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WO2008031745A1 - procédé et dispositif de fabrication de pièces moulées en métal léger - Google Patents

procédé et dispositif de fabrication de pièces moulées en métal léger Download PDF

Info

Publication number
WO2008031745A1
WO2008031745A1 PCT/EP2007/059226 EP2007059226W WO2008031745A1 WO 2008031745 A1 WO2008031745 A1 WO 2008031745A1 EP 2007059226 W EP2007059226 W EP 2007059226W WO 2008031745 A1 WO2008031745 A1 WO 2008031745A1
Authority
WO
WIPO (PCT)
Prior art keywords
light metal
casting
mold
metal according
coolant
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.)
Ceased
Application number
PCT/EP2007/059226
Other languages
German (de)
English (en)
Inventor
Ronald Vrablicz
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.)
Georg Fischer Druckguss GmbH and Co KG
Original Assignee
Georg Fischer Druckguss GmbH and Co KG
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 Georg Fischer Druckguss GmbH and Co KG filed Critical Georg Fischer Druckguss GmbH and Co KG
Publication of WO2008031745A1 publication Critical patent/WO2008031745A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D30/00—Cooling castings, not restricted to casting processes covered by a single main group

Definitions

  • the invention relates to a method for producing cast parts made of light metal.
  • the invention also relates to a device for producing cast parts made of light metal.
  • This object is achieved by a method for producing cast parts made of light metal in the casting process, wherein immediately after opening the mold, the mold part is cooled specifically at voltage-sensitive areas with a coolant.
  • the casting can be cooled directly after opening the die, that is, even before ejecting the molding.
  • a signal for opening a coolant supply for targeted cooling of the voltage-sensitive areas of the casting is provided, the signal is set immediately after opening the mold halves of the mold.
  • This is also achieved by arranging at least one spray nozzle for the targeted supply of the coolant to the casting mold part on a fixed mold half with a stationary clamping plate of the die casting mold. This is further achieved by the fact that the
  • Spray nozzle is arranged on a peripheral device, such as a picking robot or at any other suitable location.
  • the casting can be cooled as safely as possible and with as little coolant. This is achieved by measuring the amount and / or the temperature of the supplied coolant. This is also achieved in that the coolant is formed as a liquid or gaseous medium. This is further achieved by using water as the liquid coolant.
  • Figure 1 is a view of an inventive device for the production of moldings made of light metal
  • FIG. 2 shows a view of a partial region from the device of FIG. 1.
  • FIG. 3 shows an exemplary casting
  • a die casting machine 1 for the production of mold parts 2 made of light metal is shown schematically.
  • the die-casting machine 1 consists essentially of a casting unit 3, a die-casting mold 4 and a mold closing unit 5.
  • the liquid light metal for example an aluminum or magnesium alloy, is conveyed under pressure into the die-casting mold 4 by the casting unit 3.
  • Form closing unit 5 is used to open and close the die-casting mold 4.
  • a fully automatic die-casting machine 1 is supplemented by various peripheral devices, such as a removal robot 6 or a computer control.
  • the mold closing unit 5 is shown schematically immediately after the casting process and prior to removal of the mold part 2 in the open state.
  • the most important components of the mold closing unit 5 are a fixed platen 8, which receives a fixed mold half 7, and a movable platen 10, on which a movable mold half 9 is mounted.
  • a fixed platen 8 which receives a fixed mold half 7, and a movable platen 10, on which a movable mold half 9 is mounted.
  • guide columns 11 are provided in the mold closing unit.
  • the guide columns 11 also serve to receive the clamping force generated by the mold closing unit 5, which is generated in order to keep the mold halves 7, 9 closed.
  • a molded part 2 is shown schematically, which is located in the movable mold half 9 before ejection.
  • the casting 2 may be formed as a Gusstraube, that is several connected by means of a Angusssystems components, or as a component with a complicated geometry.
  • FIG. 2 shows diagrammatically how a spray nozzle 12 for the targeted supply of the coolant is arranged on the fixed mold half 7 in a wall region.
  • the spray nozzle (s) 12 the coolant is selectively supplied to the areas of the casting part 2, which are responsible for the distortion of the molded part 2. In most cases, these are thick-walled areas, which have a higher temperature than the rest of the casting mold part 2 immediately after opening the die-casting mold 4.
  • the spray nozzle (s) 12 can also be arranged on the stationary clamping plate 8 or on the removal robot 6.
  • the spray nozzles 12 can be directed to any desired area of the mold part 2 in the movable mold half 9.
  • the spray nozzle 12 is preferably controlled by a process control computer, not shown here, which controls and controls the casting and demolding process.
  • the spray nozzle 12 is opened as soon as the mold halves 7, 9 of the pressure casting mold 4 are opened.
  • the opening time and the coolant flow rate of the spray nozzle 12 can be adjusted.
  • the amount of coolant and the coolant temperature can be adjusted so that the voltage-sensitive areas are selectively cooled from about 400 ° to about 100 ° C.
  • As coolant a liquid or gaseous medium, for example water, air or inert gas can be used.
  • the delay of the casting part 2 is minimized.
  • a subsequent revision of the mold 4, which is composed of the mold halves 7.9, and which has been carried out so far to keep the delay within limits, can be saved.
  • the mechanical and / or manual straightening of the mold parts 2 after removal from the die-casting machine 1 and the clamping and straightening device required for this purpose are eliminated.
  • a thermal post-treatment, for example, the stress-free annealing, of the casting 2 may be omitted. Even components with large differences in wall thicknesses can without delay or
  • Deformation can be made with this modified die-casting process.
  • FIG. 3 shows a U-shaped casting which, after casting, has areas with different cooling rates.
  • the temperatures after the casting process are higher than at the ends 101 of the legs 102, so that without the inventive method or device, after which the hotter areas are selectively cooled, an undesirable delay, in the form of the inwardly bent leg 103rd , arises.
  • the delay may be different due to the environmental conditions during series production.
  • the pouring process according to the invention runs, for example, as follows:
  • the mold is opened after the casting process.
  • a suitable cooling medium for example water, air, inert gas, etc.
  • the cooling medium is effected by means of controllable in the beam direction and / or jet intensity nozzles, which are attached at suitable locations on the die casting machine.
  • the control of the nozzles via signals that are generated at the exact time on the control of the die casting machine, for example, the state "shape open”.
  • the amount of cooling medium supplied depends on the temperatures of the hotter areas to be cooled.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

L'invention concerne un procédé de fabrication de pièces moulées (2) en métal léger par un procédé de moulage sous pression, dans lequel, immédiatement après l'ouverture du moule (4) de moulage sous pression, les zones sensibles aux contraintes de la pièce moulée (2) sont refroidies de manière contrôlée par un agent de refroidissement. L'invention concerne également un dispositif de fabrication de pièces moulées (2).
PCT/EP2007/059226 2006-09-13 2007-09-04 procédé et dispositif de fabrication de pièces moulées en métal léger Ceased WO2008031745A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06120560A EP1900457A1 (fr) 2006-09-13 2006-09-13 Procédé et dispositif de coulage de composants en alliage leger
EP06120560.5 2006-09-13

Publications (1)

Publication Number Publication Date
WO2008031745A1 true WO2008031745A1 (fr) 2008-03-20

Family

ID=37772829

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/059226 Ceased WO2008031745A1 (fr) 2006-09-13 2007-09-04 procédé et dispositif de fabrication de pièces moulées en métal léger

Country Status (2)

Country Link
EP (1) EP1900457A1 (fr)
WO (1) WO2008031745A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2839894A1 (fr) * 2013-08-20 2015-02-25 MAGNA BDW technolgies GmbH Machine et procédé pour traiter des composants coulés
DE102023000582A1 (de) 2023-02-20 2023-06-01 Mercedes-Benz Group AG Vorrichtung und Verfahren zum Richten eines Gussbauteils

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011119002A1 (de) 2011-11-21 2013-05-23 Audi Ag Verfahren und Vorrichtung zur Herstellung von Leichtmetall-Gussteilen

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5881548A (ja) * 1981-11-11 1983-05-16 Topy Ind Ltd ホイ−ルの低圧金型鋳造法
JPS6061164A (ja) * 1983-09-12 1985-04-08 Toyota Motor Corp 金型鋳造方法
JPS60170567A (ja) * 1984-02-13 1985-09-04 Topy Ind Ltd アルミホイールの水ミスト冷却鋳造法
JPH04274863A (ja) * 1991-03-01 1992-09-30 Toyota Motor Corp 指向性凝固鋳造法
DE10334766A1 (de) * 2002-08-01 2004-02-26 Denso Corp., Kariya Giessform und Verfahren zum Giessen eines Metallgegenstands

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5881548A (ja) * 1981-11-11 1983-05-16 Topy Ind Ltd ホイ−ルの低圧金型鋳造法
JPS6061164A (ja) * 1983-09-12 1985-04-08 Toyota Motor Corp 金型鋳造方法
JPS60170567A (ja) * 1984-02-13 1985-09-04 Topy Ind Ltd アルミホイールの水ミスト冷却鋳造法
JPH04274863A (ja) * 1991-03-01 1992-09-30 Toyota Motor Corp 指向性凝固鋳造法
DE10334766A1 (de) * 2002-08-01 2004-02-26 Denso Corp., Kariya Giessform und Verfahren zum Giessen eines Metallgegenstands

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2839894A1 (fr) * 2013-08-20 2015-02-25 MAGNA BDW technolgies GmbH Machine et procédé pour traiter des composants coulés
DE102013216435A1 (de) * 2013-08-20 2015-02-26 Magna BDW technologies GmbH Maschine und Verfahren zum Behandeln von Gussbauteilen
US9694407B2 (en) 2013-08-20 2017-07-04 Magna BDW technologies GmbH Machine and method for treating cast components
DE102023000582A1 (de) 2023-02-20 2023-06-01 Mercedes-Benz Group AG Vorrichtung und Verfahren zum Richten eines Gussbauteils

Also Published As

Publication number Publication date
EP1900457A8 (fr) 2008-06-25
EP1900457A1 (fr) 2008-03-19

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