Abstract: The invention relates to a functional element in the form of a press-in element for attachment to a sheet metal part, wherein the functional element has a head part and a shaft part, the head part has a ring-shaped sheet metal contact surface at the side adjacent the shaft part and a ring-shaped axial recess inside this ring-shaped sheet metal contact surface and surrounding the shaft part at the transition from the head part into the shaft part. In accordance with the invention the shaft part has a plurality of circumferentially distributed radial recesses extending in the axial direction and between these noses which likewise extend axially and project radially, wherein raised material portions are present at the positions of the radial recesses at their axial ends adjacent the head part and form undercuts with the head part in the region of the ring-shaped recess.

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).

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: Described is a press-in element for pressing into a non-pierced or pre-pierced component. The press-in element has a head part having a ring surface confronting the component and a neck part which projects away from the ring surface, i.e. from the component contact side. The head part further has a ring-like projection surrounding the neck part with a radial spacing and projecting away from the ring surface. The neck part has a radially outwardly projecting ring bead, which can be formed as a continuous ring bead or as a ring bead interrupted at points. The apex of the ring bead has an axial spacing from the ring surface which is larger than the axial spacing of the apex of the ring-like projection from the ring surface, which lies radially within this projection and together with it and the ring bead forms a pocket which receives material of the component.

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 press-in element for pressing into a non-pierced or pre-pierced component, in particular a sheet metal part is described. The press-in element has a head part having a ring surface confronting the component and a neck part which projects away from the ring surface, i.e. from the component contact side. The head part further has a ring-like projection surrounding the neck part with a radial spacing and projecting away from the ring surface and the neck part has a radially outwardly projecting ring bead, which can be formed as a continuous ring bead or as a ring bead interrupted at points, with the apex of the ring bead having an axial spacing from the ring surface which is larger than the axial spacing of the apex of the ring-like projection from the ring surface, which lies radially within this projection and together with it and the ring bead forms a pocket which receives material of the component.

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: The invention relates to a functional element comprising a longitudinal axis, a body part, a hollow pressed part, an annular supporting surface which is arranged on the body part, substantially extended in a perpendicular direction with respect to the longitudinal axis and is radially displaced away from the pressed part and an annular groove which axially extends and is embodied in the body part radially inside the supporting surface. Locking ribs are preferably provided and at least partly cross the annular groove and the free end of the pressed part is provided with an annular cutting edge. The invention functional element is characterized in that an annular bulge is embodied on the pressed part between the annular supporting surface and the free end of the pressed part and an annular cavity is embodied around said pressed part between the bulge and the front free end thereof.

Abstract: A self-piercing hollow press-in element, in particular a nut element for attachment to a sheet metal part, wherein the press-in element has a flange part of a larger diameter and a shaft part of a smaller diameter. The shaft part extends away from the flange part and has a circular piercing edge at its end face remote from the flange part. The side of the flange part facing the shaft part forms a sheet metal contact surface in ring shape and features providing security against rotation are provided at the shaft part which extend approximately from the level of the sheet metal contact surface over a part of the length of the shaft part along the latter. A ring-like recess is provided radially within the ring-shaped sheet metal contact surface in the flange part and excess material for the shaft part which arises during manufacture of the ribs providing security against rotation is located within the ring recess.

Abstract: A functional element, in particular a bolt element consists of a shaft part and a head part designed for a rivet connection with a panel element, in particular a sheet metal part, with the head part being made hollow and having an outer diameter larger than that of the shaft part, is characterized in that the shaft part merges into the head part by a ring shoulder formed by a convexly rounded and in particular spherical surface such that the convexly rounded surface extends from the shaft part to the at least substantially cylindrical jacket surface of the head part.