Abstract: A method for determining the wear properties of coated flat products such as galvannealed flat steel products is provided herein. In order to be able to achieve better comparability of the determined wear properties of different flat products at least one bending parameter for the bending of the particular flat product by a bending device is selected in accordance with defined criteria on the basis of information regarding the thickness and/or the strength of the particular flat products to be bent. The flat products are bent in the bending device in accordance with the selected bending parameters, wear thus being produced. The wear properties are analyzed in a predetermined manner on the basis of the wear of the particular flat products.

Abstract: A new method of manufacturing a torque-transmitting clutch component is provided. The method includes coining an interface between a flange segment and a hub segment of the clutch component. Additionally, a torque-transmitting clutch component manufactured by the new manufacturing method is provided.

Abstract: A clutch ring gear assembly and method of construction thereof are provided. The assembly has a bearing seat including a flange extending radially outwardly from a central axis. The flange has a plurality of holes spaced circumferentially from one another about the central axis. A ring gear carrier includes a rim extending radially outwardly from the central axis. The rim has a plurality of through openings. Each of the through openings of the rim has an annular boss extending axially away from the rim in generally parallel relation to the central axis. The annular bosses are disposed within the holes and have hollow, annular end portions flared radially outwardly into engagement with the flange of said bearing seat to fixedly attach the ring gear carrier to the bearing seat.

Abstract: A clutch ring gear assembly and method of construction thereof are provided. The assembly has a bearing seat including a flange extending radially outwardly from a central axis. The flange has a plurality of holes spaced circumferentially from one another about the central axis. A ring gear carrier includes a rim extending radially outwardly from the central axis. The rim has a plurality of through openings. Each of the through openings of the rim has an annular boss extending axially away from the rim in generally parallel relation to the central axis. The annular bosses are disposed within the holes and have hollow, annular end portions flared radially outwardly into engagement with the flange of said bearing seat to fixedly attach the ring gear carrier to the bearing seat.

Abstract: A new method of manufacturing a torque-transmitting clutch component is provided. The method includes coining an interface between a flange segment and a hub segment of the clutch component. Additionally, a torque-transmitting clutch component manufactured by the new manufacturing method is provided.

Abstract: A method for determining the wear properties of coated flat products such as galvannealed flat steel products is provided herein. In order to be able to achieve better comparability of the determined wear properties of different flat products at least one bending parameter for the bending of the particular flat product by a bending device is selected in accordance with defined criteria on the basis of information regarding the thickness and/or the strength of the particular flat products to be bent. The flat products are bent in the bending device in accordance with the selected bending parameters, wear thus being produced. The wear properties are analysed in a predetermined manner on the basis of the wear of the particular flat products.

Abstract: A method and a device for determining a quality of a metallic surface of a metallic substrate, for example a steel or steel alloy substrate, are provided. The device includes a mould, a sheet holder and a die, with which the metallic substrate is formed to produce a drawn test surface. The method and device are used to test the quality of the metallic surface of a metallic coating with a view to a later utilization, especially with a view to a later forming, wherein the metallic substrate is formed at least in-an area of a test surface, wherein a main and an additional shape change of the metallic substrate in the area of the test surface assume predetermined values that are related to the later utilization of the metallic substrate, and wherein the quality of the metallic surface is tested on the test surface after forming.

Abstract: A method and a device for determining a quality of a metallic surface of a metallic substrate, for example a steel or steel alloy substrate, are provided. The device includes a mould, a sheet holder and a die, with which the metallic substrate is formed to produce a drawn test surface. The method and device are used to test the quality of the metallic surface of a metallic coating with a view to a later utilization, especially with a view to a later forming, wherein the metallic substrate is formed at least in-an area of a test surface, wherein a main and an additional shape change of the metallic substrate in the area of the test surface assume predetermined values that are related to the later utilization of the metallic substrate, and wherein the quality of the metallic surface is tested on the test surface after forming.

Abstract: A method and a device for determining a quality of a metallic surface of a metallic substrate, for example a steel or steel alloy substrate, are provided. The device includes a mould, a sheet holder and a die, with which the metallic substrate is formed to produce a drawn test surface. The method and device are used to test the quality of the metallic surface of a metallic coating with a view to a later utilization, especially with a view to a later forming, wherein the metallic substrate is formed at least in-an area of a test surface, wherein a main and an additional shape change of the metallic substrate in the area of the test surface assume predetermined values that are related to the later utilization of the metallic substrate, and wherein the quality of the metallic surface is tested on the test surface after forming.

Abstract: A method and a device for determining a quality of a metallic surface of a metallic substrate, for example a steel or steel alloy substrate, are provided. The device includes a mould, a sheet holder and a die, with which the metallic substrate is formed to produce a drawn test surface. The method and device are used to test the quality of the metallic surface of a metallic coating with a view to a later utilization, especially with a view to a later forming, wherein the metallic substrate is formed at least in-an area of a test surface, wherein a main and an additional shape change of the metallic substrate in the area of the test surface assume predetermined values that are related to the later utilization of the metallic substrate, and wherein the quality of the metallic surface is tested on the test surface after forming.