Abstract: A method and device for making multiple connections between electrical conductors surrounded by external insulators in overlapping flexible cables by ultrasonic welding. Overlapping conductors to be connected are arranged on a surface of a carrier disposed between a sonotrode and an electrode, the sonotrode and electrode are sequentially aligned the with overlapping points to be welded, and the conductors are ultrasonically welded at each of the overlapping points. The carrier either includes the electrode at least in designated areas, or includes penetrations constructed and arranged to receive an electrode in designated areas.

Abstract: An apparatus for continuously bonding and/or welding material webs by means of ultrasound, having an ultrasonic horn configured as a rotating roller, an anvil radially opposite the rotating roller, an amplitude transformer set axially on the rotating roller, an ultrasonic converter attached to the amplitude transformer with an energy supply, where the length 1 of the rotating roller equals a ?/2 wave or a multiple thereof (1=x·?/2).

Abstract: A method for soldering or deforming a workpiece, according to which a sonotrode of supersonic welding device is placed on the workpiece to be machined and the oscillation amplitude of the sonotrode is modified. In order to optimize the soldering operation, the oscillation amplitude is reduced according to a pre-determined gradient during a predetermined time tx, a characteristic parameter of the workpiece is measured directly or indirectly after time tx, and the sonotrode transmits supersonic energy to the workpiece at a predefined constant or essentially constant amplitude during a period of time time ty, according to the value of the measured parameter.

Abstract: An apparatus for continuously bonding and/or welding material webs by means of ultrasound, having an ultrasonic horn configured as a rotating roller, an anvil radially opposite the rotating roller, an amplitude transformer set axially on the rotating roller, an ultrasonic converter attached to the amplitude transformer with an energy supply, where the length l of the rotating roller equals a ?/2 wave or a multiple thereof (l=x·?/2).

Abstract: A device (10) for welding thin-walled work pieces (52) such as e.g. food containers of foil, fibrous web or foil-fibrous web composites using ultrasound has at least two components, i.e. a sonotrode (12) and a counter tool (14) for the sonotrode (12). One component (12) has a working region (16) which faces a working region (18) of the other component (14). The working region (18) of one component (14) comprises at least one projection (41) and the working region (16) of the other component (12) comprises at least one recess (46) into which the projection (41) can engage during the welding process. In this manner the work piece is securely held without slippage.

Abstract: A device (10) for welding thin-walled work pieces (52) such as e.g. food containers of foil, fibrous web or foil-fibrous web composites using ultrasound has at least two components, i.e. a sonotrode (12) and a counter tool (14) for the sonotrode (12). One component (12) has a working region (16) which faces a working region (18) of the other component (14). The working region (18) of one component (14) comprises at least one projection (41) and the working region (16) of the other component (12) comprises at least one recess (46) into which the projection (41) can engage during the welding process. In this manner the work piece is securely held without slippage.

Abstract: In testing a method for non-destructive testing of a welded assembly which includes a plurality of strands of electrical conductors which are joined together into a bundle by ultrasonic welding, a defined testing force is introduced into two or more shell surface segments of the welded assembly in directions oriented substantially towards each other or substantially to a comon intersection. For carrying out the testing method, a testing device and a welding machine which constitute such a testing device are provided.

Abstract: In an apparatus for machining a material web by means of a sonotrode, the pressure force of the sonotrode is determined and is used as a control signal for the advance of the sonotrode, as a result of which the nip height is set.

Abstract: The invention relates to a device for connecting metallic materials, in particular electrical conductors such as flexible cables, by means of a transducer (10) which generates ultrasonic oscillations and contains a sonotrode (16) with a sonotrode head (14) as well as a converter (12). In order to be able to embody the transducer compactly, it is provided that the transducer alone is seated in the first oscillation node remote from the sonotrode head.

Abstract: The invention relates to a process for welding electric conductors employing ultrasound following compaction. The process comprises compaction of the conductors in a compaction area by adjusting height and width up to a preset contact force and ultrasonically welding according to predetermined, stored parameters.

Abstract: The invention relates to a device for compacting and then welding electric conductors, especially for making through or terminal connections of flexes by means of ultrasound in a compression chamber adapted to the conductor and adjustable for height and width, in which the conductors to be welded are first compacted and then welded. The compression chamber is adjustable to a predetermined height-width ratio regardless of the cross section of the conductors to be welded.

Abstract: A device is described for welding the ends of electrical conductors, especially strand ends, by means of ultrasonics which comprises a sonotrode, provided with a plurality of different projections, and an anvil, associated with the sonotrode, which anvil is provided with a plurality of different or like recesses which, together with the sonotrode projections, constitute compaction spaces for the strand ends. The anvil is disposed with its longitudinal axis coaxially with the longitudinal axis of the sonotrode, and the cross-sections of the compaction spaces can be simultaneously varied by rotation of the anvil relative to the sonotrode about the common longitudinal axis, so that a plurality of strand ends can be simultaneously welded by only one anvil. Several alternatives for the rotational drive of the anvil are also described.

Abstract: An apparatus for joining of two electric conductors, preferably strands or the like, with an easy adaptation to different conductor sizes without having to cover the conductors to be joined with a sleeve. The apparatus comprises a sonotrode (58) generating ultrasonic oscillations, as well as at least one serving as an anvil (60, 62), where the sonotrode on its circumferential surface has at least one recess (68, 70 76, 78) being adapted to conductors to be joined, which recess is starting fron a lateral face of the sonotrode along which an area (76, 78) of the anvil can be moved, said area having a projection (72, 74) adapted to the recess, and where in the position of sonotrode and anvil for joining the conductors, the recess and the coordinated projection are defining a hollow space representing a compression chamber, running parallel or almost parallel to the oscillation axis of the sonotrode and being open on its front faces for inserting the conductors.

Abstract: In order to compress electric conductors (22) like strands by means of ultrasonics and/or weld them together in a joining knot it is suggested that the sonotrode (10) of an ultrasonic welding device has a surface (18) preferably positioned centrally above or below the longitudinal axis of the sonotrode (14), which surface being coordinated with a surface (20) of an anvil (12) for the upper and lower bounding of a compression chamber (24) for the lodging of the conductors (22). The compression chamber (24) is laterally limited by cheeks of which at least one is movably designed.