A joining material for laser welding, a laser welding method using the same, and a laser joined body using the laser welding method. The joining material includes a polymer matrix and a needle-shaped inorganic filler. The polymer matrix includes a polypropylene resin having a melt index of 80 g/10 min or more to 95 g/10 min or less as measured at a temperature of 230° C. and a load of 2.16 kg, and the needle-shaped inorganic filler has an aspect ratio of 10:1 to 20:1.

A system for joining at least two workpieces of thermoplastic material by laser transmission welding, the system comprising at least one device for generating laser radiation and an imaging optics having a first optical axis, wherein laser radiation emitted by the device for generating laser radiation is guided into a joining zone and wherein the imaging optics is configured for optical imaging from a joining plane in the joining zone to a detection plane of a radiation detecting device. According to an aspect, a deflection mirror is arranged at a coupling point on a second optical axis running parallel to the first optical axis for deflecting the laser radiation from an entrance axis enclosing a non-zero angle, preferably a right angle, with the second optical axis into a direction along the second optical axis.

The invention relates to a device comprising a first fixing element, a further fixing element and a folded planar composite; wherein the first fixing element comprises a first fixing surface and the further fixing element comprises a further fixing surface; wherein the folded planar composite is at least partially fixed between the first fixing surface and the further fixing surface; wherein the folded planar composite comprises a first composite region; wherein the first composite region comprises a first layer sequence comprising a first composite layer comprising a first carrier layer, a second composite layer comprising a second carrier layer, a third composite layer comprising a third carrier layer and a fourth composite layer comprising a fourth carrier layer; wherein in the first composite region the second composite layer is joined to the third composite layer and the third composite layer is joined to the fourth composite layer; wherein in the first composite region the third carrier layer is characterised by a smaller layer thickness than in each case one selected from the group consisting of the first carrier layer, the second carrier layer and the fourth carrier layer or a combination of at least two of these; wherein the first fixing surface or the further fixing surface or both comprises a recess comprising a first recess region; wherein the first composite region is located at least partially between the first recess region and the first fixing surface or the further fixing surface.

Additive manufacturing systems and methods used for creating 3D parts from continuous-fiber reinforced composites such as, e.g., carbon-fiber or glass-fiber pre-impregnated tape are provided. The systems and methods lay tape in successive layers and cut each layer according to a 2D slice of a 3D CAD file. During the placement of each piece of tape, a laser welds the tape to other tape, eliminating the need for post-processing of each layer. By utilizing tape instead of large fiber-reinforced sheets, the systems and methods described herein reduce waste compared to known manufacturing techniques.

Provided is a cladding composition which contains metal powder, a binder, and an organic solvent in a case of bonding a metal base material and a resin member to each other. Further, provided is a method for producing a metal/resin bonded member, including a step of coating at least a portion of a metal base material with the cladding composition; a step of irradiating the coated portion of the metal base material which has been coated with the cladding composition, with a laser; a step of disposing the resin member on the laser irradiation portion of the metal base material; and a step of heating an interface between the laser irradiation portion and the resin member so that the metal base material and the resin member are bonded to each other.

Disclosed are a method for producing a laminate including a step of laminating a resin impregnated fiber reinforced composition layer on a metal member, wherein the method includes a step of forming a resin coating on the metal member and a step of laminating a resin impregnated fiber reinforced composition layer containing a resin impregnated fiber reinforced composition containing (I) 20 to 80% by mass of a polymer having a melting point and/or a glass transition temperature of 50 to 300° C., and (C) 20 to 80% by mass of a reinforcing fiber
(provided that the sum of the component (I) and the component (C) is taken as 100% by mass) via the above resin coating; and a laminate obtained by the method.

The present invention relates to devices with which, for example, narrow surfaces of preferably plate-like workpieces can be provided with a coating material. The device includes a laser for outputting a laser beam to a laser beam emitter, wherein the laser beam is directed onto the coating material or onto the workpiece in such a manner that the laser beam forms a plane of reference with solder on the surface of the coating material or the workpiece.

A pull-on garment (1) includes an outer cover (3) forming an outer surface of the garment, both lateral side edge portions of the outer cover in a front body portion F and both lateral side edge portions of the outer cover in a back body portion R being joined to each other to form a pair of side seals (4), a waist opening (8), and a pair of leg openings (9). Each of the side seals (4) includes a seal edge portion (41) where the edge portion (3F) of the outer cover (3) in the front body portion F and the edge portion of the outer cover (3) in the back body portion R are bonded to each other by a continuous linear fusion-bonded portion (40) extending in a longitudinal direction of the side seal (4). In a cross-section orthogonal to a direction in which the side seal (4) extends, the fusion-bonded portion (40) includes a narrow section (4F) which is formed at a middle portion thereof in the thickness direction Q and of which a width W along the inner-to-outer direction P is small. The narrow section (4F) includes broad sections (4A, 4B) which are provided on both sides of the narrow section (4F) in the thickness direction Q and of which the width W is larger than the width of the narrow section (4F).

A system for manufacturing tamper evident packaging, for example a bag with a tamper evident seal, includes a noncontact sealing device, a manufacturing conveyor, and in some implementations, a tensioning device and a closure device. The manufacturing conveyor conveys the bag to opposing pairs of in-feed belts of the non-contact sealing device, wherein the belts hold opposing sides of the bag together and a laser with an outlet positioned between a first pair of the belts spot welds the bag along a specified line to fuse the opposing sides of the bag together proximate an opening of the bag. In implementations including the tensioning device and the closure device, the tensioning device draws the opposing sides of the bag together prior to the bag entering the noncontact sealing device, and the closure device applies a removably coupleable closure to the bag after the bag exits the non-contact sealing device.

A system includes a first tubular member comprising a first polymer and a second tubular member comprising a second polymer. The first tubular member defines a lumen configured to receive at least a portion of the second tubular member therein to define a joint region. The system further includes a compression sleeve configured to receive at least a portion of the first tubular member at the joint region and an energy source comprising a fiber laser configured to deliver energy to the joint region to thermally weld the first tubular member to the second tubular member. In some examples, the energy includes a wavelength of radiation transmittable through the compression sleeve and the first tubular member, and absorbable by the first tubular member and the second tubular member.