Abstract: A method for providing an electrically conductive connection between an electric terminal device having a cavity and a sheet metal part. A hollow fixing element is riveted to the sheet metal part to prevent torsion producing an electrically conductive connection between the fixing element and the sheet metal part. The assembled component is then provided with an electrically non-conductive or poorly conductive protective coating. A receptacle for the electric terminal device is configured near the front face of the fixing element, to which the electrical terminal device is attached. The receptacle prevents the torsion of the terminal device in relation to the fixing element. The sheet metal part and a thread forming or cutting screw is screwed through the cavity of the electric terminal device into the hollow fixing element to form or cut a thread. The invention also relates to a corresponding fixing element and an assembled component.

Abstract: A functional element of metal having a flange of larger diameter forming an attachment surface and having a centering section arranged inside the attachment surface and extending away from the flange, is characterized in that an adhesive which hardens under pressure is arranged around the centering section and adjacent to the attachment surface.

Abstract: A functional element of metal having a flange of larger diameter from an attachment surface and a centering section arranged inside the attachment surface and extending away from the flange, characterized in that an adhesive is arranged around the cylindrical section and adjacent to the attachment surface.

Abstract: An element attachable to a sheet metal part by riveting, in particular an element in the form of a centering bolt, having a shaft part and a head part, wherein the head part has at its side confronting the sheet metal part an at least approximately ring-like ring recess which merges at the radially inner side into a cylinder section of the head part which in turn merges into the shaft part and into a tubular rivet section which surrounds the shaft part in the region of the head part, is disposed within a ring-like contact surface arranged radially outside of the ring recess and merges at the radially outer side via an at least approximately conical wall into the ring-like contact surface, is characterized in that at least one local recess and preferably a plurality of in particular uniformly distributed local recesses is or are provided in the conical wall of the ring recess and/or in an optionally present ring-like base surface of the ring recess.

Abstract: The invention relates to a method for producing hollow body elements (200), for example, nut elements which are applied to components which are normally made of steel (280), in particular, for producing hollow body elements having an essentially quadratic or rectangular external profile (202). Said method consists of cutting individual elements of a profile in the form of a profile rod (1) or a winding after holes (204) have previously been stamped in the profile, a threaded cylinder (206) is subsequently, optionally, formed using a follow-on composite tool (10) which consists of several working stations. The invention is characterized in that a penetrating process and a punching process are carried out in the working station. The invention also relates to hollow body elements (200), components, follow-on composite tools (10) and rolling mills (600, 602).

Abstract: A self-piercing nut element having a strength in the range between 700 and 900 MPa is described which is designed for press fitting into a sheet metal part (40). The nut element is characterized in that the nut element is designed, for the self-piercing attachment of the nut element into a higher strength sheet metal part, such that the piercing section merges directly into the sheet metal contact surface and such that the piercing section has a piercing edge at its free end face, with the piercing edge being spaced apart from the sheet metal contact surface by a peripheral surface having an axial height which corresponds to at least 30%, and preferably at least 50%, of the sheet metal thickness, with the radial wall thickness of the piercing section in the region of its free end face from the outer side up to the nominal diameter of the thread corresponding to a thickness between 1.2 times, to 1.8 times, and preferably 1.5 times, the provided sheet metal thickness.

Abstract: A method for providing an electrically conductive connection between an electric terminal device having a cavity, such as a cable shoe, and a sheet metal part. A hollow fixing element is riveted to the sheet metal part to prevent torsion, thus producing an electrically conductive connection between the fixing element and the sheet metal part. The assembled component is then provided with an electrically non-conductive or poorly conductive protective coating, such as a lacquer coating or powder coating. A receptacle for the electric terminal device is configured in the vicinity of the front face of the fixing element, to which the electrical terminal device is attached. The receptacle prevents the torsion of the terminal device in relation to the fixing element. The sheet metal part and a thread forming or cutting screw is screwed through the cavity of the electric terminal device into the hollow fixing element. The screwing action forms or cuts a thread.

Abstract: A section (10; 110) is provided for the manufacture of hollow body elements, in particular for the manufacture of pierce and rivet nuts having a square or rectangular outline in plan view and a ring-like piercing section (36; 236) at a side confronting a component consisting of a sheet metal material or the like. The section (10; 210) is at least substantially rectangular in cross-section with two bars (14, 16; 214, 216) at the side (12; 212) later confronting the component. The bars are spaced apart and extend parallel to the longitudinal sides (18, 20; 218, 220) of the section, are likewise at least substantially rectangular in cross-section and form, in the finished element (11, 211), a feature providing security against rotation. The bars respectively each have an inclined flank (68, 70; 268, 270) at the inner side which forms an undercut (69, 71; 269, 271).

Abstract: A piercing nut element having a strength in the range between 700 and 900 MPa which is designed to be pressed into the sheet metal part. The nut element is characterized in that the self-piercing attachment of the nut element into a sheet metal part of higher strength, or into a sheet metal part with a thickness greater than 3.5 mm, the nut element is designed in such a way that the piercing section has a peripheral extending groove below the sheet metal contact surface and in that the piercing section has a piercing edge at its free end face with the piercing edge being spaced from the boundary of the groove adjacent to the piercing section by a peripheral surface having an axial height which corresponds to at least 30% and preferably to at least 50% of the sheet metal thickness, wherein the radial wall thickness of the piercing section in the region of its free end face from the outer side of the piercing section up to the nominal diameter of the thread corresponds to a thickness between 1.2 to 1.

Abstract: The invention relates to a method for creating an electrically conductive connection between an electric terminal device having a cavity, such as a cable shoe, and a sheet metal part. According to said method, a hollow fixing element is riveted to the sheet metal part to prevent torsion, thus producing an electrically conductive connection between the fixing element and the sheet metal part and the assembled component is then provided with an electrically non-conductive or poorly conductive protective coating, such as for example a lacquer coating or powder coating.

Abstract: An element attachable to a sheet metal part by riveting, in particular an element in the form of a centering bolt, having a shaft part and a head part, wherein the head part has at its side confronting the sheet metal part an at least approximately ring-like ring recess which merges at the radially inner side into a cylinder section of the head part which in turn merges into the shaft part and into a tubular rivet section which surrounds the shaft part in the region of the head part, is disposed within a ring-like contact surface arranged radially outside of the ring recess and merges at the radially outer side via an at least approximately conical wall into the ring-like contact surface, is characterized in that at least one local recess and preferably a plurality of in particular uniformly distributed local recesses is or are provided in the conical wall of the ring recess and/or in an optionally present ring-like base surface of the ring recess.

Abstract: A method and an apparatus for the attachment of a fastener element to a component, for example a sheet metal part, wherein the fastener element is a nut element and has an axis of symmetry, a head part having a contact surface which enters into contact with the component, a threaded bore and also at least one undercut which receives the material of the component, and wherein the material of the component is pressed against the contact surface and into the undercut by means of a first tool having a die button shape matching the design of the nut element. A local force is exerted on the head part of the nut element or onto the tool to the side of the axis of symmetry and is moved circularly around the axis of symmetry while simultaneously carrying out a relative feed movement between the tool and the nut element between which the component is arranged in order to press the material of the component into the undercut.

Abstract: An element attachable to a sheet metal part by riveting, in particular an element in the form of a centering bolt, having a shaft part and a head part, wherein the head part has at its side confronting the sheet metal part an at least approximately ring-like ring recess which merges at the radially inner side into a cylinder section of the head part which in turn merges into the shaft part and into a tubular rivet section which surrounds the shaft part in the region of the head part, is disposed within a ring-like contact surface arranged radially outside of the ring recess and merges at the radially outer side via an at least approximately conical wall into the ring-like contact surface, is characterized in that at least one local recess and preferably a plurality of in particular uniformly distributed local recesses is or are provided in the conical wall of the ring recess and/or in an optionally present ring-like base surface of the ring recess.

Abstract: A section (10; 110) is provided for the manufacture of hollow body elements, in particular for the manufacture of pierce and rivet nuts having a square or rectangular outline in plan view and a ring-like piercing section (36; 236) at a side confronting a component consisting of a sheet metal material or the like. The section (10; 210) is at least substantially rectangular in cross-section with two bars (14, 16; 214, 216) at the side (12; 212) later confronting the component. The bars are spaced apart and extend parallel to the longitudinal sides (18, 20; 218, 220) of the section, are likewise at least substantially rectangular in cross-section and form, in the finished element (11, 211), a feature providing security against rotation. The bars respectively each have an inclined flank (68, 70; 268, 270) at the inner side which forms an undercut (69, 71; 269, 271).

Abstract: Disclosed are a method and a device for mounting a fastening element (12, 12?) on a part, e.g. a sheet metal part (13, 13?). Said fastening element comprises an axis of symmetry (18), a head piece (14) with a contact surface (22) that comes in contact with the part (13), a fastening section encompassing a thread (15, 15?), and at least one undercut (24, 82) which accommodates the material of the part. The material of the part is pressed against the contact surface and into the undercut by means of a first tool (26-26???) which is provided with a female die that is suitable for embodying the fastening element.

Abstract: A method and an apparatus for the attachment of a fastener element to a component, for example a sheet metal part, wherein the fastener element has an axis of symmetry, a head part having a contact surface which enters into contact with the component, a fastening section having a thread and also at least one undercut which receives the material of the component, and wherein the material of the component is pressed against the contact surface and into the undercut by means of a first tool having a die button shape matching the design of the fastener element, are characterized in that a local force is exerted on the head part of the fastener element or onto the tool to the side of the axis of symmetry and is moved circularly around the axis of symmetry while simultaneously carrying out a relative feed movement between the tool and the fastener element between which the component is arranged in order to press the material of the component into the undercut.

Abstract: Disclosed is a method for producing hollow elements (200), such as nut elements, which are to be mounted on parts generally made of sheet metal, particularly for producing hollow elements having an at least substantially square or rectangular outer contour (202). According to said method, individual elements are cut to size from a profiled member that is provided in the form of a profiled bar or a reel after punching holes into said profiled member, optionally followed by embodying a threaded cylinder (206) using a follow-on composite tool (10) with several workstations (A, B, C, D). The inventive method is characterized in that a penetrating process, a punching process, and a flattening process are carried out in the workstations (A, B, C, D). Also disclosed are hollow elements (200), assembly pieces, and a follow-on composite tool (10).

Abstract: A component assembly comprising a sheet metal part and a fastener element which has a flange part of larger diameter and a shaft part of smaller diameter which extends away from the flange part and merges at its end remote from the flange part into a cylindrical rivet section is characterized in that the fastener element is designed for use with sheet metal parts with thicknesses in the range of 3 mm and larger. With relatively thin sheet metal parts the sheet metal part has a smooth pierced cylindrical opening which has a diameter corresponding to the diameter of the shaft part, with the cylindrical rivet section being reshaped to a rivet bead which contacts the underside of the sheet metal part. With sheet metal parts of medium thickness the sheet metal part has a stepped hole with the hole region of larger diameter receiving the rivet bead.

Abstract: A spacer element which is designed at both ends for the attachment to a sheet metal part or to a hollow section for the formation of a component assembly and which optionally has a fastener section with an internal thread or external thread for the attachment of a component to the component assembly by means of a screw or a nut, is characterized in that the spacer element is not deformable or at least substantially not deformable on attachment to the sheet metal part or to the hollow section and in that the spacer element is provided at both end faces with respective undercuts for the form-fitted reception of sheet metal material or of the wall material, whereby the spacer element is secured to the sheet metal part or to the hollow section and preferably also secured against rotation. Various variants, component assemblies and methods are likewise described and claimed.

Abstract: Disclosed is a method for producing hollow elements (200), such as nut elements, which are to be mounted on parts generally made of sheet metal, particularly for producing hollow elements having an at least substantially square or rectangular outer contour (202). According to said method, individual elements are cut to size from a profiled member that is provided in the form of a profiled bar or a reel after punching holes into said profiled member, optionally followed by embodying a threaded cylinder (206) using a follow-on composite tool (10) with several workstations (A, B, C, D). The inventive method is characterized in that a penetrating process, a punching process, and a flattening process are carried out in the workstations (A, B, C, D). Also disclosed are hollow elements (200), assembly pieces, and a follow-on composite tool (10).