A method and installation for joining a cover layer to an object in a continuous process. Joining is effected with the aid of a joining material having thermoplastic properties, wherein the joining material is arranged between the cover layer and the object and is liquefied using ultrasonic vibration energy. Before application of the ultrasonic vibration energy, the joining material is preheated in a contactless manner with the aid of electromagnetic induction in the region of the glass transition temperature of the joining material or above this glass transition temperature. The object is in particular a chip board and the cover layer an edge strip to be joined to an edge of the chip board.

A simultaneous laser welding apparatus of a vehicle light comprising a placement support for a container body and a lenticular body of a vehicle light welded together at reciprocal perimeter profiles, a plurality of laser sources, a plurality of optical fibres associated with the laser sources at input ends for transmitting the light beams, a fibre-holder support device for blocking output ends of the optical fibres in predetermined positions, spaced apart by a pitch, a light guide provided with at least one seat which receives the light beams coming from the output ends of the optical fibres, to a light output wall which sends the light beams towards the welding interface. A single optical fibre is associated with each laser source.

The invention relates to a method for welding a polyamide plastic and a poly(meth)acrylateparticularly a polymethyl methacrylateplastic using a primer, said primer containing at least one copolymer synthesised from at least one styrene or styrene derivative and at least one maleic anhydride or maleic anhydride derivative. The invention also relates to correspondingly welded products.

Described are methods for the manufacture of sporting goods, in particular a shoe, sporting goods manufactured by such methods, for example a shoe, as well as a device for performing such methods. The method for the manufacture of sporting goods, in particular a shoe, is provided, wherein the sporting goods has a first component with a first connection surface and a second component with a second connection surface. The method includes activating at least one portion of the first connection surface by providing heat energy without contact, and connecting the first component with the second component by joining the first connection surface and the second connection surface.

A narrow waveguide homogenizes laser light traveling from a laser light source of a laser bank through a plurality of laser delivery bundles that include at least a fiber optic bundle leg to weld a plurality of work pieces along a weld line that is narrower than the width of the fiber optic bundle leg. The narrow waveguide has a portion associated with each fiber optic bundle leg that is narrower than the fiber optic bundle leg with which that portion of the waveguide is associated. A reflective bounce plane diverts laser light of the fiber optic bundle leg that does not travel through the narrow waveguide.

A vehicle light having a container body having a first perimetral profile, a lenticular body, having a second perimetral profile, wherein the first and second perimetral profile of the container body and the lenticular body are at least partially counter-shaped to each other in order to interface at a welding interface of an abutment edge of the lenticular body. The container body delimits a containment seat that houses a light source and the lenticular body is applied to the container body so as to close the containment seat. A redirection surface is adapted to receive laser beams, to concentrate and reflect them towards the welding interface. The redirection surface is arranged on an inner face of the abutment edge, the inner face facing the containment seat and incident with the welding interface. A method of making the vehicle light is also disclosed.

Described are methods for the manufacture of sporting goods, in particular a shoe, sporting goods manufactured by such methods, for example a shoe, as well as a device for performing such methods. The method for the manufacture of sporting goods, in particular a shoe, is provided, wherein the sporting goods has a first component with a first connection surface and a second component with a second connection surface. The method includes activating at least one portion of the first connection surface by providing heat energy without contact, and connecting the first component with the second component by joining the first connection surface and the second connection surface.

A battery assembly, such as a bipolar battery assembly, generally includes a first casing portion comprising an optically-absorbing region defining a first feature, and a second casing portion comprising an optically-transmissive region, the second casing portion defining a second feature, the second feature sized and shaped to mate with the first feature. The first and second features form a hermetic seal comprising a welded joint. Fabrication of such an assembly can include physically mating the first casing portion with the second casing portion, and irradiating, such as using a laser, the optically-absorbing region defining the first feature through the optically-transmissive region to form the welded joint. The first or second casing portions can include one or more casing segments that can support a battery plate, such as comprising a conductive substrate. A gasket or seal can be used such as to provide a further seal at or near a perimeter of the conductive substrate.

A rivet connection has a hollow rivet composed of plastics material and connects a first component to a second component. The first component has a first surface and the second component has a second and third surface. The first surface and the second surface bear on one another. The second component has a first opening between the second and the third surface. The hollow rivet has a tubular component having a lateral wall, a cavity, a first end and a second end. Part of the tubular component is disposed in the first opening of the second component. The second end of the tubular component protrudes beyond the second component. The lateral wall of the tubular component adjacent the first opening of the second component is heated and compressed and configures an outwardly bulging region. Part of the outwardly bulging region contacts the third surface of the second component.

Sensors incorporated within a waveguide detect a laser light output from at least a laser delivery optical fiber to provide in situ feedback of the laser light intensity detected by the sensor. The sensors may detect laser light directly from the laser delivery optical fiber or as reflected back from a plurality of work pieces during a weld cycle. In various aspects, the feedback provided from the sensors is used to control the laser light intensity or to alert an operator that the laser light intensity is below a predetermined parameter.