The disclosure relates to a method for producing a welded assembly including a plurality of welded connections between first contact partners of a contact substrate and second contact partners of a placement unit. The contact partners are arranged in an overlapping position and a sonotrode is moved into a position overlapping with the second contact partner using a positioning device, is lowered onto the second contact partner in a welding contact position, and is subjected to ultrasonic vibrations to produce a welded connection. The sonotrode is positioned relative to the second contact partner with a camera and the sonotrode is positioned relative to the second contact partner based on a determination of a position deviation of a sonotrode imprint of a sonotrode working surface produced on a reference imprint carrier by the welding process.

The invention relates to an ultrasonic welding device comprising a sonotrode (14) transmitting ultrasonic vibrations and an anvil (15) disposed on an anvil carrier (17), the anvil (15) being disposed on the anvil carrier (17) in an exchangeable manner so that an mounting surface (21) of the anvil (15) rests against a support surface (22) of the anvil carrier (17) by means of a normal force exerted by a pretensioning device, the mounting surface (21) of the anvil (15) having a surface hardness greater than the surface hardness of the support surface (22) of the anvil carrier (17), the mounting surface (21) having a surface structure at least in the area of a partial surface, and the mounting surface (21) having a surface roughness of R.sub.z/R.sub.a≥2 at least in the area of the partial surface.

A method includes disposing a terminal pin on an electronic substrate with a base region of the terminal pin in contact with a circuit trace on an electronic substrate, and ultrasonically coupling the base region of the terminal pin to the circuit trace.

An electric power storage device includes at least one electric power storage cell having a first end provided with a first electrode, and a second end provided with a second electrode; a first electrode bus bar that is disposed on a side of the first end and is connected to the first electrode; and a second electrode bus bar that is disposed on a side of the second end and is connected to the second electrode. The first electrode bus bar is provided with a connection line connected to the first electrode. The first electrode bus bar and the second electrode bus bar are joined to each other by ultrasonic joining. A joint portion between the first electrode bus bar and the second electrode bus bar is disposed at a position that is closer to the second end than to the first end.

An ultrasonic welding apparatus joins metal pieces, such as wires, which are placed in a weldment zone where the metal pieces are subjected to pressure through a compressive height anvil and an adjustable width anvil, and intimate contact is made with a sonotrode of an ultrasonic stack. A first electric motor actuates movement of the height anvil to develop a compressive force for ultrasonic welding of the metal pieces. A second electric motor can position the width anvil before and during welding. A sensor, such as a load cell, measures the compressive force developed. The sensor directly can measure the load on the height anvil independent of the ultrasonic stack. A software algorithm can compensate for deflection of the load cell sensor and lost motion in the first electric motor actuating movement.

Method for forming a shield connection of a shielded cable with the steps of pushing a sleeve onto a shield of a cable, inserting the cable with the sleeve into a magnetic pulse welding coil, and energizing the magnetic pulse welding coil with a current pulse in such a way that the sleeve is joined to the shield with a material bond.

An electric cable includes a terminal, and a manufacture method thereof is to suppress shedding of wire strands from a core wire. The electric cable with terminal includes an end of an electric cable connected to the terminal. The electric cable includes a core wire that is a bundle of a plurality of wire strands. The terminal includes a connection portion in which the core wire is exposed at the end of the electric cable. The core wire is placed on the connection portion including a welded portion that is to be ultrasonic welded to the connection portion. The welded portion includes a high compression portion in which the core wire is compressed, and a low compression portion in which a position that is closer than the high compression portion to the end of the core wire is compressed at a compression lower than that of the high compression portion.

An electrical cable having at least one consolidated end may be made of a multi-stranded conductor or a plurality of conductive leaves. At least one end of the multi-stranded conductor or plurality of conductive leaves is ultrasonically welded together. The end of the multi-stranded conductor or plurality of conductive leaves ultrasonically welded together may further include a sleeve or cap substantially enclosing the end of the multi-stranded conductor or plurality of conductive leaves.

The invention relates to a device and to a method for producing a tested weld joint between two contact elements (11, 12), which are joined together in a welding plane S, comprising a compressing space for accommodating the contact elements (11, 12), said compressing space being delimited by a work surface of a sonotrode, which transmits ultrasonic oscillations, and a counter-surface (15) of a counter-electrode (16) in a first axial direction at two opposing sides and by delimiting surfaces of opposing delimiting elements in a second axial direction at two opposing sides, said device comprising a test head (27) next to the compressing space, and said test head being able to be transferred from a position outside of the compressing space to a position within the compressing space in such a manner that the test head (27) is disposed within the open compressing space in a test mode of the device for subjecting a contact element (12) of the previously produced weld joint to a shear force essentially oriented parallel to the welding plane S, and said test head (27) being disposed outside of the compressing space in a welding mode of the device for producing the weld joint.

The invention relates to an electrical element having at least one functional region and a contact surface, wherein a connecting element is arranged on the contact surface, wherein the connecting element comprises a stranded wire coated with sintered material, wherein the stranded wire is connected, in particular sintered, to the contact surface by a sintered material. Furthermore, the invention relates to a method for producing the electrical element according to the invention.