Differently conditioned grinding wheels for producing a final profile

Abstract

The invention relates to a method (100a, 100b) for producing a final profile (10) of a product (12), in which a section of the product (12) is machined (104) in a first-type machining step (102) by means of a section (14) of a first grinding wheel (16) conditioned in a first way. Subsequently, a final profile (10) of the product (12) provided along said section is produced (108) in a second-type machining step (106) by means of a section (18) of a second grinding wheel (20) conditioned in a second way.

Description

The invention relates to a method for producing an end profile, to an abrasive body and to a product having the end profile.A surface quality and tribological properties of a toothing component significantly influence the properties of a system formed therefrom. For example, energy efficiency, durability, and / or noise emission of a transmission may be improved by reducing roughness and / or ripple and increasing surface area percentages of the tooth components. In order to produce toothed components with a sufficient quality, it is already known to produce their end profiles by means of grinding. In this case, grinding bodies with a worm-shaped grinding body contour are generally used. These abrasive bodies are usually provided with a coarse grain. The abrasive used is preferably sintered corundum. End profiles can thereby be produced economically. It is also known to use abrasive articles which have at least two different regions in order to be able to meet high requirements for a surface to be produced. The different regions are provided with different abrasives and / or different grain sizes. In order to be able to achieve a high surface quality and a high dimensional accuracy on the toothed components, the grinding bodies used hitherto are conditioned in a blunt manner. This is achieved, for example, by providing high relative speeds between a grinding body and a dressing tool and / or by providing a high number of rollovers of the grinding body surface with the dressing tool during a dressing operation. By means of a grinding body conditioned in this way, only limited material removal can be achieved on the product to be produced. A low roughness can thereby be achieved. However, high machining forces are required for a grinding method with butt-conditioned grinding bodies. These high processing forces lead to a strong heating of the product and the abrasive body. This creates a high risk that grinding fire and / or a breakage of the abrasive body occurs. In order to reduce this risk, high amounts of coolant are generally transported into a contact region between the abrasive body and the product. However, this in turn leads to the problem that the abrasive bodies float due to aquaplaning effects. This temporarily and irregularly interrupts contact between the product to be processed. During such an interruption, no material removal takes place locally. However, this considerably influences a surface quality of a final profile to be produced. Moreover, because of the high machining forces, abrasive agents are frequently broken out of the abrasive body. As a result, an abrasive effect of the abrasive body is changed during machining. This leads to different qualities of the final profile in successively produced products. In order to keep this effect as small as possible, the abrasive body must be re-conditioned at regular intervals. This impairs an efficiency of the machining process, since an associated machine cannot be operated productively during conditioning or during a replacement of the grinding element with a conditioned grinding element. In addition, the high processing forces lead to oscillations of the product and the abrasive body. This produces undulations on the final profile of the product. However, these oscillations with amplitude levels of in some cases greater than 250 nm sometimes limit a maximum surface quality that can be produced. Furthermore, undulations with amplitude levels of greater than 200 nm may already be responsible for noise emission of the transmission. In addition, undulations lead to a reduction in surface area percentages between two intermeshing toothing components. This results in a high local load on flanks of the toothing components. As a result, durability of the toothed components is impaired and maximum load capacity is limited. This increases the risk of partial overloading, as a result of which particles can separate from the end profile and pitting can occur.The object of the invention is to specify a method by means of which a product having an end profile of improved quality can be produced.This object is achieved by a method having the features of claim 1.A further object of the invention is to provide an abrasive body by means of which the method according to the invention can be carried out.This object is achieved by an integrated abrasive body having the features of claim 8.It is a further object of the invention to provide a product having an improved quality final profile.This object is achieved by a product having the features of claim 15.Advantageous refinements are the subject matter of dependent dependent claims in each case.The method according to the invention for producing an end profile of a product provides that a section of the product is processed in a processing step of the first type by means of a section of a first abrasive body conditioned in a first type. It is subsequently provided that an end profile of the product provided along the mentioned section is produced in a processing step of the second type by means of a section of a second abrasive body conditioned in a second type.In connection with the invention described in the present case, conditioning in the sense of grinding technology is to be understood. Hereafter, a mechanical preparation of an abrasive article for a machining operation is referred to as conditioning. Conditioning can be divided into dressing and cleaning. As a rule, however, a grinding body is cleaned in the course of dressing. The dressing can in turn be divided into profiling and adjusting a cutting effect of associated abrasives. By means of profiling, the abrasive body is provided with a defined abrasive body contour. In the present case, the grinding body contour is to be understood as an outer boundary line of the grinding body formed by a material or a material composition of the grinding body. Preferably, the abrasive body contour is predominantly formed from abrasive materials. Furthermore, during the profiling, the grinding body can be calibrated and, if appropriate, a correct runout can be produced. By adjusting the cutting action, individual abrasives are broken. By means of a predetermined selection of dressing parameters, such as the circumferential speed of the dressing tool, the circumferential speed of the grinding body to be conditioned, a ratio of the circumferential speeds mentioned, a contact pressure, a feed of the dressing tool and / or a number of rollovers, grinding bodies can be conditioned in a predetermined manner. This makes it possible, using suitable dressing parameters, to provide an abrasive body with optionally sharp or blunt abrasives in a manner already known to the person skilled in the art.The use of grinding bodies conditioned in different ways enables an optimization of individual machining steps. For different machining steps, individual chip volumes, chip volumes, machining forces and individual chip formation properties can thereby be provided. In this way, a production of a product can be carried out quickly and cost-effectively. Moreover, in this way, a high surface quality and a high dimensional accuracy of a final profile to be produced can be achieved.An advantageous further development of the method provides that in the first type processing step, flow chips are formed by means of the section of the first abrasive body conditioned in the first type.In the present case, a flow chip is understood to mean a continuous chip which arises as a result of continuous material removal. Such a continuous material removal is achieved by removing a material to be removed in a shear zone without exceeding a deformation capacity of the material to be removed. Premature fracture of the chip during engagement of the abrasive agent with the product therefore generally does not occur in the case of a flow chip. Ideally, a length of a flow chip substantially corresponds to a length of a contact path of an abrasive generating the flow chip with a product.In order to produce flow chips, the abrasives of the section conditioned in the first way are expediently provided with the highest possible cutting effect. Preferably, the abrasives are broken sharp-edged. This is expediently achieved in that a dressing agent penetrates deeply into a surface of the grinding body in consideration of a grain size of the grinding means. This makes it possible to easily create receiving spaces for flow chips. For example, these receiving spaces are created by machining out binding components of the abrasive body, which are responsible for holding the abrasive agents together. In this context, the depth is determined by a grain size of the abrasives. Alternatively or additionally, a small number of rollovers of the grinding body can be provided with a dressing tool. Furthermore, successful flow chip formation is determined essentially by the following influencing variables: a penetration depth of the abrasives into a product to be produced, a shape of the chip formed and an essentially unobstructed removal of the chip.When removing flow chips, chip formation forces can usually be kept low. As a result, wear on the abrasive body, such as, for example, breaking out of abrasive agents, can be at least partially avoided. A renewed conditioning of the abrasive body can thereby be delayed. In this way, an abrasive body with a long service life can be provided. Furthermore, a high chip volume can be achieved with the aid of flow chip formation. In the preferred application, a profile of a product can thus already be produced in a roughing process, which profile satisfies predefined requirements for dimensional accuracy. Moreover, a high surface quality can be achieved due to the low processing forces required. If a high chip volume is provided in this connection, an end profile of a product can be produced quickly and reliably with high quality.In an advantageous embodiment variant, a proportion of at least 50%, preferably at least 70%, and particularly preferably at least 90%, of a material removal carried out by means of the section of the grinding body conditioned in the first manner is removed in the form of flow chips. Machining forces occurring in this case can thereby be kept particularly low. Furthermore, in this way, a damping effect of a machine tool can be used for the purpose of reducing vibrational excitations. This makes it possible to reduce surface defects or shape deviations caused by oscillations.A further advantageous development provides that in the processing step of the second type, broken chips are formed by means of the section of the second grinding body conditioned in the second type.In the present context, breaking chips are to be understood as chips which are produced as a result of discontinuous material removal by means of an abrasive. In this case, exceeding a deformation capability of a material to be removed during contact of an abrasive with the product results in a plurality of chips separated from each other.In order to form broken chips, the abrasives of the section conditioned in the second way are expediently provided with a low cutting effect. For this purpose, the said abrasives are preferably conditioned in a blunt state. This can be achieved by keeping a depth of engagement of a dressing agent with a surface of the grinding body small. In addition to the abrasive being dulled, it is possible to achieve this by virtue of the fact that bonding components of the abrasive body which are responsible for the abrasive being held together are retained. In this way, a penetration depth of the abrasives into a product to be produced is again restricted. Alternatively or additionally, for the purpose of producing blunt grinding means, a low relative speed can be provided between a dressing tool and the grinding body, for example. Expediently, a small feed of the dressing tool is selected in this context in order to achieve a high number of rollovers of the grinding body with the dressing tool. With the aid of abrasives with a low cutting effect, chip forming forces can be increased. As a result, a small amount of material removal can be achieved. During fine machining of the final profile to be produced, a roughness can thereby be reduced, for example.The machining step of the second type is preferably carried out as a fine roughing operation or a finishing operation with a low chip volume.An alternative or additional advantageous development of the method provides that in the machining step of the second type, the section of the product machined in the machining step of the first type is rolled by means of the section of the second grinding body conditioned in the second type. As a result, a further improvement in the surface quality of a profile of a product already formed by means of the processing step of the first type can be achieved in a simple and cost-effective manner. The final profile to be produced can be smoothed by means of rolling. Such smoothing is realized, for example, by high processing forces. For example, the high chip forming forces occurring during chip breaking formation can be used for the purpose of rolling. Alternatively or additionally, a contact pressure between an abrasive body and an end profile to be produced can be controlled for the purpose of rolling.During rolling, roughness peaks are preferably plastically deformed. In the preferred application, a deformation of roughness peaks takes place without a negative influence on a shape of an already produced profile of a product. The slight plastic deformation makes it possible to achieve improved damping properties. Moreover, lubricant reservoirs can be produced by means of a plastic forming of roughness peaks. In particular, these lubricant reservoirs are formed by roughness scales of an originally present roughness. In contrast to fine machining or fine machining, a product with improved tribological properties can be produced in a simple manner by means of rolling.Optionally, rolling can be provided in conjunction with material removal or without material removal. Advantageously, the section of the product previously processed in the first type processing step is rolled without grinding means in the second type processing step. For this purpose, the section conditioned in the second manner is expediently embodied with a material finish free of abrasive. Surface defects caused by additional material removal can thereby be effectively avoided. Furthermore, forming of roughness peaks can be controlled by means of the pure rolling. Products can therefore be provided with predetermined damping properties and / or tribological properties as required.In a preferred embodiment variant, in the processing step of the second type, a section of the product processed by the processing step of the first type is processed by means of the section of the abrasive body conditioned in the second type. In this way, a constantly high quality can be achieved with a plurality of successively produced products.In another advantageous development, it is provided that a material of the same nature is provided in each case for the section of the first abrasive body conditioned in the first manner and for the section of the second abrasive body conditioned in the second manner. In this way, a common abrasive body can be used to produce the product. Expediently, the method can thereby be carried out reliably with a standard grinding body which is usually easily available. In contrast, special preparations can be dispensed with.In an alternative development, it is provided that for the section of the first abrasive body conditioned in the first manner, a material is provided with a characteristic that differs from a characteristic of a material of the section of the second abrasive body conditioned in the second manner. In this way, specially conditioned sections can be provided for individual processing steps. As a result, individual chip volumes, chip volumes and chip formation properties can be provided in each case for different sections. This makes it possible to be able to meet high requirements for a surface quality and / or a shape accuracy of a final profile to be produced.Preferably, the section of the first abrasive body conditioned in the first manner is divided into a plurality of cylindrical subsections along an axis of rotation of the first abrasive body. Preferably, said sections are divided along an axis of rotation into a plurality of overlapping-free cylindrical subsections. By means of a predetermined cylindrical subsection of said plurality of cylindrical subsections, the first type processing step is carried out on a plurality of products. In this way, unambiguously defined regions in the section conditioned in the first manner can be defined for the processing step of the first kind. This makes it possible to provide a simple and cost-effective production method. Furthermore, in this way, wear of the grinding body can be distributed uniformly over its effective surface.In a preferred embodiment, for each product of the aforementioned plurality of products, the processing step of the first type is started and / or ended at the same starting point in the predetermined cylindrical subsection. A further movement of a machining region to an at least partially new position on the grinding tool in the axial direction for the purpose of counteracting a grinding body contour that changes due to wear can be dispensed with. The mentioned further movement is known, inter alia, as diagonal shirts. Furthermore, reliably reproducible production results can thereby be achieved. Moreover, it is possible in this way to prevent a face side and thus an end of the grinding body from being reached during machining.Furthermore, the section of the second abrasive body conditioned in the second manner is advantageously divided into a plurality of cylindrical subsections along an axis of rotation of the second abrasive body. Preferably, the section conditioned in the second manner is divided into a plurality of overlap-free subsections. The processing step of the second type is then carried out on a plurality of products, preferably on the aforementioned plurality of products, by means of a predetermined cylindrical subsection of the plurality of cylindrical subsections of the section conditioned in the second type. Conveniently, the first and second type processing steps are carried out sequentially on said one product for the purpose of producing an end profile of a product of said plurality of products. Subsequently, said processing steps are then carried out consecutively on said further product for the purpose of producing an end profile of a further product from said plurality of products.In a preferred embodiment, it is provided that for each product of the aforementioned plurality of products, the processing step of the second type is started at the same starting point and / or is ended at the same ending point in the further predetermined cylindrical subsection. This makes it possible to avoid overlapping of machining areas of different machining steps on the abrasive body. Nevertheless, uniform wear of an effective surface of the grinding body can be achieved. In the preferred application, at most little wear occurs on the abrasive body. A component quality of constant level can thus be achieved without the need to provide different starting or end points.Furthermore, it is proposed that the machining steps of the first type and of the second type are carried out with an integrated abrasive body, in which the first abrasive body is connected to the second abrasive body.In the present context, such a connection is to be understood as meaning any manner of use which conveys contact between the grinding bodies. The term connection is not limited to material, force or form-fit connections.An integrated grinding body can be used for various machining steps of a final machining of a product without the need to perform a tool change. Interruption of the machining operation can thereby be prevented. Furthermore, an integrated abrasive body can be used to provide a compact abrasive body.In an advantageous embodiment variant, an integrated abrasive body is used, in which the first abrasive body is connected to the second abrasive body in a rotationally fixed manner. Furthermore, the abrasive body can be provided with a uniform abrasive body contour in a reliable manner.Further, in this manner, various machining steps can be performed on a product sequentially with the integrated abrasive body.In a preferred embodiment, an integrated abrasive body is used for producing the end profile of the product, in which the first abrasive body is joined to the second abrasive body, particularly preferably connected in a force-fit manner. In this way, a binder-free connection can be provided between the first and the second abrasive body. Clogging of a porous nature of an abrasive body can thereby be prevented. Furthermore, an improved grinding behavior can be achieved as a result. Furthermore, wear on a dressing tool caused by the binder can be avoided for the purpose of conditioning the grinding body.The method according to the invention can be carried out with the abrasive body according to the invention.The abrasive article of the invention has a first portion conditioned in a first manner. Furthermore, the abrasive body according to the invention has a further section which is conditioned in a second manner. Conditioning is to be understood in particular as the conditioning explained above in connection with the method.In a preferred embodiment variant, the grinding body is designed as a grinding wheel. The grinding wheel can have a worm-shaped, a cylindrical, a spherical or a conical external geometry. Particularly preferably, the grinding body is designed as a grinding worm for finishing a toothed component.This makes it possible to produce toothed components with improved tribological properties and / or an increased dimensional accuracy and surface quality.An advantageous development of the abrasive body provides that an abrasive body contour of the first section is formed at least partially by abrasive means which have a load-bearing proportion of at most 30%. Preferably, the abrasive agents mentioned have a load-bearing proportion of at most 20%, and particularly preferably of at most 10%. The grinding body contour is to be understood in particular as the grinding body contour mentioned above in connection with the method.In the present context, the load-bearing portion describes a portion of at least one measurement path taken by the grinding means, which measurement path runs at a predetermined depth of the grinding body. In connection with the invention described in the present case, the load-bearing proportion is determined according to the methodology described in the standard DIN EN ISO 4287:1990, with the difference, however, that for the purpose of reducing a sensitivity of a measurement instead of the reference slice height described therein, an averaging of five individual measurements along the same measurement path is provided. Preferably, a length of each of the five individual measurements is at least 10 times a smallest grain size of the abrasive media of the abrasive body. In a proven embodiment variant of said measurement methodology, a geometric profile predefined by a measurement object along a part of a surface profile determined on the basis of the five said individual measurements is removed by calculation in a manner known to the person skilled in the art. As a result, a curvature predefined by the grinding body contour can be removed by calculation from the individual measurements mentioned. Said part of the surface profile can then be displayed along a straight line or a plane for the purpose of simple evaluation. For positioning the at least one measurement path in the part of the surface profile under consideration, a reference line or a reference plane is advantageously provided, which extends through a highest point formed by the grinding means located in the surface profile under consideration. Starting from this reference line or reference plane, the aforementioned at least one measurement path runs offset below the aforementioned reference line or reference plane by a distance of 10% of the grain size of the abrasive agents.In the context of the present invention, grain size is used as a measure of abrasive size. Values reported for the grain size correspond to the values established by the European Dressing of the Abrasive Manufacturers (FEPA) for a predetermined size of abrasive. These set values usually correspond to a mesh width of a screen used for the purpose of separating the abrasives having a predetermined size in micrometers. Typically, abrasive articles of uniform grain size are provided for a predetermined portion of an abrasive article. If a mixture of abrasive agents having different grain sizes is nevertheless present in a section of the abrasive body under consideration, a value of a largest grain size of the different grain sizes present is selected as the comparison value for the grain size in the present case, unless any difference is specified in connection with the present description.Due to a small load-bearing proportion, free-standing abrasives can be provided at low cost. These allow flow chip formation. As a result of associated low chip-forming forces, a breaking out of the aforementioned abrasives can be prevented in a simple manner. As a result, wear can be reduced and an abrasive body with a long service life can be provided. Furthermore, a time interval between two successive conditioning processes can thereby be increased. A change of the grinding body, which significantly influences a working result, can be avoided. For example, it is possible to prevent abrasive from being broken due to an engagement with the product and thus being re-sharpened. As a result, a constantly high quality can be achieved for a plurality of successively produced products. Furthermore, a combination of free-standing abrasives and low machining forces enables operation of the abrasive body at a low cutting speed. Furthermore, in this way, a risk of grinding fire can be significantly reduced. In the preferred application, a risk of grinding fire can be reliably avoided with the aid of the low load-bearing proportion and the associated low machining pressures. This in turn makes it possible to dispense with direct cooling in a contact region between the grinding body and the product. Floating of the grinding body as a result of the contact region being acted upon with high amounts of coolant can furthermore be prevented. Irregularities on an end profile of the product to be produced caused as a result can therefore be effectively reduced or even avoided. In addition, flow chips can be easily discharged from the contact region and kept away from it. Chip-related friction and thermal effects caused thereby can therefore be significantly reduced. In addition, a risk of damage to the abrasive body due to tilting or wedging of chips in the contact region can be reduced.In a further advantageous development, it is provided that the section conditioned in the first manner has receiving spaces into which flow chips formed by means of the aforementioned grinding means can be received.In the sense of the present invention, the mentioned receiving spaces are to be distinguished from a topological structure of the abrasive body, which is required to realize a profile of a product to be produced. For example, in the case of a grinding body with a worm-shaped topology, radial depressions which are provided for the purpose of receiving teeth to be machined of a toothing component do not represent receiving spaces within the meaning of the present invention. Expediently, a longest extension of the receiving spaces in the radial direction of the abrasive body is at most 10 mm, preferably at most 5 mm and particularly preferably at most 3 mm. Advantageously, the receiving spaces extend both along a surface of the abrasive body and into a depth of the abrasive body.The receiving spaces are preferably designed as pores arranged at least partially in a volume of the first section. As a result, receiving spaces can already be provided as an intrinsic material condition of the first section. Furthermore, flow chips can be incorporated into the first section of the abrasive body in a direction different from a circumferential direction, for example in the radial direction. Flow chips absorbed in the pores can then be removed in a simple manner by dressing the grinding body.Expediently, a material of the section conditioned in the first way is porous. In particular, the section conditioned in the first manner is open-pored. Preferably said portion has a porosity of at least 30% and at most 60%. Particularly preferably, said section has a porosity of at least 50% and at most 75%. In the case of weakly bonded abrasives, closed pores can also be used as receiving spaces in addition to open pores, in that a bonding material between abrasives is broken open by means of a flow chip. In the individual application, a stability of a part of the abrasive body can be increased by means of the flow chips embedded in pores.In a further advantageous development, a plurality of receiving spaces arranged next to one another at a distance from one another are provided. Large-area plateaus on a surface of the abrasive body can thereby be avoided. An influence of the receiving spaces on a topological structure of the abrasive body, which is required to produce a profile of the product, can be kept small. Moreover, a high chip-receiving capacity can thereby be provided. Chips accommodated in the accommodation spaces can be easily discharged by rotating the grinding body. Furthermore, in this way, an accumulation of flow chips, which impairs operation of the grinding body, can be avoided.Preferably, the plurality of accommodation spaces arranged next to one another are configured in the form of grooves. A groove-shaped receiving space is to be understood as a receiving space having a narrow, elongate extension. Such a shape and arrangement of the receiving spaces makes it possible to achieve uniform material removal. In addition, machining forces required in this way can be further reduced. A surface quality to be achieved in a product can thereby be increased in a simple manner.Particularly preferably, the receiving spaces arranged next to one another and configured in the form of grooves form a periodic structure. Viewed in a cross-sectional plane which is substantially perpendicular to a longitudinal extent of the groove-shaped receiving spaces, the mentioned periodic structure follows a sinusoidal profile or a sawtooth profile along at least one section, for example. In this way, despite the introduction of receiving spaces into the abrasive body, its topological structure can be obtained, which is required for the production of an end profile of the product.In an advantageous embodiment variant, directly adjacent receiving spaces of the plurality of receiving spaces are arranged spaced apart from one another at a distance of at least 0.5 times to at most 4 times a grain size of the abrasive agents of the abrasive body. Preferably, said distance is at least 1 to at most 2 times the grain size of the abrasive agents of the abrasive body.In the present context, the said distance is measured between a deepest recess of a first receiving space and a deepest recess of a further receiving space directly adjacent to the first receiving space. If the receiving spaces are groove-shaped receiving spaces, the distance is measured in a plane which is substantially perpendicular to a longitudinal extent of the groove-shaped receiving spaces. In the case that the recording spaces form a periodic structure, the said distance corresponds to a spatial period length of this periodic structure.Receiving spaces spaced apart in this way make it possible to further increase a service life of the abrasive body. Furthermore, a reliable cooling effect can be realized by means of receiving spaces spaced apart in this way. A risk of grinding fire is thus further reduced and can possibly even be avoided in a reliable manner.Advantageously, the plurality of receiving spaces each have a depth and / or width with a value from a value range of at least 25% to at most 75%, preferably of at least 40% to at most 60%, of a grain size of the abrasive agents of the first section of the abrasive body.The depth mentioned is measured in the radial direction in the present case, namely between a highest elevation and a deepest indentation of the grinding body, which delimits the space under consideration. The width mentioned is measured in the present case along a circumferential direction of the abrasive body, namely centrally between a highest elevation and a deepest indentation of the abrasive body, which delimit the space under consideration. If receiving spaces of groove-shaped design are considered, the width and / or depth is measured in a cross-sectional plane substantially perpendicular to a longitudinal extent of the groove-shaped receiving spaces.By means of receiving spaces configured in this way, flow chips can be reliably and securely received and temporarily stored. Furthermore, in this way, flow chips can be discharged in a targeted manner from an active region of the grinding body and conducted into the receiving spaces provided for this purpose. Moreover, the received flow chips can be ejected by a rotational movement of the grinding body in the case of receiving spaces configured in this way.The term "flow chip" is to be understood in particular as the flow chip already described above in connection with the method. In the preferred application, a flow chip produced by means of the grinding means of the abrasive body has a length of at least 0.4 mm. Preferably, said length is at least 1.2 mm and more preferably at least 2 mm. A thickness of the flow chip is preferably in a range of 2 μm to 10 μm inclusive. A width of the flow chip may assume a value from a range of 8 μm to 30 μm inclusive. Flow chips can have sufficient stability and a required deformability to be introduced into a porous structure of the abrasive body during a machining process. As a result, the flow chips can be easily discharged from the contact region between the abrasive body and the product to be produced. By receiving flow chips into the receiving spaces, cutting speeds can be further reduced. Cutting speeds of less than 75 m / s, advantageously less than 65 m / s and particularly advantageously less than 55 m / s can preferably be used. Machining forces that arise, such as machining pressures or chip formation forces, can thereby be further reduced. In addition, the receiving spaces can help minimize chip-related friction. Furthermore, a removal of thermal energy can be achieved by removing the flow chips. In the preferred application, therefore, a cooling of the abrasive body and / or of the product can be achieved.A further development of the abrasive body provides that an abrasive body contour at least partially delimiting the further section has a load-bearing proportion of at least 50%, preferably of at least 70%, and particularly preferably of at least 90%. In this way, a fracture chip formation can be promoted. As a result, the further section can be conditioned in such a way that only a small amount of material removal is achieved. A time chip volume can thus be reduced in a simple manner. Furthermore, with the aid of such a high load-bearing proportion, a product can be smoothed in addition to material removal. This enables an improved surface quality with reduced roughness and high dimensional accuracy to be achieved. Furthermore, roughness peaks can be plastically deformed in a simple manner. In this way, a product having improved cushioning properties or improved tribological properties can be produced.In a further advantageous development, it is provided that a material of the first section and a material of the further section have the same characteristic. As a result, an abrasive article with high availability can be provided. Furthermore, standard grinding bodies can be used. Moreover, in this way, an abrasive body can be provided which can be used in various ways. For example, the same abrasive body can be used for different machining steps, such as roughing or finishing.In an alternative development of the abrasive body, it is provided that a material with a characteristic of the first type is provided as the material of the first section and a material with a characteristic of the second type is provided as the material of the further section. The abrasive body is preferably designed as an integrated abrasive body, in which the first section is connected to the further section. The integrated abrasive body is in particular the integrated abrasive body already described in connection with the method.Using different materials, the abrasive body can be optimized for predetermined needs. For example, a separate dressing strategy can be provided for each material. Furthermore, different chip shapes or machining forces can be realized by means of a grinding body. This makes it possible to achieve high requirements for a surface quality to be achieved and / or for a dimensional accuracy to be achieved. Furthermore, precise products can thereby be produced in a high number of pieces in an efficient manner.The material with the second type of structure preferably has abrasives whose grain size is a value from a range of values from 260 μm to 25 μm inclusive. The grain size of the abrasive materials mentioned preferably has a value from a range of values from 120 μm to 25 μm inclusive and particularly preferably from 80 μm to 25 μm inclusive. This enables the material of the second type to be provided with coarse abrasive agents. In these cases, a blunt grinding effect can be achieved in a simple manner with high dimensional accuracy of the grinding body contour. A high load-bearing proportion can thereby be achieved. Furthermore, a surface of the product to be produced can thereby be subjected to high forces. In addition to a small amount of material being removed, this can allow a plastic deformation of roughness peaks on the surface of a product to be produced.As abrasive, the material with the second type of structure advantageously has Edelkorundum. This makes it possible to dispense with the use of expensive abrasive materials, such as, for example, sintered corundum.In an alternative embodiment, the material having the second type of structure can be embodied free of abrasives. As a result, the product can be rolled in a simple manner. Material removal can be dispensed with. This makes it possible to easily smoothen a surface of the product to be manufactured. As a result, a surface quality of a product to be produced can be optimized. Moreover, in this way, it is possible to prevent new surface defects from being caused by material removal.Furthermore, the material having the second type of structure is preferably made western free of pores. In particular, the material with the second type of structure has a porosity of at most 5%, preferably of at most 3%, and particularly preferably of at most 1% percent. Without pores, the product can be evenly pressurized. In addition, this makes it possible to avoid as far as possible the introduction of pore-induced irregularities into an end profile to be produced. In addition, stability of the abrasive body can be increased in this way. This allows the product to be subjected to uniformly high pressure. This makes it possible to carry out a plastic forming of roughness peaks efficiently and rapidly.The material of the first section preferably comprises abrasive material, the grain size of which corresponds to a value from a value range of at least 25 μm to at most 120 μm. By way of example, a grain size of 25 μm in the Angloasterikan measurement system corresponds to a grain size of 500 U.S. Standard mesh, a grain size of 120 μm corresponds to 120 U.S. Standard mesh. Advantageously, the aforementioned grain size is a value from a value range of at least 45 μm to at most 80 μm and particularly advantageously a value from a value range of at least 45 μm to at most 60 μm. With the aid of fine granulation, flow chip formation can be realized in a reliable manner. In addition, a high chip volume can thereby be provided. Further, in this manner, a large number of abrasives having a high cutting effect can be provided on a small area. In this way, vibrational excitations of the product, the grinding body and associated tool devices can be avoided in a simple manner. Furthermore, the fine granulation makes it possible that even with large chip volumes, with the aid of low chip formation forces, an end profile with a high surface quality and with high dimensional accuracy can be produced.More preferably, the material of the first section comprises Edelkorund as abrasive. This allows abrasive materials to be used which have high availability. Furthermore, modern and expensive conformers, such as sintered corundum, can be dispensed with in this way. Furthermore, Edelkorund makes possible a sharp dressing and thus a provision of abrasives with a high cutting effect. Such abrasives promote flow chip formation.Furthermore, in an advantageous embodiment variant, the material of the first section can have pores arranged at least partially in a volume of the abrasive body. These pores are in particular pores of the type already described in connection with the receiving spaces. Expediently, the first section mentioned corresponds to the section conditioned in the first manner explained in connection with the method.Furthermore, the material having the characteristic of the first type is preferably the material described in connection with the first section.Furthermore, in an alternative advantageous embodiment variant cubic boron nitride or diamond can be provided as abrasive of the first and / or the further section of the abrasive body. A long-lived abrasive article can be provided by means of cubic boron nitride or diamond. Conditioning of the abrasive body can be dispensed with. In a preferred embodiment, the first and / or the further section of the abrasive body has for this purpose a carrier medium, with which the abrasives embodied as cubic boron nitride or diamond are joined. In this way, the previously described support portions of the grinding means and the previously described groove-shaped receiving spaces can be reliably realized.The invention further provides a product having an end profile. The product is preferably designed as a toothed component.The final profile of the product advantageously has a corrugation of at most 120 nm, preferably of at most 80 nm and particularly preferably of at most 20 nm. In the present context, the corrugation is understood to mean a surface defect which denotes a deviation from a flatness of a final profile to be achieved. The ripple is therefore to be understood as a second-order shape deviation according to the specifications of the standard ISO 21920:2021. The ripple is usually determined by means of a tactile measurement. In the case of inadequate resolution, the tactile measurement can be evaluated by means of mathematical and / or computer-assisted ripple analysis. For example, a method described by Prof. Dr. Ing. G. Gravel's developed wavy analysis.By keeping undulations on a surface of a product small, vibrational excitation of the product itself as well as other components engaging the product can be kept small. Therefore, noise generation can be reduced with a reduction in ripple. In particular, undulations of 200 nm or more may already be responsible for a strong noise generation. This noise generation can be significantly reduced by using a product whose final profile has undulations of less than 200 nm, preferably of at most 150 nm.In an advantageous embodiment variant, the final profile of the product has a roughness value Rzof at most 1.4, preferably of at most 1.0 and particularly preferably of at most 0.6. In a further advantageous embodiment variant, the final profile of the product has a roughness value Rzof at least 0.3, preferably of at least 0.4 and particularly preferably of at least 0.5. The aforementioned roughness is to be understood as meaning a roughness determined in accordance with the specifications from the standard ISO 21920: 2021. Accordingly, the roughness is a first-order shape deviation. With a low roughness, good sliding properties of the product can be provided. In the preferred application, toothed components with reduced friction can be produced. As a result, an energy efficiency of the transmission can be increased.In a preferred embodiment, it is provided that the end profile of the product has a surface area percentage of at least 85%, preferably of at least 90% and particularly preferably of at least 95%. The stated surface area percentage is to be understood as the relative material percentage of the roughness (Rmr) according to ISO 21920-2:2021. The surface area percentage is therefore determined according to the measurement method described in the standard ISO 21920-2:2021 for determining the relative material percentage. For the purpose of determining the surface area percentage, a reference cut height c0(cp) of 5% is provided by way of example at a cut height c(dc) of 0.5 μm. In this context, a curvature predefined by the end profile is preferably calculated beforehand from the measured values. A high surface area percentage makes it possible to avoid high local pressures on the final profile of the product. Forces acting on the end profile can thus be introduced into the product over a large surface area. As a result, a long service life of the product and a low wear thereof can be achieved with a high fatigue strength. As a result, it is possible in particular to provide toothed components with improved tribological properties and with a high surface quality, which enable energy-efficient and low-noise operation of a transmission.Preferably, a shape of the final profile of the product deviates at most by an ffa value of 1.2 μm, advantageously of 0.8 μm and particularly advantageously of 0.4 μm, from a shape predefined for the final profile. The stated ffα value relating to a shape deviation is determined according to the measurement methodology described in the standard DIN ISO 21772:2012. With a precise final profile, products can be smoothly engaged with each other. If the product according to the preferred application is designed as a toothed component, the toothed component can be brought into engagement with other toothed components in a quiet and low-wear manner. Noise emission can thereby be further reduced. Furthermore, in this way, impacts or small vibrations between mutually engaging components can be kept small. This makes it possible to provide transmissions with high efficiency.In the preferred application of the embodiment of the product as a toothed component, by using the product according to the invention, noise emission of a system containing the product can be reduced by more than 60%, preferably by more than 70%, and particularly preferably by more than 90%, compared to a system of identical construction, in which products produced exclusively according to the prior art are used.In a product according to the invention embodied as a toothed component, it was already possible to achieve a reduction in total noise emission of a transmission by a sound pressure level of more than 10 dB (A). The aforementioned transmission was compared with a substantially identically constructed transmission in which only toothed components produced according to the previous prior art were used.It was thereby possible to establish that, when using the toothed component according to the invention, intensities of noise emissions at frequencies which correspond to an integer multiple of a tooth engagement frequency can be significantly reduced. A reduction of said intensities at at least a part of said frequencies makes it possible to provide a transmission that can be operated quietly. This can be used advantageously, inter alia, in electrically operated vehicles.The product according to the invention can be produced by means of the process according to the invention. Furthermore, a use of the abrasive body according to the invention for producing the product according to the invention has proven to be particularly advantageous.With the method and / or with the abrasive body, a product with a high surface quality and good tribological properties can be produced in a simple and economic manner. Advantageously, undulations on the final profile of the product can be kept low in terms of complexity and efficiency. Furthermore, a large number of products can thereby be produced at a high production rate, at which low noise generation during operation can be achieved. In addition, products produced in this way can be provided with good damping properties.The invention is explained in more detail below with reference to figures which relate to a preferred exemplary embodiment of the invention and its variations. If appropriate, identical or identically acting elements are provided with identical reference numerals. The invention is not limited to the embodiments shown in the figures-also not with respect to functional features. The description so far and the following description of the figures contain numerous features which are reproduced in the dependent claims in part combined to several. These features will also be considered individually by the skilled person and will be combined to form further meaningful combinations. The figures are schematic drawings which are not to scale.The following are shown: FIG. 1 shows an exemplary embodiment of an abrasive body according to the invention, which is designed as an integrated abrasive body with a worm-shaped abrasive body contour; FIG. 2 shows a detailed illustration of a section of a first abrasive body of the integrated abrasive body, in which receiving spaces of groove-shaped design are shown; FIG. 3 shows a detailed representation of a section of the first abrasive body conditioned in the first manner; FIG. 4 shows a detailed illustration of a first exemplary embodiment of a section of a second abrasive body of the integrated abrasive body conditioned in a further manner; FIG. 5 shows a detailed representation of a second exemplary embodiment of the section of the second abrasive body conditioned in the further manner; FIG. 6 shows a detailed representation of a third exemplary embodiment of the section of the second abrasive body conditioned in the further manner; FIG. 7 shows an illustration of a first example of the method according to the invention; FIG. 8 is an illustration of another example of the method according to the invention; FIG. 9 shows an embodiment of the product according to the invention; FIG. 10 shows results of two acoustic measurements in a Campbell diagram.FIG. 1 shows an exemplary embodiment of an integrated abrasive body 32 This integrated abrasive body 32 is composed, for example, of a first abrasive body 16 and a second abrasive body 20. As a result, the first and the second abrasive body 16, 20 have the same rotational axis 26, which corresponds to a rotational axis 26 of the integrated abrasive body 32.Furthermore, the integrated abrasive body 32 has an abrasive body contour 34 formed at least partially by abrasive agents 36. In the present exemplary embodiment, this is designed, for example, in the form of a worm. In this way, the integrated grinding body 32 can be used as a grinding worm for producing an end profile 10 of a product 12 embodied as a toothed component 12. Such a toothed component 12 is described in more detail below in connection with FIG. 9.The abrasive body contour 34 of the exemplary embodiment of the integrated abrasive body 32 has a first section 14 and a further section 18. The first section 14 is conditioned in the present case in a first manner and corresponds to a section of the grinding body contour 34 which is assigned to the first grinding body 16. In contrast to the first section 14, the further section 18 is conditioned in a second manner and corresponds to a section of the grinding body contour 34 which is assigned to the second grinding body 20.In conjunction with FIGS. 2 and 3, the first abrasive body 16 is explained in more detail below.The first abrasive body 16 has, for example, two types of receiving spaces 38. Groove-shaped receiving spaces 38 are explained in connection with FIG. 2, pores 44 as receiving spaces 38 are explained in connection with FIG. 3. Generally, these receiving spaces 38 serve the purpose of receiving flow chips 22 formed by abrasive agents 36 of the first abrasive body 16. Furthermore, the receiving spaces 38 of the first abrasive body 16 differ from indentations of the abrasive body contour 34 of the integrated abrasive body 32, which are required to realize the end profile 10 of a toothing component 12. The worm-shaped depressions of the abrasive body contour 34 in the integrated abrasive body 32 therefore do not represent receiving spaces 38 in the present sense.FIG. 2 shows a detailed view of a part of the first grinding body 16 with a first embodiment variant of the receiving spaces 38. Viewed in a cross-sectional plane which runs substantially perpendicular to a longitudinal extent 46 of the receiving spaces 38, the receiving spaces 38 shown are embodied as sinusoidal, for example. Advantageously, these groove-shaped receiving spaces 38 are introduced into the first abrasive body 16 as part of conditioning the first section 14. In a simple manner, a plurality of receiving spaces 38 arranged next to one another at a distance from one another can thereby be provided. Directly adjacent receiving spaces 38 of the plurality of receiving spaces 38 configured in the form of grooves preferably have a distance 52 which corresponds, for example, to at least twice the grain size of the abrasive agents 36 of the first abrasive body 16. In the present context, a depth 50 of the plurality of receiving spaces 38 embodied in the form of grooves is in each case 30% of a grain size of the abrasives 36 of the first abrasive body 16.FIG. 3 shows a further detailed view of a part of the first section 14 of the first grinding body 16 with a further variant embodiment of the receiving spaces 38. By way of example, the first abrasive body 16 has a material finish 40 with a porosity of 30%. Pores 44 which are arranged at least partially in a volume of the first abrasive body 16 serve in the present context as the second embodiment variant of the receiving spaces 38. Flow chips 22 produced by means of the grinding means 36 penetrate walls between the pores 44 with little exertion of force. As a result, the flow chips 22 can penetrate into a depth of the first grinding body 16, at least partially in the radial direction, and can be embedded there. During a dressing operation, these stored flow chips 22 can be removed in a simple manner. A greatest penetration depth of the flow chips 22 in the radial direction therefore corresponds at most to a length of a flow chip 22.The flow turnings 22 illustrated by way of example in FIGS. 2 and 3 are merely for the purpose of illustration and are not shown to scale. In the preferred application, the flow chips 22 have a length of about 2 mm. A thickness of a flow chip 22 is, for example, 4 μm, a width 12 μm.Furthermore, the groove-shaped receiving spaces 38 described in connection with FIG. 2 can be provided alternatively or additionally to the receiving spaces 38 described in connection with FIG. 3 embodied as pores 44. This makes it possible to provide a large chip-receiving capacity.Moreover, the first section 14 of the abrasive body contour 34 is conditioned in the first manner such that the abrasive agents 36, which form the abrasive body contour 34 along the first section 14, have a load-bearing proportion of at most 10%. This makes it possible to provide grinding means 36 which are as free-standing and weakly bonded as possible. Preferably, these abrasive agents 36 are also conditioned in such a way that they have sharp-edged fractures. This promotes the formation of flow chips 22. As abrasive 36, the first abrasive body 16 has, for example, Delkoround with a uniform grain size of 70 μm.Three preferred exemplary embodiments of the second abrasive body 20 are explained in more detail below in connection with FIGS. 4 to 6.FIG. 4 shows, as representative of a first exemplary embodiment of the second abrasive body 20, by way of example a part of the further section 18 of the abrasive body contour 34, which belongs to this first exemplary embodiment of the second abrasive body 20. In the first exemplary embodiment described here, the second abrasive body 20 has the same material quality 40 as the first abrasive body 16 described above. In contrast to the first abrasive body 16, the second abrasive body 20 is, however, conditioned differently, namely in such a way that those abrasive agents 36 which form the abrasive body contour 34 along the further section 18 have a load-bearing proportion of at least 70%. Furthermore, no groove-shaped receiving spaces 38 are provided for receiving flow chips 22 along the further section 18. Furthermore, the second section 18 is conditioned as blunt as possible. The high load-bearing proportion of at least 70% and butt-conditioned abrasive 36 lead to high machining forces being able to be realized. Furthermore, this makes possible the formation of broken chips 24. Such chips 24 are shown by way of example in FIG. 3 in a manner not true to scale. With the aid of high machining forces, it can also be achieved that only a small amount of material is removed on a machined surface. Besides, the high processing forces enable smoothing of the processed surface, in which roughness peaks are preferably plastically deformed.FIG. 5 shows a detail of the further section 18 as representative of a second exemplary embodiment of the second abrasive body 20. In contrast to the first exemplary embodiment of the second abrasive body 20, a material 42 of the second abrasive body 20 described here is embodied free of pores 44. Furthermore, the second exemplary embodiment of the second abrasive body 20 still has Edelkoun as abrasive 36. However, a larger grain size is selected compared to the abrasives 36 of the first exemplary embodiment of the second abrasive body 20. In the present case, this grain size is a value of 150 μm. In this way, the machining forces can be further increased. Smaller breaking chips 24 can be produced, whereby material removal can be further reduced in this case. This allows a surface quality and a smoothing effect to be increased.FIG. 6 shows a part of the further section 18 representative of a third exemplary embodiment of the second abrasive body 20, In contrast to the exemplary embodiments of the second abrasive body 20 explained in connection with FIGS. 4 and 5, the third exemplary embodiment of the second abrasive body 20 has a different material quality. This is free of grinding means 36 and free of pores 44 in the present case. Furthermore, chip formation and thus material removal can thereby be avoided. Without chip formation, a surface quality achieved can be further improved. The further section 18 of the third exemplary embodiment of the second abrasive body 20 is therefore suitable for rolling an end profile 10 to be produced. For this purpose, the second section 18 of the abrasive body contour 34 is preferably conditioned in such a way that it has a load-bearing proportion of at least 90%. As a result, roughness peaks of an end profile 10 to be produced can be reliably plastically deformed without a roughness being introduced again into the processed surface by means of material removal. By means of the plastic forming of roughness peaks, lubricant reservoirs can be created in a uniformly distributed manner. This makes it possible to optimize damping properties and tribological properties of a product 12 to be produced.FIG. 7 illustrates a first example of a method 100 afor producing an end profile 10 of a product 12 embodied as a toothed component.In the first example of the method 100 adescribed in the present case, an integrated abrasive body 32 is used to produce the end profile 10. This is expediently an integrated abrasive body 32 of the type described in connection with FIGS. 1 to 5. In this way, the first example of the method 100 acan optionally be carried out with an integrated abrasive body 32, in which the first abrasive body 16 and the second abrasive body 20 have the same material quality 40, or in which the first abrasive body 16 and the second abrasive body 20 have a different material quality 40, 42.For the purpose of producing an end profile 10 of a toothing component 12, the first example of the method 100 adescribed here provides that a section of the toothing component 12 is processed 104 in a processing step of the first type 102 by means of a section 14 of the first grinding element 16 of the integrated grinding element 32 conditioned in a first type. The machining step of the first type 102 is expediently a roughing operation in which a high chip volume can be achieved. During a machining 104, in this machining step of the first type 102, flow chips 22 are formed 110 by means of the section 14 conditioned in the first type. In the preferred application, an end profile 10 can be produced in this way in such a way that, depending on predefined requirements for this end profile 10, only minor optimizations are required, for example with regard to a surface quality of the end profile 10.It is subsequently provided that an end profile 10 to be produced is produced 108 by means of the section 18 of the second grinding body 20 conditioned in the second manner on the basis of the section of an end profile 10 already processed by means of the first type processing step 102. Preferably, the processing step of the second type 106 is a finishing operation, in which a small chip volume is usually achieved. Such a smoothing process is expediently carried out with the first or with the second exemplary embodiment of the second abrasive body 20, as described in connection with FIG. 4 or 5. In this way, during the second-type machining step 106, debris 24 is formed 112 by the second-type conditioned portion 18. The formation of broken chips 24 makes it possible to improve a surface quality of the section of the final profile 10 to be produced that is processed by means of the first type processing step 102. In connection with the formation of broken chips 24, the end profile 10 to be produced can be subjected to increased machining forces. In addition to material removal in the form of broken chips 24, a surface quality can be improved by means of partial plastic forming of roughness peaks.In order to be able to produce a plurality of tooth components 12 in succession, the first example of the method 100 adescribed here provides that the section 14 of the first grinding element 16 conditioned in the first manner is divided 116 along the axis of rotation 26 of the integrated grinding element 32 into a plurality of cylindrical subsections 28. Furthermore, it is provided by way of example that the section 18 of the second abrasive body 20 conditioned in the second manner is divided 116 along the mentioned rotational axis 26 into a plurality of cylindrical subsections 30.In the case of the aforementioned plurality of tooth components 12 to be produced successively, first of all, in the case of a first tooth component 12 from the aforementioned plurality of tooth components 12, the previously described machining step of the first type is carried out 102 by means of a predetermined cylindrical subsection of the aforementioned plurality of cylindrical subsections 28 of the first grinding body 16. Subsequently, the previously described machining step of the second type 106 is carried out 106 on the first toothed component 12 by means of a predetermined specific cylindrical subsection of the plurality of cylindrical subsections 30 of the second grinding body 20. After the end profile 10 of the first toothed component 12 has been produced 108, a further toothed component 12 from the said plurality of toothed components 12 is machined in the same way. As a result, in the case of the aforementioned plurality of toothed components 12, end profiles 12 can be produced 108 without a tool change by means of the first example of the method 100 a.Furthermore, the first example of the method 100 aprovises that, for each toothed component 12 of the aforementioned plurality of toothed components 12, the machining step of the first type 102 is started 118 in the predetermined cylindrical subsection 28 at the same starting point and ended 120 at the same ending point. Moreover, it is provided that, in each toothing component 12 of the aforementioned plurality of toothing components 12, the machining step of the second type 106 in the predetermined cylindrical subsection 30 is started 118 at the same starting point and is ended 120 at the same ending point. In this way, diagonal hifching which has been customary hitherto can be prevented. Structures on an end profile 10 caused as a result and thus adverse effects on a surface quality of the end profile 10 can be easily avoided. Furthermore, end profiles 10 can thereby be produced 108 reliably with a constantly high quality in the aforementioned plurality of toothed components 12.FIG. 8 illustrates in a schematic flow diagram a second example of a method 100 bfor producing an end profile 10 of a toothing component 12.The second example of the method 100 bis preferably carried out with an integrated abrasive body 32 of the type described in connection with FIGS. 1, 2 and 6. In contrast to the first example of the method 100 adescribed above, the processing step of the second type 106 takes place in this way without material removal. Instead, the final profile 10 to be produced is rolled 114 by means of the section 18 conditioned in the second manner. Therefore, neither flow chips 22 nor fracture chips 24 are formed in the second type machining step 106. By means of rollers 114, roughness peaks can be plastically deformed without material removal occurring. As a result, an end profile 10 of the toothing component 12 can be smoothed in a simple manner. Furthermore, by means of a plastic deformation of the roughness peaks, toothing components 12 with improved damping properties can be provided. Furthermore, a renewed introduction of a roughness due to a removal of material during the machining step of the second type 106 can be avoided. This makes it possible to optimize a surface quality of a final profile 10 to be produced. In addition, lubricant reservoirs can be created by means of a plastic deformation of the roughness peaks. These make it possible to realize toothed components 12 with improved tribological properties.FIG. 9 shows an exemplary embodiment of the toothed component 12 with an end profile 10 which is embodied as a gearwheel. The end profile 10 is produced 108 by way of example by means of the first example of the method 100 adescribed in connection with FIG. 7. Expediently, an integrated abrasive body 32 of the type described in connection with FIGS. 1 to 3 and FIG. 4 or 5 was used for producing 108 the end profile 10. In the processing step of the second type 106, therefore, material removal took place, in which breaking chips 24 were formed 112.The end profile 10 of the toothing component 12 has, for example, a corrugation of 80 nm. A roughness Rz of the end profile 10 is a value of 0.7 in this case. Furthermore, a surface area percentage of the end profile 10 is 90% in the present case by way of example. A shape of the end profile 10 deviates at most by 0.6 μm from a predefined end profile 10. These work results can be further improved by applying the second example of method 100 busing an abrasive-free second abrasive body 20. By way of example, the exemplary embodiment of the second abrasive body 20 explained in connection with FIG. 6 can be used for this purpose.The measurement results shown in FIG. 10 each show a gray scale representation of an intensity of a noise emission as a function of a tooth meshing frequency and a drive rotational speed. Such a representation of measurement results is known to the person skilled in the art under the designation Campbell diagram, among other things.A comparison of the blade set shown in FIG. 10( a) and in FIG. 10( b) shows that when at least one toothed component 12 of the type described above is used in a system comprising two mutually engaging toothed components, noise emission of the system can be significantly reduced. In practice, it has already been possible to achieve a reduction in a total noise emission of a transmission by more than 10 dB(A) with the aid of the toothed component 12 produced in the manner described above.The measurement results shown in FIG. 10( a) relate to noise emission of a system of the first type in which only toothed components produced according to the prior art engage one another. The measurement results which are reproduced in FIG. 10( b) relate to noise emission of a system of the second type which is designed substantially identically to the system of the first type, with the difference that one of the toothing components produced according to the prior art is replaced by a toothing component 12 produced by means of the method 100 a, 110 baccording to the invention. A comparison of the two measurement results shown in FIG. 10 shows that during operation of the second type system, noise emissions at frequencies which substantially correspond to an integer multiple of a tooth meshing frequency are significantly lower than noise emissions at the same frequencies which occur during operation of the second type system. Frequency lines with the greatest intensity differences are marked by arrows in FIG. 10 by way of example.List of reference characters10 End profile 12 Product 14 in the first type of conditioned section 16 First abrasive body 18 in the second type of conditioned section 20 Second abrasive body 22 Flow chip 24 Breaking chip 26 Axis of rotation 28 Cylindrical subsection 30 Cylindrical subsection 32 Abrasive body 34 Abrasive body contour 36 Abrasive 38 Receiving space 40 Material quality of the first type 42 Material quality of the second type 44 Pores 46 Length Receiving space 48 Width Receiving space 50 Depth Receiving space 52 Distance 100 aMethod 100 b Method 102 Processing step of the first type 104 Processing 106 Processing step of the second type 108 Manufacturing 110 Flow chip forming 112 Breaking chip forming 114 Rollers 116 Subsection 118 Beginning 120 EndsReferences included in the specificationThis list of documents cited by the applicant has been produced in an automated manner and is only included for the better information of the reader. The list is not part of the German patent application or utility model application. The DPMA does not take any adhesion for any faults or omissions.Cited Non-Patent LiteratureDIN EN ISO 4287:1990

[0043] ISO 21920-2:2021

[0077] DIN ISO 21772:2012

[0078]

Claims

Method (100a, 100b) for producing an end profile (10) of a product (12), in which - a section of the product (12) is processed (104) in a first type processing step (102) by means of a section (14) of a first abrasive body (16) conditioned in a first type; - subsequently an end profile (10) of the product (12) provided along said section is produced (108) in a second type processing step (106) by means of a section (18) of a second abrasive body (20) conditioned in a second type.Method (100a) according to Claim 1, in which - in the first type machining step (102), flow chips (22) are formed (110) by means of the section (14) of the first abrasive body (16) conditioned in the first type; - in the second type machining step (106), breakage chips (24) are formed (112) by means of the section (18) of the second abrasive body (20) conditioned in the second type.Method (100b) according to either of Claims 1 and 2, in which - in the first-type machining step (102), flow chips (22) are formed (110) by means of the section (14) of the first grinding body (16) conditioned in the first manner; - in the second-type machining step (106), by means of the section (18) of the second grinding body (20) conditioned in the second manner, the section of the product (12) machined in the first-type machining step (102) is rolled (114).Method (100a, 100b) according to one of Claims 1 to 3, in which a material of the same nature is provided in each case for the section (14) of the first abrasive body (16) conditioned in the first manner and for the section (18) of the second abrasive body (20) conditioned in the second manner.The method (100a, 100b) according to any one of claims 1 to 3, wherein for the first type conditioned portion (14) of the first abrasive body (16), a material having a characteristic different from a characteristic of a material of the second type conditioned portion (18) of the second abrasive body (20) is provided.Method (100a, 100b) according to one of the preceding claims, in which - the section (14) of the first abrasive body (16) conditioned in the first manner is divided (116) into a plurality of cylindrical subsections (28) along an axis of rotation (26) of the first abrasive body (16); - the machining step of the first type is carried out (102) on a plurality of products (12) by means of a predetermined cylindrical subsection of said plurality of cylindrical subsections (28) of the first abrasive body (16); - the machining step of the first type (102) is started (118) and / or ended (120) at the same starting point in the predetermined cylindrical subsection (28) on each product (12) of the aforementioned plurality of products (12); alternatively or additionally, the section (18) of the second abrasive body (20) conditioned in the second manner is divided (116) along an axis of rotation (26) of the second abrasive body (20) into a plurality of cylindrical subsections (30); the processing step of the second type is carried out (106) on a plurality of products (12) by means of a predetermined cylindrical subsection of the said plurality of cylindrical subsections (30) of the second abrasive body (20); the processing step of the second type (106) is started (118) in the predetermined cylindrical subsection (30) and / or is ended (120) at the same starting point for each product (12) of the aforementioned plurality of products (12).Method (100a, 100b) according to one of the preceding claims, in which - the machining steps of the first type (102) and of the second type (106) are carried out with an integrated abrasive body (32), in which the first abrasive body (16) is connected to the second abrasive body (20); - wherein an integrated abrasive body (32) is preferably used, in which the first abrasive body (16) is connected to the second abrasive body (20) in a rotationally fixed manner, and an integrated abrasive body (32) is particularly preferably used, in which the first abrasive body (16) is joined to the second abrasive body (20), preferably is connected in a force-fitting manner.Abrasive article (32) for carrying out the method (100) according to one of the preceding claims, having a first section (14) which is conditioned in a first manner, characterized by a further section (18) which is conditioned in a second manner.Abrasive body (32) according to claim 8, characterised in that - an abrasive body contour (34) of the first section (14) is formed at least partially by abrasive means (36), wherein said abrasive means (36) have a load-bearing proportion of at most 30%, preferably at most 20% and particularly preferably at most 10%; - the first section (14) has receiving spaces (38), into which flow chips (22) formed by means of said abrasive means (36) can be received.Abrasive body (32) according to Claim 8 or 9, characterized in that an abrasive body contour (34) which at least partially delimits the further section (18) has a load-bearing proportion of at least 50%, preferably of at least 70%, and particularly preferably of at least 90%.Abrasive body (32) according to one of Claims 8 to 10, characterized in that a material of the first section (14) and a material of the further section (18) have the same characteristic (40).Abrasive body (32) according to one of Claims 8 to 10, characterized in that - a material with a characteristic of the first type (40) is provided as the material of the first section (14); - a material with a characteristic of the second type (42) is provided as the material of the further section (18); - the abrasive body (32) is designed as an integrated abrasive body (32), in which the first section (14) is connected, preferably in a rotationally fixed manner, to the further section (18).Abrasive body (32) according to claim 12, characterised in that the material with the second type of condition (42) comprises - abrasive agents (36), the grain size of which is a value from a value range of 260 μm to 25 μm inclusive, preferably of 120 μm to 25 μm inclusive and particularly preferably of 80 μm to 25 μm inclusive; - Edelkorund as abrasive agent (36); - is substantially free of pores, in particular has a porosity of at most 5%, preferably of at most 3% and particularly preferably of at most 1%.Abrasive body (32) according to one of Claims 11 to 13, characterized in that the material of the first section (14) - has abrasive agents (36), the grain size of which corresponds to a value from a value range of at least 25 μm to at most 120 μm, preferably of at least 45 μm to at most 80 μm and particularly preferably of at least 45 μm to at most 60 μm; - has Edelkorund as abrasive agent (36); - has pores (44) which are arranged at least partially in a volume of the abrasive body (32) and are provided as the receiving spaces (38); - has a porosity of at least 30% and at most 60%, preferably of at least 50% and at most 70%.Product (12) having an end profile (10) produced by means of the method (100) according to one of Claims 1 to 7 and / or by means of the grinding body (32) according to one of Claims 8 to 14.Product (12) according to Claim 15, characterized in that - the product (12) is designed as a toothed component; - the end profile (10) has a corrugation with an amplitude of at most 120 nm, preferably of at most 80 nm and particularly preferably of at most 20 nm; - the end profile (10) has a roughness value Rz of at most 1.4, preferably at most 1.0 and particularly preferably of at most 0.6; - the end profile (10) has a roughness value Rz of at least 0.3, preferably of at least 0.4 and particularly preferably of at least 0.5; - the end profile (10) has a surface area percentage of at least 85%, preferably at least 90% and particularly preferably at least 95%; a shape of the final profile (10) of the product (12) deviates from a predetermined final profile shape by an ffa value of at most 1.2 μm, preferably of at most 0.8 μm and particularly preferably of at most 0.4 μm.

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