Abstract: The present invention relates to a laser ablation and welding method for workpieces, in particular, metal sheets, and an automatic laser ablation and welding system, where an ablation procedure and a welding procedure are executed in an automation line.

Abstract: An apparatus for producing a tailored sheet metal strip, comprising at least one welding station, by means of which at least two sheet metal strips can be welded to one another along their longitudinal edges, and at least two strip feeding devices for respectively feeding one of the sheet metal strips into the at least one welding station, wherein the at least two strip feeding devices and the at least one welding station define a production line. A further-processing station for further processing is integrated in the production line downstream of the at least one welding station in the strip running direction and is equipped with tools for applying reinforcing material, to local points of at least one of the sheet metal strips which are connected to one another, for punching holes and/or for forming at least one of the sheet metal strips which are connected to one another.

Abstract: An apparatus for producing a tailored sheet metal strip, comprising at least one welding station, by means of which at least two sheet metal strips can be welded to one another along their longitudinal edges, and at least two strip feeding devices for respectively feeding one of the sheet metal strips into the at least one welding station, wherein the at least two strip feeding devices and the at least one welding station define a production line. A further-processing station for further processing is integrated in the production line downstream of the at least one welding station in the strip running direction and is equipped with tools for applying reinforcing material, to local points of at least one of the sheet metal strips which are connected to one another, for punching holes and/or for forming at least one of the sheet metal strips which are connected to one another.

Abstract: A method for controlling a tool, including the steps: providing a reference matrix including reference points and a centering matrix including centering points in a material processing plane; imaging the material processing plane through a camera as a camera image in a size of a camera image field; de-skewing the camera image of the material processing plane by aligning with the reference matrix; scaling a pixel size of the camera image through aligning with the reference matrix; centering the camera image through aligning with the centering points; projecting a processing contour onto the de-skewed and scaled camera image of a workpiece; and aligning the processing contour on the camera image of the work piece and starting the processing, wherein the processing of the work piece is performed though the tool along the processing contour.

Abstract: The invention relates to a method for producing tailored sheet-metal strips, in which at least one sheet-metal strip having a substantially planar surface is integrally connected along its longitudinal edge to at least one further web-shaped semifinished product made of metal, wherein the at least one further web-shaped semifinished product differs from the at least one sheet-metal strip in terms of at least one of its properties, and wherein the at least one sheet-metal strip and the at least one further web-shaped semifinished product are fed continuously to at least one joining station, characterized in that a web-shaped semifinished product having a three-dimensional structure, a hollow profile and/or a multiplicity of recesses and/or holes in succession along its longitudinal edge is used as the at least one further web-shaped semifinished product which is fed to the joining station. An apparatus for carrying out the method is furthermore claimed.

Abstract: An apparatus for producing a tailored sheet metal strip, comprising at least one welding station, by means of which at least two sheet metal strips can be welded to one another along their longitudinal edges, and at least two strip feeding devices for respectively feeding one of the sheet metal strips into the at least one welding station, wherein the at least two strip feeding devices and the at least one welding station define a production line. A further-processing station for further processing is integrated in the production line downstream of the at least one welding station in the strip running direction and is equipped with tools for applying reinforcing material, to local points of at least one of the sheet metal strips which are connected to one another, for punching holes and/or for forming at least one of the sheet metal strips which are connected to one another.

Abstract: An optical plug connection for optical waveguides including a plug and a matching socket, and also a method for adjusting the plug connection. In the case of such a plug connection, the plug has at least one planar, smoothed contact area oriented with respect to a propagation direction of a light beam passing from or into the plug, for bearing on a corresponding planar, smoothed mating contact area of the socket that is oriented with respect to the propagation direction of the light beam.

Abstract: An apparatus usable with a laser resonator has a generally stationary base, a positioning slide carried on the guide and shiftable thereon in an adjustment direction, and two (or more) holders carried on the slide and each having a platform adapted to secure a respective diffraction grating. Each of the platforms can be shifted on the respective holder with at least two degrees of freedom relative to the slide. The positioning slide can also be shifted relative to the base for moving each of the gratings into a working position.

Abstract: A device for holding an essentially cylindrical work piece (22), in particular a jewelry ring, for machining with a laser beam (L) has at least one chuck (20) that is supported so that it is able to rotate around a rotation axis (18) and that is provided for centrally holding the work piece (22) by means of first clamping elements (30), which automatically fix the work piece (22) in position through the exertion of a spring force.

Abstract: A method for producing rough surface structures comprising the following step: running a laser beam along filling lines (1) over an area to be processed, wherein the filling line (1) is broken down into particular laser dots (2) with a distance a, and wherein the laser dots (2) are moved in a X direction and in a Y direction in a plane with a random factor b relative to the filling line (1) so that they form a cloud of dots.

Abstract: A method and to a corresponding device for continuously welding strips or sheets, guided into abutment, at their abutting edges, comprising at least two welding heads, and tension rollers which are arranged in pairs on both sides of the strips or sheets to be welded perpendicularly to the running direction thereof and which form a gap in the region of a joint of the strips or sheets, through which gap a first energy beam emanating from a first of the at least two welding heads impacts the strip edges or longitudinal edges to be welded, a second of the at least two welding heads being arranged on the opposite side of the strips or sheets a second energy beam of said second welding head impacting in this location the strip edges or longitudinal edges to be welded, characterised in that wherein the at least two welding heads are arranged offset relative to one another in the running direction of the strips or sheets so that the impact points of the energy beams on the strip edges or longitudinal edges to be weld

Abstract: A device and a method for guiding bands to be joined to one another along their longitudinal edges, in which bands are guided via deflection rollers to a joining position. The device according to the invention provides that the deflection roller located closer to the joining position is configured as a conical roller, the deflection roller arranged upstream of this conical roller in the running direction of the band being also configured as a conical roller or as a deflection roller having a cylindrical lateral surface, and the conical roller last mentioned tapering in the direction of the other longitudinal edge of the band, or the rotational axis of the deflection roller having a cylindrical lateral surface spatially approaching the rotational axis of the conical roller arranged downstream in the running direction of the band on the edge side of the band opposing the longitudinal edge to be joined.

Abstract: The invention relates to a device and a method for producing tailored blanks. The device comprises a workpiece carrier for the sheets (15a, 15b) that are to be joined into tailored blanks in the butt joint by welding. The invention further comprises a plurality of laser welding heads (14a, 14b), which are arranged one behind the other over the workpiece carrier and along the butt joint to be welded and can be moved with an advancing device (11a, 11b), wherein the heads can be aligned with the joint using positioning means, wherein at least two combined laser cutting and welding heads (14a, 14b) are carried by at least two independent arms (13a, 13b), each associated with independent units (11a, 11b) of the advancing device, and wherein the positioning means can adjust the distances of the units (11a, 11b) in the direction of the butt joint and also the distances of the cutting and welding heads (14a, 14b) in the transversal direction to the butt joint.

Abstract: An apparatus for combining individual light beams to form a coaxial light bundle. The apparatus has a plurality of coupling-in positions, the number of which corresponds to the number of light beams, and also at least one coupling-out position. It is suitable for generating a collimated beam bundle as a multicolor source for use in digital image generation. The apparatus includes an apparatus base body with the coupling-in positions for the light beams and with a coupling-out position for the light bundle and adjusting devices for coaxially orienting the individual light beams relative to the beam direction of the light bundle. The coaxial light bundle can optionally emerge as free beam at the coupling-out position or into an optical waveguide via connecting elements.

Abstract: An apparatus for combining individual light beams to form a coaxial light bundle. The apparatus has a plurality of coupling-in positions, the number of which corresponds to the number of light beams, and also at least one coupling-out position. It is suitable for generating a collimated beam bundle as a multicolour source for use in digital image generation. The apparatus includes an apparatus base body with the coupling-in positions for the light beams and with a coupling-out position for the light bundle and adjusting devices for coaxially orienting the individual light beams relative to the beam direction of the light bundle. The coaxial light bundle can optionally emerge as free beam at the coupling-out position or into an optical waveguide via connecting elements.

Abstract: An optical plug connection for optical waveguides including a plug and a matching socket, and also a method for adjusting the plug connection. In the case of such a plug connection, the plug has at least one planar, smoothed contact area oriented with respect to a propagation direction of a light beam passing from or into the plug, for bearing on a corresponding planar, smoothed mating contact area of the socket that is oriented with respect to the propagation direction of the light beam.

Abstract: A device for injecting light into an optical wave guide orients a focused light beam using a manipulator. The manipulator includes an adjusting plate with an outer part, an inner part, and two spring arrangements between the outer part and the inner part that are independently adjustable along two co-ordinate axes, each spring arrangement having a parallel spring arrangement guiding parallel to a certain direction, and a preliminary spring mounted in series, a fixing screw, and an axially elastic fixing disk. The inner part can be moved in the X direction and in the Y direction, and the fixing disk can be pressed into the adjusting plate by the fixing screw screwed into the housing part, in the direction of the passage of the beam, such that the adjusted position of the inner part is fixed.

Abstract: A method for singulating a group of semiconductor packages containing a plastic molded body. The singulation of the semiconductor packages is effected along a predetermined separation area, wherein, in the predetermined separation area, a metallic layer extending over at least a partial section of the predetermined separation area has to be cut through in addition to a plastic layer formed of a material of the molded body. The method includes the steps of: making a groove into the predetermined separation area of the semiconductor packages by laser engraving, wherein at least a part of the metallic layer extending in the predetermined singulation area is removed, and subsequent separation of the semiconductor packages by mechanical sawing cut along the predetermined separation area.

Abstract: In a bearing support (10) for a laser resonator, adjacent support sections (11a, 11b) are directly and undetachably connected to each other by an articulated deflectable joint (12). An additional vertical safety on the bearing support is no longer necessary since the two support sections (11a, 11b) are already held together in a vertically secure manner by the articulated joint (12).

Abstract: In a laser processing machine for processing workpieces using a laser beam (2), a telescope (1) for widening the laser beam (2) comprises an ellipsoidal mirror (3) and a paraboloidal mirror (4) whose axes of rotation (6) extend parallel, in particular collinear, to each other. This orientation permits precise production of the reflecting surfaces of the two mirrors through one single clamping (e.g. through diamond lathe) such that later adjustment is not required.