Abstract: A battery includes a number of single cells interconnected in series and/or in parallel, the electrical poles of which for the electrical interconnection are connected to one another in a positive-fit and/or integrally bonded manner, directly or by means of cell connectors. The battery also includes a battery monitoring unit connected to the electrical poles and/or to the cell connectors in a positive-fit and/or integrally bonded manner. The electrical poles of the single cells, the cell connectors, and/or the battery monitoring unit have redundant contact areas for the positive-fit and/or integrally bonded connection. In each case only one of the contact areas which are redundant with one another is connected in a positive-fit and/or integrally bonded manner, and the further contact area(s) is/are not connected.

Abstract: A method for non-releasable fixing of at least one component to a further component is provided in which a hot rivet is introduced into an opening of the at least one first component and an end face of a shank of the hot rivet is welded to a surface of the further component. Subsequently, with plastic deformation of the hot rivet, the shank of the hot rivet is compressed until a head of the hot rivet lies with a pre-stressing force at least in areas on a surface of the at least one component. The pre-stressing force, with which the head of the hot rivet lies at least in areas on the surface of the at least one component, is adjusted to a predefined value.

Abstract: For connecting a shaft to a rotating component, especially of a shaft to a turbine wheel of an exhaust gas turbocharger, an intermediate component is provided by means of which the shaft is connected indirectly to the rotating component. The connection between the rotating component and the intermediate component is a form-locking and/or force-locking connection, especially a riveted connection.

Abstract: A battery includes a number of single cells interconnected in series and/or in parallel, the electrical poles of which for the electrical interconnection are connected to one another in a positive-fit and/or integrally bonded manner, directly or by means of cell connectors. The battery also includes a battery monitoring unit connected to the electrical poles and/or to the cell connectors in a positive-fit and/or integrally bonded manner. The electrical poles of the single cells, the cell connectors, and/or the battery monitoring unit have redundant contact areas for the positive-fit and/or integrally bonded connection. In each case only one of the contact areas which are redundant with one another is connected in a positive-fit and/or integrally bonded manner, and the further contact area(s) is/are not connected.

Abstract: A weld rivet joint between one or more components and a base component is provided. The one or more components have a hole through which a weld rivet having a head projects with its shank. The shank is welded to the surface of the base component by its end face and is plastically deformed. The weld rivet has a shank that is shorter than its head diameter, and in a transition region between head and shank a continuous annular recess is provided for the accommodation of material displaced in the riveting process and/or for tolerance compensation.

Abstract: A method for non-releasable fixing of at least one component to a further component is provided in which a hot rivet is introduced into an opening of the at least one first component and an end face of a shank of the hot rivet is welded to a surface of the further component. Subsequently, with plastic deformation of the hot rivet, the shank of the hot rivet is compressed until a head of the hot rivet lies with a pre-stressing force at least in areas on a surface of the at least one component. The pre-stressing force, with which the head of the hot rivet lies at least in areas on the surface of the at least one component, is adjusted to a predefined value.

Abstract: A rotating mass component with high balancing quality is provided. The balancing is performed in a substantially automated manner and without chip formation. A method for balancing a rotating mass component, such as a rotor is achieved by deposition welding of welding points on the mass component. The mass symmetry respective to the rotation axis is improved. The deposition welding takes place through cold metal transfer welding, in particular of a plurality of individual mass points.

Abstract: A weld rivet joint between one or more components and a base component is provided. The one or more components have a hole through which a weld rivet having a head projects with its shank. The shank is welded to the surface of the base component by its end face and is plastically deformed. The weld rivet has a shank that is shorter than its head diameter, and in a transition region between head and shank a continuous annular recess is provided for the accommodation of material displaced in the riveting process and/or for tolerance compensation.

Abstract: For connecting a shaft to a rotating component, especially of a shaft to a turbine wheel of an exhaust gas turbocharger, an intermediate component is provided by means of which the shaft is connected indirectly to the rotating component. The connection between the rotating component and the intermediate component is a form-locking and/or force-locking connection, especially a riveted connection. The invention further relates to a method for producing said connection.

Abstract: The invention relates to an axle journal (1) which is connected to a vehicle body and which comprises an approximately rotation-symmetrical bearing journal (3) which can be connected to a wheel (5) of the vehicle. The invention also relates to a method for producing an axle journal (1). According to the invention, the axle journal is embodied in a divided manner, comprising an axle journal base body (7) and bearing journals (3), which penetrate a corresponding opening (9) in the axle journal base body (7), in order to meet the requirements of the high component stresses and to produce the axle journal (1) in an economical manner. The bearing journals (3) comprise a journal part (11) and a counter part (13), which are connected together inside the opening (9) by means of a press welding method.