A method for producing a connection between a sandwich element and a metal element is disclosed herein. In this method, the sandwich element has an interlayer arranged between two cover elements. The method includes providing the sandwich element and the metal element; placing the sandwich element and the metal element in face-to-face contact at least partially overlapping; adding a fastener from the sandwich-element side while a base of the fastener extends within the sandwich element; and friction welding, from the metal-element side, to form a hybrid connection having a mechanical connection between the fastener and the sandwich element and a welding connection between the fastener and the metal element.

A method for joining dissimilar materials is provided. The method includes a solid-state joining process in which a rivet is plunged into a predrilled hole in a top workpiece. When the rivet contacts the bottom workpiece, ultrasonic vibration by oscillatory motion of a sonotrode, such as horizontal, vertical, or rotational motion, creates frictional heat at the interface between the rivet and the lower workpiece. With the aid of frictional heat and axial compression, metallurgical bonding is achieved at the interface between the rivet and the bottom sheet, while being below the melting temperature of the bottom workpiece. The sonotrode is retracted while the rivet remains.

A method for joining dissimilar materials is provided. The method includes a solid-state joining process in which a rivet is plunged into a predrilled hole in a top workpiece. When the rivet contacts the bottom workpiece, ultrasonic vibration by oscillatory motion of a sonotrode, such as horizontal, vertical, or rotational motion, creates frictional heat at the interface between the rivet and the lower workpiece. With the aid of frictional heat and axial compression, metallurgical bonding is achieved at the interface between the rivet and the bottom sheet, while being below the melting temperature of the bottom workpiece. The sonotrode is retracted while the rivet remains.

A swage collar includes a shank, a flange, and a through bore. The shank includes a first end, a second end opposite the first end, an outside diameter, and an overall length between the first end and the second end. The flange extends from the first end of the shank. The through bore extends longitudinally through the shank from the first end of the shank to the second end of the shank. The through bore defines an inside diameter. The inside diameter and the outside diameter together define a wall thickness of the shank. The wall thickness of the shank is in a range of about 0.1 times the overall length of the shank to about 0.16 times the overall length of the shank.

A repair method for repairing an assembly including a main body and an old reinforcement, the assembly including an initial hole passing through the old reinforcement and at least a portion of the main body, the method including removing the old reinforcement; positioning a plug in the initial hole in the main body; fastening a new reinforcement on the main body, the new reinforcement covering the plug; and forming a new hole passing through the new reinforcement and at least a portion of the main body.

A drive assembly for a torque converter is provided. The drive assembly includes a turbine shell and a damper assembly fixed to the turbine shell by at least one rectangular rivet. A method of forming a drive assembly for a torque converter is also provided. The method includes fixing a turbine shell and a damper assembly together by a plurality of rectangular rivets.

The present invention relates to a blind rivet nut allowing an easy automated setting comprising a head forming a flange, a shank comprising a head end, a foot end and a cylindrical bore extending along a longitudinal axis (X) from the head end to the foot end, the bore having a first bore segment near the foot end and a second bore segment near the head end, the wall surrounding the second bore segment forming a deformable region of the shank and having an external wall diameter, the foot end having a foot end diameter, wherein the foot end of the shank comprises a tapered chamfer making a foot end angle of 21 to 25 degrees with the longitudinal axis (X), and wherein the ratio of the foot end diameter to the external wall diameter is between 0.65 and 0.82.

A family of rivets including both blind and bucked-type rivets made at least partially from an amorphous metal alloy. A blind rivet includes a head portion and a tail portion. At least one of the head portion and the tail portion is configured to elastically deform to secure a first member in position relative to a second member. The head portion and the tail portion may include one or more deformable legs having an interface feature configured to engage with one of the first member and the second member. A bucked-type rivet assembly includes a formable member and an anvil. The anvil is configured to thermoplastically deform the formable member proximate to the second member by passing current through an electrical circuit that includes at least one of the formable member and anvil.

A process monitoring method for a joining operation of a joining element at a speed of at least 5 m/s, in particular placing a bolt at least 10 m/s into at least one component with the aid of a placing device which has the following features: A plunger for placing the joining element, a buffer which limits a maximum deflection of the plunger in the joining direction, and a distance measurement with which the deflection of the plunger can be detected, wherein the process monitoring comprises the following steps: Detecting the travel of the plunger during the joining operation as a function of time in the form of a distance-time curve, detecting a placement of the plunger on the buffer, evaluating the distance-time curve such that, in the presence of at least one maximum followed by at least one minimum in the distance-time curve and without the plunger contacting the buffer, a joint connection is judged to be OK.

Two plates, corresponding to the diameter of a length of riveting material being used, act as gauges and are placed separately on the top and bottom of at least one components to be made into a jewelry item. The length of material, such as a wire or tubing, is passed through holes in all the components, and the holes of the plates. This allows the jewelry maker to cut the length of material flush with the exposed surface of the plate on the top of the stack. This automatically measures the optimal length of material needed to span the combined thickness of all the components to be riveted together, while providing the desired length exposed at the top and bottom of the stacked pieces, to fashion a properly formed and secure flattened rivet head on each end of the length of material.