EP1174200B1 - Casting process and core to be used therein - Google Patents
Casting process and core to be used therein Download PDFInfo
- Publication number
- EP1174200B1 EP1174200B1 EP01117615A EP01117615A EP1174200B1 EP 1174200 B1 EP1174200 B1 EP 1174200B1 EP 01117615 A EP01117615 A EP 01117615A EP 01117615 A EP01117615 A EP 01117615A EP 1174200 B1 EP1174200 B1 EP 1174200B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- melt
- core
- infiltration
- phase
- matrix
- 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.)
- Expired - Lifetime
Links
Classifications
-
- 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
-
- 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
- B22D17/007—Semi-solid pressure die casting
-
- 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
- B22D19/14—Casting in, on, or around objects which form part of the product the objects being filamentary or particulate in form
-
- 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
- C22C1/1005—Pretreatment of the non-metallic additives
- C22C1/1015—Pretreatment of the non-metallic additives by preparing or treating a non-metallic additive preform
- C22C1/1021—Pretreatment of the non-metallic additives by preparing or treating a non-metallic additive preform the preform being ceramic
-
- 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
- C22C1/1073—Infiltration or casting under mechanical pressure, e.g. squeeze casting
-
- 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
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
Definitions
- the invention relates to a method for casting a light alloy consisting of a lost casting core, which consists of a traversed by infiltration channels matrix.
- the components must be as light as possible.
- the total weight of the vehicle is reduced, which is positively u. a.
- the so-called unsprung chassis mass minimized, which has a positive effect on driving behavior and ride comfort.
- a workpiece which consists of a lightweight material.
- foam bodies of relatively high compressive strength and fine-pored to coarsely porous structure, which are held together by means of a shape-defining compound.
- the foam body can z. B. be formed of a silicate mineral foam.
- the formulation given in the specification gives foam bodies having a density of about 0.3 g / cm 3 .
- the present invention takes up this consideration. However, it should be achieved even higher strength of the workpiece in lightweight construction.
- the melt penetrates at least into the edge zone of the casting core and that formed by the solidified melt Cast body has a by the cellular structure (matrix) self-supporting structure.
- the solidification of the melt in the outer periphery of the matrix of the casting core results in a macrostructure, which is known from statics as a vaulting effect and favors the reduction of material stress in the material upon attack of an externally acting load collective on the cast body.
- the material areas of the matrix which delimit the infiltration channels consist of a light but dense material, so that these areas are not penetrated by the melt.
- the material may be z. B. be a silicate foam.
- such a matrix has a structure-borne sound damping effect with an eradication efficiency of up to 20% in the frequency spectrum between 80 and 800 Hz, so that a chain formation of chassis and drivetrain components and subsequent body structure components with internal foam structures sufficient insulation effect can be achieved without the use of eradication masses.
- the infiltration channels can be easily reached by the melt, their space size should be at least three to five times larger than the crystal bodies of the light metal used for the melt.
- the matrix consists of a larger number of mineral foam spheres which are glued to one another at the contact surfaces, thus forming a dense spherical matrix.
- the diameter of the ball is between 1 and 8 mm. The bonding takes place with the aid of a suitable degassing binder for lost casting cores.
- the filling of the infiltration channels of the core is carried out with a 100% liquid melt, wherein the infiltration progress is controlled by monitoring the pressure and the temperature of the melt. Due to the infiltration and the necessary period of time, heat is released into the matrix and the environment, so that the melt passes into the thixotropic (semi-solid) phase (cooling phase). This process is also monitored and controlled by means of temperature sensors. This phase is followed by a pressure phase in which the semi-solidified melt is pressurized. In this way, it is avoided that the cast workpiece receives too high a solidification porosity.
- the casting core or preform is made of mineral foam balls, which consist essentially of a silicate whose temperature resistance is at least 700 ° C. These balls are mechanically compacted and glued together at the contact points with a binder. Due to their composition, the spheres have dimensional stability at isostatic pressures of up to 1000 bar. This ensures their dimensional stability throughout the casting process.
- the interspaces of the spheres form coherent continuous infiltration channels whose spatial size is at least three to five times greater than the diameter of the crystal bodies in the molten metal.
- This preform is placed in a casting mold, using receptacle and spacer to the mold or at the preform creates a gap, which is filled or encapsulated in the docking with the material namely magnesium or aluminum.
- the casting phase is divided into three main phases, namely the docking, the infiltration and the pressure phase (thixocasting phase) just mentioned.
- the docking phase the gap space is prefilled with the liquid melt virtually without pressure, wherein the melt has a temperature of about 630 ° C.
- the melt has a temperature of 610-620 ° C. She is still liquid and her condition is still above the liquidus line. By exerting pressure on the melt from the outside, it penetrates into the outer infiltration channels between the balls and in this way fills at least the outer regions of the infiltration channels of the preform.
- the depth of the edge zone of the casting core which is to be filled with the melt, can be controlled.
- the temperature of the melt decreases, so that it goes into the thixotropic phase, ie in a semi-solid state. Again, this is monitored by a thermometer to initiate the beginning of the printing phase as a dynamic control feature.
- the casting process is complete.
- the casting receives a very good contour sharpness, which corresponds to the desired final contour, so that the workpiece does not need to be reworked. Only the casting system has to be removed by a cutting or cutting process.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Printing Plates And Materials Therefor (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Verfahren zum Gießen einer aus Leichtmetall bestehenden Baueinheit mit einem verlorenen Gießkern, der aus einer von Infiltrationskanälen durchzogenen Matrix besteht.The invention relates to a method for casting a light alloy consisting of a lost casting core, which consists of a traversed by infiltration channels matrix.
Mit der Erfindung soll insbesondere ein Bauteil für das Fahrwerk oder dem Antriebsstrang eines Kraftfahrzeuges hergestellt werden. In dieser Anwendung müssen die Bauteile möglichst leicht sein. Dadurch wird nämlich einerseits das Gesamtgewicht des Fahrzeuges reduziert, was sich positiv u. a. auf den Kraftstoffverbrauch auswirkt, und andererseits auch die sogenannte ungefederte Fahrwerksmasse minimiert, was einen positiven Einfluss auf das Fahrverhalten und den Fahrkomfort bewirkt.With the invention, in particular a component for the chassis or the drive train of a motor vehicle to be produced. In this application, the components must be as light as possible. As a result, on the one hand, the total weight of the vehicle is reduced, which is positively u. a. On the other hand, the so-called unsprung chassis mass minimized, which has a positive effect on driving behavior and ride comfort.
In der DE 195 01 508 C1 wird daher für das Fahrwerk eines Kraftfahrzeuges vorgeschlagen, ein Bauteil mit einem verlorenen Kern aus Aluminium im Aluminiumdruckguss-Verfahren herzustellen, wobei der verlorene Kern aus Aluminiumschaum bestehen soll.In DE 195 01 508 C1 is therefore proposed for the chassis of a motor vehicle to produce a component with a lost core of aluminum in die-cast aluminum process, the lost core is to consist of aluminum foam.
Aus der DE 196 53 149 A1 ist ein Werkstück bekannt, das aus einem Leichtbau-Werkstoff besteht. In dieser Schrift wird vorgeschlagen, den Kern nicht aus einem Aluminiumschaum zu bilden, sondern aus Schaumkörpern von relativ großer Druckfestigkeit und feinporiger bis grobporiger Struktur, die mittels einer formbestimmenden Verbindung zusammengehalten werden. Die Schaumkörper können z. B. aus einem silikatischen Mineralschaum gebildet werden. Mit der Rezeptur, die in der Schrift angegeben ist, erhält man Schaumkörper mit einer Dichte von ca. 0,3 g/cm3.From DE 196 53 149 A1 a workpiece is known, which consists of a lightweight material. In this document, it is proposed not to form the core of an aluminum foam, but of foam bodies of relatively high compressive strength and fine-pored to coarsely porous structure, which are held together by means of a shape-defining compound. The foam body can z. B. be formed of a silicate mineral foam. The formulation given in the specification gives foam bodies having a density of about 0.3 g / cm 3 .
Die vorliegende Erfindung greift diese Überlegung auf. Es soll allerdings eine noch höhere Festigkeit des Werkstückes in Leichtbauweise erzielt werden.The present invention takes up this consideration. However, it should be achieved even higher strength of the workpiece in lightweight construction.
Es wird daher ein Verfahren zum Gießen einer aus Leichtmetall bestehenden Baueinheit, die einen aus einer Matrix bestehenden verlorenen Kern besitzt, mit den folgenden Phasen vorgeschlagen:
- eine Andockphase, in der in den Zwischenraum zwischen dem Kern und einer den Kern umgebenden Schale eine flüssige Schmelze eingebracht wird,
- eine Infiltrationsphase, in der bei niedrigem Druck die Schmelze in einem noch flüssigen Zustand in die Infiltrationskanäle der Randzone des Kernes eindringt,
- eine Abkühlphase, in der die Schmelze in einen thixotropen Zustand übergeht, und
- eine Druckphase, in der die thixotrope Schmelze unter Druck gesetzt wird, um eine Erstarrungsporosität in dem Gusswerkstück zu vermeiden.
- a docking phase in which a liquid melt is introduced into the space between the core and a shell surrounding the core,
- an infiltration phase in which, at low pressure, the melt in a still liquid state penetrates into the infiltration channels of the edge zone of the core,
- a cooling phase in which the melt is in a thixotropic state, and
- a pressure phase in which the thixotropic melt is pressurized to avoid solidification porosity in the casting.
Mit einem solchen Verfahren wird erreicht, dass die Schmelze zumindest in die Randzone des Gießkerns eindringt und der von der erstarrten Schmelze gebildete Gusskörper eine durch den zellularen Aufbau (Matrix) selbsttragende Struktur aufweist. Durch die Erstarrung der Schmelze in der äußeren Peripherie der Matrix des Gießkernes entsteht eine Makrotragstruktur, die aus der Statik als Gewölbewirkung bekannt ist und den Abbau von Materialspannung im Werkstoff bei Angriff eines von außen wirkenden Lastkollektives auf den Gusskörper begünstigt.With such a method it is achieved that the melt penetrates at least into the edge zone of the casting core and that formed by the solidified melt Cast body has a by the cellular structure (matrix) self-supporting structure. The solidification of the melt in the outer periphery of the matrix of the casting core results in a macrostructure, which is known from statics as a vaulting effect and favors the reduction of material stress in the material upon attack of an externally acting load collective on the cast body.
Dies wird insbesondere auch dadurch erreicht, dass die Materialbereiche der Matrix, die die Infiltrationskanäle begrenzen, aus einem leichten, aber dichten Material bestehen, so dass diese Bereiche von der Schmelze nicht durchdrungen werden. Bei dem Material kann es sich z. B. um einen silikatischen Schaum handeln.This is achieved in particular by the fact that the material areas of the matrix which delimit the infiltration channels consist of a light but dense material, so that these areas are not penetrated by the melt. The material may be z. B. be a silicate foam.
Es hat sich herausgestellt, dass eine solche Matrix eine körperschalldämmende Wirkung mit einer Tilgungseffizienz von bis zu 20 % im Bereich des Frequenzspektrums zwischen 80 und 800 Hz besitzt, so dass durch eine Kettenbildung von Fahrwerks- und Antriebstrangkomponenten und nachfolgenden Karosserie-Strukturkomponenten mit inneren Schaumstrukturen eine hinreichende Dämmwirkung ohne Verwendung von Tilgungsmassen erzielt werden kann.It has been found that such a matrix has a structure-borne sound damping effect with an eradication efficiency of up to 20% in the frequency spectrum between 80 and 800 Hz, so that a chain formation of chassis and drivetrain components and subsequent body structure components with internal foam structures sufficient insulation effect can be achieved without the use of eradication masses.
Damit die Infiltrationskanäle von der Schmelze gut erreicht werden können, soll deren Raumgröße mindestens drei- bis fünffach größer sein als die Kristallkörper des für die Schmelze verwendeten Leichtmetalls.So that the infiltration channels can be easily reached by the melt, their space size should be at least three to five times larger than the crystal bodies of the light metal used for the melt.
Am einfachsten wird dies erreicht, wenn die Matrix aus einer größeren Anzahl mineralischer Schaumkugeln besteht, die an den Kontaktflächen miteinander verklebt sind, also eine dichte Kugelmatrix bilden. Vorzugsweise liegt der Durchmesser der Kugel zwischen 1 und 8 mm. Die Verklebung erfolgt mit Hilfe eines geeigneten entgasungsarmen Bindemittels für verlorene Gießkerne.This is most easily achieved if the matrix consists of a larger number of mineral foam spheres which are glued to one another at the contact surfaces, thus forming a dense spherical matrix. Preferably, the diameter of the ball is between 1 and 8 mm. The bonding takes place with the aid of a suitable degassing binder for lost casting cores.
Das Befüllen der Infiltrationskanäle des Kerns erfolgt mit einer 100 % flüssigen Schmelze, wobei der Infiltrationsfortschritt durch Überwachung des Druckes und der Temperatur der Schmelze gesteuert wird. Durch die Infiltration und des hierfür notwendigen Zeitraumes wird Wärme in die Matrix und die Umgebung abgegeben, so dass die Schmelze in die thixotrope (halbfeste) Phase übergeht (Abkühlphase). Auch dieser Vorgang wird mit Hilfe von Temperaturfühlern überwacht und gesteuert. An diese Phase schließt sich eine Druckphase an, in der die halberstarrte Schmelze unter Druck gesetzt wird. Auf diese Weise wird vermieden, dass das Gusswerkstück eine zu hohe Erstarrungsporosität erhält.The filling of the infiltration channels of the core is carried out with a 100% liquid melt, wherein the infiltration progress is controlled by monitoring the pressure and the temperature of the melt. Due to the infiltration and the necessary period of time, heat is released into the matrix and the environment, so that the melt passes into the thixotropic (semi-solid) phase (cooling phase). This process is also monitored and controlled by means of temperature sensors. This phase is followed by a pressure phase in which the semi-solidified melt is pressurized. In this way, it is avoided that the cast workpiece receives too high a solidification porosity.
Im Folgenden soll an einem Beispiel die Erfindung näher erläutet werden.In the following, the invention will be explained in more detail by way of an example.
Der Gießkern oder auch Preform genannt besteht aus Mineralschaumkugeln, die im Wesentlichen aus einem Silikat bestehen, dessen Temperaturbeständigkeit mindestens 700 °C beträgt. Diese Kugeln werden mechanisch verdichtet und an den Kontaktstellen mit einem Bindemittel miteinander verklebt. Die Kugeln weisen aufgrund ihrer Zusammensetzung eine Formbeständigkeit bei isostatischen Drücken bis zu 1000 bar auf. Dadurch ist ihre Formbeständigkeit während des gesamten Gießprozesses gewährleistet. Die Zwischenräume der Kugeln bilden zusammenhängende durchgängige Infiltrationskanäle, deren Raumgröße mindestens drei- bis fünfmal größer ist als der Durchmesser der Kristallkörper in der Metallschmelze.The casting core or preform is made of mineral foam balls, which consist essentially of a silicate whose temperature resistance is at least 700 ° C. These balls are mechanically compacted and glued together at the contact points with a binder. Due to their composition, the spheres have dimensional stability at isostatic pressures of up to 1000 bar. This ensures their dimensional stability throughout the casting process. The interspaces of the spheres form coherent continuous infiltration channels whose spatial size is at least three to five times greater than the diameter of the crystal bodies in the molten metal.
Diese Preform wird in eine Gießform eingelegt, wobei durch Aufnahme- und Abstandshalter an der Gießform bzw. an der Preform ein Spaltraum entsteht, der in der Andockphase mit dem Werkstoff nämlich Magnesium oder Aluminium ausgefüllt bzw. umgossen wird.This preform is placed in a casting mold, using receptacle and spacer to the mold or at the preform creates a gap, which is filled or encapsulated in the docking with the material namely magnesium or aluminum.
Die Gießphase gliedert sich in drei Hauptphasen, nämlich der eben erwähnten Andock-, der Infiltrations- und der Druckphase (Thixogießphase). In der Andockphase wird der Spaltraum mit der flüssigen Schmelze praktisch drucklos vorgefüllt, wobei die Schmelze eine Temperatur von ca. 630 °C aufweist.The casting phase is divided into three main phases, namely the docking, the infiltration and the pressure phase (thixocasting phase) just mentioned. In the docking phase, the gap space is prefilled with the liquid melt virtually without pressure, wherein the melt has a temperature of about 630 ° C.
In der sich anschließenden Infiltrationsphase hat die Schmelze eine Temperatur von 610 - 620 °C. Sie ist damit weiterhin flüssig und ihr Zustand liegt noch über der Liquiduslinie. Indem von außen Druck auf die Schmelze ausgeübt wird, dringt sie in die äußeren Infiltrationskanäle zwischen den Kugeln ein und füllt auf diese Weise zumindest die äußeren Bereiche der Infiltrationskanäle der Preform. Mittels einer Überwachung des Schmelzevolumens (= Gießkolbenposition), kann dabei die Tiefe der Randzone des Gießkerns, die mit der Schmelze gefüllt werden soll, gesteuert werden. Außerdem sinkt die Temperatur der Schmelze, so dass sie in die thixotrope Phase übergeht, also in einen halbfesten Zustand. Auch dies wird mittels eines Thermometers überwacht, um den Beginn der Druckphase als dynamisches Steuerungsmerkmal einleiten zu können.In the subsequent infiltration phase, the melt has a temperature of 610-620 ° C. She is still liquid and her condition is still above the liquidus line. By exerting pressure on the melt from the outside, it penetrates into the outer infiltration channels between the balls and in this way fills at least the outer regions of the infiltration channels of the preform. By means of monitoring the melt volume (= casting piston position), the depth of the edge zone of the casting core, which is to be filled with the melt, can be controlled. In addition, the temperature of the melt decreases, so that it goes into the thixotropic phase, ie in a semi-solid state. Again, this is monitored by a thermometer to initiate the beginning of the printing phase as a dynamic control feature.
Mit dem Ende der Infiltrations- und Abkühlphase wird der Druck auf den Gießkolben erhöht, so dass der Druck in der thixotropen Schmelze steigt. Dadurch wird die Schmelze verdichtet und die Erstarrungsporosität der Schmelze vermieden. Diese abschließende Phase wird Druckphase oder Verdichtungsphase genannt.With the end of the infiltration and cooling phase, the pressure on the casting piston is increased, so that the pressure in the thixotropic melt increases. As a result, the melt is compacted and the solidification porosity of the melt is avoided. This final phase is called the pressure phase or compression phase.
Sobald der Druck am Ende dieser Phase wieder abgesenkt wird, ist der Gießprozess insgesamt abgeschlossen. Insbesondere durch den letzten Schritt erhält das Gussteil eine sehr gute Konturenschärfe, die der gewünschten Endkontur entspricht, so dass das Werkstück nicht mehr nachbearbeitet werden muss. Lediglich das Angießsystem muss durch eine spanende oder schneidende Bearbeitung entfernt werden.Once the pressure is lowered again at the end of this phase, the casting process is complete. In particular, by the last step, the casting receives a very good contour sharpness, which corresponds to the desired final contour, so that the workpiece does not need to be reworked. Only the casting system has to be removed by a cutting or cutting process.
Claims (8)
- A method of casting a constructional unit consisting of light metal with a lost core which consists of a matrix traversed by infiltration channels,
including a docking phase, in which the liquid melt is fed into the gap between the core and a shell surrounding the core,
including an infiltration phase, in which the melt penetrates into the infiltration channels of the edge zone of the core at low pressure whilst still in a liquid state, including a cooling phase, in which there is a transition of the melt into a thixotropic state, and
including a pressure phase, in which the thixotropic melt is subjected to pressure in order to prevent solidification porosity in the cast work piece. - A method in accordance with Claim 1, characterised in that the material areas of the matrix bounding the infiltration channels consist of a light but dense material so that these areas are not penetrated by the melt.
- A method in accordance with Claim 1 or 2, characterised in that the spatial size of the infiltration channels in the core is at least three to five times greater than the diameter of the crystal bodies of the light metal used for the melt.
- A method in accordance with Claim 2 or 3, characterised in that the matrix consists of mineral foam balls which are adhered to one another at the contact areas.
- A method in accordance with Claim 4, characterised in that the diameter of the balls amounts to between 1 and 8 mm.
- A method in accordance with any of the preceding Claims, characterised in that the temperature of the melt in the infiltration phase is just so high that it is 100 % liquid.
- A method in accordance with any of the preceding Claims, characterised in that the casting process is monitored by means of a pressure and a temperature sensor especially in the infiltration phase.
- A cast core especially for use in a method in accordance with the preceding Claims, characterised in that the cast core forms a matrix which is traversed by infiltration channels and consists of mineral foam balls which are adhered to one another at the contact areas by a bonding agent.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10035202 | 2000-07-20 | ||
| DE10035202A DE10035202A1 (en) | 2000-07-20 | 2000-07-20 | Casting process and core for use in this process |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1174200A2 EP1174200A2 (en) | 2002-01-23 |
| EP1174200A3 EP1174200A3 (en) | 2003-10-01 |
| EP1174200B1 true EP1174200B1 (en) | 2006-06-21 |
Family
ID=7649521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01117615A Expired - Lifetime EP1174200B1 (en) | 2000-07-20 | 2001-07-17 | Casting process and core to be used therein |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1174200B1 (en) |
| AT (1) | ATE330736T1 (en) |
| DE (2) | DE10035202A1 (en) |
| ES (1) | ES2266055T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006057786A1 (en) * | 2006-12-06 | 2008-06-12 | Almecon Entwicklungs-, Beratungs- Und Beschaffungsgesellschaft Mbh | Method for producing mold part made of light metal/light metal alloy by a pressing device, comprises opening molding tool of the pressing device subjectable with first pressing force and movable in vertical direction in starting position |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10149244A1 (en) * | 2001-10-05 | 2003-04-24 | Daimler Chrysler Ag | Support pillar, especially for a convertible automobile, is a hollow cast iron shell casting filled with hollow iron balls or iron foam to give strength with a low weight |
| DE102006017104A1 (en) | 2006-04-10 | 2007-10-11 | Kurtz Gmbh | Production of light open-pore components made from e.g. metal comprises pouring the liquid material into a casting device, positioning a core stack in a casting mold, casting and removing the core |
| FR2927269B1 (en) * | 2008-02-13 | 2010-10-29 | C T I F Ct Tech Des Ind De La | PREFORM AND METHOD FOR MANUFACTURING A PIECE WHOSE INNER PART IS METAL FOAM |
| DE102009040934B4 (en) | 2009-09-11 | 2020-06-04 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Plastic molding for a motor vehicle |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5355413A (en) * | 1976-10-29 | 1978-05-19 | Miyazakiken | Method of manufacturing grainndispersed metallic light compound material having metal layer or metal portion of optional shape on its surface or in its interior |
| DE3444406A1 (en) * | 1984-12-05 | 1986-06-05 | Kolbenschmidt AG, 7107 Neckarsulm | CASTED COMPONENTS FOR INTERNAL COMBUSTION ENGINES WITH PEGED-IN REINFORCEMENT BODIES, AND METHOD FOR PRODUCING THE CONNECTION BETWEEN THE COMPONENTS AND THE REINFORCEMENT BODIES |
| FR2592374B1 (en) * | 1985-12-27 | 1991-08-16 | Peugeot | CERAMIC-METAL DIRECT LINKING PROCESS |
| GB9108297D0 (en) * | 1991-04-18 | 1991-06-05 | Gkn Sankey Ltd | Reinforced light metal article and method for its production |
| DE4343945C1 (en) * | 1993-12-22 | 1995-09-14 | Austria Metall | Mfr. of metallic matrix composite materials |
| GB9414660D0 (en) * | 1994-07-20 | 1994-09-07 | Gkn Sankey Ltd | An article and method for its production |
| JP3212245B2 (en) * | 1995-08-30 | 2001-09-25 | マツダ株式会社 | Casting method, casting apparatus and casting |
| EP0815989A3 (en) * | 1996-07-06 | 2000-05-10 | SAB WABCO BSI Verkehrstechnik Products GmbH | Method of production of local ceramic-reinforced casted brake discs from light-metal alloys |
| DE19650613B4 (en) * | 1996-12-06 | 2005-12-29 | Daimlerchrysler Ag | Component with a metal foam core |
| DE19653149A1 (en) * | 1996-12-19 | 1998-06-25 | Bayerische Motoren Werke Ag | Workpiece made of a lightweight material and process for producing the workpiece |
| DE19800594A1 (en) * | 1998-01-09 | 1999-07-15 | Gut Gieserei Umwelt Technik Gm | Process for producing a component with partially liquid materials |
| DE19826848C5 (en) * | 1998-06-16 | 2006-02-23 | Borbet Gmbh | Alloy wheel for motor vehicles |
-
2000
- 2000-07-20 DE DE10035202A patent/DE10035202A1/en not_active Withdrawn
-
2001
- 2001-07-17 EP EP01117615A patent/EP1174200B1/en not_active Expired - Lifetime
- 2001-07-17 ES ES01117615T patent/ES2266055T3/en not_active Expired - Lifetime
- 2001-07-17 AT AT01117615T patent/ATE330736T1/en active
- 2001-07-17 DE DE50110214T patent/DE50110214D1/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006057786A1 (en) * | 2006-12-06 | 2008-06-12 | Almecon Entwicklungs-, Beratungs- Und Beschaffungsgesellschaft Mbh | Method for producing mold part made of light metal/light metal alloy by a pressing device, comprises opening molding tool of the pressing device subjectable with first pressing force and movable in vertical direction in starting position |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1174200A2 (en) | 2002-01-23 |
| DE50110214D1 (en) | 2006-08-03 |
| DE10035202A1 (en) | 2002-01-31 |
| EP1174200A3 (en) | 2003-10-01 |
| ES2266055T3 (en) | 2007-03-01 |
| ATE330736T1 (en) | 2006-07-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE19650613B4 (en) | Component with a metal foam core | |
| DE19501508C1 (en) | Section of a vehicle wheel support | |
| DE60100370T2 (en) | Die-cast magnesium alloy | |
| DE4231344A1 (en) | AXLE HOUSING | |
| DE112013007406B4 (en) | Process for manufacturing aluminum alloy components | |
| EP1174200B1 (en) | Casting process and core to be used therein | |
| DE102011120988A1 (en) | Planar semifinished product of aluminum alloy matrix composite having boron carbide-particles, useful for manufacturing a plate, comprises boron carbide particles-containing layers, and a matrix-forming aluminum alloy comprising silicon | |
| EP1354651A2 (en) | Light weight component comprising a metal foam and process and apparatus for manufacturing same | |
| DE20107462U1 (en) | Wheel cast rim | |
| DE10101960A1 (en) | Machined aluminum alloy cast product, a method of manufacturing the same, and a method of joining using plastic deformation | |
| DE2364116A1 (en) | CONTINUOUS CASTING PROCESS FOR BLOCKS | |
| DE3851593T2 (en) | Process for producing a fiber reinforced metal composition. | |
| DE3810497C2 (en) | Process for producing an aluminum alloy with excellent kneadability | |
| DE19538242C2 (en) | Thixo casting process and use of a thixo casting alloy material | |
| DE102004030780A1 (en) | Composite material used in chassis production comprises cast metallic hollow balls and/or cast metal foams made from steel and cast from the same or similar cast material | |
| DE3835253A1 (en) | SUBJECT OF AN ALUMINUM SILICON ALLOY AND METHOD FOR THE PRODUCTION THEREOF | |
| DE19915237A1 (en) | Deformation element, useful as a crash or impact absorber element, consists of a ductile, energy absorbent lithium or preferably magnesium alloy | |
| WO2006048111A1 (en) | Reinforced part | |
| WO2005007910A1 (en) | Welded aluminium structural component with a metal induced tear deviation | |
| DE2422348A1 (en) | EXTRUSION BLOCK AND PROCESS FOR ITS MANUFACTURING | |
| DE2929812C2 (en) | Wheel for automobiles | |
| AT133534B (en) | Process and mold for the production of pore-free and void-free cast blocks with a fine-grain structure. | |
| EP1201334A1 (en) | Method for operating a hot chamber die casting machine and hot chamber machine therefor | |
| DE2627406A1 (en) | METAL CASTING FORM WITH CROSS-SECTION EXPANDING DOWNwards | |
| DE10012787B4 (en) | Process for producing light metal castings with cast-in bushings |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| RIC1 | Information provided on ipc code assigned before grant |
Ipc: 7B 22D 19/14 A Ipc: 7B 22D 17/00 B Ipc: 7B 22D 19/00 B |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
| 17P | Request for examination filed |
Effective date: 20040331 |
|
| AKX | Designation fees paid |
Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE ES FR GB IT LI NL |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
| REF | Corresponds to: |
Ref document number: 50110214 Country of ref document: DE Date of ref document: 20060803 Kind code of ref document: P |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20060824 |
|
| ET | Fr: translation filed | ||
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2266055 Country of ref document: ES Kind code of ref document: T3 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed |
Effective date: 20070322 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: 732E Free format text: REGISTERED BETWEEN 20090219 AND 20090225 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: 732E Free format text: REGISTERED BETWEEN 20090305 AND 20090311 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: 732E Free format text: REGISTERED BETWEEN 20091029 AND 20091104 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: 732E Free format text: REGISTERED BETWEEN 20091105 AND 20091111 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 50110214 Country of ref document: DE Owner name: GM GLOBAL TECHNOLOGY OPERATIONS LLC (N. D. GES, US Free format text: FORMER OWNER: GM GLOBAL TECHNOLOGY OPERATIONS, INC., DETROIT, MICH., US Effective date: 20110323 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 16 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20160613 Year of fee payment: 16 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20160613 Year of fee payment: 16 Ref country code: FR Payment date: 20160613 Year of fee payment: 16 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20160711 Year of fee payment: 16 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20160713 Year of fee payment: 16 Ref country code: DE Payment date: 20160712 Year of fee payment: 16 Ref country code: CH Payment date: 20160712 Year of fee payment: 16 Ref country code: IT Payment date: 20160720 Year of fee payment: 16 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20160630 Year of fee payment: 16 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50110214 Country of ref document: DE |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| REG | Reference to a national code |
Ref country code: NL Ref legal event code: MM Effective date: 20170801 |
|
| REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 330736 Country of ref document: AT Kind code of ref document: T Effective date: 20170717 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20170717 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20180330 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170801 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170731 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170717 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180201 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170731 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170731 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170717 |
|
| REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20170731 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170717 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170731 |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20181030 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170718 |