EP1293276A2 - Appareil pour fabriquer de pièces coulées sous pression avec un noyau et un insert - Google Patents

Appareil pour fabriquer de pièces coulées sous pression avec un noyau et un insert Download PDF

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Publication number
EP1293276A2
EP1293276A2 EP02015322A EP02015322A EP1293276A2 EP 1293276 A2 EP1293276 A2 EP 1293276A2 EP 02015322 A EP02015322 A EP 02015322A EP 02015322 A EP02015322 A EP 02015322A EP 1293276 A2 EP1293276 A2 EP 1293276A2
Authority
EP
European Patent Office
Prior art keywords
core
insert
connection
casting
die
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Withdrawn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
EP02015322A
Other languages
German (de)
English (en)
Other versions
EP1293276A3 (fr
Inventor
Erik Graf
Guido Söll
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler AG
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
Application filed by DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP1293276A2 publication Critical patent/EP1293276A2/fr
Publication of EP1293276A3 publication Critical patent/EP1293276A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/10—Cores; Manufacture or installation of cores
    • B22C9/105—Salt cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/10—Cores; Manufacture or installation of cores
    • 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
    • B22D17/20—Accessories: Details
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/24—Accessories for locating and holding cores or inserts
    • 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

Definitions

  • the invention relates to a device for producing a Die casting component according to the preamble of claim 1 and a Method according to the preamble of claim 11.
  • Die casting is a cost effective method of manufacture of metallic components, in particular of light metal components.
  • a principal disadvantage of die casting over others Casting process such as sand casting or chill casting consists in that undercuts with respect to the Entformungscardi of the component generally only by consuming and expensive slide can be realized.
  • Inserts are diecast, as well as in US 4,446,906 used as functional-acting areas that are locally specific Material properties such as high strength, better wear resistance, higher thermal conductivity or special have electrical properties. This is usually it necessary that the inserts partially on the surface lie open. Often the inserts are in the later component Due to the design, it is difficult to access.
  • the object of the invention is, starting from said state of Technology, the damage of a casting core in the die-casting process reduce and a hicker-free outer contour of inserts to realize.
  • the object is achieved by a device with the characteristics of Claim 1 solved.
  • the device according to the invention comprises an insert part and a retrievable core used in a die casting tool are positioned. Since the insert partly in the Component is cast and partly a free surface , the core comprises the insert part by area, which referred to herein as coverage areas. In the coverage areas, the core and the insert are form-fitting connected.
  • the positive connection is designed so that they respect a casting metal is tight during die casting. This will avoid being on the core covered Surface of the insert a metal film, already mentioned Make baubles.
  • connection is designed such that the insert supports the core. This means that bending moments during Die casting on the core act absorbed by the insert become. This is also due to the positive fit Connection of core and insert achieved. It should be remembered that that between core and insert quite locally Cavities may occur if thereby the mechanical Resilience of the core is not exceeded.
  • an insert can be connected to multiple cores, as can one Core be associated with several inserts.
  • Diecasting will all be considered in the context of this invention Process understood in which under elevated pressure at least partially poured liquid casting metal in a permanent mold becomes. This includes die casting, the squeeze Casting, thixocasting, thixomolding or similar Method.
  • connection of insert and core takes place in an advantageous manner Way outside of the casting tool.
  • the connection is called a part positioned in the casting tool, reducing the cycle time is shortened and the positioning is simplified (claim 2).
  • the core on the insert stick on or convincedsintern. Also has as expediently powder directly on the insert to the Core to compress (claim 3).
  • the casting tool may have recesses in which the connection Position defined positioned and preferred self centered (claim 4). Particularly preferred are the Core areas of the invention positioned in the recess, so that the insert into a mold cavity of the casting tool protrudes (claim 5).
  • the core can be made up of all substances that subsequently by dissolving in liquid and / or by mechanical Remove exposure.
  • the core must be the withstand mechanical stress that occurs during die casting.
  • the core may be based on salt, e.g. For example, sodium chloride Consist and additives such as carbon and / or temperature resistant contain organic binders.
  • the core can be up the base of ceramic powders with appropriate binders consist. Salt and ceramic powders can be passed through water remove or wash out.
  • the core may be up the basis of gypsum or cement, which are mechanically let remove (claim 8).
  • the casting metals used are preferably the metals customary in die-casting Aluminum, magnesium, zinc or alloys used therefrom (Claim 9).
  • the insert preferably has a melting temperature or a Decay temperature, which is higher than the temperature of the casting metal during casting. It is therefore possible for example, iron-based metals, copper-based, ceramics or metal-ceramic composites (claim 10).
  • Another component of the invention is a method for Production of a die-cast component according to claim 11 using A device according to any one of claims 1 to 10.
  • FIG. 1 shows a detail of a casting tool 2 in which a connection 3 of an insert 4 with a core 6 is arranged in a position-defined manner.
  • the component thus produced is a housing for an electromagnet, the insert is the yoke for the electromagnet.
  • the compound 3 is fixed by the core 6 in a recess 8.
  • a casting metal 10 encloses the insert part and the core partially in the cast state.
  • the compound 3 is designed so that bending moments, the caused by a flow of the cast metal 10 on the core 6 be transferred to the mechanically stable insert 4 become.
  • the compound 3 between insert 4 and the core 6 with respect to the casting metal 10 is tight.
  • Particularly high requirement is here in particular to the sealing edges 5 and to the immediately adjacent Set sealing surfaces 7.
  • In the areas 7 is one possible large-area concern of the core 6 on the insert 4 required. This is also for the transmission of bending moments from the core 6 to the insert 4 required.
  • cavities 13 and 14 can be recessed in areas of the compound 3 ', where no attack of the cast metal 10, quite cavities. In the cavities 13 and 14 act on the core 6 'almost no bending moments, which is why in these areas no higher demands are placed on the nature of the core 6' and on the contact surfaces.
  • the core 6 or 6 ' is as shown in FIGS. 1 and 2, centered in a conical recess 8. It is advantageous to sink the core in the depression, since he so is protected from a melt flow 18.
  • connection 3 with respect to the main flow direction 16 in the casting tool 2 is not for each component realizable.
  • the gate 20 may be possible for the gate 20 to arrange in the casting tool 2, that the advantageous Slope of the main flow direction is achieved.
  • shielding in To install casting tool 2 through which the melt diverted becomes.
  • a salt core consisting of sodium chloride and carbon becomes pressed into a green body and at a temperature of 700 ° C sintered. Its outer contours correspond after sintering those necessary for the connection with the insert part are, with a positive tolerance of at least 1/10 mm respectively.
  • the salt core is at the contact surfaces with a Ceramic adhesive provided and pushed onto the insert. After curing of the ceramic adhesive are the contact surfaces close to a liquid casting metal.
  • the connection is positioned analogously to Figures 1 to 3 in the casting mold.
  • the casting tool is die-cast with aluminum filled. The aluminum solidifies into a component. The component is demoulded and deterred. Subsequently, the core becomes removed by a high pressure water jet.
  • Example 1 Analogously to Example 1, a salt core green body on the insert positioned. The tolerances of the green body amount also at least +0.1 mm. The salt core and the insert will be put together in a sintering furnace and analogous example 1 sintered. After the sintering process are the contact surfaces between the insert and the core also close to each other a liquid casting metal. The further procedure is analogous Example 1.
  • An insert is positioned in a mold.
  • the Press mold has the outer contours of the compound to be displayed on.
  • a ceramic powder mixture based on titanium oxide, an organic binder based on polyethylene glycol containing, is filled in the mold, where it is the Einlegteil at least partially covered. Subsequently, the Powder with the insert pressed. The core and the insert are tightly connected at the contact surfaces.
  • the further Method is analogous to Example 1.
  • Example 3 liquid slip is based on poured from plaster into the mold with the insert and cured. The further procedure is analogous to Example 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
EP02015322A 2001-09-18 2002-07-10 Appareil pour fabriquer de pièces coulées sous pression avec un noyau et un insert Withdrawn EP1293276A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10145876 2001-09-18
DE2001145876 DE10145876A1 (de) 2001-09-18 2001-09-18 Vorrichtung zur Herstellung eines Druckgussbauteils mit einem Kern und einem Einlegeteil

Publications (2)

Publication Number Publication Date
EP1293276A2 true EP1293276A2 (fr) 2003-03-19
EP1293276A3 EP1293276A3 (fr) 2006-11-08

Family

ID=7699376

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02015322A Withdrawn EP1293276A3 (fr) 2001-09-18 2002-07-10 Appareil pour fabriquer de pièces coulées sous pression avec un noyau et un insert

Country Status (2)

Country Link
EP (1) EP1293276A3 (fr)
DE (1) DE10145876A1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008003518A1 (fr) 2006-07-07 2008-01-10 Emil Müller GmbH Noyaux de sel pour le moulage (par injection) de matières plastiques
WO2008003517A1 (fr) 2006-07-07 2008-01-10 Emil Müller GmbH Noyau de sel soluble dans l'eau avec élément fonctionnel
DE102008001941A1 (de) 2008-02-22 2009-08-27 Bühler Druckguss AG Verfahren zur Herstellung von Kernen
DE102008002376A1 (de) 2008-02-22 2009-08-27 Bühler Druckguss AG Verlorener Kern
ITBO20090158A1 (it) * 2009-03-18 2010-09-19 Maprof Sas Di Renzo Moschini E C Metodo di fabbricazione di corpi cavi monolitici mediante un processo di pressocolata o di stampaggio ad iniezione
WO2011061593A1 (fr) 2009-11-17 2011-05-26 Maprof Sas Di Renzo Moschini E C. Procédé de fabrication de corps monolithes à l'aide d'un processus de coulage ou de moulage par injection
DE102013012254A1 (de) 2013-07-24 2015-01-29 Imperia Gesellschaft für angewandte Fahrzeugentwicklung mbH Verfahren und Gusswerkzeug zum Herstellen eines Leichtbauteils
EP3427859A1 (fr) * 2017-07-12 2019-01-16 Grohe AG Noyau de coulée pour une armature sanitaire et armature sanitaire
IT201900021084A1 (it) 2019-11-13 2021-05-13 Coriam S R L Sistema di formatura in stampo di oggetti con cavità multi-inclinate
AT17340U1 (de) * 2020-08-20 2021-12-15 Plansee Se Gusseinsatz und verfahren zur herstellung
EP4046727A1 (fr) 2021-02-19 2022-08-24 ae group ag Procédé de fabrication d'une pièce coulée et moteur électrique
WO2022175183A1 (fr) 2021-02-19 2022-08-25 Ae Group Ag Procédé et système de production de pièce coulée pour la production d'un carter de moteur électrique, et moteur électrique
DE102022200902A1 (de) 2022-01-27 2023-07-27 Volkswagen Aktiengesellschaft Gießform zum Kokillengießen

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005024768A1 (de) * 2005-05-23 2006-11-30 Schaufler Tooling Gmbh & Co.Kg Druckgussform mit Konturteil
DE102005061196B3 (de) * 2005-12-21 2007-01-11 Daimlerchrysler Ag Gießverfahren mit verlorenem Kern und eingegossener Komponente
DE102007062965A1 (de) * 2007-12-21 2009-07-16 Schäfer, Arndt Gießkern für den Metallguss
DE102009024791A1 (de) 2009-06-10 2010-12-16 Daimler Ag Vorrichtung und Verfahren zur Herstellung eines Druckgussbauteiles
DE102014221359A1 (de) * 2014-10-21 2016-04-21 Volkswagen Aktiengesellschaft Verfahren zur Herstellung eines metallischen Druckgussbauteils unter Verwendung eines Salzkerns mit integrierter Stützstruktur und hiermit hergestelltes Druckgussbauteil

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GB1261904A (en) * 1968-06-20 1972-01-26 Aeroplane Motor Alu Cast Improvements in cast metal pistons
GB1275997A (en) * 1968-07-03 1972-06-01 Kawaguchi Nainenki Chuzo Kabus Manufacture of cylinders for internal combustion engines
DE3932562A1 (de) * 1989-09-29 1991-04-11 Kolbenschmidt Ag Vorrichtung zur herstellung von leichtmetallkolben fuer verbrennungskraftmaschinen
JPH09253822A (ja) * 1996-03-19 1997-09-30 Hitachi Metals Ltd 中子を用いた軽合金ダイカスト製造法
JP3915155B2 (ja) * 1996-12-17 2007-05-16 アイシン精機株式会社 内燃機関用ピストンの製造方法
DE19718853A1 (de) * 1997-05-03 1998-11-05 Regler Ind Vertretungen Gmbh Abgaskrümmer für Verbrennungsmotoren und Verfahren zu seiner Herstellung
DE19735012C1 (de) * 1997-08-13 1998-09-03 Daimler Benz Ag Verfahren zur Herstellung eines gegossenen Zylinderkopfes
DE19803867A1 (de) * 1998-01-31 1999-08-05 Volkswagen Ag Verfahren zum Herstellen eines Zylinderkopfes einer Brennkraftmaschine
JP4154754B2 (ja) * 1998-04-27 2008-09-24 マツダ株式会社 複合金属部材の製造方法
DE10009927A1 (de) * 2000-03-01 2001-09-06 Bayerische Motoren Werke Ag Elektromagnetischer Hubaktuator für einen Ventiltrieb einer Brennkraftmaschine

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008003518A1 (fr) 2006-07-07 2008-01-10 Emil Müller GmbH Noyaux de sel pour le moulage (par injection) de matières plastiques
WO2008003517A1 (fr) 2006-07-07 2008-01-10 Emil Müller GmbH Noyau de sel soluble dans l'eau avec élément fonctionnel
DE102006031532B3 (de) * 2006-07-07 2008-04-17 Emil Müller GmbH Wasserlöslicher Salzkern mit Funktionsbauteil
DE102008001941A1 (de) 2008-02-22 2009-08-27 Bühler Druckguss AG Verfahren zur Herstellung von Kernen
DE102008002376A1 (de) 2008-02-22 2009-08-27 Bühler Druckguss AG Verlorener Kern
ITBO20090158A1 (it) * 2009-03-18 2010-09-19 Maprof Sas Di Renzo Moschini E C Metodo di fabbricazione di corpi cavi monolitici mediante un processo di pressocolata o di stampaggio ad iniezione
WO2011061593A1 (fr) 2009-11-17 2011-05-26 Maprof Sas Di Renzo Moschini E C. Procédé de fabrication de corps monolithes à l'aide d'un processus de coulage ou de moulage par injection
US9126264B2 (en) 2009-11-17 2015-09-08 Freni Brembo S.P.A. Method for manufacturing monolithic hollow bodies by means of a casting or injection moulding process
DE102013012254B4 (de) * 2013-07-24 2015-02-26 Imperia Gesellschaft für angewandte Fahrzeugentwicklung mbH Verfahren und Gusswerkzeug zum Herstellen eines Leichtbauteils
DE102013012254A1 (de) 2013-07-24 2015-01-29 Imperia Gesellschaft für angewandte Fahrzeugentwicklung mbH Verfahren und Gusswerkzeug zum Herstellen eines Leichtbauteils
EP3427859A1 (fr) * 2017-07-12 2019-01-16 Grohe AG Noyau de coulée pour une armature sanitaire et armature sanitaire
IT201900021084A1 (it) 2019-11-13 2021-05-13 Coriam S R L Sistema di formatura in stampo di oggetti con cavità multi-inclinate
AT17340U1 (de) * 2020-08-20 2021-12-15 Plansee Se Gusseinsatz und verfahren zur herstellung
US12042853B2 (en) 2020-08-20 2024-07-23 Plansee Se Casting insert and production method
EP4046727A1 (fr) 2021-02-19 2022-08-24 ae group ag Procédé de fabrication d'une pièce coulée et moteur électrique
DE102021104024A1 (de) 2021-02-19 2022-08-25 Ae Group Ag Verfahren zum Herstellen eines Gussteils und Elektromotor
WO2022175183A1 (fr) 2021-02-19 2022-08-25 Ae Group Ag Procédé et système de production de pièce coulée pour la production d'un carter de moteur électrique, et moteur électrique
DE102022200902A1 (de) 2022-01-27 2023-07-27 Volkswagen Aktiengesellschaft Gießform zum Kokillengießen
EP4223432A1 (fr) * 2022-01-27 2023-08-09 Volkswagen Aktiengesellschaft Moule pour la coulée en lingotière

Also Published As

Publication number Publication date
EP1293276A3 (fr) 2006-11-08
DE10145876A1 (de) 2003-04-10

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