Patents Assigned to Lasertechnik GmbH
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Patent number: 12377499Abstract: A method for producing a welded I-beam profile includes providing a first flat material as a first flange of the I-beam profile, providing a second flat material as a second flange of the I-beam profile, and providing a third flat material as a web of the I-beam profile. The method includes aligning and guiding the first flange between first flange guiding rollers, aligning and guiding the second flange between second flange guiding rollers, and aligning and guiding the web between web guiding rollers. The web is arranged between the flanges in a plane that is perpendicular to the flanges for forming the I-beam. The method includes connecting the first flange to a first longitudinal edge of the web by a first welding operation in a welding station, and connecting the second flange to a second longitudinal edge of the web by a second welding operation in the welding station.Type: GrantFiled: August 10, 2020Date of Patent: August 5, 2025Assignee: BAOSTEEL LASERTECHNIK GMBHInventor: Gerhard Alber
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Patent number: 12365055Abstract: A method is provided for transporting flat materials to be welded together, specifically a first flange and/or a second flange and a web for producing a beam through a welding station. The flat materials are aligned and guided by rollers. A slide is arranged upstream of the welding station in the run-through direction and a gripper is arranged downstream of the welding station. The slide introduces the flat materials into the welding station and moves them as far as a first position by means of a pushing movement at an advancement speed. The gripper grips the flat materials at the first position, and pulls the flat materials out of the welding station at the pulling speed and moves them as far as a second position by means of a pulling movement. The slide is arranged upstream of the welding station and the gripper is arranged downstream of the welding station.Type: GrantFiled: August 10, 2020Date of Patent: July 22, 2025Assignee: Baosteel Lasertechnik GmbHInventor: Gerhard Alber
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Patent number: 12348005Abstract: The invention relates to a laser diode assembly for producing single-mode, tunable laser radiation. The laser diode assembly comprises a laser diode (4) and an external resonator (10), which is coupled thereto and comprises a resonator mirror (12) and a wavelength-selective optical reflective element (14) having a diffractive surface. The resonator mirror is mounted for rotation about a pivot axis (16) and can be selectively rotated about the pivot axis by means of a deflecting device.Type: GrantFiled: May 23, 2019Date of Patent: July 1, 2025Assignee: Sacher Lasertechnik GmbHInventor: Joachim Sacher
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Patent number: 11999017Abstract: The invention relates to a method for conducting and monitoring a machining process of a workpiece (10), in particular a welding process for joining the workpiece (10) to a further workpiece (10), by means of a high-energy machining beam (14), wherein the method comprises the following steps: generating a high-energy machining beam (14); projecting and/or focusing the machining beam (14) onto the workpiece (10), wherein, in accordance with a machining control signal, different machining regions of the workpiece (10) are machined; generating a measurement beam (16) by means of an optical coherence tomograph (18), wherein the measurement beam (16) is able to be coupled into the machining beam (14); determining measurement points (20) during the machining process by means of the optical coherence tomograph (18) using the measurement beam (16), in accordance with a measurement control signal; obtaining at least one external signal which is based on a measured variable and which is independent of a processing of tType: GrantFiled: January 29, 2021Date of Patent: June 4, 2024Assignee: Lessmüller Lasertechnik GmbHInventors: Eckhard Lessmueller, Christian Truckenbrodt, Maximilian Schmidt
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Publication number: 20230398582Abstract: The invention relates to methods for removing dirt deposits on at least one geometric structure of at least one body, said geometric structure being produced by means of microtechnology and/or nanotechnology, wherein the dirt deposits are dirt deposits resulting from an ablation or evaporation of material during creation of the geometric structure; and uses of an ultra-short pulsed laser with pulses in burst mode. The methods for removing dirt deposits and the uses of an ultra-short pulsed laser with pulses in the burst mode are characterized more particularly in that the resulting dirt deposits are easy to remove. Ultra-short pulsed laser irradiation is applied from a laser onto the geometric structure with pulses in the burst mode to remove the dirt deposits.Type: ApplicationFiled: November 11, 2021Publication date: December 14, 2023Applicant: ACSYS LASERTECHNIK GMBHInventors: Steffen WEISSMANTEL, Peter LICKSCHAT, Daniel METZNER
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Publication number: 20230384083Abstract: A method, measuring device, machining system and computer program product are provided for determining a corrected height signal from measurement data obtained with optical coherence tomography. The measurement data comprises an object signal and a background signal superimposed on the object signal, the object signal and the background signal being subject to different dispersion.Type: ApplicationFiled: May 24, 2023Publication date: November 30, 2023Applicant: Lessmüller Lasertechnik GmbHInventors: Eckhard Lessmüller, Christian Truckenbrodt
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Patent number: 11590653Abstract: The invention relates to a method for orientating two workpieces in order to form a joining connection, wherein in a longitudinal orientation step the first workpiece is orientated relative to the second workpiece) along at least one of the workpiece edges by linear movement of at least one of the grippers relative to the other gripper and wherein the longitudinal orientation step is carried out during the transport of the workpieces from the provision station to the processing station. Furthermore, the invention relates to a manipulator which comprises a first gripper and a second gripper.Type: GrantFiled: November 25, 2019Date of Patent: February 28, 2023Assignee: Baosteel Lasertechnik GmbHInventor: Gerhard Alber
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Publication number: 20230001511Abstract: The present invention relates to a method for butt welding at least two metal sheets, namely a first metal sheet and a second metal sheet, wherein, in particular, a tailored blank is produced from the metal sheets.Type: ApplicationFiled: September 7, 2022Publication date: January 5, 2023Applicant: BAOSTEEL LASERTECHNIK GMBHInventors: Gerhard ALBER, Gerhard BRAUCHLE, Martin RETZBACH
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Patent number: 11173536Abstract: The invention relates to a method for controlling a cyclically operating joining device, in particular a welding station, for joining a plurality of workpieces to a circuit board, wherein the joining device comprises at least one first transport device for a first workpiece in a first transport segment, and a second transport device for a second workpiece in a second transport segment, and the transport devices are controlled, independently of each other, by at least one control variable to configure an offset between head ends and/or rear ends of the workpieces prior to joining, wherein the control variable is associated with at least one transport segment of one of the transport devices.Type: GrantFiled: June 10, 2019Date of Patent: November 16, 2021Assignee: Baosteel Lasertechnik GmbHInventor: Gerhard Alber
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Patent number: 11103952Abstract: A measuring device for monitoring a laser welding process that is connectable to a machining device for machining a workpiece by a high-energy processing beam that is displaceable on the workpiece along a main machining path that corresponds to a contour of a closed geometric figure. The measuring device includes an optical coherence tomography unit having a measuring beam source for generating an optical measuring beam that is displaceable on the workpiece by at least one movable deflection unit. The optical measuring beam is displaceable on the workpiece along a first discrete measuring line, along a second discrete measuring line, and along a third discrete measuring line, in each case transversely with respect to the main machining path and intersecting same. The measuring device is configured for determining characteristic features of the geometric figure represented by the main machining path, according to the collected measuring data.Type: GrantFiled: October 4, 2018Date of Patent: August 31, 2021Assignee: LESSMUELLER LASERTECHNIK GMBHInventors: Eckhard Lessmueller, Christian Truckenbrodt
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Publication number: 20210237208Abstract: The invention relates to a method for conducting and monitoring a machining process of a workpiece (10), in particular a welding process for joining the workpiece (10) to a further workpiece (10), by means of a high-energy machining beam (14), wherein the method comprises the following steps: generating a high-energy machining beam (14); projecting and/or focusing the machining beam (14) onto the workpiece (10), wherein, in accordance with a machining control signal, different machining regions of the workpiece (10) are machined; generating a measurement beam (16) by means of an optical coherence tomograph (18), wherein the measurement beam (16) is able to be coupled into the machining beam (14); determining measurement points (20) during the machining process by means of the optical coherence tomograph (18) using the measurement beam (16), in accordance with a measurement control signal; obtaining at least one external signal which is based on a measured variable and which is independent of a processing of tType: ApplicationFiled: January 29, 2021Publication date: August 5, 2021Applicant: Lessmüller Lasertechnik GmbHInventors: Eckhard Lessmueller, Christian Truckenbrodt, Maximilian Schmidt
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Patent number: 10906133Abstract: A method for removing a coating of a surface of a wheel. The wheel is provided with screw channels and with a centrally positioned hub opening. Each of the screw channels and the central opening is delimited by an area from which the coating is to be removed. Each of the areas extends annularly around one of the screw channels or around the hub opening. The method is implemented using a laser beam generated by a laser source. The method comprises the steps of positioning an extraction opening directly beneath a center of one of the screw channels or the central opening surrounded by the area, moving the laser beam over the area without masking the area (7) from which the coating is to be removed, and extracting gases and particles produced during the step of removing the coating directly through one of the screw channels or the central opening.Type: GrantFiled: November 21, 2017Date of Patent: February 2, 2021Assignee: SLCR-Lasertechnik GmbHInventor: Olav Schulz
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Patent number: 10850404Abstract: The present invention relates to a suction frame for conveying flat workpieces (e.g. circuit boards), a manipulator for equipping the suction frame, and a system for handling flat workpieces, e.g. circuit boards. A method for adjusting a suction frame is also claimed. Overall, the present invention allows suction frames to be equipped in a fully automatic, freely programmable manner for the production of different components within a production line.Type: GrantFiled: April 10, 2018Date of Patent: December 1, 2020Assignee: WISCO LASERTECHNIK GMBHInventor: Gerhard Alber
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Publication number: 20200171599Abstract: A welding method and device for joining first and second workpieces using a high-energy machining beam. The method comprising inserting the first workpiece into a workpiece holder; positioning the second workpiece on a top side of the first workpiece at a target position for joining the workpieces; providing a high-energy machining beam, and focusing the machining beam on a current machining area; generating a measuring beam in an optical coherent tomograph, the measuring beam being coupleable into the machining beam; carrying out a process measurement by the measuring beam in the current machining area during machining of the workpieces; carrying out a control measurement by the measuring beam on at least one of the workpieces; and determining a distance between the first and second workpieces for detecting a gap between the workpieces, based on the result of the control measurement.Type: ApplicationFiled: December 4, 2019Publication date: June 4, 2020Applicant: Lessmüller Lasertechnik GmbHInventors: Eckhard Lessmueller, Christian Truckenbrodt, Alexander Denkl, Richard Steinbrecht
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Publication number: 20200156250Abstract: The invention relates to a method for orientating two workpieces in order to form a joining connection, wherein in a longitudinal orientation step the first workpiece is orientated relative to the second workpiece) along at least one of the workpiece edges by linear movement of at least one of the grippers relative to the other gripper and wherein the longitudinal orientation step is carried out during the transport of the workpieces from the provision station to the processing station. Furthermore, the invention relates to a manipulator which comprises a first gripper and a second gripper.Type: ApplicationFiled: November 25, 2019Publication date: May 21, 2020Applicant: BAOSTEEL LASERTECHNIK GMBHInventor: Gerhard ALBER
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Patent number: 10471551Abstract: 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.Type: GrantFiled: February 28, 2017Date of Patent: November 12, 2019Assignee: Wisco Lasertechnik GmbHInventor: Gerhard Alber
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Publication number: 20190329314Abstract: The invention relates to a method for controlling a cyclically operating joining device, in particular a welding station, for joining a plurality of workpieces to a circuit board, wherein the joining device comprises at least one first transport device for a first workpiece in a first transport segment, and a second transport device for a second workpiece in a second transport segment, and the transport devices are controlled, independently of each other, by at least one control variable to configure an offset between head ends and/or rear ends of the workpieces prior to joining, wherein the control variable is associated with at least one transport segment of one of the transport devices.Type: ApplicationFiled: June 10, 2019Publication date: October 31, 2019Applicant: BAOSTEEL LASERTECHNIK GMBHInventor: Gerhard ALBER
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Publication number: 20190232432Abstract: A method for the laser-based generation of a structure on a rake face of a cutting tool is disclosed, where at least one structure is formed by lines that are generated with a mutual spacing of at most 400 ?m with a laser beam at least in areas within a predetermined contour on at least one rake face of the cutting tool. A course of the lines forming the structure is oriented with respect to a profile of at least one cutting edge of the at least one rake face.Type: ApplicationFiled: January 30, 2019Publication date: August 1, 2019Applicant: ACSYS Lasertechnik GmbHInventors: CHRISTIAN KREISEL, MARCUS POLSTER, GERHARD KIMMEL
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Publication number: 20180222061Abstract: The present invention relates to a suction frame for conveying flat workpieces (e.g. circuit boards), a manipulator for equipping the suction frame, and a system for handling flat workpieces, e.g. circuit boards. A method for adjusting a suction frame is also claimed. Overall, the present invention allows suction frames to be equipped in a fully automatic, freely programmable manner for the production of different components within a production line.Type: ApplicationFiled: April 10, 2018Publication date: August 9, 2018Applicant: WISCO LASERTECHNIK GMBHInventor: Gerhard ALBER
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Patent number: 10016958Abstract: Method for manufacturing sheet metal blanks, in particular hybrid sheet metal blanks, a first sheet metal part being manufactured from a first sheet metal part material, a second sheet metal part being manufactured from a second sheet metal part material, an elongate connecting sheet metal strip being provided, and the connecting sheet metal strip being connected along a first longitudinal edge to the first sheet metal part by a thermal joint, and the connecting sheet metal strip being connected along a second longitudinal edge to the second sheet metal part by means of a preferably thermal joint, characterized in that, in a first process step, the connecting sheet metal strip is connected to the first sheet metal part and, in a second process step, the connecting sheet metal strip is connected to the second sheet metal part, the first and the second process steps taking place within a production line.Type: GrantFiled: January 26, 2016Date of Patent: July 10, 2018Assignee: Wisco Lasertechnik GmbHInventor: Gerhard Alber