mit 10-30% Siliziumanteilen, Mg 0-3%, Cu 0-5%, Zn und Fe 0-7%. According to one embodiment of the invention, this is a process for producing shaped sintered parts made of light metal, preferably aluminum with 10-30% silicon fractions, Mg 0-3%, Cu 0-5%, 0-7% Zn, and Fe. Auch andere Leichtmetalle mit veränderten Si-Anteilen sind so herstellbar. Other light metals with modified Si contents are produced. Alternativ zu Si als Verschleißträger können auch Hartstoffpartikelzusätze wie Oxide, Carbide und Silikate mit Anteilen von 0-30% eingesetzt werden. As an alternative to Si as wearing carrier also hard particles additives such as oxides, carbides and silicates at levels of 0-30% can be used.
  • Das Verfahren vereinigt vorteilhafterweise die Verfahren Kalt- oder Heißisostatpressen, Strangpressen, Sägen und Kalibrieren mit vorzugsweise integriertem Facettieren, gegebenenfalls Warmbehandeln und Schmieden zu einer neuartigen Gesamtheit. The method advantageously combines the processes of cold or hot isostatic pressing, extrusion, cutting and calibrating with preferably integrated faceting, optionally heat treatment and forging to a novel entirety.
  • Ausgangspunkt der Erfindung ist bei einer Ausführungsform der pulvermetallurgische Werkstoff Aluminium mit Si-Anteilen von ca. 14% der unter anderem in einer Anwendung als Kettenrad gegen eine Stahlkette, als Rotor und Stator in einem Nockenwellenverstellersystem oder einer Ölpumpe hervorragende, bisher nicht gekannte, gute Verschleißeigenschaften besitzt. is the starting point of the invention in an embodiment of the powder metallurgical aluminum material with Si levels of about 14% of, inter alia, in an application as a sprocket for a steel chain, when the rotor and stator in a camshaft adjuster system or an oil pump excellent, previously unknown, good wear properties has.
  • In bevorzugter Ausführung wird die Erfindung mit folgenden Verfahrensschritten umgesetzt: In a preferred embodiment, the invention is implemented with the following method steps:
    • - Verpressen des Rohpulvers in einer Kalt- oder Heißisostatpresse zu einem Bolzen oder einer Form, die zum späteren Strangpressen geeignet ist. - pressing the raw powder in a cold or hot isostatic press to a bolt or a form which is suitable for subsequent extrusion. Vorteilhaft ist hier der Einsatz eines gepressten Bolzens aus Leichtmetallpulver, um im Gegensatz zu schmelzmetallurgisch hergestellten Bolzen ein gleichmäßigeres Gefüge ohne Lunker und Seigerungen etc. (mit gleichmäßig guter Si-Verteilung und damit guten Verschleißeigenschaften) zu erhalten; here is advantageous to use a pressed bolt of light metal powder to obtain unlike bolt produced by melting a more uniform structure without voids and segregation, etc. (with equally good Si distribution and good wear properties);
    • - Strangpressen des Bolzens nahe der Sintertemperatur des Leichtmetalls. - extruding the pin close to the sintering temperature of the light metal. Dabei Rekristallisation des Gefüges und Temperaturerhöhung bis zur optimalen Temperatur. In this case, recrystallization of the structure and increasing the temperature to the optimum temperature. Der Strangpressbolzen hat nun schon eine sehr gute Maßtoleranz, die für manche Bauteile schon genügen kann; The extrusion billets has been around for a very good dimensional tolerance that may be enough for some components;
    • - wenn die Maßtoleranz noch nicht ausreichend ist, um hochpräzise, einbaufertige Konturen zu erhalten, wird der stranggepresste Bolzen noch weiter nachkalibriert; - if the dimensional tolerance is not yet sufficient to obtain highly accurate, pre-finished contours of the extruded bolt is further recalibrated;
    • - der Strangpressbolzen wird in das für das Bauteil später notwendige Maß in geeigneter Weise getrennt. - the extrusion pin is separated into the later necessary for the component level in a suitable way. Gegebenenfalls wird er dann noch warmbehandelt, einem Nachkalibrierarbeitsgang unterzogen und an definierten Kanten facettiert. If necessary, it is then heat treated, subjected to a Nachkalibrierarbeitsgang and faceted at defined edges. Denkbar ist auch, den Strang als Ganzes in einer Art Ziehprozess auf genaue Maße zu bringen und danach zu trennen. It is also feasible to get the strand as a whole in a kind of drawing process on accurate measurements and to separate it.
  • Erfindungsgemäß wird die bei Sinterteilen übliche Präzision erzeugt. According to the invention the usual precision in sintered parts is generated. Die großen Verzüge wie im oben beschriebenen klassischen Sinterverfahren treten hier nicht mehr auf. The major delays classical as in the above sintering process no longer occur here. Der hochverschleißfeste Werkstoff ist in engen Maßtoleranzen herstellbar. The highly wear-resistant material can be prepared in tight dimensional tolerances.

Claims (11)

  1. 1. Verfahren zur endkonturnahen Fertigung von Bauteilen bzw. Halbzeugen aus schwer zerspanbaren Leichtmetalllegierungen mit den folgenden Schritten: 1. A method for near net shape manufacturing of components and semi-finished products from difficult to machine light alloys with the following steps:
    - ein Pulvermaterial, welches Leichtmetall und Legierungsbestandteile, insbesondere Verschleißträger aufweist, wird bereitgestellt; - a powder material having light metal and alloy components, in particular wear carrier is provided;
    - das Pulvermaterial wird isostatisch zu einem Formkörper gepresst; - the powder material is isostatically pressed to form a shaped body; und and
    - der Formkörper wird einem Strangpressvorgang nahe der Sintertemperatur des Leichtmetalls unterzogen. - the shaped body is subjected to an extrusion process close to the sintering temperature of the light metal.
  2. 2. Verfahren nach Anspruch 1, bei dem als Leichtmetall Aluminium verwendet wird. 2. The method of claim 1, wherein aluminum is used as light metal.
  3. 3. Verfahren nach Anspruch 1 oder 2, bei dem die Legierungsbestandteile Silizium, vorzugsweise 10-30% Si, Magnesium, vorzugsweise 0-3% Mg, Kupfer, vorzugsweise 0 -5% Cu, Zink, vorzugsweise 0-7% Zn, Eisen, vorzugsweise 0-7% Fe umfassen. 3. The method of claim 1 or 2, wherein the alloy components of silicon, preferably 10-30% of Si, magnesium, preferably 0-3% of Mg, copper, preferably 0 5% of Cu, zinc, preferably 0-7% Zn, iron include, preferably 0-7% Fe.
  4. 4. Verfahren nach einem der Ansprüche 1 bis 3, bei dem als Verschleißträger Silizium und/oder Hartstoffpartikelzusätze, insbesondere Oxide, Carbide und Silikate, bevorzugt mit Anteilen von 0-30% eingesetzt werden. 4. The method according to any one of claims 1 to 3, wherein the carrier as a wear silicon and / or hard material particles additives, in particular oxides, carbides and silicates, are preferably used at levels of 0-30%.
  5. 5. Verfahren nach einem der Ansprüche 1 bis 4, bei dem das Pulvermaterial heiß- bzw. kaltisostatisch zu dem Formkörper gepresst wird. 5. The method according to any one of claims 1 to 4, wherein the powder material is pressed hot or cold-isostatically to form the body.
  6. 6. Verfahren nach einem der Ansprüche 1 bis 5, bei dem das Strangpressen so durchgeführt wird, dass eine Rekristallisation des Gefüges und Temperaturerhöhung bis zur optimalen Temperatur eintritt. 6. A method according to any one of claims 1 to 5, wherein the extrusion is performed so that a recrystallization of the structure and increasing the temperature to the optimum temperature occur.
  7. 7. Verfahren nach einem der Ansprüche 1 bis 6, bei dem der gepresste Strang nach dem Strangpressen vereinzelt wird, insbesondere durch einen Schneidvorgang zu einhöhigen Bauteilen bzw. Halbzeugen vereinzelt wird. 7. The method according to any one of claims 1 to 6, wherein the pressed strand after extrusion is separated, in particular separated by a cutting operation to einhöhigen components or semi-finished products.
  8. 8. Verfahren nach einem der Ansprüche 1 bis 7, bei dem nach der Vereinzelung eine Weiterverarbeitung bzw. Kalibrierung des Bauteils bzw. Halbzeuges durchgeführt wird, wenn vorgegebene Eigenschaften bzw. Maßtoleranzen noch nicht erreicht sind, insbesondere durch eine Nachkalibrierung und/oder eine Facettierung. 8. A method according to any one of claims 1 to 7, in which carried out a further processing or calibration of the component or semi-finished product after singulation if predetermined properties or dimensional tolerances have not yet been reached, in particular by a re-calibration and / or faceting.
  9. 9. Verfahren nach einem der Ansprüche 1 bis 7, bei dem das Strangpressprodukt durch einen Ziehvorgang weiterverarbeitet wird, wenn vorgegebene Eigenschaften bzw. Maßtoleranzen noch nicht erreicht sind, worauf dann eine Vereinzelung erfolgt. 9. The method according to any one of claims 1 to 7, wherein the extruded product is processed further by a drawing operation if predetermined properties or dimensional tolerances have not yet been reached, after which a separation takes place.
  10. 10. Verfahren nach einem der Ansprüche 1 bis 9, bei dem das Strangpressprodukt wärmebehandelt wird. 10. The method according to any one of claims 1 to 9, wherein the extruded product is heat-treated.
  11. 11. Bauteil bzw. Halbzeug, dadurch gekennzeichnet, dass es durch ein Verfahren nach einem der Ansprüche 1 bis 10 hergestellt ist. 11. The component or semi-finished product, characterized in that it is produced by a process according to any one of claims 1 to 10 degrees.
DE2001135485 2001-07-20 2001-07-20 Process for the near net shape manufacture of components or semi-finished products from light metal alloys are difficult to machine, and the component or semi-finished product, produced by the process Withdrawn DE10135485A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2001135485 DE10135485A1 (en) 2001-07-20 2001-07-20 Process for the near net shape manufacture of components or semi-finished products from light metal alloys are difficult to machine, and the component or semi-finished product, produced by the process

Applications Claiming Priority (17)

Application Number Priority Date Filing Date Title
DE2001135485 DE10135485A1 (en) 2001-07-20 2001-07-20 Process for the near net shape manufacture of components or semi-finished products from light metal alloys are difficult to machine, and the component or semi-finished product, produced by the process
AT01127413T AT275015T (en) 2001-07-20 2001-11-23 Net-shape process for the production of components or semi-finished products from difficult to machine alloy alloys
DE2001503474 DE50103474D1 (en) 2001-07-20 2001-11-23 Net-shape process for the production of components and semi-finished products from difficult to machine light alloys
EP20010127413 EP1281461B1 (en) 2001-07-20 2001-11-23 Process for preparing near net shaped workpieces from light metal alloys that are difficult to work
ES01127413T ES2227044T3 (en) 2001-07-20 2001-11-23 Process for producing a shape close to final contour of the component parts or of semifinished products based alloys light metals hardly machineable metal cutting.
HU0401206A HU0401206A2 (en) 2001-07-20 2002-07-22 Sinter metal parts with homogeneous distribution of non-homogeneously melting components and method for the production thereof
US10483645 US20040208772A1 (en) 2001-07-20 2002-07-22 Sinter metal parts with homogeneous distribution of non-homogeneously melting components as method for the production thereof
BR0211267A BR0211267A (en) 2001-07-20 2002-07-22 sintered metal parts with homogeneous distribution of cast components not evenly, as well as processes for their manufacture
DE2002501420 DE50201420D1 (en) 2001-07-20 2002-07-22 Sintered metal parts with homogeneous distribution of inhomogeneously melting components, as well as methods for their production
ES02754408T ES2231721T3 (en) 2001-07-20 2002-07-22 Sintered metal parts with even distribution of components not melt homogeneously, as well as processes for their manufacture.
AT02754408T AT280647T (en) 2001-07-20 2002-07-22 Sintered metal parts with homogeneous distribution of inhomogeneously melting components, as well as methods for their production
PCT/DE2002/002692 WO2003011501A3 (en) 2001-07-20 2002-07-22 Sinter metal parts with homogeneous distribution of non-homogeneously melting components and method for the production thereof
JP2003516724A JP2004536232A (en) 2001-07-20 2002-07-22 Sintered metal parts and a manufacturing method thereof having a homogeneous distribution of the components of a heterogeneous melting
EP20020754408 EP1412113B1 (en) 2001-07-20 2002-07-22 Sinter metal parts with homogeneous distribution of non-homogeneously melting components and method for the production thereof
KR20047000580A KR20040030054A (en) 2001-07-20 2002-07-22 Sinter metal parts with homogeneous distribution of non-homogeneously melting components and method for production thereof
CA 2438397 CA2438397A1 (en) 2001-07-20 2002-07-22 Sintered metal parts with homogeneous distribution of non-homogeneously melting components and method for the production thereof
DE2002193319 DE10293319D2 (en) 2001-07-20 2002-07-22 Sintered metal parts having a homogeneous distribution of non-homogeneously melting components, as well as processes for their preparation

Publications (1)

Publication Number Publication Date
DE10135485A1 true true DE10135485A1 (en) 2003-02-06

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DE2001135485 Withdrawn DE10135485A1 (en) 2001-07-20 2001-07-20 Process for the near net shape manufacture of components or semi-finished products from light metal alloys are difficult to machine, and the component or semi-finished product, produced by the process

Country Status (8)

Country Link
US (1) US20040208772A1 (en)
EP (2) EP1281461B1 (en)
JP (1) JP2004536232A (en)
KR (1) KR20040030054A (en)
CA (1) CA2438397A1 (en)
DE (1) DE10135485A1 (en)
ES (2) ES2227044T3 (en)
WO (1) WO2003011501A3 (en)

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Publication number Publication date Type
KR20040030054A (en) 2004-04-08 application
EP1281461B1 (en) 2004-09-01 grant
CA2438397A1 (en) 2003-02-13 application
EP1281461A1 (en) 2003-02-05 application
EP1412113B1 (en) 2004-10-27 grant
ES2231721T3 (en) 2005-05-16 grant
EP1412113A2 (en) 2004-04-28 application
US20040208772A1 (en) 2004-10-21 application
JP2004536232A (en) 2004-12-02 application
ES2227044T3 (en) 2005-04-01 grant
WO2003011501A2 (en) 2003-02-13 application
WO2003011501A3 (en) 2003-05-01 application

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