EP1513636A1 - Procede de production d'un disque de frein, et disque de frein - Google Patents

Procede de production d'un disque de frein, et disque de frein

Info

Publication number
EP1513636A1
EP1513636A1 EP03725113A EP03725113A EP1513636A1 EP 1513636 A1 EP1513636 A1 EP 1513636A1 EP 03725113 A EP03725113 A EP 03725113A EP 03725113 A EP03725113 A EP 03725113A EP 1513636 A1 EP1513636 A1 EP 1513636A1
Authority
EP
European Patent Office
Prior art keywords
brake disc
bodies
friction ring
core
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.)
Withdrawn
Application number
EP03725113A
Other languages
German (de)
English (en)
Inventor
Siegfried Botsch
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 EP1513636A1 publication Critical patent/EP1513636A1/fr
Withdrawn legal-status Critical Current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
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/12—Casting in, on, or around objects which form part of the product for making objects, e.g. hinges, with parts which are movable relatively to one another
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/12—Discs; Drums for disc brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/1304—Structure
    • F16D2065/1328—Structure internal cavities, e.g. cooling channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2250/00—Manufacturing; Assembly
    • F16D2250/0007—Casting

Definitions

  • the invention relates to a method for producing a brake disc according to claim 1 and a brake disc according to the preamble of claim 6.
  • Shielding is an axial distortion of the brake disc that is due to radial thermal expansion.
  • DE 199 31 140 AI describes, for example, the production of a composite cast brake disc from a pot and a friction ring.
  • a pot is provided with radial retaining bolts and placed in a mold. Then the pot is cast in the area of the retaining bolts and the friction ring is formed. Although there is a separation between the pot and the friction ring with this brake disc, the radial spread is restricted by the rigid retaining bolts.
  • the object of the invention is to provide a method for producing a brake disc and a brake disc, by means of which the shielding is significantly reduced and which is inexpensive to manufacture for large-scale production.
  • the solution consists in a method according to claim 1 and in a brake disc according to claim 6.
  • nested bodies which are arranged to be axially movable relative to one another are introduced into a casting core.
  • the nested bodies are introduced into the casting core in such a way that their axis of movement with respect to the brake disc points largely radially outwards.
  • the casting core is brought into a casting mold, the casting mold is filled in the conventional manner with liquid metal, preferably iron-based. After solidification, the core is removed again and the bodies remain at least partially cast in as connecting links between a friction ring and a brake disk cup.
  • the brake disc chamber and the friction ring are decoupled from one another by using the method according to the invention, which reduces the shielding, and they can be produced and / or joined together in one work step by the composite casting, which significantly reduces the production costs. In principle, no additional connecting means are necessary.
  • the core and the casting mold are shaped in such a way that the filling is carried out together, preferably via a gate. In the solidified state, there remains a bridge between the brake disc chamber and the friction ring, which is then preferably removed by machining. A particularly homogeneous and void-free structure can be achieved with this filling method.
  • the nested bodies are preferably placed in a core mold, followed by core shooting, the bodies being fixed by the shaped and hardened core. This process can be automated well and is therefore inexpensive.
  • a further solution to the problem consists in a brake disk according to the invention.
  • the brake disk is characterized in that a brake disk chamber and a friction ring are connected by two or more pairs of two bodies which are inserted one inside the other and are axially movable with respect to one another.
  • the brake disc chamber is connected to one of the bodies inserted into each other, the friction ring to the other body. Since both bodies are axially movable with respect to one another, the brake disc chamber and the friction ring can also expand radially relative to one another. In this way, the shielding between the brake disc chamber and Friction ring significantly reduced.
  • the resulting advantages are less brake noise, the reduction of brake pad wear and the reduction of micro cracks in the friction ring, which are caused by the shielding. In particular, the reduction of the micro cracks leads to a longer service life of the brake disc.
  • the nested bodies are preferably cast in between the brake disc chamber and the friction ring. There is thus a firm connection between the components.
  • the interlocking bodies preferably have a round, particularly preferably a circular cross section. Accordingly, their geometric shape is designed as a cylinder, an outer body being designed as a hollow cylinder (sleeve) and an inner body likewise being designed as a hollow cylinder or as a solid cylinder (bolt). Such an arrangement is advantageous for unhindered mobility of the bodies relative to one another.
  • FIG. 1 shows a cross section through a cast brake disc with a core
  • FIG. 2 shows a cross section through a brake disc according to FIG. 1 after machining
  • FIG. 3 shows a longitudinal section through a brake disc according to FIG.
  • Fig. 4 shows a longitudinal section through a brake disc.
  • a core shape In a core shape are ten pairs of two bodies, one inside the other, in the form of pairs of cylindrical sleeves ring-shaped (8, 10 in Fig. 1) inserted.
  • a core sand is shot into the core mold and cured.
  • a hardened casting core (core) encloses the sleeve pairs 8, 10 in some areas, as a result of which the sleeve pairs 8, 10 are fixed in the core and become an integral part of the core.
  • the core is placed in a mold, the brake disc is poured out according to a known method.
  • the casting takes place from an underside of a friction ring area, the melt flows in ascending order via bridge channels which form the bridges 12 in the cast brake disc to form a pot area.
  • the cast brake disc is then cooled in a defined manner.
  • FIG. 1 shows a cross section through a brake disk 2 in the raw state after casting, the core 14 still being enclosed by the brake disk 2.
  • the brake disc 2 has a brake disc pot (pot) 4 and a friction ring 6. Pot 4 and friction ring 6 are connected in this state via bridges 12.
  • the core 14 is shaped so that there is a cavity in the inner sleeve 10, which is poured out by a pin 18.
  • the pin 18 is in a fixed connection to the inner sleeve 10.
  • the friction ring 6, however, is in a fixed connection to the outer sleeve 8.
  • FIG. 2 shows the finished brake disc 2 from FIG. 1.
  • the pot 4 is now only connected to the friction ring via the sleeves 8 and 10.
  • the sleeves 8 and 10 are axially movable relative to each other, which allows radial expansion with respect to the cup 4 and the friction ring 6 in the direction of the arrow (FIG. 2).
  • a gap 24 serves to compensate and to discharge cooling air passed through the friction ring 6.
  • the open cavities 19 in the center of the friction ring 6 form an internal ventilation of the brake disc 2.
  • FIG. 3 shows a section along the line II in FIG. 2. Exemplary embodiments for webs 20 or knobs 22 are shown here, through which the cavities 19 of the internal ventilation are formed.
  • the casting 16 is shown, through which the sleeve 8 is cast into the friction ring 6. The torque is transmitted from the friction ring 6 to the pot 4 through the cast pin 18.
  • the nested bodies are designed in the form of an outer sleeve 8 and an inner bolt 26.
  • the bolt 26 is cast in the area of the pot 4.
  • the torque is transmitted by the bolt 26 analogously to the cast pin 18 from FIG. 3.
  • the nested bodies are shown with round cross sections.
  • all other cross sections are basically conceivable, but the cross sections of the bodies should be concentric and not change along an axis of movement.
  • a rail connection e.g. B. in the form of a dovetail connection.
  • brake disc pot is generally used for a holding part that is used to connect the brake disc to a vehicle.
  • the brake disc is preferably cast from an iron-based material, and accordingly the connecting bodies are also preferably made from an iron material.
  • the invention is also applicable to light metal casting.
  • the individual components of the brake disc can consist of different materials.
  • the bridges shown in FIG. 2 run exemplarily on an upper and lower friction ring side. They can be circumferential or interrupted and in principle be arranged at all points of contact between pot 4 and friction ring 6.
  • the arrangement of the bodies (8, 10, 26) inserted into one another is designed in such a way that they are arranged essentially in the area of the friction ring.
  • an outer one of the nested bodies is encased in a pot and a connection analogous to the cast pin 18 in FIG. 3 extends from a friction ring to the pot and is there connected to an inner one of the nested bodies.
  • a connection analogous to the pin 26 in FIG. 4 from the friction ring to the pot is expedient, the pin being cast around in the friction ring and being movably mounted in a sleeve cast into the pot.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

L'invention concerne un procédé de production d'un disque de frein (2), ainsi qu'un disque de frein (2). Le procédé selon l'invention se caractérise en ce que : plusieurs paires de douilles (8, 10) enfoncées les unes dans les autres sont introduites dans une boîte à noyau, le noyau (14) est réparti autour des douilles (8, 10) de sorte que celles-ci constituent une partie intégrante du noyau (14); ensuite, le noyau (14) est introduit dans un outil de moulage et le disque de frein (2) est coulé. Après retrait du noyau (14), la nacelle de disque de frein (4) et l'anneau de friction (6) sont séparés l'un de l'autre et peuvent se dilater l'un par rapport à l'autre sans provoquer une déformation axiale du disque de frein (2).
EP03725113A 2002-06-20 2003-04-29 Procede de production d'un disque de frein, et disque de frein Withdrawn EP1513636A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10227529 2002-06-20
DE10227529A DE10227529B4 (de) 2002-06-20 2002-06-20 Verfahren zur Herstellung einer Bremsscheibe und Bremsscheibe
PCT/EP2003/004439 WO2004000490A1 (fr) 2002-06-20 2003-04-29 Procede de production d'un disque de frein, et disque de frein

Publications (1)

Publication Number Publication Date
EP1513636A1 true EP1513636A1 (fr) 2005-03-16

Family

ID=29723309

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03725113A Withdrawn EP1513636A1 (fr) 2002-06-20 2003-04-29 Procede de production d'un disque de frein, et disque de frein

Country Status (4)

Country Link
US (1) US7467694B2 (fr)
EP (1) EP1513636A1 (fr)
DE (1) DE10227529B4 (fr)
WO (1) WO2004000490A1 (fr)

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Publication number Priority date Publication date Assignee Title
US7775332B2 (en) * 2005-09-15 2010-08-17 Gm Global Technology Operations, Inc. Bi-metal disc brake rotor and method of manufacturing
FR2878593B1 (fr) * 2004-12-01 2008-06-06 Bosch Gmbh Robert Disque monobloc de frein a disque, frein a disque pour vehicule automobile et moule pour disque monobloc de frein a disque
DE102005015552B3 (de) * 2005-04-04 2006-12-21 Otto Zimmermann Gmbh Bremsscheibe, insbesondere innenbelüftete Bremsscheibe
EP1801448B9 (fr) * 2005-12-23 2009-02-25 Brembo Ceramic Brake Systems S.p.A Disque de frein
DE102006031532B3 (de) * 2006-07-07 2008-04-17 Emil Müller GmbH Wasserlöslicher Salzkern mit Funktionsbauteil
DE102006043945A1 (de) 2006-09-14 2008-03-27 Schwäbische Hüttenwerke Automotive GmbH & Co. KG Belüftete Bremsscheibe
DE102007001567B4 (de) 2007-01-10 2009-07-02 Fritz Winter Eisengiesserei Gmbh & Co. Kg Bremsscheibe für eine Scheibenbremse
DE102008042168A1 (de) * 2008-09-17 2010-03-18 Robert Bosch Gmbh Bremsscheibe
DE102008042173A1 (de) * 2008-09-17 2010-03-18 Robert Bosch Gmbh Bremsscheibe
DE102008042818A1 (de) * 2008-10-14 2010-04-15 Robert Bosch Gmbh Bremsscheibe
DE102008044339B4 (de) * 2008-12-04 2012-01-26 Saf-Holland Gmbh Bremsscheibenanordnung für Scheibenbremsen
DE102008061915A1 (de) * 2008-12-15 2010-06-17 Herbert Alber Zusammengesetzte Bremsscheibe mit Buchsenaufnahme
CN102472341B (zh) * 2009-07-06 2015-05-27 克诺尔商用车制动系统有限公司 设计为铸件的制动盘
US8851245B2 (en) 2010-12-03 2014-10-07 Brake Parts Inc Llc Brake rotor
DE102011053253B4 (de) 2011-09-05 2017-08-03 Fritz Winter Eisengiesserei Gmbh & Co. Kg Bremsscheibe
KR20130064304A (ko) * 2011-12-08 2013-06-18 현대자동차주식회사 브레이크 디스크
DE102012205410B4 (de) * 2012-04-03 2016-03-17 Saf-Holland Gmbh Bremsscheibenanordnung für Scheibenbremsen
US9038271B2 (en) * 2012-04-18 2015-05-26 Xiaodi Huang High thermal conductivity disk brakes
DE102013002300B3 (de) * 2013-02-08 2014-07-17 Audi Ag Bremsscheibe für eine Scheibenbremse eines Kraftfahrzeugs
US10100888B2 (en) * 2016-05-16 2018-10-16 Shimano Inc. Bicycle disc brake rotor
CN108071717A (zh) * 2017-12-18 2018-05-25 芜湖伯特利汽车安全系统股份有限公司 一种制动盘及其成形工艺
CN113833784A (zh) * 2021-10-26 2021-12-24 贵州省紫安新材料科技有限公司 一种碳陶铝合金刹车盘及其制备方法
DE102022003418A1 (de) 2022-09-16 2023-06-22 Mercedes-Benz Group AG Bremsscheibe für eine Scheibenbremse eines Fahrzeugs

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Also Published As

Publication number Publication date
WO2004000490A1 (fr) 2003-12-31
DE10227529A1 (de) 2004-01-15
US7467694B2 (en) 2008-12-23
DE10227529B4 (de) 2010-04-01
US20060175159A1 (en) 2006-08-10

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