EP2008740B1 - Verfahren zum Druckgiessen von gegliederten Metallgussstücken - Google Patents

Verfahren zum Druckgiessen von gegliederten Metallgussstücken Download PDF

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Publication number
EP2008740B1
EP2008740B1 EP08011310A EP08011310A EP2008740B1 EP 2008740 B1 EP2008740 B1 EP 2008740B1 EP 08011310 A EP08011310 A EP 08011310A EP 08011310 A EP08011310 A EP 08011310A EP 2008740 B1 EP2008740 B1 EP 2008740B1
Authority
EP
European Patent Office
Prior art keywords
die
pressure
casting
diecasting
inserts
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.)
Not-in-force
Application number
EP08011310A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2008740A1 (de
Inventor
Eckhard Dipl.-Ing. Schindler
Kai Dipl.-Ing. Stets
Michael Strube
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.)
Trimet Aluminium SE
Original Assignee
Trimet Aluminium SE
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 Trimet Aluminium SE filed Critical Trimet Aluminium SE
Priority to PL08011310T priority Critical patent/PL2008740T3/pl
Publication of EP2008740A1 publication Critical patent/EP2008740A1/de
Application granted granted Critical
Publication of EP2008740B1 publication Critical patent/EP2008740B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B22D19/0072—Casting in, on, or around objects which form part of the product for making objects with integrated channels
    • 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
    • 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

Definitions

  • the invention relates to a method for die casting of articulated metal castings, in particular of aluminum or aluminum castings in a die casting mold using slides, engraving elements and inserts, which are positioned and fixed prior to casting.
  • Die casting molds with an insert are used for the production of light metal die-cast parts in a wide variety of forms.
  • Pressure pipes can be used, for example, in the area of bearings that ensure the oil supply to engine and gearbox housing.
  • the inserts For the production of such die-cast products, the inserts must be positioned with high precision in the tool or in the mold half and kept stable in this position during the die-casting process by means of positioning elements. After removal of the die-cast workpiece from the mold, the insert is completely wrapped with cast material except at the points of attack of the positioning.
  • mechanical processing is performed to open the pressure tube.
  • a cylinder liner for a cylinder crankcase which has a contouring on the front side for support against a quill in a die-casting tool.
  • the contouring consists of recesses, which are filled during casting with metal of the cylinder crankcase and thus form part of the cylinder surface.
  • WO2006 / 042350 known to attach pin-shaped positioning in holes or recesses of the casting tool. The positioning elements are intended to penetrate into the core part, wherein the penetration depth is limited by a movable core part support.
  • the object of the present invention is to develop a method and a device for die-casting, with which the positioning of the pressure pipes can be carried out relatively simply and nevertheless with high precision, in particular when using slides, movable engraving elements and inserts. Furthermore, the method and the device should allow the most complete encapsulation of the inserts or the pressure pipes and thereby improve the tightness, especially in Motorenund gearbox construction.
  • the invention consists in that the inserts as hollow profile parts with bulges or thickenings in its wall preferably consist of a material similar to the material of the casting material and that the insertion point punctiform positioned at their bulges or thickenings in the die and when closing the die between the mold halves, or between slides or slides and mold halves are fixed.
  • the die-cast material is pressed into the die casting mold, it surrounds the entire insert with the exception of the point support of the support elements on the mold wall. Since the punctiform support causes virtually no weakening in the structure of the casting, the values for tightness and strength are significantly improved.
  • the method according to the invention offers particular advantages, since the inserts can be preformed or, if appropriate, formed in several parts and can be arranged in exact position over the formations or thickenings in the form of support elements.
  • the machining of the inserts can be carried out in a simple manner with very high accuracy, so that considerable savings can be achieved with correspondingly complicated structures in comparison with conventional machining on a finished diecast part.
  • the ends of the pressure tube are sealed according to the invention.
  • the sealed and cast-in pressure tube ends can be easily opened after the die casting process by a mechanical processing.
  • the pressure tube 1 with formations 2, 3 is shown as an example of an oil or water channel in a motor or transmission part.
  • the pressure tube 1 can be advantageously closed at its ends 4, 5, so that injection of the die-cast material during the casting process is prevented.
  • FIG. 2a and b shows as a partial cross section, the movable mold half of a die-casting tool in a die casting machine.
  • the insert tube 1 is after casting part of a blank 6.
  • the insert tube 1 was fixed before die casting in a blind hole 7 of a mold half.
  • the movable mold half 8 is raised after the casting, so that the blank 6 can be removed with the cast-in tube 1.
  • FIG. 2b illustrates the fixation of the pressure tube 1 in the region of an ejector eleventh
  • FIG. 3 the pressure tube 1 is fixed as an insert between a right and a left slide 9.10.
  • FIG. 4 clarifies this in the form of a sectional drawing.
  • the fixing can also be done by inserting or clamping between fixed and movable engraving elements.
  • the outer circumference of the present in the pressure tube 1 thickening 2 serves as a point support between fixed and movable engraving elements and allows a high tightness of the casting as well as an exact positioning in the wall of the casting. At least two punctiform supports are required so that the pressure tube 1 is stably positioned.
  • the size and position of the spacers acting as spacers or thickenings 2 are determined by the geometric shape of the casting in the region of the gate. In this case, it is of particular importance that the position of the pressure tube 1 during the pouring of the metal under high pressure not is changed.
  • the distance of the spacers or thickenings 2, 3 should allow stable positioning during die casting.
  • the pressure tube must be designed or dimensioned so that compression of the pressure tube is prevented during die casting.
  • the material selection can be used to advantage, it should be noted that in the region of the bulges and thickening good formability of the pressure tube material must be given.
  • Special high-strength alloys are particularly suitable for high-pressure processes or in the area of application near the injection opening.
  • the procedure according to the invention not only improves the accuracy in complicated structures, in particular of engines and transmissions with oil or pressure lines, but also facilitates an automated production process using robots and automatic handling machines as a result of the simplified design. This in turn enables an increase in productivity and reduction of manufacturing costs while increasing the manufacturing accuracy.
  • the embodiments show die-cast parts with channels, such as e.g. Oil or water channels.
  • channels such as e.g. Oil or water channels.
  • pressure pipes were used as inserts and anchored firmly in the structure of the diecasting.
  • similarly structured die cast parts such as e.g. represent different hollow chamber shapes with open ribs or stiffeners on die castings. It is important that the hollow profiles used as insert parts are in point contact with the mold wall and are enclosed by the diecasting alloy.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Forging (AREA)
EP08011310A 2007-06-29 2008-06-21 Verfahren zum Druckgiessen von gegliederten Metallgussstücken Not-in-force EP2008740B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08011310T PL2008740T3 (pl) 2007-06-29 2008-06-21 Sposób odlewania ciśnieniowego złożonych odlewów metalowych

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007030342A DE102007030342B4 (de) 2007-06-29 2007-06-29 Verfahren und Vorrichtung zum Druckgießen von gegliederten Metallgussstücken

Publications (2)

Publication Number Publication Date
EP2008740A1 EP2008740A1 (de) 2008-12-31
EP2008740B1 true EP2008740B1 (de) 2012-08-22

Family

ID=39684538

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08011310A Not-in-force EP2008740B1 (de) 2007-06-29 2008-06-21 Verfahren zum Druckgiessen von gegliederten Metallgussstücken

Country Status (7)

Country Link
EP (1) EP2008740B1 (pl)
DE (1) DE102007030342B4 (pl)
DK (1) DK2008740T3 (pl)
ES (1) ES2393381T3 (pl)
HR (1) HRP20120933T1 (pl)
PL (1) PL2008740T3 (pl)
PT (1) PT2008740E (pl)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2943264B1 (fr) 2009-03-17 2012-11-16 Hispano Suiza Sa Carter moule avec tuyauteries rapportees
DE102011086411A1 (de) * 2011-11-15 2013-05-16 Mahle International Gmbh Gießform für einen Kolben
DE102017206372A1 (de) * 2017-04-13 2018-10-18 Zf Friedrichshafen Ag Metallisches Gussbauteil für ein Gehäuse mit eingegossenem Rohr und SpaltDrainage, sowie Herstellverfahren und Gehäuse, insbesondere Getriebegehäuse
DE102017211236A1 (de) * 2017-07-03 2019-01-03 Zf Friedrichshafen Ag Verfahren zum Umgießen von zumindest einem Einlegebauteil
CN114226676A (zh) * 2021-12-15 2022-03-25 东风(十堰)有色铸件有限公司 一种铝合金压铸件的加工方法
CN116141942A (zh) * 2023-01-19 2023-05-23 华为数字能源技术有限公司 一种动力总成和车辆

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB833320A (en) * 1957-08-13 1960-04-21 List Hans Process for the manufacture of cast pistons
US3439732A (en) * 1964-11-28 1969-04-22 Mario Andreoli Die-casting process using magnetic core to position preform
GB2052329A (en) * 1979-06-01 1981-01-28 Automotive Prod Co Ltd A cast disc brake caliper body and a method of forming a fluid duct therein
US4740018A (en) * 1982-12-28 1988-04-26 Kohtaki & Co., Ltd. Manifold and manufacturing method therefor
JPH0773783B2 (ja) * 1986-06-12 1995-08-09 ヤマハ発動機株式会社 鋳造用金型のインサート固定装置
DE10304971C5 (de) * 2002-11-26 2008-06-12 Fritz Winter Eisengiesserei Gmbh & Co. Kg Gegossenes Bauteil für eine Brennkraftmaschine
US4958537A (en) * 1990-02-20 1990-09-25 Saturn Corporation Transmission casing cover with tubular conduit cast in situ
FR2665384B1 (fr) * 1990-08-02 1992-10-16 Montupet Sa Procede de realisation d'une piece moulee en al ou ses alliages munie de canaux integres.
DE4134066A1 (de) * 1991-10-15 1993-04-22 Thyssen Guss Ag Verfahren zur herstellung von kleinen und kleinsten kanaelen in formgussteilen
DE19532244C2 (de) * 1995-09-01 1998-07-02 Peak Werkstoff Gmbh Verfahren zur Herstellung von dünnwandigen Rohren (I)
JPH09151782A (ja) * 1995-11-29 1997-06-10 Toyota Motor Corp シリンダブロックの製造方法
DE29723083U1 (de) * 1997-04-15 1998-03-26 Honsel AG, 59872 Meschede Form zum Herstellen eines Gußwerkstücks
JP3233358B2 (ja) * 2000-01-14 2001-11-26 日本軽金属株式会社 パイプの鋳ぐるみ方法
DE10153721C5 (de) * 2001-10-31 2011-04-28 Daimler Ag Gießwerkzeug zur Herstellung eines Zylinderkurbelgehäuses
DE10218999B4 (de) * 2002-04-27 2005-03-03 Ks Kolbenschmidt Gmbh Kolben mit Ringträger und Formkühlkanal
DE10238873B4 (de) * 2002-08-24 2004-09-09 Daimlerchrysler Ag Zylinderlaufbuchse für ein Zylinderkurbelgehäuse
DE102004009312B3 (de) * 2004-02-26 2005-04-28 Hatz Motoren Verfahren zur Herstellung eines einteiligen Zylinderkopfs für Dieselmotoren durch Druckgießen und Druckgussform zur Verwendung in dem Verfahren
AT500943B1 (de) * 2004-10-21 2007-04-15 Austria Alu Guss Ges M B H Giesswerkzeug zur herstellung von aus leichtmetallegierungen gegossenen werkstücken sowie verfahren hiezu
DE102005004486B4 (de) * 2005-01-31 2011-05-05 Peak Werkstoff Gmbh Laufbuchse zum Eingießen in einen Motorblock
DE102006016078A1 (de) * 2006-04-04 2007-10-11 Heck & Becker Gmbh & Co. Kg Druckgussform

Also Published As

Publication number Publication date
PL2008740T3 (pl) 2013-01-31
PT2008740E (pt) 2012-12-05
DE102007030342B4 (de) 2010-10-07
ES2393381T3 (es) 2012-12-20
HRP20120933T1 (hr) 2012-12-31
DK2008740T3 (da) 2012-12-10
EP2008740A1 (de) 2008-12-31
DE102007030342A1 (de) 2009-01-02

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