The present disclosure relates to methods by which a warped workpiece is reconfigured in a pre-determined manner to reduce a separation between the warped workpiece and a joining workpiece. The warped workpiece is reformed/reshaped, prior to joining, by softening material of the warped workpiece through application of a predetermined amount of energy at or near warping and using a directional force applied to a first surface of the warped workpiece, thus reducing a separation space at a joining interface of the warped workpiece and joining workpiece.

An apparatus for bonding separators in electrical devices the separators to each other so as to sandwich an electrode, includes a transmission unit configured to generate ultrasonic oscillations, an amplifier unit configured to amplify the generated oscillations, an abutting part configured to apply the amplified oscillations to the separators so as to bond the separators to each other, and separator conveyance units configured to convey the separators to a bonding position where the abutting part bonds the pair of separators to each other, the transmission unit, the amplifier unit, and the abutting part are laid out parallel to a direction in which the separators are conveyed.

An ultrasonic systems and methods for sealing complex interfaces or for metal forming. Complex interfaces, such as a Gable top, have multiple and a variety of layers across the interface, or an oval or round spout having a complex geometry. An example system includes two ultrasonic horns arranged opposite a gap between which the interface is provided. The frequency and phase of the ultrasonic energy are synchronized as the energy is applied simultaneously while the interface is pressed between a jaw and the energy is applied to both sides of the interface. Another example system includes two ultrasonic transducers synchronized in frequency and phase and used to vibrate a horn mechanically to facilitate a sealing or welding interface or to assist in a metal-forming process.

An ultrasonic welding system. The system includes an ultrasonic transducer assembly having a horn and a first transducer and a second transducer arranged to impart ultrasonic energy into the horn. The horn has a first part-interfacing surface and a second part-interfacing surface opposite the first part-interfacing surface. An actuator assembly is operatively coupled to the ultrasonic transducer assembly and configured to cause rotation of the horn. A controller is configured to: cause the actuator assembly to rotate the horn so that the first part-interfacing surface applies the ultrasonic energy to a first part along an entire length of the first part-interface surface while a first ultrasonic energy is applied through the horn via the first transducer to cause the first part-interfacing surface to vibrate back and forth along its entire length as the first ultrasonic energy is applied by the first transducer to the horn.

A method of fastening a second object to a fiber composite part including a structure of fibers embedded in a matrix material includes: providing the fiber composite part including an attachment surface, with a portion of the structure of fibers being exposed at the attachment surface; providing the second object; placing the second object relative to the fiber composite part, with a resin in a flowable state between the attachment surface and the connector; pressing the second object and the fiber composite part against each other and causing mechanical vibration to act on the second object or the fiber composite part or both, thereby causing the resin to infiltrate the exposed structure of fibers and activating the resin to cross-link; whereby the resin, after cross-linking, secures the second object to the fiber composite part.

The present invention concerns an ultrasonic welding installation comprising an ultrasonic vibration unit having a sonotrode and a converter, wherein the sonotrode and the converter are arranged in mutually adjacent relationship along a longitudinal axis and the ultrasonic vibration unit can be caused to resonate with an ultrasonic vibration in the direction of the longitudinal axis with a wavelength λ. To provide an ultrasonic welding installation which allows simple and fast highly precise adjustment of the sealing surfaces of the sonotrode relative to the anvil according to the invention there is proposed a support element for supporting a force applied to the sonotrode perpendicularly to the longitudinal axis, wherein the sonotrode and the support element have mutually corresponding support surfaces which at least when a force is applied to the sonotrode perpendicularly to the longitudinal axis come into contact with each other, wherein the support surfaces are of such a configuration that when they are in contact with each other they prevent a relative movement of the sonotrode with respect to the support element in the direction of the longitudinal axis and do not impede a rotation of the sonotrode about the longitudinal axis.

Provided is a bonding method capable of bonding with an inexpensive structure while avoiding an increase in the overall size of the device. The bonding method comprises: an arrangement step for locating a cylindrical body between two sheet-shaped members; a cylindrical body bonding step for applying an ultrasonic wave from the outer surface of a first sheet-shaped member through a horn part and applying heat from the outer surface of a second sheet-shaped member through an anvil part, in a state in which the cylindrical body is arranged between the two sheet-shaped members; and a shoulder part bonding step for directly bonding, through a pair of heating parts, the two sheet-shaped members to each other while the two sheet-shaped members are interposed between the pair of heating parts.

An ultrasonic welding system. The system includes an ultrasonic transducer assembly having a horn and a first transducer and a second transducer arranged to impart ultrasonic energy into the horn. The horn has a first part-interfacing surface and a second part-interfacing surface opposite the first part-interfacing surface. An actuator assembly is operatively coupled to the ultrasonic transducer assembly and configured to cause rotation of the horn. A controller is configured to: cause the actuator assembly to rotate the horn so that the first part-interfacing surface applies the ultrasonic energy to a first part along an entire length of the first part-interface surface while a first ultrasonic energy is applied through the horn via the first transducer to cause the first part-interfacing surface to vibrate back and forth along its entire length as the first ultrasonic energy is applied by the first transducer to the horn.

Described is a method for making single-use capsules for beverages including the steps of: providing an upper flange having at least one hole; providing a support having at least one seat for housing a rigid cup-shaped body; inserting a rigid cup-shaped body in said housing seat, said rigid cup-shaped body having an inner space and an open upper opening; providing a piece of filter material above the upper flange; actuating a first step of feeding, by means of a pushing element, a central portion of said piece of filter material towards said hole, up to an intermediate position; upon reaching said intermediate position of the pushing element, performing a main locking of said piece of filter material relative to said upper flange and making a main cut of the piece of filter material along a predetermined main closed cutting line, extending substantially circularly about said central portion, to define a filter for infusion of beverages.

A method of fastening a second object to a fiber composite part including a structure of fibers embedded in a matrix material includes: providing the fiber composite part including an attachment surface, with a portion of the structure of fibers being exposed at the attachment surface; providing the second object; placing the second object relative to the fiber composite part, with a resin in a flowable state between the attachment surface and the connector; pressing the second object and the fiber composite part against each other and causing mechanical vibration to act on the second object or the fiber composite part or both, thereby causing the resin to infiltrate the exposed structure of fibers and activating the resin to cross-link; whereby the resin, after cross-linking, secures the second object to the fiber composite part.