A self-piercing rivet element is provided with a body part having a thread cylinder and with a hollow rivet section to be pressed into an as yet unpierced component. In this arrangement, the rivet section is designed to be at least regionally dilatable by means of a die button and tapers in the direction of the central longitudinal axis and away from the body part. The hollow rivet section has, in the region of the transition to the body part, a diameter, which is larger than the outer diameter of the thread cylinder. Furthermore, the rivet section has a closed peripheral wall and an opening at its free end which corresponds at least substantially in diameter to the core diameter of the thread cylinder. Furthermore a component assembly, a method for the manufacture of the component assembly and the die button are claimed.

A buoyant fastener structure includes a body portion and a fastening element. The body portion has a rotation-preventing portion and a position-limiting portion. The fastening element has a position-corresponding rotation-preventing portion, a position-corresponding position-limiting portion and a fastening portion. The rotation-preventing portion and the position-corresponding rotation-preventing portion prevent each other from rotating. A rotation-preventing buoyancy level exists between the rotation-preventing portion and the position-corresponding rotation-preventing portion. The position-limiting portion corresponds in position to and limits the position of the position-corresponding position-limiting portion. Therefore, the body portion is coupled to a first object, whereas the fastening portion is coupled to or removed from a second object, so as for the first and second objects to be coupled together and separated, repeatedly and quickly. Furthermore, the second object coupled to the first object is movable on the fastening element to adjust the position of the second object.

A self-punching functional element serves for the fastening to a workpiece and comprises a head part that has an abutment surface for introducing a punching force directed in a punching direction into the functional element and a rivet section that extends away from the head part in the punching direction and that comprises a free end that is provided with a first punching edge for punching a slug out of the workpiece. The functional element further comprises a functional section that has a punching pilot that is radially surrounded by the rivet section, that extends away from the head part in the punching direction, and that has a second punching edge for punching a hole into the slug. The second punching edge is set back with respect to the first punching edge in the punching direction.

The present invention relates to a self-punching functional element that is adapted for punching into a workpiece, in particular into a sheet metal part. It comprises a head part forming a flange and having a contact surface for contact with the workpiece; and a punching section that extends away from the head part, in particular from the contact surface, and that is in particular arranged coaxially to a central longitudinal axis of the functional element. The punching section has a peripheral punching edge at its free end for punching through the workpiece and surrounds a cavity in a peripheral direction, said cavity having an opening defined by the punching edge. An inner wall of the punching section facing the cavity has at least one elevated slug securing portion projecting radially inwardly into the cavity, in particular wherein the elevated portion has the form of a rib extending in an axial direction.

The invention relates to a fastening element for fastening to a workpiece, said fastening element comprising at least a first workpiece element having a first opening and a second workpiece element having a second opening aligned with the first opening, wherein the fastening element has a first contact section having a first contact surface for contact with a region of the first workpiece element surrounding the first opening and a second contact section having a second contact surface for contact with a region of the second workpiece element surrounding the second opening, with the first contact section and the second contact section being connected to one another by means of a reshaping section, and with a rivet section extending from the second contact section in a direction facing away from the reshaping section. The invention further relates to a corresponding component assembly and to a method of manufacturing such a component assembly.

A fastener comprising a pin and a collar. The pin comprising a shank comprising a tapered lock groove thread profile; and a head portion configured to receive a torque. The collar configured to be deformed onto and secured to the shank, wherein the collar comprises an external surface configured to receive a torque such that the collar can be removed from the shank after deformation.

The present invention relates to an apparatus for fastening a functional element to a section of a workpiece and/or for reshaping a section of the workpiece, said apparatus comprising a support device for supporting the workpiece, wherein the workpiece section has a first surface facing the support device and a second surface facing away from the support device. The support device comprises a first support element having a first workpiece support surface that is associated with the first surface, and a second support element having a second workpiece support surface that faces away from the first workpiece support surface and that is associated with a supporting surface. The first and the second support element are movable relative to one another by means of a spreading device such that the first and the second workpiece support surface can be moved away from one another in an axial direction, in particular wherein the axial direction extends perpendicular to the first and/or second workpiece support surface.

An axle mounting unit for commercial vehicles a surrounding element, an end element, at least one fastening element and a securing device, configured for mounting a first chassis part that comprises an axle, with a second chassis part that comprises a control arm, wherein a surrounding element is arranged on the first chassis part, an end element is arranged on the second chassis part, wherein the surrounding element has at least two legs extending in a leg direction, the end element extends between the two legs, the fastening element braces the end element with the surrounding element, the securing device creates a form-fit securing device that limits and/or prevents a displacement of the separated part in the leg direction in a positive-locking manner in the event of mechanical failure.

A component bond out of an additively manufactured component out of metal or plastic material having an inner receiving space that is open on at least one side on a component opening, which is accessible from a component side and is configured fungiform in an axial cross section. The receiving space includes at least one widened molding section facing the component opening and at least one cylinder shaped support section facing away from the component opening, wherein a blind rivet nut or a blind rivet bolt are fastened in the receiving space by a compression bead of the blind rivet nut or of the blind rivet bolt extending into the molding section.

Blind rivet fastener and method of forming blind rivet fastener. The blind rivet fastener includes a blind rivet sleeve having a set head end with a set head and a shank end, and a stud structured and arranged so that a receiving section projects from the set head end and so that an attachment section projects from the shank end.