Multi-part brake disc, friction disc ring, fastening element and brake disc production method

Abstract

The invention relates to a multi-part brake disc, in particular a lightweight brake disc, comprising a friction disc ring part and a receiving cup part, the friction disc ring part being arranged radially outside the receiving cup part in a torque-resistant manner. Further, the friction disc ring part and the receiving cup part are operably connected by at least one elongate fastening element, where the at least one elongate fastening element is arranged in the through hole of the receiving cup part and the bore hole of the friction disc ring part. The multi-part brake disc is characterized in that the at least one elongated fastening element is arranged simultaneously in the receiving cup part and the friction disc ring part only in an inserted manner, and the at least one elongated fastening element is fixed in the friction disc ring part in a frictional locking manner.

Description

Summary of the invention

[0001] The invention relates to a multi-component brake disc, in particular a lightweight brake disc, having a friction disc ring component and a receiving cup component, wherein the friction disc ring component is arranged radially outside the receiving cup component in a torque-proof manner, wherein the friction disc ring component and the receiving cup component are additionally operatively connected by at least one elongated fastening element, wherein the at least one elongated fastening element is arranged in a through hole of the receiving cup component and in a hole of the friction ring part.

[0002] The invention relates to a friction disk ring component for a multi-component brake disk.

[0003] The invention also relates to a fastening element for a multi-component brake disc.

[0004] The invention relates to a method for manufacturing a brake disc made of multiple functional components, wherein a friction disc ring component with an inner diameter is arranged on a radially outer receiving surface provided with an outer diameter of a receiving cup component.

[0005] Universal multi-component brake discs are known in the prior art and can be used, for example, for vehicles, in particular motor vehicles such as cars, trucks, etc. Here, the brake disc can be fastened to the wheel hub of the vehicle by means of a screw connection. Such brake discs usually consist of several parts, namely the brake discs each have a usually cup-shaped receiving part to which the actual friction disc of the brake disc is attached, whereby the friction disc can interact with the brake pads of the brake system if necessary, and the cup-shaped receiving part is screwed to the wheel hub of the vehicle axle.

[0006] The present invention is based on the purpose of improving or replacing the prior art.

[0007] According to a first aspect of the present invention, the object is achieved by a multi-component brake disc, in particular a lightweight brake disc, comprising a friction disc ring component and a receiving cup component, wherein the friction disc ring component is radially arranged outside the receiving cup component in a torque-proof manner, wherein the friction disc ring component and the receiving cup component are additionally operably connected to each other by at least one slender fastening element; wherein the at least one slender fastening element is arranged in the through hole of the receiving cup portion and the hole of the friction disc ring portion, at least one slender fastening element is arranged in the receiving cup portion and the friction disc ring component only in an inserted manner, and at least one slender fastening element is arranged in the friction disc ring component in a friction locking manner.

[0008] Since the fastening element is inserted into only two functional components, an additional interaction between the functional components friction disk ring component and receiving cup component and the fastening element can be realized with a very simple construction.

[0009] In particular, complex threaded holes of the friction disk ring component and / or of the receiving cup component can be dispensed with in order to hold the fastening element on the brake disk.

[0010] In this respect, the invention allows a multi-part brake disc to be manufactured more economically.

[0011] Conceptually, the explanation is as follows:

[0012] The invention relates to solid and internally ventilated brake discs.

[0013] Here, the several through holes and the several holes can be distributed along the circumferential direction of the brake disk, and thus can also be distributed along the circumferential direction of the friction disk ring component or the receiving cup component.

[0014] In the present invention, the term "hole" refers to any type and shape of opening or hole extending in the radial direction in each functional component.

[0015] In particular, the hole can be formed as a blind hole or as a continuous hole of the friction ring component, for example also as part of the internal ventilation of the friction ring component.

[0016] In this respect, the fastening element can be at least partially integrated in the ventilation channel of the friction disk ring component or can also be arranged completely in the solid material of one friction disk of the two friction disk halves of the friction disk ring component.

[0017] In the context of the present patent application, "elongated" is understood to mean a pin having a longitudinal extension, wherein the pin is longer along its longitudinal extension than its transverse extension, in particular more than 20% longer than its transverse extension, in particular more than 30% longer than its longitudinal extension, wherein the transverse extension is preferably its diameter and the longitudinal extension preferably extends along the longitudinal axis of the fastening element, in particular its axis of rotational symmetry.

[0018] The friction disk ring component is preferably manufactured from a cast material and the receiving cup component is preferably composed of a sheet metal structure.

[0019] As with drilled holes, through holes are best designed to be completely unthreaded.

[0020] In particular, by means of the operable connection between the fastening element, the friction disk ring element and the receiving cup element described here, an axial locking can be achieved on the multi-component brake disk, thereby preventing an unintentional axial displacement of the friction disk ring element and the receiving cup element along the rotation axis of the multi-component brake disk.

[0021] If at least one elongated fastening element is arranged in the friction disk ring component by crimping, the fastening element can be fixed particularly reliably in the friction disk ring component. Crimping can be achieved by simply knocking the fastening element from the through hole of the receiving cup component into the bore of the friction disk ring component.

[0022] The connection, in particular the connection between the fastening element and the friction disk ring component, can be further improved if at least one elongated fastening element is arranged in a form-fitting manner in the friction disk ring component.

[0023] In particular, the form-fit connection makes it possible to reduce the compressive forces acting on the interior of the material of the friction disk ring component when the fastening element is inserted into the friction disk ring component.

[0024] In this respect, it is advantageous if the at least one elongated fastening element is arranged in the friction disk ring component in a form-fitting manner.

[0025] If the at least one elongated fastening element and the friction disk ring component are at least partially nested in one another, the occurrence of disadvantageous internal pressure forces in the friction disk ring component can be avoided or at least reduced.

[0026] In particular, the above effect can be achieved if the fastening element interacts with the friction disk ring component primarily via an appropriate toothed structure. In other words, the protrusions on the cover surface of the fastening element interact primarily with the material of the friction disk ring component, thereby reducing the forces acting on the material inside the borehole, especially compared to a fastening element with a smooth cover surface.

[0027] It is an advantageous embodiment if the at least one elongated fastening element has a surface structure, preferably a directional surface structure, at least partially on its cladding surface.

[0028] Due to the provision of a suitable surface structure on the outside of the fastening element, a positive connection between the fastening element and the friction disk ring component can be achieved in a particularly advantageous manner within the meaning of the invention.

[0029] Suitable surface structures can be designed in many ways. The design is particularly simple if the surface structure comprises grooves, ridges or similar structures.

[0030] If the surface structure preferably extends in the longitudinal direction of the elongated fastening element, the fastening element can be introduced with relatively low insertion forces, in particular into the friction disk ring component.

[0031] In this case, the surface structure can be formed over the entire surface or over a portion of the surface of the fastening element.

[0032] In any case, the surface structure, in particular the grooves therein, is preferably designed such that when the friction disk ring component expands radially, the receiving cup component can be moved therewith, preferably in the same proportion.

[0033] A positive connection can be provided particularly advantageously if at least one elongated fastening element is pressed into the material of the friction disk ring component via at least one surface structure.

[0034] As mentioned above, the fastening element according to the present invention can be designed in various forms.

[0035] Preferably, however, the fastening element is designed as a pin element which is fixedly arranged at least in the friction disk ring component, for example as a cylindrical pin, a grooved pin, a rivet pin, a dowel pin or the like.

[0036] In this respect, it is advantageous if the at least one elongated fastening element is a pin element.

[0037] In particular, a longitudinally slotted pin element is an advantageous design, since it allows an overload protection to be formed on the fastening element.

[0038] In this respect, it is expedient if the fastening element is designed as a spring pin.

[0039] Furthermore, it is particularly advantageous if the at least one elongated fastening element is a hollow pin element. By means of the hollow pin element, additional ventilation, in particular additional internal ventilation, of the multi-component brake disc friction disk ring components can be achieved particularly easily.

[0040] Of course, if this is advantageous for a particular application, the fastening element can also be made of solid material. However, when the fastening element is made of solid material, its weight increases significantly, which disadvantageously increases the rotating mass on the brake disc.

[0041] If the at least one elongated fastening element is a high-strength spring pin (clamping bush), it can still reliably withstand high shear forces.

[0042] This also makes it possible to achieve the properties of a solid pin without accepting the disadvantages of a solid pin in assembly.

[0043] Furthermore, it has been shown that the production of current multi-component brake discs can be further improved if the elongated fastening element has toothing. By providing teeth that are offset from one another on the toothing, additional axial tension can be achieved on the multi-component fastening element. Slotted fastening elements with toothing are also often referred to as "Connex spring pins".

[0044] By means of such a tooth groove, a high fixing strength can be achieved both on the receiving cup part and on the friction disk ring part. Such a tooth groove is usually also referred to as a shaft groove.

[0045] Furthermore, any deviations caused by drilling and axis distance tolerances can be easily compensated if the elongated fastening elements have toothing, especially high-strength spring pins.

[0046] In any case, such toothing also provides for better roundness, which means that an elongated fastening element with toothing can also be used as a precise shaft element.

[0047] Ultimately, if designed properly, such structures can simplify both assembly and disassembly, although in this case, disassembly is viewed more from the perspective of improved recycling.

[0048] In particular, this makes it possible to provide a precision spring pin with a particularly high positioning accuracy and fixing strength.

[0049] It is particularly advantageous if high-strength spring pins with toothing are used in accordance with DiN EN ISO 8752 (2009-10).

[0050] Sufficient resistance may be provided if the elongated fastening element has an outer diameter of 4.5 mm or more, preferably 5.5 mm or more, more preferably 6 mm or more, in the unloaded state.

[0051] If the outer diameter of the elongated fastening elements in the unloaded state is 9 mm or less, preferably 8 mm or less, more preferably 6 mm or less, the mass or weight of each fastening element can be kept low.

[0052] If the wall thickness of the elongated fastening element is 0.8 mm or more, preferably 1 mm or more, more preferably 1.2 mm or more, based on the overall wall thickness of the elongated fastening element, especially with a rolled body, the elongated fastening element can have sufficient strength.

[0053] If the wall thickness of the elongated fastening element is 2 mm or less, preferably 1.6 mm or less, more preferably 1.2 mm or less, the elongated fastening element can be mounted on a multi-component brake disc in a weight-optimized manner.

[0054] Furthermore, it is advantageous if the length of the elongated fastening element is 5 mm or more, preferably 8 mm or more, more preferably 10 mm or more. By selecting the length of the fastening element in this way, it can always be ensured that the elongated fastening element penetrates the base body of the friction disk ring component sufficiently deeply, in particular almost independently of the thickness of the receiving cup component.

[0055] If the length of the elongated fastening element is 18 mm or less, preferably 15 mm or less, more preferably 12 mm or less, the elongated fastening element can be designed advantageously in terms of mass or weight, while still ensuring a sufficiently large friction surface between the fastening element and the friction disk ring component.

[0056] In particular, a length of 10 mm ± 0.25 mm is particularly advantageous in order to always ensure a good operable connection between the receiving cup part and the friction disk ring part by means of the elongated fastening element, which protrudes at least 2 mm inside the receiving cup part.

[0057] In order to be able to easily insert the slender fastening element into the through hole of the receiving cup component and subsequently into the drilled hole of the friction disc ring component, especially in the case of an automated insertion process, it is advantageous if the slender fastening element has chamfers at its two ends, especially with a chamfer length of 1.30 mm ± 0.1 mm and a chamfer width of 0.40 mm or less.

[0058] Furthermore, it is advantageous if the at least one elongated fastening element has a mass of 2.2 grams or less, preferably 1.8 grams or less, more preferably 1.2 grams or less, since this may have a favorable effect on the overall mass of the multi-component brake disc.

[0059] Sufficient strength can still be achieved if the mass of the at least one elongated fastening element is 0.4 g or more, preferably 0.6 g or more, more preferably 0.8 g or more.

[0060] It has been found that a particularly advantageous balance between weight (low rotating and vibrating masses) and good strength is achieved with a fastening element mass of 1 gram.

[0061] In particular, it is advantageous if the mass of a single elongated fastening element depends on the number of fastening elements. For example, the mass of each individual fastening element can be selected to be smaller the greater the number of fastening elements mounted on a multi-component brake disc.

[0062] Preferably, the number of fastening elements on a multi-component brake disc is 18 or less, preferably 15 or less, more preferably 13 or less, and / or is 8 or more, preferably 10 or more, more preferably 12 or more.

[0063] The fewer the number of fastening elements on a multi-component brake disc, the less mass or weight they add to the multi-component brake disc. At the same time, due to the reduced number of elongated fastening elements, the number of form-fitting connection points between the receiving cup part and the friction disc ring part is also reduced.

[0064] However, the greater the number of fastening elements, the more mass or weight these elongated fastening elements add to the multi-component brake disc, resulting in an overall increase in mass that needs to be accelerated, in particular on the wheel suspension system of the vehicle.

[0065] It has been found that a number of 13 elongated fastening elements is particularly advantageous when the outer diameter of the friction disk ring component is approximately 323 mm, in particular when the outer diameter of the receiving cup component is approximately 165 mm.

[0066] Furthermore, the fastening elements may be made from a variety of materials.

[0067] If at least one elongated fastening element has a base body made of steel, in particular spring steel, for example 55Si7 hardened spring strip steel or the like, and the material itself has particularly good strength, then the fastening element can be used in a particularly economical manner on a multi-component brake disc.

[0068] If the at least one elongated fastening element has a cylindrical base body, the fastening element can be inserted very easily through the through-opening of the receiving cup component into the bore of the friction disk ring component.

[0069] It will be appreciated that the fastening element may also have other basic shapes, such as oval, rectangular or the like, if this is advantageous for a particular application.

[0070] If at least one elongated fastening element has a head region and a shaft region, the depth of insertion of the fastening element into the friction disk ring component can be advantageously limited. By means of the head region, the fastening element can advantageously be supported on the inner side of the receiving cup component.

[0071] In order to further enable ventilation, ie cooling, of the region of the fastening element in the vicinity of the friction disk ring component, it is advantageous if at least one of the elongated fastening elements has a ventilation opening for ventilating the friction disk ring component.

[0072] In this way, additional heat inside the friction disk ring component can be taken out or additional air can be conveyed into the interior of the friction disk ring component via the fastening element.

[0073] In a further advantageous embodiment, at least one of the elongated fastening elements and / or the receiving cup part has a surface coating, in particular an anti-corrosion coating.

[0074] Suitable surface coatings, for example coatings to prevent contact corrosion, can provide improved protection for multi-component brake discs during continuous operation.

[0075] In this case, the fastening element or the receiving cup part can be provided with a suitable surface coating only partially or completely. A locally provided surface coating can further reduce the manufacturing costs.

[0076] An improved embodiment of the anti-loss device is advantageous, by means of which the friction disk ring component and the receiving cup component can be fixed to each other, in particular in the axial direction, wherein the anti-loss device comprises at least one friction connection and / or a form-fitting connection formed by an elongated fastening element.

[0077] As mentioned above, this also prevents unnecessary axial displacement between the friction disk ring component and the receiving cup component.

[0078] It is advantageous if the anti-loss device has a hardness gradient arrangement, which gradually decreases from the at least one elongated fastening element to the friction disk ring component. This allows the harder fastening element to penetrate and fix more advantageously in the softer material of the friction disk ring component.

[0079] The functional assembly of the friction disk ring component and the receiving cup component can be connected more advantageously if the receiving cup component has a cylindrical receiving area for receiving the interior of the ring component and its cylindrical receiving surface is arranged radially outwards.

[0080] Preferably, this creates an annular receptacle for the friction disk ring element on the receiving cup element.

[0081] If the receiving cup assembly has an outer diameter D a The cylindrical receiving area of ​​the friction disk ring component has an inner diameter D i The cylindrical area and the ratio D a / D i is 1.01 or greater, preferably 1.02 or greater, then a further applicable embodiment can be created.

[0082] In this case, if the outer diameter of the cylindrical receiving area of ​​the receiving cup component is D a , the inner diameter of the friction disc ring is D i , and the ratio D a / D i It is advantageous if it is 1.06 or less, preferably 1.05 or less.

[0083] Preferably, the target diameter ratio D a / D i Between 1.02 and 1.04.

[0084] The diameter ratio D a / D i A particularly stable operational connection between the friction disk ring part and the receiving cup part can be achieved.

[0085] With D a / D iThe dimensions that are relevant to the ratio refer to the maximum inner diameter on the friction disk ring component and the maximum outer diameter on the receiving cup component. Tolerances regarding roundness deviations are to be neglected.

[0086] In addition to the advantage of a particularly stable operating connection between the friction disk ring and the receiving cup, studies have shown that if the diameter ratio D a / D i Being significantly smaller than the above range is not without advantages, and may even be more advantageous.

[0087] In particular, this option allows for a significant improvement in assembly capabilities without serious consequences in terms of the operational connection of the friction disk ring component to the receiving cup component, especially in the production of multi-component brake disks. This includes maintaining good torsional resistance when assembling the functional components together, especially during the production of through-holes and drilled holes in the relevant functional components.

[0088] In this case, a preferred embodiment is that the receiving cup part has an outer diameter D a The cylindrical receiving area of ​​the friction disk ring component has an inner diameter D i The area and ratio D a / D i It is 1.00088 or more, preferably 1.00089 or more, and more preferably 1.0009 or more.

[0089] The conditions selected here allow particularly good assembly properties between the friction disk ring component and the receiving cup component, while still providing good torsional resistance.

[0090] If the receiving cup assembly has an outer diameter D a The friction disk ring has an inner diameter D i The area and ratio D a / D i If the friction disk ring component is 1.001 or less, preferably 1.000999 or less, and more preferably 1.00091 or less, the anti-twist safety during assembly can be advantageously improved. This can ensure a very tight connection between the friction disk ring component and the receiving cup component.

[0091] In addition, if the receiving cup component has an outer diameter D a The friction disk ring has an inner diameter D i The area and ratio D a / D i It is advantageous if the friction disk ring component is 1.00027 or less, preferably 1.00025 or less, and more preferably 1.00022 or less. This ensures a very tight connection between the friction disk ring component and the receiving cup component.

[0092] If the receiving cup assembly has an outer diameter D a The friction disk ring has an inner diameter D i The area and ratio D a / D i If the angle is 1.00019 or greater, preferably 1.0002 or greater, and more preferably 1.00021 or greater, sufficient anti-twist protection can still be ensured during assembly while ensuring good assembly capability.

[0093] In particular, if the ratio D a / D i The ratio is 1.000909, and the assembly performance can still be guaranteed. This ratio is based on the preferred maximum outer diameter of the receiving cup component of 165.15 mm and the preferred minimum inner diameter of the friction disk ring component of 165 mm.

[0094] If the ratio D a / D i If the ratio is 0.999, the friction disk ring component and the receiving cup component can still achieve very good friction connection during assembly, thereby having good anti-torsion ability. This ratio is based on the preferred minimum outer diameter of the receiving cup component of 165.05 mm and the preferred maximum inner diameter of the friction disk ring component of 165.063 mm.

[0095] If the inner diameter D of the friction disc ring component i If the diameter of the friction disc ring component is 164.9 mm or larger, preferably 165 mm or larger, and more preferably 165.05 mm or larger, a favorable interference fit connection can be achieved between the friction disc ring component and the receiving cup component.

[0096] Similarly, if the inner diameter D of the friction disc ring component i If the diameter of the friction disc ring component is 166 mm or less, preferably 165.063 mm or less, and more preferably 165 mm or less, a favorable interference fit connection can be achieved between the friction disc ring component and the receiving cup component.

[0097] If the outer diameter D of the receiving cup part i If the diameter is 164.95 mm or larger, preferably 165 mm or larger, and more preferably 165.05 mm or larger, then a suitable mating component that facilitates an interference fit connection can be provided.

[0098] As already mentioned above, an operational connection between the fastening element and the friction disk ring component can be realized particularly easily if the bore hole is provided in the friction disk ring component without a thread.

[0099] Furthermore, it is advantageous if the hole drilled into the friction disk ring component has two different hole diameter ranges, such a design enables the drilled hole to accommodate two different functional areas and thus also to assume two functions.

[0100] In this case, it is particularly advantageous if the larger bore diameter range of the borehole is arranged radially more inwardly and the smaller bore diameter range of the borehole is arranged radially more outwardly. This makes it easier to position the fastening element in the radially outer larger bore diameter region.

[0101] In this respect, a preferred embodiment also provides that at least one elongated fastening element is fastened in a region of the smaller aperture which is arranged radially further outward.

[0102] If, on the one hand, at least one elongated fastening element is arranged in a larger bore area arranged radially further inwards, and on the other hand material of the receiving cup component can be introduced into the bore in the friction disk ring component, the bore can easily assume a variety of different functions due to the structural design.

[0103] Furthermore, it is advantageous if the edge region of the through-opening of the receiving cup part can be moved into a larger aperture region arranged radially further inwards.

[0104] The bore in the friction disk ring component can therefore also assume additional functions, in addition to the fastening element, such as serving as a receiving space, a spare space or an introduction space for accommodating material areas of the receiving cup component or material residues.

[0105] It is therefore advantageous if the bore has an introduction space for introducing the receiving cup material.

[0106] Preferably, the aperture of the introduction space is larger than the outer diameter of the at least one fastening element arranged in the introduction space.

[0107] In this way, there is sufficient space in the introduction space between the outer surface of the fastening element and the inner wall of the drilled hole to receive the introduction of material of the cup part.

[0108] Furthermore, it is particularly advantageous if the friction disk ring component is provided with crack prevention holes at the respective ends of the boreholes radially further outwards.

[0109] By means of such crack prevention holes, crack generation which may originate from the drilling hole can be prevented, so that corresponding cracks cannot propagate further in the material of the friction disk ring component.

[0110] Preferably, the crack prevention holes are arranged perpendicularly to the drilled holes.

[0111] In order to ensure that the at least one elongated fastening element can be well and reliably fixed in the borehole, it is possible if the through-hole of the receiving cup component and the borehole of the friction disk ring component each have a hole diameter LD i , and at least one elongated fastening element has a pin diameter SD a , then the ratio SD a / LD i It should be 1.0551 or greater, preferably 1.0593 or greater, and more preferably 1.0612 or greater.

[0112] If the ratio SD a / LD i A diameter of 1.0751 or less, preferably 1.0712 or less, and more preferably 1.0631 or less, may facilitate the insertion of at least one elongated fastening element into the corresponding bore hole.

[0113] In this case, the ratio SD a / LD i Reference may be made to both bore holes and the at least one elongated fastening element, or to just one of the bore holes and the corresponding at least one elongated fastening element.

[0114] If the pin diameter SD of at least one elongated fastening element a The hole diameter LD of one or two drilled holes is 6.4 mm. i is 6 mm, then the ratio SD a / LD i The value of is exactly 1.06667, and the design effect of this ratio is particularly good.

[0115] If tolerances are taken into account, such as the minimum possible pin diameter SD a With the largest aperture LD i In this case, if the through hole of the receiving cup component and the drilled hole of the friction disk ring component each have an aperture LD i , and at least one elongated fastening element has a pin diameter SD a , then the ratio SD a / LD i should be 1.0345 or greater, preferably 1.0391 or greater, more preferably 1.0419 or greater, and / or the ratio SD a / LD i It should be 1.0651 or less, preferably 1.0574 or less, and more preferably 1.0461 or less.

[0116] The study found that SD a / LD iA ratio of exactly 1.04575 is particularly advantageous. For example, such a ratio can be determined by the pin diameter SD a The hole diameter LD is 6.4 mm i It is achieved with 6.12 mm.

[0117] If the tolerances were completely reversed, the maximum possible pin diameter SD would be a is about 6.7 mm, while the minimum possible diameter of the hole LD i 6 mm, then in this case, if the through hole of the receiving cup component and the drilled hole of the friction disk ring component each have a hole diameter LD i , and at least one elongated fastening element has a pin diameter SD a , then SD a / LD i The ratio of should be 1.0111 or greater, preferably 1.1011 or greater, more preferably 1.1143 or greater, and / or SD a / LD i The ratio should be 1.1199 or less, preferably 1.1187 or less, and more preferably 1.1177 or less.

[0118] For this hole or pin size, SD a / LD i A ratio of exactly 1.11667 has proven to be particularly suitable.

[0119] According to a second aspect of the invention, the object is achieved by a friction disk ring component suitable for a multi-component brake disk, comprising at least one unthreaded bore extending radially outwards from the inner side of the ring component and having a range of different bore diameters.

[0120] Thus, a bore hole for fixing the fastening element can be created in the friction disk ring component, which bore hole can not only be used to fix the fastening element but can also perform at least one other function, as has been described in detail above.

[0121] In order to achieve a comprehensive operative connection or fixing function, it is advantageous within the meaning of the invention if a large number of bores are provided on the inner side of the ring element in the circumferential direction.

[0122] According to a third aspect of the invention, the object is achieved by a fastening element for a multi-component brake disc, which has an elongated basic body, wherein the fastening element has at least one surface structure, by which the basic body can at least partially penetrate the material of the friction disc ring component.

[0123] By means of such a surface structure, a particularly tight operative connection can be produced between the fastening element and the friction disk ring component.

[0124] It is further advantageous if the insertion depth of the fastening element, preferably designed as a pin-shaped element, can be reliably limited by the structure. To this end, the elongated basic body can have a head region and a shaft region, wherein the head region and the shaft region have different outer diameters, in particular the outer diameter of the head region is greater than the outer diameter of the shaft region.

[0125] According to a fourth aspect of the present invention, the object is achieved by a method for manufacturing a brake disc composed of a plurality of functional components. i The friction disc ring component is mounted on the receiving surface of the receiving cup component radially outside, and the receiving surface has an outer diameter D a , before installing the friction disc ring components, the inner diameter D i and outer diameter D a The ratio D a / D i is selected to be 1.00088 or larger, or is selected to be 1.00027 or smaller; after the friction disc ring component is installed on the receiving surface, a through hole and a drilled hole are respectively formed on the friction disc ring component and the receiving cup component through a single drilling process, and an elongated fastening element is introduced into the corresponding drilled hole through the respective through holes from a radially inner position, wherein the elongated fastening element is at least partially fixed in the drilled hole of the friction disc ring component by friction fit and / or positive fit.

[0126] In this way, the friction disk ring part and the receiving cup part can advantageously be permanently connected together.

[0127] Furthermore, a method for producing a brake disk composed of a plurality of functional components is also advantageous, wherein the friction disk ring component is arranged on a receiving surface radially outside the receiving cup component, so that the through-holes arranged on the receiving surface overlap with the bores arranged in the friction disk ring component. An elongated fastening element is then introduced from a radially inner position through the respective through-hole into the corresponding bore, wherein the elongated fastening element is at least partially fixed in the bore of the friction disk ring component by means of a friction fit and / or a positive fit.

[0128] By means of the production process described here, a multi-component brake disk can be produced particularly easily.

[0129] In particular, in this case the fastening element can be fixed in a very simple constructional manner by means of a friction connection, in particular an interference fit connection, or by means of a form-fit connection.

[0130] The current production process can be further simplified if the elongated fastening element is driven into the drilled hole by hammering.

[0131] In this way, in particular when driving the fastening element into the friction disk ring part, it is no longer necessary to screw in the fastening screws as was previously done.

[0132] According to the definition of the invention, the term "penetrating" includes any method by which the fastening element can be introduced into the friction disk ring component, for example by pushing it into a bore, pressing it in or the like, in particular in an intermittent or continuous manner.

[0133] For example, by using a grooved, in particular longitudinally grooved, surface portion of the fastening element, the fastening element can be particularly reliably fixed in a borehole of the friction disk ring component, thereby bypassing a conventional screw connection.

[0134] In this respect, a preferred method variant is that when the elongated fastening element is inserted into the borehole, the fastening element penetrates into the material of the friction disk ring component and extends beyond the boundaries of the borehole.

[0135] In this case, the fastening element can actually cut into the outside of the inner wall of the friction disk ring component material, thereby ensuring a more secure fixation of the fastening element.

[0136] If the elongated fastening element is inserted into the bore hole with an insertion force of 4 kN or more, preferably with an insertion force of 6 kN or more, more preferably with an insertion force of 8 kN, a secure fit between the fastening element and the friction disk ring component can always be ensured.

[0137] If the elongated fastening element is inserted into the drilled hole with an insertion force of 12 kN or less, preferably with an insertion force of 10 kN or less, more preferably with an insertion force of 8 kN, installation can be performed with reasonable force.

[0138] According to a fifth aspect of the invention, this object is achieved by using a pin-shaped element, in particular a pin-shaped element at least partially having longitudinal grooves, for fixing a friction disk ring part of a multi-component brake disk to a receiving cup part of the multi-component brake disk.

[0139] By using such a pin-shaped element, the production process of a multi-component brake disk can be significantly simplified.

[0140] The following terms need clarification:

[0141] It should be clearly pointed out that in the context of this patent application, indefinite articles and indefinite quantitative expressions, such as "one...", "two...", etc., should generally be understood as "at least one...", "at least two...", etc., unless the context of the text or the specific content of a particular paragraph clearly indicates that it only means "exactly one..." or "exactly two...", etc. In addition, all numerical indications and indications of process parameters and / or device parameters should be understood in a technical sense, that is, with a usual tolerance range. In addition, the explicit use of qualifiers such as "at least" or "at least" should not lead to the assumption that the simple use of "one" (i.e., without explicitly stating "at least" or similar words) means "exactly one". BRIEF DESCRIPTION OF THE DRAWINGS

[0142] The present invention will be described in detail below using embodiments in conjunction with the accompanying drawings:

[0143] Figure 1 : schematically shows a sectional partial view of a possible embodiment of a multi-component brake disc, comprising a receiving cup component and a friction disc ring component, wherein an elongated fastening element is inserted to further secure the operative connection between the receiving cup component and the friction disc ring component;

[0144] Figure 2 : Schematically shows Figure 1 A partial cross-sectional view of a receiving cup component in a multi-component brake disc;

[0145] Figure 3 : Schematically shows Figure 1 A partial cross-sectional view of a friction disc ring component in a multi-component brake disc;

[0146] Figure 4 : Schematic diagram showing an elongated fastening element and Figure 1 A cross-sectional view of the operational connection of a multi-component brake disc;

[0147] Figure 5 : Schematically shows Figure 1 A view of an elongated fastening element in a multi-component brake disc;

[0148] Figure 6 : A view schematically showing a receiving cup component of another multi-component brake disc;

[0149] Figure 7 : Schematically shows Figure 6 A cross-sectional view of a further receiving cup member along section line AA is shown in FIG.

[0150] Figure 8 : A view schematically showing a friction disc ring component of another multi-component brake disc;

[0151] Fig. 9 : Schematically shows Figure 8 A further section view of the friction disk ring component along the section line FF is shown in FIG. 1 and is marked on the right with Figure 6 and Figure 7 Further receiving cup components and assembly directions shown;

[0152] Fig.10 : schematically shows a side view of an elongated fastening element having teeth and grooves;

[0153] Fig.11 : Schematically shows Fig.10 A front view of the fastening element shown in;

[0154] Fig.12 : Schematically shows a partial cross-sectional assembly view of another multi-component brake disc;

[0155] Fig.13 : Schematically shows Fig.12 A cross-sectional view of an alternative multi-component brake disc shown in FIG. 1 along section line AA;

[0156] Fig.14 : Schematically shows Fig.12 A detailed cross-sectional view of an alternative multi-component brake disc shown in FIG. 1 along section line BB;

[0157] Fig.15 : Schematically shows Fig.12 A further detailed cross-sectional view of the alternative multi-component brake disc shown in FIG. 1 along section line CC;

[0158] Fig.16 : Schematically shows a cross-sectional view of another friction disk ring component with a more recessed receiving area, for example for receiving Figure 6 and Figure 7 A further receiving cup component is shown in . DETAILED DESCRIPTION

[0159] like Figure 1 As shown, the multi-component brake disc 1 is mainly composed of a friction disc ring component 2 and a receiving cup component 3, wherein the friction disc ring component 2 is mounted on a cylindrical receiving surface 5 of the receiving cup component 3. The cylindrical receiving surface 5 is located on a cylindrical receiving area 6 of the receiving cup component 3.

[0160] The multi-component brake disk has an axis of rotation 8 .

[0161] When the friction disk ring component 2 and the receiving cup component 3 are correctly assembled, the plurality of bores 10 of the friction disk ring component 2 evenly distributed along the circumferential direction 12 of the multi-component brake disk 1 overlap with the corresponding through holes 14 on the receiving cup component 3 .

[0162] The boreholes 10 extend from an inner side 13 of the friction disk ring component 2 in a radial direction 16 (shown only as an example) from a radially more inner position to a radially more outer position.

[0163] In other words, both the bore 10 and the through-opening 14 extend transversely to the axis of rotation 8 of the multi-component brake disk 1 .

[0164] An elongated fastening element 18 is arranged in each bore hole 10 and through hole 14 , wherein each elongated fastening element 18 is driven from a radially more inner position to a radially more outer position, in particular into the respective bore hole 10 and through the associated through hole 14 .

[0165] The elongated fastening element 18 is fixed to the friction disk ring component 2 at least by friction.

[0166] In this respect, by simply hammering the elongated fastening element 18 into the bore 10 , a good friction connection (not explicitly numbered), preferably an interference fit connection (also not further numbered), can be established between the elongated fastening element 18 and the friction disk ring component 2 .

[0167] In particular, due to the existing friction connection, the multi-component brake disc 1 is provided with an effective locking device 20, by means of which the friction disc ring component 2 and the receiving cup component 3 can be securely fixed together, in particular axially fixed together.

[0168] Preferably, the elongated fastening element 18 can also be selectively operatively connected to the friction disk ring component 2 by a form-fit connection (not further numbered), ie the elongated fastening element 18 is at least partially interlocked with the friction disk ring component 2 in the bore 10 .

[0169] More details about the friction disk ring component 2, the receiving cup component 3 and the elongated fastening element 18, in particular the structural details, are also provided in Figures 2 to 5 Further shown in.

[0170] Figure 2 The illustration of shows the through-opening 14 in the receiving cup component 3 in more detail, wherein the through-opening 14 has an edge region 22 facing the friction disk ring component 2 .

[0171] In this embodiment, the receiving cup part 3 has an outer diameter 22 at its cylindrical receiving area 6, which has a value D a .

[0172] exist Figure 3 The schematic diagram of FIG. 2 shows the area of ​​the bore hole 10 in the friction disk ring component 2 in more detail. It can be clearly seen that the bore hole 10 has different apertures 26 and 27, so the bore hole 10 also includes two different aperture areas 28 and 29.

[0173] Especially from Figure 4 It can be clearly seen in the schematic view of FIG. 2 that the elongated fastening element 18 is fixed in a smaller hole area 29 of the friction disk ring component 2 which is radially further outward.

[0174] The larger aperture area 28 also provides an insertion space 30 at the bore 10 into which a material area of ​​the receiving cup part 3 can be offset if necessary, especially when driving the elongated fastening element 18 through the through hole 14, which may be necessary during assembly.

[0175] In this embodiment, the friction disk ring 2 has an inner diameter 32 on the inner side 13 of the ring, which has a value D i .

[0176] In this embodiment, the assembly diameter ratio D a / D i 1.03 if possible.

[0177] like Figure 4 As shown in the schematic example of FIG. 1 , a crack prevention hole 36 is arranged at the end 34 of each bore hole 10 of the friction disk ring component 2 .

[0178] according to Figure 1 Schematic diagram of the present invention, the anti-crack hole 36 is not shown separately, but in Figure 4 is shown as an example in .

[0179] exist Figure 5 In the schematic diagram of FIG. 1 , the elongated fastening element 18 is shown in more detail.

[0180] In this embodiment, the elongated fastening element 18 is designed as a pin-shaped element 38, and the pin-shaped element 38 is designed as a hollow pin element (also not individually numbered). Through this design, favorable ventilation conditions of >80% can be achieved in the middle position of the friction disk ring component 2.

[0181] In this respect, the elongated fastening element 18 comprises a ventilation hole 40 (not shown here) for ventilating the friction disk ring component 2 , which ventilation hole extends through the entire elongated fastening element 18 .

[0182] The elongated fastening element 18 has a cylindrical base body 42 and can therefore be easily inserted into the likewise cylindrical bore 10 and through-hole 14 .

[0183] Furthermore, the elongated fastening element 18 comprises a head region 44 and a shaft region 45 .

[0184] In the shaft region 45 , the outer diameter 46 of the elongated fastening element 18 is smaller than the larger bore diameter 26 of the bore 10 and is also smaller than the outer diameter 48 of the head region 44 .

[0185] Regardless, the elongated fastening element 18 has a longitudinally extending portion 50 and the elongated fastening element 18 has a side surface portion 54 with a surface structure 56 on a side surface 52 thereof.

[0186] In this exemplary embodiment, the shaft region 45 has a directional surface structure 56 .

[0187] Thus, the surface structure 56 forms a plurality of grooves 58 on the coating surface 52 of the longitudinally extending portion 50 of the elongated fastening element 18, at least in the shaft region 45. The grooves 58 form a tooth-like structure on the coating surface 52.

[0188] according to Figure 6 and Figure 7 Schematic diagram showing another alternative to the multi-component brake disc 100 (see Figures 12 to 15 ) of a further receiving cup component 103 (before assembly of the further friction disc ring component 102 associated therewith, see also Figure 8 and Fig. 9 ).

[0189] The further receiving cup part 103 does not yet have any through-holes 114 (see Fig.12 , as example numbers only).

[0190] The further receiving cup component 103 consists of a sheet metal structure and therefore has a sheet metal body 103A and a central axis 103B, wherein the central axis 103B coincides with the rotation axis 108 of the alternative multi-component brake disc 100. The sheet metal body 103A has a conventional sheet metal wall thickness 103C of 2.5 mm.

[0191] Furthermore, the receiving cup component 103 is characterized by a bottom region 103D and a flange region 103E, wherein the flange region 103E forms a cylindrical receiving surface 105 on which the friction disk ring component 102 replacing the multi-component brake disk 100 is arranged.

[0192] The cylindrical receiving surface 105 is located on a cylindrical receiving area 106 of the receiving cup part 103 .

[0193] The further receiving cup component 103 has five mounting holes 160 which are used for mounting the entire replacement multi-component brake disc 100 on a wheel hub (not shown) of a motor vehicle (not shown).

[0194] The diameter 160A of each mounting hole 160 is 15 mm.

[0195] The mounting holes 160 are located on a hole circle 161 , the hole circle diameter 161A of the hole circle is 112 mm and the distribution dimension 161B is 72°.

[0196] The further receiving cup component 103 also has a positioning mark 162 for more convenient installation on the wheel hub.

[0197] Furthermore, in this further embodiment, the outer diameter 124 of the further receiving cup part 103 at its cylindrical receiving area 106 or its cylindrical receiving surface 105 is exactly 165.1485 millimeters.

[0198] In the cylindrical receiving area 106 , the maximum sheet wall thickness 103C of the metal sheet body 103A is 3 mm.

[0199] A cylindrical receiving region 106 circumferentially 112 around a central axis 103A of the alternative multi-component brake disc 100 tapers toward a base region 103D to form a tapered region 163 and then transitions into the base region 103D at an angular region 164 of 90°.

[0200] The contracted length 163A of the contracted region 163 (measured from the inside of the receiving cup member 103) is 21.11 mm.

[0201] The base region 103D has a maximum base diameter 166 of 148 millimeters before the transition to the corner region 164 .

[0202] Further inwardly radially inwardly of the bottom region 103D of the receiving cup member 103 is a central opening 168 having an opening diameter 168A of 69 mm.

[0203] The height 165 of the flange area 103E of the further receiving cup part 103 is between 45.5 mm and 59.5 mm, also measured from the inner side of the receiving cup part 103 .

[0204] according to Figure 8 and Fig. 9 Schematic diagram showing an alternative multi-component brake disc 100 (see Figures 12 to 15 ) is another embodiment of a further friction disc ring component 102 (before assembly).

[0205] The further friction disk ring component 102 does not yet have a through hole 114 (see Fig.12 , as example numbers only) corresponding to the drill hole 110.

[0206] Furthermore, the friction disk ring component 102 is designed as an internally ventilated friction disk ring component, and thus has a plurality of cooling openings 170 (numbered only as examples), some of which may also be designed in different forms.

[0207] The further friction disk ring component 102 has a first friction disk side 102A and a second friction disk side 102B, wherein the two friction disk sides 102A and 102B are spaced apart from one another at least on an outer side 102C of the further friction disk ring component 102 by a circumferential groove 102D.

[0208] The groove width 102E of the circumferential groove 102D is 13.5 mm, while the side widths 102F of the two friction disk sides 102A and 102B are each 8.75 mm (only as example numbers).

[0209] The friction disk ring component 102 further has a total thickness 172 of 31 mm and a total outer diameter 174 of 319 mm.

[0210] Furthermore, the friction disk ring member 102 has a central axis 102G and an inner diameter 132 relative to its inner ring member side 113 is exactly 165 mm.

[0211] This forms a D with the outer diameter 124 (precisely 165.1485 mm) of the further receiving cup member 103. a / D i The ratio is 1.0009, at least in a state where the further friction disk ring component 102 and the further receiving cup component 103 have not yet been assembled together.

[0212] For example, the further receiving cup component 103 and the further friction disk ring component 102 are joined together according to an assembly direction 176 (see the figure) to form an alternative multi-component brake disk 100. a / D i The ratio is 1.0009, which results in an advantageous interference fit connection between the further receiving cup component 103 and the further friction disk ring component 102 .

[0213] In order to correctly assemble the further friction disk ring component 102 and the further receiving cup component 103 to form the replacement multi-component brake disk 100, a pin connection 178 is provided for the two functional components (see Fig.12 ) ; that is, a plurality of alternative elongated fastening elements 118 are used, wherein one such alternative elongated fastening element 118 is provided according to Fig.10 and Fig.11 The schematic diagram is shown.

[0214] An alternative elongated fastening element 118 is designed as a chamfered heavy spring pin 118A with a tooth groove 118B, such as Fig.10 and Fig.11 shown.

[0215] In this embodiment, the heavy duty spring pin 118A has a pin length 118C of 10 mm and a pin diameter 118D of 6.4 mm.

[0216] like Fig.11 As shown, in this embodiment, the overall wall thickness 118E of the heavy spring pin 118A is 1.2 mm.

[0217] according to Figures 12 to 15 , an alternative multi-component brake disc 100 is shown in an assembled state.

[0218] Here, the further friction disc ring component 102 is arranged on the cylindrical receiving surface 105 of the further receiving cup component 103. Through the above-mentioned crimping method, the further receiving cup component 103 and the further friction disc ring component 102 can be fixed together, so that a large number of holes can be easily processed in the replacement multi-component brake disc 100 radially from the inside to the outside through the flange area 103E (through hole 114) of the receiving cup component 103 and the further friction disc ring component 102 (drilling hole 110).

[0219] The alternative multi-component brake disc 100 has a total of thirteen such holes, through-holes 114 and bores 110 , specifically distributed every 27° 41′ 32″ in a distribution 180 measured in the circumferential direction 112 .

[0220] The further friction disc ring component 102 has thirteen bores 110 and the further receiving cup component 103 has thirteen through holes 114 matching and overlapping therewith.

[0221] The bores 110 extend from a ring member inner side 113 of the friction disk ring member 102 in a radial direction 116 (shown only as an example) from a radially more inner position to a radially more outer position.

[0222] A heavy spring pin 118A is disposed in each bore hole 110 and through hole 114 , wherein each heavy spring pin 118A is inserted from a radially more inner position to a radially more outer position while entering the corresponding through hole 114 and bore hole 110 .

[0223] The alternative multi-component brake disk has an axis of rotation 108 .

[0224] according to Fig.14 Schematic diagram showing an alternative multi-component brake disc 100 along section line BB (see Fig.12 ) in which it is clearly shown that the diameter 114A of the through hole 114 in the flange area 103E of the receiving cup part 103 is 6 mm.

[0225] according to Fig.15 Schematic diagram showing an alternative multi-component brake disc 100 along section line CC (see Fig.12 ). It can be clearly seen that the heavy spring pin 118A is inserted into the functional components of the receiving cup component 103 and the friction disk ring component 102 with a total insertion depth 182 of at least 7.8 mm, wherein the heavy spring pin 118A further protrudes radially inwardly by 2 mm on the inner side of the flange area 103E and forms a protrusion 184.

[0226] according to Fig.16 Schematic diagram showing another friction disk ring component 202, which has a concave ring component inner side 213, and this friction disk ring component 202 can be easily arranged on a further receiving cup component 103 (see in particular Figure 6 and Figure 7 ).

[0227] The other friction disk ring component 202 has an inner diameter D at the vertex 288 of the inner side 213 of the concave ring component. i 232, precisely 160 mm, the vertex 288 is located on the center plane 289 of the other friction disk ring component 202.

[0228] Through the inner diameter D of the other friction disk ring component 202 i 232 is exactly 160 mm, and further receives the outer diameter D of the cup member 103 a 124 is exactly 165.1485 mm. When the two are not put together, this configuration forms a D a / D i The ratio is 1.0321.

[0229] Even due to tolerance reasons, the inner diameter D i 232 is 160.5 mm, which is consistent with the outer diameter D of the further receiving cup component 103 which is precisely 165.1485 mm. a 124, it will still form a favorable D a / D i The ratio is 0.9978; if the inner diameter D i 232 deviates downward to 159 mm, forming a D a / D i The ratio is 1.0386.

[0230] The embodiments shown herein are only preliminary examples of the present invention and should not be construed as limiting. Alternative embodiments conceived by professionals are also included within the scope of the present invention.

[0231] Reference Symbols List

[0232] 1 Multi-component brake disc

[0233] 2 Friction disc ring parts

[0234] 3 Receiving cup parts

[0235] 5 Cylindrical receiving surface

[0236] 6 Cylindrical receiving area

[0237] 8 Rotation axes

[0238] 10. Drilling

[0239] 12 Circumferential direction

[0240] 13 Inner side of ring

[0241] 14 Through Holes

[0242] 16 Radial direction or radial outward

[0243] 18 Slender fastening element

[0244] 20 Anti-loosening device

[0245] 22 Marginal Area

[0246] 24 outer diameter

[0247] 26 First aperture

[0248] 27 Second Aperture

[0249] 28 First aperture area

[0250] 29 Second aperture area

[0251] 30 Insertion area

[0252] 32 inner diameter

[0253] 34 End

[0254] 36 anti-crack holes

[0255] 38 Pin Components

[0256] 40 Ventilation holes

[0257] 42 Base or cylindrical base

[0258] 44 Head area

[0259] 45 Shaft area

[0260] 46 Shaft outer diameter

[0261] 48 Head outer diameter

[0262] 50 longitudinal extension or longitudinal direction

[0263] 52 Surface coating

[0264] 54 Coating surface part

[0265] 56 Surface structure

[0266] 58 Grooves or flutes

[0267] 100 Replacement multi-component brake disc

[0268] 102 Further friction disc ring components

[0269] 102A First friction disc side

[0270] 102B Second friction disc side

[0271] 102C Outer side

[0272] 102D Circumferential groove

[0273] 102E Slot Width

[0274] 102F Side Width

[0275] 102G Center Axis

[0276] 103 Further receiving cup parts

[0277] 103A Metal plate

[0278] 103B Center axis

[0279] 103C Wall thickness of metal sheet

[0280] 103D Bottom area

[0281] 103E Flange area

[0282] 105 cylindrical receiving surface

[0283] 106 Cylindrical receiving area

[0284] 108 Rotation axis

[0285] 110 Drilling

[0286] 112 Circumferential direction

[0287] 113 Ring component inner side

[0288] 114 Through Holes

[0289] 114A Aperture

[0290] 116 Radial direction or radial outward

[0291] 118 Slender fastening element

[0292] 118A Heavy Duty Spring Pin

[0293] 118B Tooth groove

[0294] 118C Pin length

[0295] 118D Pin diameter

[0296] 118E Total wall thickness

[0297] 124 outer diameter

[0298] 132 inner diameter

[0299] 160 Mounting holes

[0300] 160A Aperture

[0301] 161 Hole Circle

[0302] 161A Hole diameter

[0303] 161B Distribution size

[0304] 162 Positioning Mark

[0305] 163 Contraction Area

[0306] 163A Contraction Length

[0307] 164 Corner Area

[0308] 165 Flange height

[0309] 166 Bottom diameter

[0310] 168 Central opening

[0311] 168A Opening diameter

[0312] 170 Cooling holes

[0313] 172 Total thickness

[0314] 174 Total outer diameter

[0315] 176 Assembly direction

[0316] 178 Pin connection

[0317] 180 Distribution

[0318] 182 Insertion Depth

[0319] 184 protrusion

Claims

1. A multi-component brake disc (1; 100), Especially lightweight brake discs (1; 100), It comprises a friction disc ring component (2; 102; 202) and a receiving cup component (3; 103), The friction disk ring component (2; 102; 202) is arranged radially on the outside of the receiving cup component (3; 103) in a rotationally fixed manner. The friction disk ring component (2; 102; 202) and the receiving cup component (3; 103) are further operatively connected via at least one elongated fastening element (18; 118A), wherein the at least one elongated fastening element (18; 118A) is arranged in a through hole (14; 114) of the receiving cup component (3; 103) and a bore hole (10; 110) of the friction disk ring component (2; 102; 202), It is characterized in that The at least one elongated fastening element (18; 118A) is fixed in the receiving cup component (3; 103) and the friction disk ring component (2; 102; 202) only by insertion, wherein the at least one elongated fastening element (18; 118A) is arranged in the friction disk ring component (2; 102; 202) in a friction-locking manner.

2. The multi-component brake disc (1; 100) according to claim 1, characterized in that The at least one elongated fastening element (18; 118A) is arranged in the friction disk ring component (2; 102; 202) by means of an interference fit connection.

3. A multi-component brake disc (1; 100) according to claim 1 or 2, characterized in that The at least one elongated fastening element (18; 118A) is arranged in the friction disk ring component (2; 102; 202) in a form-fitting manner, in particular by a form-fitting connection.

4. A multi-component brake disc (1; 100) according to any one of claims 1 to 3, characterized in that The at least one elongated fastening element (18; 118A) has at least partially a covering surface (52) with a surface structure (56), preferably a directional surface structure (56), in particular the surface structure (56) comprises grooves (58), notches or similar structures, and in particular the surface structure (56) extends in the longitudinal direction (50) of the elongated fastening element (18; 118A).

5. A multi-component brake disc (1; 100) according to any one of claims 1 to 4, characterized in that The at least one elongated fastening element (18; 118A) is a pin element (36), in particular a longitudinally slotted pin element (36).

6. A multi-component brake disc (1; 100) according to any one of claims 1 to 5, characterized in that The at least one elongated fastening element (18; 118A) is a hollow pin element (36), in particular a high-strength spring pin (118A), wherein the elongated fastening element (18; 118A) has a tooth groove (118B).

7. A multi-component brake disc (1; 100) according to any one of claims 1 to 6, characterized in that The at least one elongated fastening element (18; 118A) has an outer diameter in an unloaded state of not less than 4.5 mm, preferably not less than 5.5 mm, more preferably not less than 6 mm, and / or an outer diameter of not more than 9 mm, preferably not more than 8 mm, more preferably not more than 6 mm.

8. A multi-component brake disc (1; 100) according to any one of claims 1 to 7, characterised in that The elongated fastening element (18; 118A) has a length of 5 mm or more, preferably 8 mm or more, more preferably 10 mm or more, and / or a length of 18 mm or less, preferably 15 mm or less, more preferably 12 mm or less.

9. A multi-component brake disc (1; 100) according to any one of claims 1 to 8, characterised in that The at least one elongated fastening element (18; 118A) has a mass of no more than 2.2 grams, preferably no more than 1.8 grams, more preferably no more than 1.2 grams, and / or a mass of no less than 0.4 grams, preferably no less than 0.6 grams, more preferably no less than 0.8 grams.

10. A multi-component brake disc (1; 100) according to any one of claims 1 to 9, characterised in that The at least one elongated fastening element (18; 118A) has a base body made of steel.

11. A multi-component brake disc (1; 100) according to any one of claims 1 to 10, characterised in that The at least one elongated fastening element (18; 118A) has a cylindrical base body (42).

12. A multi-component brake disc (1; 100) according to any one of claims 1 to 11, characterised in that The at least one elongated fastening element (18; 118A) has a head region (44) and a shaft region (45).

13. A multi-component brake disc (1; 100) according to any one of claims 1 to 12, characterised in that The at least one elongated fastening element (18; 118A) has ventilation holes (40) for ventilating the friction disk ring component (2; 102; 202).

14. A multi-component brake disc (1; 100) according to any one of claims 1 to 13, characterised in that The at least one elongated fastening element (18; 118A) and / or the receiving cup part (3; 103) has a surface coating, in particular an anti-corrosion coating.

15. A multi-component brake disc (1; 100) according to any one of claims 1 to 14, characterised in that It comprises an anti-slip device (20), by which the friction disk ring component (2; 102; 202) and the receiving cup component (3; 103) are operably fixed to each other, in particular axially, wherein the anti-slip device (20) has at least one friction and / or form-fitting connection including at least one elongated fastening element (18; 118A).

16. The multi-component brake disc (1; 100) according to claim 15, characterized in that The anti-slip device (20) has a hardness gradient arrangement that gradually decreases from the elongated fastening element (18; 118A) to the friction disk ring component (2; 102; 202).

17. A multi-component brake disc (1; 100) according to any one of claims 1 to 16, characterised in that The receiving cup component (3; 103) has a cylindrical receiving area (6; 106), and the cylindrical receiving area (6; 106) has a cylindrical receiving surface (5; 105) arranged radially outward for receiving the inner side (13; 113) of the friction disk ring component.

18. A multi-component brake disc (1; 100) according to any one of claims 1 to 17, characterised in that The receiving cup part (3; 103) has an outer diameter D a (24; 124) of the cylindrical receiving area (6; 106), the friction disk ring component (2; 102; 202) having an inner diameter D i (32; 132), where D a / D i The ratio is 1.01 or greater, preferably 1.02 or greater.

19. A multi-component brake disc (1; 100) according to any one of claims 1 to 18, characterised in that The receiving cup part (3; 103) has an outer diameter D a (24; 124) of the cylindrical receiving area (6; 106), the friction disk ring component (2; 102; 202) having an inner diameter D i (32; 132), where D a / D i The ratio is 1.06 or less, preferably 1.05 or less.

20. A multi-component brake disc (1; 100) according to any one of claims 1 to 19, characterised in that The receiving cup part (3; 103) has an outer diameter D a (24; 124) of the cylindrical receiving area (6), the friction disk ring component (2; 102; 202) has an inner diameter D i (32; 132), where D a / D i The ratio is 1.00088 or more, preferably 1.00089 or more, and more preferably 1.0009 or more.

21. A multi-component brake disc (1; 100) according to any one of claims 1 to 20, characterised in that The receiving cup part (3; 103) has an outer diameter D a (24; 124) of the cylindrical receiving area (6), the friction disk ring component (2; 102; 202) has an inner diameter D i (32; 132), where D a / D i The ratio is 1.00027 or more, preferably 1.00025 or less, and more preferably 1.00022 or more.

22. A multi-component brake disc (1; 100) according to any one of claims 1 to 21, characterised in that The inner diameter D of the friction disk ring component (2; 102; 202) i (32; 132) is 164.9 mm or greater, preferably 165 mm or greater, and more preferably 165.05 mm or greater.

23. A multi-component brake disc (1; 100) according to any one of claims 1 to 22, characterised in that The inner diameter D of the friction disk ring component (2; 102; 202) i (32; 132) is 166 mm or less, preferably 165.063 mm or less, and more preferably 165 mm or less.

24. A multi-component brake disc (1; 100) according to any one of claims 1 to 23, characterised in that The outer diameter D of the receiving cup part (3; 103) i (24; 124) is 164.95 mm or greater, preferably 165 mm or greater, and more preferably 165.05 mm or greater.

25. A multi-component brake disc (1; 100) according to any one of claims 1 to 24, characterised in that The outer diameter D of the receiving cup part (3; 103) i (24; 124) is 165.5 mm or less, preferably 165.15 mm or less, and more preferably 165 mm or less.

26. A multi-component brake disc (1; 100) according to any one of claims 1 to 25, characterised in that The drilled hole (10; 110) made in the friction disk ring component (2; 102; 202) is threadless.

27. A multi-component brake disc (1; 100) according to any one of claims 1 to 26, characterised in that The borehole (10; 110) made in the friction disk ring component (2; 102; 202) has two diameter ranges (28, 29), which are different from each other, in particular, the larger diameter range (28) of the borehole (10; 110) is arranged radially more inwardly than the smaller diameter range (29) of the borehole (10; 110).

28. The multi-component brake disc (1; 100) according to claim 27, characterized in that In the smaller diameter region (29) arranged radially further outwards, the at least one elongated fastening element (18; 118A) is fixed to the friction disk ring component (2; 102; 202).

29. A multi-component brake disc (1; 100) according to claim 27 or 28, characterised in that In a larger diameter region (28) arranged radially further inwards, on the one hand the at least one elongated fastening element (18; 118A) is arranged and on the other hand the material of the receiving cup part (3; 103) can be introduced.

30. A multi-component brake disc (1; 100) according to any one of claims 27 to 29, characterised in that The edge region (22) of the through hole (14; 114) of the receiving cup part (3; 103) can be displaced into the larger diameter range (28) arranged radially more inwardly.

31. A multi-component brake disc (1; 100) according to any one of claims 1 to 30, characterised in that The hole (10; 110) has an introduction space (30) for receiving the material of the receiving cup component (3; 103), and in particular, the hole diameter (26) of the introduction space (30) is larger than the outer diameter (46; 118D) of the at least one fastening element (18; 118A) arranged in the introduction space (30).

32. A multi-component brake disc (1; 100) according to any one of claims 1 to 31, characterised in that The friction disk ring component (2; 102; 202) has crack prevention holes (36) which are arranged radially further outward at the respective ends (34) of the bores (10; 110).

33. A multi-component brake disc (1; 100) according to any one of claims 1 to 32, characterised in that The through hole (14; 114) of the receiving cup component (3; 103) and the drilled hole (10; 110) of the friction disk ring component (2; 102; 202) each have a hole diameter LD i (114A), the at least one elongated fastening element (18; 118A) having a pin diameter SD a (118D), of which SD a / LD i The ratio of is 1.0551 or more, preferably 1.0593 or more, more preferably 1.0612 or more, and / or SD a / LD i The ratio is 1.0751 or less, preferably 1.0712 or less, and more preferably 1.0631 or less.

34. A multi-component brake disc (1; 100) according to any one of claims 1 to 32, characterised in that The through hole (14; 114) of the receiving cup component (3; 103) and the drilled hole (10; 110) of the friction disk ring component (2; 102; 202) each have a hole diameter LD i (114A), the at least one elongated fastening element (18; 118A) having a pin diameter SD a (118D), of which SD a / LD i The ratio of is 1.0345 or more, preferably 1.0391 or more, more preferably 1.0419 or more, and / or SD a / LD i The ratio is 1.0651 or less, preferably 1.0574 or less, and more preferably 1.0461 or less.

35. A multi-component brake disc (1; 100) according to any one of claims 1 to 32, characterised in that The through hole (14; 114) of the receiving cup component (3; 103) and the drilled hole (10; 110) of the friction disk ring component (2; 102; 202) each have a hole diameter LD i (114A), the at least one elongated fastening element (18; 118A) having a pin diameter SD a (118D), of which SD a / LD i The ratio of is 1.0111 or more, preferably 1.1011 or more, more preferably 1.1143 or more, and / or SD a / LD i The ratio is 1.1199 or less, preferably 1.1187 or less, and more preferably 1.1177 or less.

36. A friction disc ring component (2; 102; 202) for a multi-component brake disc (1; 100), in particular for a multi-component brake disc (1; 100) according to any of the preceding claims, characterized in that The friction disk ring component (2; 102; 202) has at least one unthreaded bore (10; 110), which extends radially further outward (16) from the inner side (13; 113) of the friction disk ring component and has different hole diameters (26, 27).

37. The friction disk ring component (2; 102; 202) according to claim 36, characterized in that: A plurality of bore holes (10; 110) are arranged in a circumferential direction (12; 112) on the inner side (13; 113) of the friction disk ring component.

38. A fastening element (18) for a multi-component brake disc (1; 100), in particular for a multi-component brake disc (1; 100) according to any one of claims 1 to 26, characterized in that The fastening element (18; 118A) has an elongated base body (42), wherein the fastening element (18; 118A) has at least one surface structure (56) through which the base body (42) can at least partially penetrate into the material of the friction disk ring component (2; 102; 202).

39. A method for manufacturing a brake disc (1; 100), characterized in that The method comprises: i The friction disk ring component (2; 102; 202) of (32; 132) is arranged on the receiving cup component (3; 103) with an outer diameter D a (24; 124) on the radially outer receiving surface (5; 105), wherein, before the friction disk ring component (2; 102; 202) is arranged on the receiving surface (5; 105), the inner diameter D i (32; 132) and outer diameter D a (24; 124) with D a / D i The ratio is selected to be 1.00088 or greater, or D a / D i The ratio is selected to be 1.00027 or less, and after the friction disk ring component (2; 102; 202) is arranged on the receiving surface (5; 105), a through hole (14; 114) and a drilled hole (10; 110) are respectively made in the friction disk ring component (2; 102; 202) and the receiving cup component (3; 103) by a single drilling process, and an elongated fastening element (18; 118A) is introduced from the radial inside through the respective through holes (14; 114) into the respective corresponding drilled holes (10; 110), wherein the elongated fastening element (18; 118A) is at least partially fixed in the drilled hole (10; 110) of the friction disk ring component (2; 102; 202) by friction fit and / or shape fit.

40. The method according to claim 39, characterized in that The elongated fastening element (18; 118A) is inserted into the bore (10; 110) by hammering.

41. The method according to claim 39 or 40, characterized in that The elongated fastening element (18; 118A) is fixed in the bore (10; 110) by means of grooves, in particular longitudinal grooves, on a covering surface portion (54) of the elongated fastening element (18; 118A).

42. The method according to any one of claims 39 to 41, characterized in that When the elongated fastening element (18; 118A) is inserted into the bore hole (10; 110), the elongated fastening element (18; 118A) penetrates into the material of the friction disk ring component (2; 102; 202) and is located outside the bore hole (10; 110).

43. The method according to any one of claims 39 to 42, characterized in that The elongated fastening element (18; 118A) is introduced into the bore hole (10; 110) with an insertion force of 4 kN or more, preferably 6 kN or more, more preferably 8 kN.

44. The method according to any one of claims 39 to 43, characterized in that The elongated fastening element (18; 118A) is introduced into the bore hole (10; 110) with an insertion force of 12 kN or more, preferably 10 kN or more, more preferably 8 kN.

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