EP4638980A2 - Procédé de production d'un corps de frein et corps de frein - Google Patents

Procédé de production d'un corps de frein et corps de frein

Info

Publication number
EP4638980A2
EP4638980A2 EP23836353.5A EP23836353A EP4638980A2 EP 4638980 A2 EP4638980 A2 EP 4638980A2 EP 23836353 A EP23836353 A EP 23836353A EP 4638980 A2 EP4638980 A2 EP 4638980A2
Authority
EP
European Patent Office
Prior art keywords
wear
corrosion protection
layer
protection layer
cast
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.)
Pending
Application number
EP23836353.5A
Other languages
German (de)
English (en)
Inventor
Tilo STEINMEIER
Rene BISCHOFF
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.)
C4 Laser Technology GmbH
Original Assignee
C4 Laser Technology GmbH
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 C4 Laser Technology GmbH filed Critical C4 Laser Technology GmbH
Publication of EP4638980A2 publication Critical patent/EP4638980A2/fr
Pending legal-status Critical Current

Links

Classifications

    • 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
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/02—Composition of linings ; Methods of manufacturing
    • F16D69/027—Compositions based on metals or inorganic oxides
    • 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
    • F16D65/12—Discs; Drums for disc brakes
    • F16D65/125—Discs; Drums for disc brakes characterised by the material used for the disc body
    • 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
    • F16D65/127—Discs; Drums for disc brakes characterised by properties of the disc surface; Discs lined with friction material
    • 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
    • F16D2065/132—Structure layered
    • 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
    • F16D2200/00—Materials; Production methods therefor
    • F16D2200/0004—Materials; Production methods therefor metallic
    • F16D2200/0026—Non-ferro
    • F16D2200/003—Light metals, e.g. aluminium
    • 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
    • F16D2250/003—Chip removing
    • 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
    • F16D2250/0038—Surface treatment
    • F16D2250/0046—Coating

Definitions

  • the present invention relates to the field of vehicle technology and industrial plant technology and relates to a method for producing a brake body, which can be designed, for example, in the form of a brake disc or brake drum, and a brake body produced according to this method.
  • the brake body produced according to the invention can be used, for example, in motor vehicles or as a brake system for industrial brakes or in wind turbines.
  • brake bodies can be designed with special cooling structures to dissipate the frictional heat generated during the braking process.
  • Conventional brake discs are designed as solid non-ventilated or internally ventilated brake discs and can be made of a metallic or ceramic material.
  • Conventional brake drums are of solid construction, sometimes also have cooling structures on the outside of the drum and can be made of a metallic or ceramic material.
  • brake bodies can also be provided with a housing.
  • Brake bodies have several functional areas. In motor vehicles, brake bodies are arranged on the front and rear axles and have a contact surface that is in contact with the rim on the one hand and the wheel hub on the other. The entire brake body is connected via the contact surface using wheel bolts.
  • brake bodies have areas with friction surfaces through which the braking effect is realized in conjunction with rubbing brake pads.
  • Brake bodies are currently either coated with short-term corrosion protection in the area of the friction surfaces or with a Long-term corrosion protection.
  • the short-term corrosion protection only protects the brake disc against corrosion for a short period of time and is worn away after delivery of a vehicle, for example, during the first braking operations.
  • the friction surfaces have a wear-reducing coating, which, in conjunction with the brake pads, achieves the braking effect.
  • DE 10 2009 003 161 A1 discloses a coated light metal disk and in particular a brake disk, which is provided with a support disk, in particular made of a thermally resistant light metal alloy, and a heat-insulating friction layer made of a metal alloy containing nanocrystals.
  • the light metal base body is coated by means of thermal spraying of a mechanically resistant metal alloy with the formation of nanoparticles in the spray layer.
  • a brake disc for a vehicle comprising a base body made of a metallic material, in particular gray cast iron, which has at least one friction surface with a coating made of a hard material, wherein the base body has a removed material thickness under the coating in the direction parallel to the axis of the brake disc, wherein the base body has a material thickness removed in the direction parallel to the axis of the brake disc by approximately the layer thickness of the coating, or up to +/- 20% more or less, preferably +/- 10%, based on the layer thickness of the coating.
  • a brake disc and method for its production are known in which a brake disc body made of a cast iron material is provided with a metallic, non-ceramic coating at least in sections and at least on one of its axial outer surfaces.
  • the existing oxide layer or other contaminants are removed from the contact surface removed and the contact surface is roughened by irradiation with fine particles in order to increase the adhesion of the wear layer.
  • the wear layer is then sprayed onto the contact surface of the base body using a flame, arc or plasma injection molding coating process.
  • a brake disk and a method for producing a brake disk in which a brake disk has a base body with at least one contact surface to which a wear layer is applied, wherein the at least one contact surface of the base body is pretreated to create a bond between the wear layer and the base body.
  • the at least one pretreated contact surface of the base body has a surface topography modified by laser radiation with at least one predetermined parameter in order to improve the positive adhesion between the wear layer and the base body.
  • the known manufacturing processes have the major disadvantage that a large amount of material must be taken into account when casting the brake disc so that after the first mechanical processing of the friction surfaces, which is known to be carried out by turning, a minimum design thickness of the disc-like friction surfaces to be coated, consisting exclusively of the basic structure on the friction band surface, is guaranteed.
  • This machining allowance which is present as chip volume after turning and can be described as the feed of the machining tools, can be up to several millimeters, depending on the shape and position tolerances achieved during the casting process.
  • the known manufacturing processes are costly and complex, as a high proportion of material waste is generated by the mechanical processing of the base body in preparation for coating with a wear and/or corrosion protection layer.
  • the object of the present invention is to provide a manufacturing method for a brake body that is cost-effective, saves material and is simple.
  • the object of the invention is to provide a brake body that is weight-optimized and has improved wear and corrosion protection.
  • a brake body which consists of a metallic base body made of a cast material which has at least one disc-like or ring-like friction surface, wherein the cast metallic base body has a basic structure, an intermediate structure with defects and a cast skin layer forming the cast surface, wherein in the metallic body at least in the area of the intended friction surface the cast skin layer is at least partially removed with a first machining step, then a wear and/or corrosion protection layer is arranged at least on the intermediate structure with defects, wherein subsequently at least the surface of the wear and/or corrosion protection layer can be modified with a second mechanical machining step.
  • the cast skin layer is completely removed.
  • the first machining step produces a graded thickness of the friction surfaces. It is also advantageous if at least the surface of the intermediate structure containing defects is processed by means of laser radiation before coating.
  • the wear and/or corrosion protection layer is arranged in one or more layers.
  • a graded layer thickness and/or material composition of the wear and/or corrosion protection layer is arranged.
  • the wear and/or corrosion protection layer is produced by means of direct metal deposition (DMD), direct energy deposition (DED), thermal spraying, plasma nitriding, plasma nitrocarburizing, thermochemical processes and/or with the possible use of technical gases.
  • DMD direct metal deposition
  • DED direct energy deposition
  • thermal spraying plasma nitriding
  • plasma nitrocarburizing thermochemical processes and/or with the possible use of technical gases.
  • the wear and/or corrosion protection layer is coated with at least one hard metal, metal alloy, metal matrix with embedded carbides and/or oxide ceramics or a combination material of carbides and/or oxide ceramics.
  • a metallic buffer layer is arranged before coating the wear and/or corrosion protection layer.
  • the brake body produced according to the method according to the invention has at least one metallic base body made of a cast material with at least one disc-like or ring-shaped friction surface, wherein the cast metallic base body has at least one basic structure, an intermediate structure with defects and a cast skin layer, wherein a wear and/or corrosion protection layer is arranged at least on the surface of the intermediate structure with defects, and wherein at least the friction surface has a joining zone which is formed at least from the wear and/or corrosion protection layer and the intermediate structure with defects.
  • the wear and/or corrosion protection layer is arranged on the flawed intermediate structure and the cast skin layer, wherein the surface portion of the cast skin layer present on the friction surface amounts to up to 90%.
  • the wear and/or corrosion protection layer is applied in a material-locking manner by means of a thermal coating process.
  • the layer thickness of the wear and/or corrosion protection layer as well as at least the intermediate structure containing defects is graded.
  • the wear and/or corrosion protection layer is formed in one layer or in multiple layers.
  • the layer thickness of the wear and/or corrosion protection layer is 50 pm to 200 pm for a single-layer coating or 125 pm to 250 pm for a two-layer coating.
  • At least the cooling structures are coated with an Al-based corrosion protection layer.
  • a graduated thickness of the friction surfaces and/or a graduated material composition of the wear and/or corrosion protection layer is present.
  • the solution according to the invention provides a method for producing a brake body that is cost-effective, saves material and is simple.
  • a brake body is provided that is weight-optimized and has improved wear and corrosion protection.
  • a metallic base body is created which, in the case of metallic cast blanks made of steel or gray cast iron, essentially has three different areas.
  • a first area is the casting skin edge zone.
  • a casting skin edge zone is understood to be a limited area on the surface of the casting which, depending on the material, can have different defects and deviations from the basic structure inside the casting.
  • this casting skin edge zone of the casting there is a casting skin layer which forms when the melt solidifies due to direct contact with the casting mold and the associated increased cooling rate and which is present as a fine crystalline structure.
  • a cast structure which, according to the invention, is to be understood as an intermediate structure with defects.
  • This intermediate structure contains undesirable defects within the structure.
  • These can be non-metallic inclusions, gases or transformations in microscopic or macroscopic dimensions.
  • Non-metallic inclusions are also to be understood as graphite inclusions in degenerate forms in gray cast iron materials.
  • the ordered forms of graphite include, for example, lamellar graphite or spheroidal graphite, which, according to the invention, are explicitly not to be understood as degenerate forms of graphite.
  • the basic structure Inside the metallic base body, a basic structure is formed that has the properties of the desired base material.
  • the main characteristics of the basic structure are that, in contrast to the intermediate structure, there are essentially no defects and the structure is essentially homogeneous.
  • the basic structure can have an ordered graphite arrangement in the form of lamellar graphite or spheroidal graphite, which enables particularly cost-effective use of materials and economical processing of the metallic base body.
  • the metal base body particularly in the area of the disc-shaped friction surface in brake discs or the ring-shaped friction surface in brake drums, has a layer of cast skin with a thickness of 0.05 mm to 0.2 mm. It is also known that the cast skin layer and the intermediate structure with defects must be completely removed from the cast blank in order to prepare the area of the base structure for the subsequent coating with a wear and/or corrosion protection layer or to supply it to the market as a conventional uncoated brake disc.
  • the method according to the invention provides a metallic base body made of a cast material in which a smaller amount of steel or iron cast material is used, since according to the invention, after the metallic base body has been cast, the cast skin edge zone is machined in a first machining step and only the cast skin layer is at least partially removed in order to arrange a wear and/or corrosion protection layer at least on the intermediate structure with defects.
  • At least partial removal of the cast skin layer is to be understood as meaning that in any case areas of the intermediate structure with defects are freed from the cast skin layer, whereby after the mechanical processing of the friction surfaces the surface proportion of the cast skin layer can be up to 90%.
  • the first machining process can advantageously be carried out by grinding, laser radiation, abrasive processes and/or chemical processes.
  • grinding the metal base body enables a homogeneous surface with higher dimensional accuracy and improved axial runout of the brake body, so that the desired target geometry of the surface to be coated is achieved with the first machining operation.
  • the precise grinding of the friction band surfaces of the base body also results in an increased uniform layer thickness of the wear and/or corrosion protection layer and a reduction in the chip volume during finishing.
  • a further advantage is that grinding partially down to the intermediate structure with defects results in significantly lower tool wear, as this avoids unwanted vibrations and tool impact during machining in the area of the intermediate structure with defects compared to the familiar multi-stage turning of the surface.
  • the advantageous effects of grinding are also supplemented by the fact that the material is only machined down to the intermediate structure with defects, which means that the tool is subjected to less stress than when turning due to the irregular material properties and existing defects in the structure.
  • the high accuracy of mechanical machining by grinding reduces the infeed dimensions of the finishing process, as any shape deviations that occur need to be infed to a lesser extent. This reduces the cycle time, reduces the chip volume and increases the process capability of the mechanical finishing process.
  • the cast base body can be manufactured with such a high manufacturing accuracy that the first step of mechanical machining of the friction surfaces and/or contact surfaces can be greatly simplified or eliminated entirely.
  • At least the surface of the friction surface which is essentially present as an intermediate structure with defects, is coated with a wear and/or corrosion protection layer using a coating process.
  • a coating process By coating the surface of the intermediate structure with defects with the wear and/or corrosion protection layer, at least the area of the friction surface has a joining zone that is formed at least from the wear and/or corrosion protection layer and the intermediate structure with defects.
  • cooling structures are dimensioned with an oxidation allowance in the form of a material addition, since oxidation reactions reduce the strength of the material during daily use of the brake body. This applies both to the ventilation bars between the friction surfaces of an internally ventilated brake disc and to the cooling structures of a brake drum.
  • At least the cooling structures are coated with a permanently acting and materially bonded corrosion protection layer.
  • the coating of at least the cooling structures can be particularly advantageously carried out with an Al-based corrosion protection layer and the corrosion protection layer can be arranged by a final heat treatment at least in the material of the ventilation webs through diffusion processes.
  • a particularly good material bond between the material of the metallic base body and the material of the wear and/or corrosion protection layer can be achieved if the wear and/or corrosion protection layer is produced by means of a thermal coating process, particularly advantageously by means of direct metal deposition (DMD), direct energy deposition (DED), thermal spraying, plasma nitriding, plasma nitrocarburizing and/or a thermochemical process and with the possible use of technical gases.
  • DMD direct metal deposition
  • DED direct energy deposition
  • thermal spraying plasma nitriding
  • plasma nitrocarburizing plasma nitrocarburizing
  • a graded geometry in order to improve the thermal balance in the brake body, can be created with the first mechanical processing of the friction surface, by means of which a graded layer thickness is later achieved during the coating. This ensures that improved heat conduction and thus a more even heat distribution within the brake body is made possible in order to compensate for different heat developments in the respective circumference of the friction surface. As a result, a homogenization of the heat flow within the metallic base body over the entire friction surface is achieved.
  • a graded layer thickness and/or material composition of the friction surface is provided.
  • At least the surface of the intermediate structure with defects is at least partially improved by means of laser irradiation.
  • Laser irradiation of the friction surface has the significant advantage that defects and contamination on the surface, for example due to existing graphite nests or grinding residues, are reduced. Furthermore, the reduction of carbon close to the surface increases the available iron content in the bonding zone of the coating and reduces the uneven alloying of carbon. The improvement of the surface makes it possible to achieve a high layer and bonding quality with a single layer coating using a coating process in terms of the increased material-bondable metal portion on the prepared friction belt surface.
  • a particularly thin wear and/or corrosion protection layer can be provided, which in particular leads to a significant reduction in the material of the brake disc during the casting process of the metallic base body.
  • the wear and/or corrosion protection layer of the friction surface can advantageously have a layer thickness of 50 pm to 200 pm with a single-layer coating and 125 pm to 250 pm with a two-layer coating.
  • the surface of the friction surface can be coated with the wear and/or corrosion protection layer using at least one hard metal, a metal alloy, a metal matrix with embedded carbides and/or oxide ceramics or a combination material of carbide and oxide ceramics.
  • carbide materials in particular, materials adapted to the load spectrum that acts within the wear and/or corrosion protection coating can be used. It is conceivable that mixed carbides and cermets could be used, for example, which have advantages in terms of their thermal expansion in the metal matrix composite and the associated reduction of crack structures and residual stresses, their good thermal oxidation resistance, advantageous wettability compared to the matrix material and their improved processing with the thermal coating processes.
  • a metallic buffer layer is arranged before the wear and/or corrosion protection layer is coated.
  • the technical advantages of the manufacturing process according to the invention and the brake body produced thereby are that - the simple machining and removal of the cast skin layer enables a direct coating on the friction belt surface of the defective intermediate structure and/or partial cast skin layer, thereby reducing the chip volume,
  • thermocyclic load collective the thermal resistance between the metallic base body and the wear and/or corrosion protection layer is adapted to the thermocyclic load collective
  • the thermal coating process enables an improved material bonding of the wear and/or corrosion protection layer
  • the second mechanical processing for surface modification improves the friction belt surface and can be implemented more efficiently.
  • An internally ventilated brake disc for a mid-range passenger car, manufactured using a casting process, is provided with a hardness of 190 - 230 HV [3] in the area of the lamellar basic structure.
  • the brake disc consists of a metallic base body made of gray cast iron and has two friction surfaces arranged opposite one another as well as a contact surface for fastening the brake disc to a rotating axle. The two friction surfaces are connected by ventilation webs. After the metal base body has been removed from the casting mold, it is clamped centrally via the ventilation channels formed using workpiece clamping devices and the intended contact surface is machined.
  • the existing cast skin layer is essentially completely removed by grinding on both sides of the friction belt, down to the intermediate structure with defects, which is a cast structure with a disordered graphite arrangement.
  • the surface partially freed of the cast skin layer which shows a cast structure with a disordered graphite arrangement and areas with a remaining cast skin layer, is irradiated with a CO2 laser for surface standardization and the surface is almost completely cleaned of grinding process and graphite residues.
  • the brake disc is then fed into a thermal coating system, preheated inductively to 185 +/- 5°C, measured on the surface to be coated, and a first corrosion protection layer made of a 316L stainless steel alloy is coated on the surface area intended as the friction surface using laser deposition welding under a locally generated argon protective gas atmosphere and a material-locking connection is created between the surface area of the cast structure with a disordered graphite arrangement, individual surface areas with a cast skin layer and the stainless steel alloy.
  • a second layer consisting of a stainless steel alloy 430L with TiC hard material particles embedded in the metal matrix is applied to the first layer by means of laser cladding.
  • the wear and corrosion protection layer produced is then processed and modified in a second mechanical processing process by grinding. No mechanical processing of the surfaces takes place in the area of the ventilation channels.
  • the structures of the ventilation channels are coated with an AISi-12 alloy using LBD spraying and then heat treated.
  • the friction surfaces have a composite hardness of 500-750 HV [10] and long-term wear and corrosion protection.
  • the cast material to be used is reduced by 2.9 kg and the weight of the brake disc is reduced by 1.1 kg based on a brake disc with a total friction band area of approx. 1000cm 2 .

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Braking Arrangements (AREA)

Abstract

L'invention concerne un procédé de production d'un corps de frein et un corps de frein. L'objectif de l'invention est de développer un procédé de production d'un corps de frein qui soit économique, économe en matériaux et simple. En outre, l'objectif de l'invention est de concevoir un corps de frein dont le poids est optimisé et qui présente une meilleure protection contre l'usure et la corrosion. À cet effet, un procédé de production de corps de frein, qui est constitué d'un corps de base métallique à partir d'un matériau de coulée, qui présente au moins une surface de frottement en forme de disque ou d'anneau, le corps de base métallique coulé présentant une structure de base, une structure intermédiaire présentant des défauts et une couche de peau de coulée formant la surface de coulée, cete couche de peau de coulée étant au moins partiellement éliminée dans le corps métallique au moins dans la zone de la surface de frottement prévue avec un premier usinage, une couche de protection contre l'usure et/ou la corrosion étant ensuite disposée au moins sur la structure intermédiaire présentant des défauts, au moins la surface de la couche de protection contre l'usure et/ou la corrosion pouvant ensuite être modifiée à l'aide d'un deuxième usinage mécanique.
EP23836353.5A 2022-12-20 2023-12-14 Procédé de production d'un corps de frein et corps de frein Pending EP4638980A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022134171.2A DE102022134171B4 (de) 2022-12-20 2022-12-20 Verfahren zur Herstellung eines Bremskörpers und Bremskörper
PCT/EP2023/085971 WO2024132883A2 (fr) 2022-12-20 2023-12-14 Procédé de production d'un corps de frein et corps de frein

Publications (1)

Publication Number Publication Date
EP4638980A2 true EP4638980A2 (fr) 2025-10-29

Family

ID=89473874

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23836353.5A Pending EP4638980A2 (fr) 2022-12-20 2023-12-14 Procédé de production d'un corps de frein et corps de frein

Country Status (4)

Country Link
EP (1) EP4638980A2 (fr)
CN (1) CN120344781A (fr)
DE (1) DE102022134171B4 (fr)
WO (1) WO2024132883A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023136185A1 (de) * 2023-12-21 2025-06-26 Bayerische Motoren Werke Aktiengesellschaft Bremsscheibe, Fortbewegungsmittel und Verfahren zur Beschichtung einer Bremsscheibe

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10056161A1 (de) 2000-11-13 2002-05-29 Knorr Bremse Systeme Bremsscheibe und Verfahren zu deren Herstellung
DE10203507A1 (de) 2001-05-15 2003-01-09 Volkswagen Ag Bremsscheibe für ein Fahrzeug sowie Verfahren zu ihrer Herstellung
DE102005008569A1 (de) 2005-02-24 2006-10-05 FNE Forschungsinstitut für Nichteisen-Metalle Freiberg GmbH Reibelement und Verfahren zu dessen Herstellung
DE102009003161A1 (de) 2009-05-15 2010-11-18 Ford Global Technologies, LLC, Dearborn Beschichtete Leichtmetallscheibe und Verfahren zu deren Herstellung
DE102011075821A1 (de) 2011-05-13 2012-11-15 Robert Bosch Gmbh Bremsscheibe und Verfahren zum Herstellen einer Bremsscheibe
DE102011056307A1 (de) 2011-12-13 2013-06-13 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Bremsscheibe und Verfahren zum Herstellen derselben
DE102011089125B4 (de) 2011-12-20 2021-10-21 Robert Bosch Gmbh Bremskörper
DE102015204813B4 (de) 2014-03-26 2019-05-02 Ford Global Technologies, Llc Verfahren zur Herstellung einer Bremsscheibe sowie Bremsscheibe

Also Published As

Publication number Publication date
DE102022134171B4 (de) 2026-01-15
WO2024132883A3 (fr) 2024-08-22
DE102022134171A1 (de) 2024-06-20
WO2024132883A2 (fr) 2024-06-27
CN120344781A (zh) 2025-07-18

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