EP1174200A2 - Giessverfahren und Gusskern für die Verwendung in diesem Verfahren - Google Patents
Giessverfahren und Gusskern für die Verwendung in diesem Verfahren Download PDFInfo
- Publication number
- EP1174200A2 EP1174200A2 EP01117615A EP01117615A EP1174200A2 EP 1174200 A2 EP1174200 A2 EP 1174200A2 EP 01117615 A EP01117615 A EP 01117615A EP 01117615 A EP01117615 A EP 01117615A EP 1174200 A2 EP1174200 A2 EP 1174200A2
- 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.)
- Granted
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 an assembly consisting of light metal with a lost pour core that comes from one of infiltration channels solid matrix exists.
- a component is intended with the invention for the chassis or drive train of a motor vehicle getting produced.
- the Components should be as light as possible. This is because on the one hand the total weight of the vehicle reduces what become positive u. a. affects fuel consumption, and also the so-called unsprung chassis mass minimized what a positive impact on the driving behavior and driving comfort.
- a workpiece is known from DE 196 53 149 A1, which consists of a lightweight material.
- it is proposed not to form the core from an aluminum foam, but from foam bodies of relatively high compressive strength and fine-pored to coarse-pored structure, which are held together by means of a shape-determining connection.
- the foam body can e.g. B. be formed from a silicate mineral foam. With the recipe given in the document, foam bodies with a density of approx. 0.3 g / cm 3 are obtained .
- the present invention addresses this consideration on. However, it is said to have an even higher strength of the workpiece can be achieved in lightweight construction.
- the melt at least penetrates into the edge zone of the casting core and the one formed by the solidified melt Cast body one through the cellular structure (matrix) has self-supporting structure.
- the melt in the outer periphery of the matrix of the Pouring core creates a macro support structure, which from the Statics is known as vaulting and the degradation of Material tension in the material when one is attacked from the outside acting load collective favored on the cast body.
- the material can z. B. is a silicate foam.
- Matrix a structure-borne noise-reducing effect with an eradication efficiency of up to 20% in the range of the frequency spectrum between 80 and 800 Hz, so that by a chain formation of chassis and drive train components and subsequent body structure components with internal foam structures a sufficient insulation effect can be achieved without the use of redemption funds can.
- the size of the room should at least be easy to reach be three to five times larger than the crystal body of the light metal used for the melt.
- the Matrix of a large number of mineral foam balls exists that at the contact surfaces with each other are glued, i.e. form a dense spherical matrix.
- the diameter of the ball is between 1 to 8 mm.
- the bonding is done with the help of a suitable one Low-degassing binder for lost casting cores.
- the casting core or preform exists from mineral foam balls, which essentially consist of one Silicate exist, the temperature resistance at least Is 700 ° C. These balls are compressed mechanically and at the contact points with a binder glued together. The balls point because of their Composition a dimensional stability with isostatic Press up to 1000 bar. This is their dimensional stability guaranteed throughout the casting process.
- the spaces between the balls form contiguous continuous infiltration channels, at least the size of the room is three to five times larger than the diameter of the Crystal body in the molten metal.
- This preform is placed in a mold, being by mounting and spacers on the mold or a gap is created on the preform Docking phase with the material namely magnesium or aluminum is filled or poured around.
- the casting phase is divided into three main phases, namely the just mentioned docking, infiltration and the printing phase (thixo casting phase).
- the docking phase becomes the gap with the liquid melt prefilled practically without pressure, the melt being a Has temperature of about 630 ° C.
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)
- Mold Materials And Core Materials (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Printing Plates And Materials Therefor (AREA)
Abstract
Description
Claims (10)
- Verfahren zum Gießen einer aus Leichtmetall bestehenden Baueinheit mit einem verlorenen Gießkern, der aus einer von Infiltrationskanälen durchzogenen Matrix besteht,mit einer Andockphase, in der in den Zwischenraum zwischen dem Kern und einer den Kern umgebenden Schale die flüssige Schmelze eingebracht wird,mit einer Infiltrationsphase, in der bei niedrigem Druck die Schmelze im noch flüssigen Zustand in die Infiltrationskanäle der Randzone des Kernes eindringt,mit einer Abkühlphase, in der die Schmelze in einen thixotropen Zustand übergeht, undmit einer Druckphase, in der die thixotrope Schmelze unter Druck gesetzt wird, um eine Erstarrungsporosität in dem Gusswerkstück zu vermeiden.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, 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.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Raumgröße der Infiltrationskanäle im Kern, mindestens drei- bis fünffach größer ist als der Durchmesser der Kristallkörper des für die Schmelze verwendeten Leichtmetalls.
- Verfahren nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die Matrix aus mineralischen Schaumkugeln besteht, die an den Kontaktflächen miteinander verklebt sind.
- Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass der Durchmesser der Kugeln zwischen 1 und 8 mm beträgt.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass in der Infiltrationsphase die Temperatur der Schmelze gerade so hoch ist, dass diese zu 100 % flüssig ist.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Gießvorgang insbesondere in der Infiltrationsphase mit einem Druck- und Temperatursensor überwacht wird.
- Gießkern insbesondere für die Verwendung in einem Verfahren nach den vorhergehenden Ansprüchen, dadurch gekennzeichnet, dass der Gießkern eine von Infiltrationskanälen durchzogene Matrix bildet, wobei die Materialbereiche der Matrix, von einem leichten aber dichten Material gebildet sind.
- Gießkern nach Anspruch 7, dadurch gekennzeichnet, dass der Gießkern eine Matrix bildet, die aus mineralischen Schaumkugeln besteht, die an den Kontaktflächen miteinander verklebt sind.
- Gießkern nach Anspruch 7, dadurch gekennzeichnet, dass die Spalte zwischen den Schaumkugeln Infiltrationskanäle bilden, deren Raumgröße drei- bis fünffach größer ist als die Kristallkörper des Materials, das für die Schmelze eingesetzt ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10035202 | 2000-07-20 | ||
DE10035202A DE10035202A1 (de) | 2000-07-20 | 2000-07-20 | Gießverfahren und Gusskern für die Verwendung in diesem Verfahren |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1174200A2 true EP1174200A2 (de) | 2002-01-23 |
EP1174200A3 EP1174200A3 (de) | 2003-10-01 |
EP1174200B1 EP1174200B1 (de) | 2006-06-21 |
Family
ID=7649521
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01117615A Expired - Lifetime EP1174200B1 (de) | 2000-07-20 | 2001-07-17 | Giessverfahren und Giesskern für die Verwendung in diesem Verfahren |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1174200B1 (de) |
AT (1) | ATE330736T1 (de) |
DE (2) | DE10035202A1 (de) |
ES (1) | ES2266055T3 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003031252A1 (de) * | 2001-10-05 | 2003-04-17 | Daimlerchrysler Ag | Gegossenes trägerelement für fahrzeugkarosserie |
EP1844881A2 (de) | 2006-04-10 | 2007-10-17 | Kurtz GmbH | Verfahren zur Herstellung von offenporigen Bauteilen aus Metall, Kunststoff oder Keramik mit geordneter Schaumgitterstruktur |
FR2927269A1 (fr) * | 2008-02-13 | 2009-08-14 | C T I F Ct Tech Des Ind De La | Preforme et procede pour la fabrication d'une piece dont une partie interieure est en mousse metallique |
US8652611B2 (en) | 2009-09-11 | 2014-02-18 | GM Global Technology Operations LLC | Plastic moulded part for a motor vehicle |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006057786A1 (de) * | 2006-12-06 | 2008-06-12 | Almecon Entwicklungs-, Beratungs- Und Beschaffungsgesellschaft Mbh | Verfahren zur Herstellung von Formteilen aus Metall mittels einer Pressvorrichtung und Pressvorrichtung zur Durchführung des Verfahrens |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4212558A1 (de) * | 1991-04-18 | 1992-10-22 | Gkn Sankey Ltd | Verstaerktes leichtmetallerzeugnis und verfahren zu seiner herstellung |
DE4343945C1 (de) * | 1993-12-22 | 1995-09-14 | Austria Metall | Verfahren zum Herstellen von Metall-Matrix-Verbundwerkstoffen |
DE19526363A1 (de) * | 1994-07-20 | 1996-01-25 | Gkn Sankey Ltd | Gegenstand und Verfahren zu seiner Herstellung |
DE19653149A1 (de) * | 1996-12-19 | 1998-06-25 | Bayerische Motoren Werke Ag | Werkstück aus einem Leichtbau-Werkstoff und Verfahren zur Herstellung des Werkstückes |
EP0928654A1 (de) * | 1998-01-09 | 1999-07-14 | Gut Giesserei Umwelt Technik GmbH | Verfahren zum Herstellen eines Kompositbauteils mit flüssigen oder teilflüssigen Werkstoffen |
DE19826848A1 (de) * | 1998-06-16 | 1999-12-23 | Borbet Gmbh | Aus Leichtmetallegierungen gegossene Werkstücke |
Family Cites Families (6)
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 (de) * | 1984-12-05 | 1986-06-05 | Kolbenschmidt AG, 7107 Neckarsulm | Gegossene bauteile fuer brennkraftmaschinen mit eingegossenen bewehrungskoerpern sowie verfahren zur herstellung der verbindung zwischen den bauteilen und den bewehrungskoerpern |
FR2592374B1 (fr) * | 1985-12-27 | 1991-08-16 | Peugeot | Procede de liaison directe ceramique-metal |
JP3212245B2 (ja) * | 1995-08-30 | 2001-09-25 | マツダ株式会社 | 鋳造方法及び鋳造装置並びに鋳造品 |
EP0815989A3 (de) * | 1996-07-06 | 2000-05-10 | SAB WABCO BSI Verkehrstechnik Products GmbH | Verfahren zur Herstellung von lokal keramikverstärkten, gegossenen Bremsscheiben aus Leichtmetallegierungen |
DE19650613B4 (de) * | 1996-12-06 | 2005-12-29 | Daimlerchrysler Ag | Bauteil mit einem Metallschaum-Kern |
-
2000
- 2000-07-20 DE DE10035202A patent/DE10035202A1/de not_active Withdrawn
-
2001
- 2001-07-17 ES ES01117615T patent/ES2266055T3/es not_active Expired - Lifetime
- 2001-07-17 DE DE50110214T patent/DE50110214D1/de not_active Expired - Lifetime
- 2001-07-17 EP EP01117615A patent/EP1174200B1/de not_active Expired - Lifetime
- 2001-07-17 AT AT01117615T patent/ATE330736T1/de active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4212558A1 (de) * | 1991-04-18 | 1992-10-22 | Gkn Sankey Ltd | Verstaerktes leichtmetallerzeugnis und verfahren zu seiner herstellung |
DE4343945C1 (de) * | 1993-12-22 | 1995-09-14 | Austria Metall | Verfahren zum Herstellen von Metall-Matrix-Verbundwerkstoffen |
DE19526363A1 (de) * | 1994-07-20 | 1996-01-25 | Gkn Sankey Ltd | Gegenstand und Verfahren zu seiner Herstellung |
DE19653149A1 (de) * | 1996-12-19 | 1998-06-25 | Bayerische Motoren Werke Ag | Werkstück aus einem Leichtbau-Werkstoff und Verfahren zur Herstellung des Werkstückes |
EP0928654A1 (de) * | 1998-01-09 | 1999-07-14 | Gut Giesserei Umwelt Technik GmbH | Verfahren zum Herstellen eines Kompositbauteils mit flüssigen oder teilflüssigen Werkstoffen |
DE19826848A1 (de) * | 1998-06-16 | 1999-12-23 | Borbet Gmbh | Aus Leichtmetallegierungen gegossene Werkstücke |
Non-Patent Citations (1)
Title |
---|
DATABASE WPI Section Ch, Week 197826 Derwent Publications Ltd., London, GB; Class M22, AN 1978-46562A XP002250121 & JP 53 055413 A (MIYAZAKI-KEN), 19. Mai 1978 (1978-05-19) * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003031252A1 (de) * | 2001-10-05 | 2003-04-17 | Daimlerchrysler Ag | Gegossenes trägerelement für fahrzeugkarosserie |
EP1844881A2 (de) | 2006-04-10 | 2007-10-17 | Kurtz GmbH | Verfahren zur Herstellung von offenporigen Bauteilen aus Metall, Kunststoff oder Keramik mit geordneter Schaumgitterstruktur |
EP1844881A3 (de) * | 2006-04-10 | 2007-11-21 | Kurtz GmbH | Verfahren zur Herstellung von offenporigen Bauteilen aus Metall, Kunststoff oder Keramik mit geordneter Schaumgitterstruktur |
US7588069B2 (en) | 2006-04-10 | 2009-09-15 | Kurtz Gmbh | Method for manufacturing open porous components of metal, plastic or ceramic with orderly foam lattice structure |
FR2927269A1 (fr) * | 2008-02-13 | 2009-08-14 | C T I F Ct Tech Des Ind De La | Preforme et procede pour la fabrication d'une piece dont une partie interieure est en mousse metallique |
US8652611B2 (en) | 2009-09-11 | 2014-02-18 | GM Global Technology Operations LLC | Plastic moulded part for a motor vehicle |
Also Published As
Publication number | Publication date |
---|---|
DE50110214D1 (de) | 2006-08-03 |
ATE330736T1 (de) | 2006-07-15 |
EP1174200A3 (de) | 2003-10-01 |
EP1174200B1 (de) | 2006-06-21 |
ES2266055T3 (es) | 2007-03-01 |
DE10035202A1 (de) | 2002-01-31 |
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