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公开(公告)号：US20250041974A1
公开(公告)日：2025-02-06
申请号：US18923740
申请日：2024-10-23
Applicant: TRUMPF Laser- und Systemtechnik GmbH
Inventor： Myriam Kaiser , Daniel Flamm , Jonas Kleiner , Christian Schmitt , Adam Hess , Bernd Uwe Sander
IPC: B23K26/362 , B23K26/0622 , B23K26/067 , B23K26/38 , B23K103/00
Abstract: A method for severing a workpiece having a transparent material includes providing multiple focus elements using an input laser beam, applying the multiple focus elements to the material, thereby forming material modifications in the material along a predetermined processing line, and severing the material along the processing line by an etching process using a wet chemical solution. A temperature of the wet chemical solution during the etching process is at least 100° C. and/or at most 150° C.
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公开(公告)号：US12097561B2
公开(公告)日：2024-09-24
申请号：US17314118
申请日：2021-05-07
Applicant: TRUMPF Laser-und Systemtechnik GmbH
Inventor： Philipp Wagenblast , Markus Pieger , Frederik Schaal , Matthias Allenberg-Rabe , Bjoern Ullmann , Valentin Blickle , Marc Gronle
CPC classification number: B22F12/90 , B22F10/37 , B33Y10/00 , B33Y30/00 , B33Y50/02 , G06T7/0008 , B22F10/28 , G06T2207/30136
Abstract: A method for operating a powder bed-based manufacturing device for additive manufacturing of a component from a powder material includes taking at least one optical recording of a working powder layer of the powder material on a construction location of the manufacturing device, locally evaluating the at least one optical recording, and examining the working powder layer for local coating errors using the evaluation of the at least one optical recording.
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公开(公告)号：US20240300049A1
公开(公告)日：2024-09-12
申请号：US18667141
申请日：2024-05-17
Applicant: TRUMPF Laser- und Systemtechnik GmbH
Inventor： Bjoern Sautter , Nicolai Speker , Alejandro Zamorano Reichold , Andreas Scholz , Tim Hesse
CPC classification number: B23K26/0626 , B22F12/41 , B22F12/44 , B23K26/0648 , B23K26/342 , B33Y10/00 , B33Y30/00
Abstract: A laser build-up welding method includes directing a powdered material and a laser beam onto a workpiece surface of a workpiece at an angle to one another. The powdered material is at least partially heated in an interaction zone with the laser beam above the workpiece surface and is welded onto the workpiece surface along a predefined contour, the laser beam has a wavelength that ranges between 0.4 μm and 1.1 μm. The laser beam within the interaction zone has an intensity in its border region that is greater than an intensity in the core region of the laser beam, so that the powdered material is subjected to the greater intensity of the border region when entering the interaction zone.
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公开(公告)号：US12032183B2
公开(公告)日：2024-07-09
申请号：US17500962
申请日：2021-10-14
Applicant: TRUMPF Laser- und Systemtechnik GmbH
Inventor： Malte Kumkar , Stefan Doerr , Daniel Flamm
CPC classification number: G02B5/1814 , B23K26/0652 , G02B5/20 , G02B27/0944 , G02B27/0988
Abstract: A spatial frequency filter device is for use with a laser beam. The device includes: a neutral region, which is configured to transmit or reflect the laser beam; and a deflecting region, which radially adjoins the neutral region and is configured to deflect beam components of the laser beam from a beam axis of the laser beam. The deflecting region has a constant portion, in which a deflecting effect on the beam components of the laser beam for each location in the constant portion is configured to be independent of a distance of a location from the neutral region. the deflecting region has a variation portion, in which the deflecting effect on the beam components of the laser beam is configured to vary, dependent on a distance from the neutral region.
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95.发明授权公开(公告)号：US12017303B2
公开(公告)日：2024-06-25
申请号：US17945501
申请日：2022-09-15
Applicant: TRUMPF Laser- und Systemtechnik GmbH
Inventor： Nicolai Speker , Johannes Seebach , Olga Kramlich , Artur Schellenberg
CPC classification number: B23K26/38 , B23K26/03 , B23K26/0342 , B23K26/1462 , B23K26/1476
Abstract: A laser cutting nozzle for a laser machining unit is described, the nozzle including a passage for the laser beam and cutting gas. The passage extends between a nozzle inlet and a nozzle mouth along a passage longitudinal axis. The passage comprises a convergence portion and a divergence portion. In the entire divergence portion, the wall of the passage forms an angle of inclination relative to the passage longitudinal axis of at most 5°. In addition, the length of the divergence portion is less than 5 times the diameter of the constriction.
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Patent Agency Ranking
公开(公告)号：US20240173797A1
公开(公告)日：2024-05-30
申请号：US18393748
申请日：2023-12-22
Applicant: TRUMPF Laser- und Systemtechnik GmbH
Inventor： Philipp Scheible , Patrick Haug
IPC: B23K26/067 , B23K26/03 , B23K26/24 , B23K31/12 , B23K103/10
CPC classification number: B23K26/0676 , B23K26/032 , B23K26/24 , B23K31/125 , B23K2103/10
Abstract: A method for welding at least two aluminum-containing components includes subdividing an output laser beam into multiple partial beams directed onto the at least two components, so that multiple laser spots are generated on a surface of the at least two components, and traversing a welding contour with the multiple laser spots on the surface of the components. Centers of at least three laser spots of the multiple laser spots are arranged in a ring formation. The output laser beam is generated by a multifiber, so that each laser spot of the multiple laser spots on the surface of the components has a core portion and a ring portion. The welding contour is traversed at least partially a second time after the welding contour has been traversed a first time.
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公开(公告)号：US20240139867A1
公开(公告)日：2024-05-02
申请号：US18409840
申请日：2024-01-11
Applicant: TRUMPF Laser- und Systemtechnik GmbH
Inventor： Patrick Haug , Daniel Flamm
IPC: B23K26/06 , B23K26/073 , B23K26/08
CPC classification number: B23K26/0648 , B23K26/073 , B23K26/0876
Abstract: A welding optical unit includes a collimator for collimating a laser beam, a focusing device for focusing the laser beam toward a workpiece, an adjustable beam shaper configured to shape the laser beam. The beam shaper includes a beam subdivision assembly that includes a cylindrical lens pair comprising two cylindrical lenses with diametrically opposite focal lengths and mutually parallel optical planes. The two cylindrical lenses extend with a curve on at least one side with respect to a common refraction direction perpendicular to the optical planes, and extend translationally invariantly with respect to a common non-refraction direction parallel to the optical planes. The refraction direction and the non-refraction direction extend perpendicularly to the optical axis of the welding optical unit. The welding optical unit further includes a spot distance adjusting device configured to displace the two cylindrical lenses relative to one another with respect to the refraction direction.
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公开(公告)号：US20240123544A1
公开(公告)日：2024-04-18
申请号：US18393755
申请日：2023-12-22
Applicant: TRUMPF Laser- und Systemtechnik GmbH
Inventor： Philipp Scheible , Patrick Haug , Jan Wildermuth
IPC: B23K26/067 , B23K26/06 , B23K26/064 , B23K26/073 , B23K26/244 , B23K26/26
CPC classification number: B23K26/0676 , B23K26/0626 , B23K26/064 , B23K26/0734 , B23K26/244 , B23K26/26 , B23K2103/10
Abstract: A method for welding at least two aluminum-containing components is provided. The components have an aluminum content of at least 75% by weight. The method includes subdividing an output laser beam into multiple partial beams directed onto the components, so that multiple laser spots are generated on a surface of the components, and traversing a welding contour on the surface of the components with the multiple laser spots. Laser spot centers of at least three laser spots of the multiple laser spots are arranged in a ring formation. The output laser beam is generated by a multifiber, so that each laser spot of the multiple laser spots on the surface of the components has a core portion and a ring portion, with a mean power density in the core portion being higher than a mean power density in the ring portion.
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公开(公告)号：US20240082955A1
公开(公告)日：2024-03-14
申请号：US18518675
申请日：2023-11-24
Applicant: TRUMPF Laser- und Systemtechnik GmbH
Inventor： Bjoern Sautter , Benedikt Wessinger , Marco Opitz , Andreas Scholz , Nicolai Speker , Tim Hesse
IPC: B23K26/342 , B23K26/70 , B23K31/12
CPC classification number: B23K26/342 , B23K26/702 , B23K31/12 , B33Y10/00
Abstract: A method for coating a rotating surface region of a workpiece by laser build-up welding includes fusing a powdery coating material prior to impact on the workpiece in a laser beam that is directed at the surface region, capturing a spatially resolved intensity profile of thermal radiation emitted by the workpiece, comparing at least one property of the intensity profile with at least one predefined target value, and modifying at least one parameter of a coating procedure based on a result of the comparison.
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100.发明授权公开(公告)号：US11925999B2
公开(公告)日：2024-03-12
申请号：US16849002
申请日：2020-04-15
Applicant: TRUMPF Laser- und Systemtechnik GmbH
Inventor： Jan-Patrick Hermani , Steffen Kessler , Friedhelm Dorsch , Holger Braun
IPC: G01B9/02 , B23K26/04 , B23K26/06 , B23K26/062 , B23K26/067 , B23K26/70 , G01B9/02055 , G01B9/02091 , G02B27/28
CPC classification number: B23K26/043 , B23K26/062 , B23K26/0626 , B23K26/0643 , B23K26/0648 , B23K26/0665 , B23K26/067 , B23K26/705 , G01B9/02044 , G01B9/02067 , G01B9/02091 , G02B27/283
Abstract: A workpiece processing machine that includes: a beam emission head for providing a beam for processing the workpiece, an optical interferometer for splitting, redirecting, and detecting the beam, an adjustment element for changing a second portion of a power of the beam redirected from a retroreflector to a detector, and a control unit for actuating the adjustment element to control a ratio between a first power portion of the beam redirected from the workpiece to the detector and the second power portion of the beam redirected from the retroreflector to the detector to a target ratio.
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