EP0764486B1 - Process for producing a casting mould for plural brake disks - Google Patents

Process for producing a casting mould for plural brake disks Download PDF

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Publication number
EP0764486B1
EP0764486B1 EP19960113208 EP96113208A EP0764486B1 EP 0764486 B1 EP0764486 B1 EP 0764486B1 EP 19960113208 EP19960113208 EP 19960113208 EP 96113208 A EP96113208 A EP 96113208A EP 0764486 B1 EP0764486 B1 EP 0764486B1
Authority
EP
European Patent Office
Prior art keywords
mold
disc
mould
producing
casting
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
Application number
EP19960113208
Other languages
German (de)
French (fr)
Other versions
EP0764486A2 (en
EP0764486A3 (en
Inventor
Klaus Seekatz
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.)
Fritz Winter Eisengiesserei GmbH and Co KG
Original Assignee
Fritz Winter Eisengiesserei 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 Fritz Winter Eisengiesserei GmbH and Co KG filed Critical Fritz Winter Eisengiesserei GmbH and Co KG
Publication of EP0764486A2 publication Critical patent/EP0764486A2/en
Publication of EP0764486A3 publication Critical patent/EP0764486A3/en
Application granted granted Critical
Publication of EP0764486B1 publication Critical patent/EP0764486B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B22C9/22—Moulds for peculiarly-shaped castings
    • B22C9/28—Moulds for peculiarly-shaped castings for wheels, rolls, or rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings

Definitions

  • the invention relates to a method for manufacturing one in two halves for the Casting a brake disc, in which the mold cavity of the parting plane of the mold into both mold halves is formed.
  • a procedure according to Insert the model with the mold halves using molding sand filled.
  • the model of the molded disk is included about half each in each of the two mold halves molded.
  • the model is then removed. Then be the mold halves to form the mold cavity composed.
  • the invention has for its object To create procedures with which it is inexpensively possible is to cast a large number of brake discs.
  • the procedure consists in the fact that on a double the amount of cast body can pour. Furthermore, the casting time can be significant be shortened because the two are in the same shape or more castings are produced almost simultaneously can.
  • Another advantage of the invention The procedure is to focus on one core, namely the Outer core, because of the different position of the model at Can do without molding of the mold cavity in the mold, the so far for the undercut sections of the Washer shaped body was necessary. Such sections are now dropped.
  • the box-like mold 1 consists of the mold halves 1a and 1b. It is in the division plane X-X divided in the middle.
  • each of the two mold halves 1a and 1b is the model of the shaped disk body 4 to be produced after the molding sand 5 has been introduced into the mold halves 1a, 1b to form a corresponding Mold cavity molded.
  • the cavities in the Castings to be formed are through in the mold 1 inserted cores closed.
  • An outer core 2 is cast in the molding box 1 and an inner core 3.
  • the mold cavity is formed in mold halves 1a, 1b. This is used to produce the disc molding 4 Molten metal, especially cast iron, filled out.
  • the Disc shaped body 4 with parallel to the parting plane X-X cast disc 4a poured.
  • the form 1 according to Fig. 3 and 4 are two in the manner according to the invention Cast body with perpendicular to the parting plane X-X of shape 1 poured extending disc 4a.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Description

Die Erfindung betrifft ein Verfahren zur Herstellung einer in zwei Formhälften mittengeteilten Form für den Abguß einer Bremsscheibe, bei dem der Formhohlraum von der Teilungsebene der Form aus in beide Formhälften geformt wird. Bei einem solchen Verfahren werden nach dem Einsetzen des Modells die Formhälften mit Formsand gefüllt. Das Modell des Scheibenformkörpers ist dabei etwa je zur Hälfte in jeder der beiden Formhälften abgeformt. Danach wird das Modell entfernt. Dann werden die Formhälften unter Bildung des Formhohlraums zusammengesetzt.The invention relates to a method for manufacturing one in two halves for the Casting a brake disc, in which the mold cavity of the parting plane of the mold into both mold halves is formed. In such a procedure, according to Insert the model with the mold halves using molding sand filled. The model of the molded disk is included about half each in each of the two mold halves molded. The model is then removed. Then be the mold halves to form the mold cavity composed.

Beim Abguß von scheibenförmigen Körpern, nachfolgend "Scheibenformkörper" genannt, war es in der Praxis bisher üblich, das Modell des Scheibenformkörpers so in den Formkasten einzusetzen, daß die Scheibengroßfläche parallel zur Teilungsebene der Form liegt. Ein Beispiel für diese Arbeitsweise ist in der US 5,251,682 gegeben. Bei diesem Stand der Technik wird für das Gießen einer Transmissionsscheibe in herkömmlicher Weise eine in zwei Hälften geteilte, nach Art eines Kastens ausgebildete Form verwendet, in der das Werkstück mit zur Teilungsebene parallel liegender Scheibenfläche abgegossen wird. Zum Erzeugen der Gießform wird dabei zunächst mittels eines Models die untere Hälfte der zu gießenden Scheibe in den in der ersten Formhälfte enthaltenen Formsand abgeformt. Dann wird die obere Hälfte der Scheibenform in die obere Formhälfte eingeformt. Diese wird anschließend auf die untere Formhälfte so aufgesetzt, so daß eine geschlossene Gießform entsteht. In dieser Gießform ist nun ein der Form der zu gießenden Scheibe entsprechender Hohlraum ausgebildet. Die zu gießende Scheibe erstreckt sich dabei in der Teilungsebene der Form.When casting disc-shaped bodies, below In practice it was called "disk shaped body" usual, the model of the shaped disc body in the Insert molding box that the large pane is parallel to the parting plane of the shape. An example for this mode of operation is given in US 5,251,682. This prior art uses one for casting Transmission disc in a conventional manner one in two Halves divided, designed like a box Form used in which the workpiece with Partition plane of parallel disc surface is poured off. It is used to create the mold first, using a model, the lower half of the pouring disc in the first half of the mold molded sand included. Then the top one Half of the disc shape in the upper half of the mold molded. This is then on the lower one Half of the mold placed so that a closed Mold is created. In this mold is now one of the Corresponding cavity shape of the disc to be cast educated. The slice to be cast extends in the parting plane of the form.

Sofern in dieser bekannten Weise in einer Gießform mehrere scheibenförmige Werkstücke gleichzeitig gegossen werden sollen, ist deren Anzahl durch die Größe der in der Teilungsebene der Gießform vorhandenen Fläche begrenzt. Der wirtschaftliche Vorteil des gleichzeitigen Gießens mehrerer Werkstücke kann daher ebenfalls nur im begrenzten Maße genutzt werden. Dies ist insbesondere beim Gießen von Bremsscheiben nachteilig, die unter hohem Kostendruck in großen Stückzahlen hergestellt werden.If in this known manner in a mold cast several disc-shaped workpieces at the same time the number is determined by the size of the in the parting plane of the mold limited. The economic advantage of the simultaneous Casting several workpieces can therefore only in limited dimensions can be used. This is particularly so disadvantageous when casting brake discs that are under high Cost pressures can be produced in large numbers.

Ausgehend von dem voranstehend erläuterten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, ein Verfahren zu schaffen, mit dem es kostengünstig möglich ist, eine große Zahl von Bremsscheiben zu gießen.Based on the status of the Technology, the invention has for its object To create procedures with which it is inexpensively possible is to cast a large number of brake discs.

Dies gelingt, wenn bei einem Verfahren der eingangs angegebenen Art erfindungsgemäß zur Ausbildung des Formhohlraums ein Modell des Scheibenkörpers abgeformt wird, dessen Scheibenfläche in einer zur Teilungsebene der Form senkrechten Ebene steht. Gemäß einer vorteilhaften Ausgestaltung der Erfindung wird dabei der Formhohlraum mit nur einem Innenkern abgeformt.This succeeds if the procedure at the beginning specified type according to the invention for training the Mold cavity molded a model of the disc body is, the disc surface in one to the parting plane the shape of the vertical plane. According to one advantageous embodiment of the invention Mold cavity molded with only one inner core.

Die Vorteile bei Ausführung des erfindungsgemäßen Verfahrens bestehen zum einen darin, daß man auf einer gleich großen Stellfläche die doppelte Menge Gußkörper abgießen kann. Ferner kann die Abgußzeit erheblich verkürzt werden, weil die in einer Form befindlichen zwei oder mehr Gußkörper nahezu gleichzeitig erzeugt werden können. Ein weiterer Vorteil des erfindungsgemäßen Verfahrens ist, daß man auf einen Kern, nämlich den Außenkern, wegen der anderen Lage des Modells beim Abformen des Formhohlraums in der Form verzichten kann, der bislang für die hinterschnittenen Abschnitte des Scheibenformkörpers notwendig war. Solche Abschnitte sind nun entfallen.The advantages in executing the invention On the one hand, the procedure consists in the fact that on a double the amount of cast body can pour. Furthermore, the casting time can be significant be shortened because the two are in the same shape or more castings are produced almost simultaneously can. Another advantage of the invention The procedure is to focus on one core, namely the Outer core, because of the different position of the model at Can do without molding of the mold cavity in the mold, the so far for the undercut sections of the Washer shaped body was necessary. Such sections are now dropped.

Diese Vorteile summieren sich zu einer erheblichen Verminderung der Produktionskosten, ohne daß hierzu ein besonderer Aufwand erforderlich ist. Die Vorteile lassen sich vielmehr mit den gleichen Mitteln erreichen, die man bisher schon beim Formgießen verwendet hat.These advantages add up to a significant one Reduction of production costs without this special effort is required. Let the advantages rather, reach yourself with the same means that one previously used in die casting.

Anhand der Zeichnung wird die Erfindung näher erläutert.

Fig. 1
zeigt den Längsschnitt durch eine Form mit darin abgegossenem Scheibenkörper nach herkömmlicher Erzeugung
Fig. 2
die zugehörige Draufsicht der Form,
Fig. 3
eine Form für den Abguß von zwei Scheibenformkörpern nach dem erfindungsgemäßen Verfahren im Längsschnitt und
Fig. 4
in Draufsicht.
The invention is explained in more detail with reference to the drawing.
Fig. 1
shows the longitudinal section through a mold with cast disc body according to conventional production
Fig. 2
the associated top view of the mold,
Fig. 3
a mold for the casting of two disc moldings according to the inventive method in longitudinal section and
Fig. 4
in top view.

Gleiche Teile sind in den verschiedenen Abbildungen mit denselben Bezugszeichen versehen.The same parts are in the different illustrations provided the same reference numerals.

Die kastenartige Form 1 besteht aus den Formhälften 1a und 1b. Sie ist jeweils in der Teilungsebene X-X mittengeteilt. In jeder der beiden Formhälften 1a und 1b ist das Modell des zu erzeugenden Scheibenformkörpers 4 nach dem Einbringen des Formsandes 5 in die Formhälften 1a,1b unter Bildung einer entsprechenden Gießhohlraumvertiefung abgeformt. Die Hohlräume, die im Gußkörper gebildet werden sollen, sind durch in die Form 1 eingesetzte Kerne geschlossen. Bei der herkömmlichen Gießweise befindet sich im Formkasten 1 ein Außenkern 2 und ein Innenkern 3. Nach dem Zusammensetzen der Formhälften 1a, 1b wird der Formhohlraum gebildet. Dieser wird zur Erzeugung des Scheibenformkörpers 4 mit Metallschmelze, insbesondere Gußeisen, ausgefüllt.The box-like mold 1 consists of the mold halves 1a and 1b. It is in the division plane X-X divided in the middle. In each of the two mold halves 1a and 1b is the model of the shaped disk body 4 to be produced after the molding sand 5 has been introduced into the mold halves 1a, 1b to form a corresponding Mold cavity molded. The cavities in the Castings to be formed are through in the mold 1 inserted cores closed. With the conventional An outer core 2 is cast in the molding box 1 and an inner core 3. After assembling the The mold cavity is formed in mold halves 1a, 1b. This is used to produce the disc molding 4 Molten metal, especially cast iron, filled out.

Bei der bisherigen Ausführung gemäß Fig. 1 und 2 wird der Scheibenformkörper 4 mit parallel zur Teilungsebene X-X liegender Scheibe 4a abgegossen. In der Form 1 nach Fig. 3 und 4 sind dagegen in erfindungsgemäßer Weise zwei Gußkörper mit senkrecht zur Teilungsebene X-X der Form 1 sich erstreckender Scheibe 4a abgegossen.In the previous embodiment according to FIGS. 1 and 2, the Disc shaped body 4 with parallel to the parting plane X-X cast disc 4a poured. In the form 1 according to Fig. 3 and 4, however, are two in the manner according to the invention Cast body with perpendicular to the parting plane X-X of shape 1 poured extending disc 4a.

Für den Abguß benötigt man jeweils nur einen Innenkern 3. Beim Abguß nach dem in Fig. 1 und 2 dargestellten bekannten Muster war demgegenüber wie gesagt noch ein zusätzlicher Außenkern 2 erforderlich. Dieser kann nach dem neuen Verfahren entfallen, weil keine Hinterschneidungen auftreten, die durch einen Außenkern abgedeckt sein müssen.Only one inner core 3 is required for the casting. When casting according to that shown in Figs. 1 and 2 In contrast, as already mentioned, the known pattern was still a additional outer core 2 required. This can follow the new procedure is eliminated because none Undercuts occur through an outer core must be covered.

Claims (2)

  1. A process for producing a mould (1) centrally divided into two mould halves (1a, 1b) for the casting of a brake disc (4), wherein the mould cavity is formed in both mould halves (la, 1b) starting from the dividing plane (X-X) of the mould (1),
    characterised in that for the construction of the mould cavity a model of the disc body (4) is formed whose disc surface (4a) lies in a plane perpendicular to the dividing plane (X-X) of the mould (1).
  2. A process according to claim 1,
    characterised in that the mould cavity is formed with only one inner core (3).
EP19960113208 1995-09-23 1996-08-16 Process for producing a casting mould for plural brake disks Expired - Lifetime EP0764486B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1995135457 DE19535457C1 (en) 1995-09-23 1995-09-23 Preparing mould for casting disc-shaped body, partic. brake disc
DE19535457 1995-09-23

Publications (3)

Publication Number Publication Date
EP0764486A2 EP0764486A2 (en) 1997-03-26
EP0764486A3 EP0764486A3 (en) 1998-11-25
EP0764486B1 true EP0764486B1 (en) 2001-05-23

Family

ID=7773014

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19960113208 Expired - Lifetime EP0764486B1 (en) 1995-09-23 1996-08-16 Process for producing a casting mould for plural brake disks

Country Status (3)

Country Link
EP (1) EP0764486B1 (en)
DE (1) DE19535457C1 (en)
ES (1) ES2158976T3 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102151793A (en) * 2011-01-10 2011-08-17 青岛纺织机械股份有限公司 Manufacturing process of integrated cylinder
CN103567391B (en) * 2013-09-28 2017-08-01 富士和机械工业（湖北）有限公司 The novel casting model structure of automobile brake disc
CN104942235A (en) * 2014-03-24 2015-09-30 韩金福 Box stacking and pouring technical method for automobile brake disc
CN104384444A (en) * 2014-11-27 2015-03-04 宁夏共享装备有限公司 Sand mold structure of oil pan casting
CN106363129A (en) * 2016-08-31 2017-02-01 共享铸钢有限公司 Casting technique of supporting frame for building
GB2566527A (en) * 2017-09-18 2019-03-20 Nissan Motor Iberica Sa Improvements relating to brake disc casting processes and apparatus
GB2566529A (en) * 2017-09-18 2019-03-20 Nissan Motor Iberica Sa Improvements relating to brake disc casting manufacturing

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1404682A (en) * 1917-10-18 1922-01-24 Mary Emma Barker Process of making piston rings
JP2785927B2 (en) * 1985-10-23 1998-08-13 日立金属株式会社 Sliding member for brake
US5251682A (en) * 1992-04-27 1993-10-12 Emerson Electric Co. Cast disk and method of manufacturing the same

Also Published As

Publication number Publication date
EP0764486A2 (en) 1997-03-26
DE19535457C1 (en) 1996-08-08
EP0764486A3 (en) 1998-11-25
ES2158976T3 (en) 2001-09-16

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