Abstract: An element attachable to a sheet metal part by riveting, having a shaft part and a head part. The head part has at its side con-fronting the sheet metal part a ring recess which merges at the radially inner side into a cylinder section of the head part which merges into the shaft part and into a tubular rivet section which surrounds the shaft part in the region of the head part. The head part is disposed within a 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. 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 base surface of the ring recess.

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: A functional element having a functional portion, a generally tubular rivet portion and a ring-like sheet metal contact surface is characterised in that features of shape are provided at the rivet portion for co-movement of the sheet metal part during the formation of the rivet bead, in particular at the free end of the rivet portion and/or at the radially outer side of the rivet portion, at least in the region adjacent the free end of the rivet portion. A component assembly comprising a functional element and a sheet metal part as well as a method for the attachment of a functional element to the sheet metal part are also claimed.

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: 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 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: 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: The invention relates to a rivet element, in particular for attachment to components of fiber composite materials, having a rivet section which is formed at least regionally as a spike which tapers in the direction towards a tip and which can be dilated by means of a die button.

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: The invention relates to a rivet nut (10) with a base part (12) and a cylindrical rivet section (14), the base part having a central threaded cylinder (16), an annular contact surface (18) that is coaxial to the threaded cylinder in a plane (20) perpendicular to the longitudinal axis (22) of the threaded cylinder, and that has an axially aligned annular groove (24), said groove being arranged radially inside the annular contact surface and radially outside the cylindrical rivet section and said groove blending, on the radially inner side, into the outer surface of the cylindrical rivet section, and antirotation ribs (42) being provided in the area of the annular groove.

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: A functional element having a functional portion, a generally tubular rivet portion and a ring-like sheet metal contact surface is characterized in that features of shape are provided at the rivet portion for co-movement of the sheet metal part during the formation of the rivet bead, in particular at the free end of the rivet portion and/or at the radially outer side of the rivet portion, at least in the region adjacent the free end of the rivet portion. A component assembly comprising a functional element and a sheet metal part as well as a method for the attachment of a functional element to the sheet metal part are also claimed.

Abstract: A functional element having a functional portion, a generally tubular rivet portion and a ring-like sheet metal contact surface is characterised in that features of shape are provided at the rivet portion for co-movement of the sheet metal part during the formation of the rivet bead, in particular at the free end of the rivet portion and/or at the radially outer side of the rivet portion, at least in the region adjacent the free end of the rivet portion. A component assembly comprising a functional element and a sheet metal part as well as a method for the attachment of a functional element to the sheet metal part are also claimed.

Abstract: A component assembly comprises a sheet metal and a fastener element. A flange has a larger diameter and a shaft of smaller diameter extends away from the flange and merges at its end remote from the flange into a cylindrical rivet section. The fastener element is used with sheet metals with thicknesses in the range of 3 mm and larger. With thin sheet metal parts the sheet metal has a smooth pierced cylindrical opening with a diameter corresponding to the diameter of the shaft. The cylindrical rivet section is reshaped to a rivet bead contacting the sheet metal underside. Medium thickness sheet metal parts have a stepped hole with the hole region of larger diameter receiving the rivet bead. For thick sheet metal parts the sheet metal has a conical pierced hole and the cylindrical rivet section is reshaped to a conical rivet bead wedged in the conically diverging hole.

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: An element attachable to a sheet metal part by riveting, having a shaft part and a head part. The head part has at its side con-fronting the sheet metal part a ring recess which merges at the radially inner side into a cylinder section of the head part which merges into the shaft part and into a tubular rivet section which surrounds the shaft part in the region of the head part. The head part is disposed within a 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. 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 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: 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: 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: 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).