To realize a method for manufacturing a hub unit bearing capable of increasing the processing efficiency of a staking portion. An axial inner end portion of a hub ring 22 is processed into a staking portion 26 by rotating a die 31 around a reference axis C in a state in which the die 31 having a rotation axis α inclined with respect to the reference axis C is pressed against the axial inner end portion of the hub ring 22 under a condition that the hub ring 22 is disposed so that a center axis of the hub ring 22 is coaxial or parallel to the reference axis C and the hub ring 22 is supported to be radially movable.

Equipment and method in which a creator tool is pressed against an annular upset collar of an inner ring of a wheel hub and is provided towards the collar with a toothing complementary to the toothing to be obtained, formed by a plurality of radial teeth separated by respective radial spaces, all arranged radially in a circular crown, symmetrically with respect to a first axis (B) defining the axis of symmetry of the tool; wherein the creator tool is provided with an annular radial containment element configured to delimit a continuous wall which closes off respective radially outer ends of the radial spaces.

An insert including a taper is covered with a molten metal. A metal molded product with the insert joined thereto is generated by semi-cooling the molten metal to a press-fitting temperature which is higher than a recrystallization temperature of the molten metal and lower than a melting point of the molten metal. A fitting hole which is filled with the insert is formed in the metal molded product. The taper is fitted into the fitting hole. An undercut is not formed in front of a tip of the taper. The insert is press-fitted into the fitting hole while pressing and extending the fitting hole with the taper in a thinning direction of the taper at a press-fitting temperature. The metal molded product is further cooled with the press-fitting maintained.

An insert including a taper is covered with a molten metal. A metal molded product with the insert joined thereto is generated by semi-cooling the molten metal to a press-fitting temperature which is higher than a recrystallization temperature of the molten metal and lower than a melting point of the molten metal. A fitting hole which is filled with the insert is formed in the metal molded product. The taper is fitted into the fitting hole. An undercut is not formed in front of a tip of the taper. The insert is press-fitted into the fitting hole while pressing and extending the fitting hole with the taper in a thinning direction of the taper at a press-fitting temperature. The metal molded product is further cooled with the press-fitting maintained.

The present disclosure relates to a forging method and forging apparatus in which at front and rear portions of a workpiece, two products can be simultaneously shaped, thereby to improve a productivity of compression-shaping. The forging apparatus includes a press having upper and lower dies; a tray plate supply assembly configured to supply, by one pitch, a tray plate from one side of the press to an opposite side of the press along a middle portion between front and rear portions of a top of the lower die such that the tray plate can ascend and descend each time the upper die is raised; a punching unit disposed on the upper and lower dies at one side thereof to continuously form a workpiece fixing hole in the tray plate; a workpiece plate supply assembly disposed in front of an opposite side of the punching unit for feeding the workpiece plate by one pitch to a position below the workpiece fixing hole defined in the tray plate, wherein the workpiece plate supply assembly forms a through-protrusion to pass through the workpiece fixing hole on a front-rear directional middle portion in a portion of the workpiece plate corresponding to the fed one pitch; a cutting and pressing and fixing assembly provided on the upper and lower die at an opposite side of the punching unit for cutting the workpiece plate to be fed to the position below the workpiece fixing hole of the tray plate by one pitch and for pressing and fixing the through-protrusion formed on the middle portion of the cut workpiece into the workpiece fixing hole; and a pressing and shaping unit disposed on the upper and lower dies at an opposite side of the cutting and pressing and fixing assembly for compressing and shaping the fed workpiece.

The present invention relates to a fastening unit for fastening to a workpiece, said fastening unit comprising a rivet element and a reshaping element coupled to the rivet element and movable relative thereto, wherein the rivet element has a rivet section and the reshaping element has a reshaping section and a support section, which is arranged at a region of the reshaping element remote from the reshaping section, for axially supporting the fastening unit at an abutment. The rivet section and the reshaping section are designed such that, on an axial relative movement between the rivet element and the reshaping element that is produced by an introduction movement, the rivet section cooperates with the reshaping section and can be reshaped by it in a radial direction.

Steering rod for connecting an actuator to a turbocharger drive member, comprising an elongated main body (2), which extends between a first end (5) equipped with a first through-hole (7), and a second end (6) equipped with a second through-hole (8), and two bushings (3), (4) immovably mounted in the through-holes (7), (8), wherein the bushings (3), (4) are made of a material which has a greater resistance to mechanical wear than the material delimiting the through-holes (7), (8), and wherein each bushing (3) (4) has an outer surface that is in contact with an inner part of the through-hole (7), (8) and has a radial recess (9), the second material tightening the bushing (3), (4) preventing it from rotating and filling the recess (9) preventing the bushing (3), (4) from being extracted from the second through-hole (7), (8).

The invention relates to a self-punching fastening element for connecting a first workpiece to a second workpiece. The fastening element comprises a ring section that surrounds an opening of the fastening element in a peripheral direction and that has a workpiece contact surface, which is bounded at a radial outer side by a punching edge, and a shaft section that is connected to the ring section by means of a coupling section, that is arranged coaxially with the opening, that extends from the side of the ring section remote from the workpiece contact surface, and that has an outer contour that is designed complementary to an inner contour of the opening such that the shaft section can be guided at least partly through the opening after a separation of the connection with the ring section. Furthermore, the invention relates to a component assembly, comprising a self-punching fastening element as well as a first workpiece and possibly a second workpiece, and to a method of manufacturing the component assembly.

A fastener structure and an assembling method thereof are introduced. The fastener structure includes a head portion and a body portion. The body portion is movably connected to the head portion and includes a connecting section for assembling to an intermediate member. The intermediate member includes a material retaining section and can be further connected to an object. Partial material of the object would move or flow into the material retaining section when the intermediate member is forcefully pressed against the object, so that the intermediate member and the object are connected together. Since the body portion can be assembled to the intermediate member and the intermediate member can be further connected to an object, and the fastener structure can be fastened to and released from a target object, at least two objects can be repeatedly and quickly connected to and disconnect from one another using the fastener structure.

A fastener structure and an assembling method thereof are introduced. The fastener structure includes a head portion and a body portion. The body portion is movably connected to the head portion and includes a connecting section for assembling to an intermediate member. The intermediate member includes a material retaining section and can be further connected to an object. Partial material of the object would move or flow into the material retaining section when the intermediate member is forcefully pressed against the object, so that the intermediate member and the object are connected together. Since the body portion can be assembled to the intermediate member and the intermediate member can be further connected to an object, and the fastener structure can be fastened to and released from a target object, at least two objects can be repeatedly and quickly connected to and disconnect from one another using the fastener structure.