公开(公告)号：US10688722B2

公开(公告)日：2020-06-23

申请号：US16195810

申请日：2018-11-19

申请人： Velo3D, Inc.

发明人： Benyamin Buller ,  Tasso Lappas ,  Erel Milshtein ,  Rueben Joseph Mendelsberg ,  Kimon Symeonidis ,  Alan Rick Lappen

IPC分类号： B22F3/105 ,  B23K26/04 ,  B33Y10/00 ,  B23K26/08 ,  B29C64/307 ,  B29C64/214 ,  B29C64/188 ,  B29C64/357 ,  B29B17/00 ,  B29C64/153 ,  B29C64/40 ,  B29C64/393 ,  B33Y30/00 ,  B23K26/142 ,  B23K26/144 ,  B23K26/342 ,  B33Y70/00 ,  G05B19/4099 ,  B33Y40/00 ,  B23K37/06 ,  B23K26/14 ,  B23K26/70 ,  B29C64/386 ,  B29C64/35 ,  B33Y50/02 ,  B28B1/00 ,  B33Y80/00 ,  B29K105/00

摘要： The present disclosure various apparatuses, and systems for 3D printing. The present disclosure provides three-dimensional (3D) printing methods, apparatuses, software and systems for a step and repeat energy irradiation process; controlling material characteristics and/or deformation of the 3D object; reducing deformation in a printed 3D object; and planarizing a material bed.

公开(公告)号：US20200171600A1

公开(公告)日：2020-06-04

申请号：US16698842

申请日：2019-11-27

申请人： Samsung Display Co., Ltd.

发明人： Dong-Sung LEE ,  Dong-min LEE ,  Jongoh SEO ,  Byung Soo SO

IPC分类号： B23K26/04 ,  B23K26/0622 ,  H01L21/20 ,  H01L21/02

摘要： A laser crystallizing apparatus may include a laser light source, an optical system, and an optical module. The laser light source may generate a laser beam. The optical system may convert the laser beam into a line laser beam. The optical module may disperse energy of the line laser beam in a first direction for generating a dispersed line laser beam. The first direction may be perpendicular to a lengthwise direction of the optical module.

公开(公告)号：US10665508B2

公开(公告)日：2020-05-26

申请号：US16103074

申请日：2018-08-14

申请人： DISCO CORPORATION

发明人： Makoto Tanaka ,  Shinya Yasuda ,  Satoshi Hanajima ,  Harunobu Yuzawa

IPC分类号： H01L21/78 ,  B28D5/00 ,  B23K26/364 ,  H01L21/687 ,  B23K26/04 ,  H01L21/66 ,  H01L21/67 ,  H01L21/68

摘要： A cutting apparatus includes a cutting unit configured to cut a workpiece held on a chuck table, and a groove detecting unit including a CCD imaging element photographing the workpiece held on the chuck table. The groove detecting unit photographs, by the CCD imaging element, a laser-processed groove and a cut groove illuminated by an oblique illumination set such that a light amount of light in a direction parallel with an extending direction of the laser-processed groove as viewed in plan is higher than a light amount of light in a direction orthogonal to the extending direction of the laser-processed groove.

公开(公告)号：US10605654B2

公开(公告)日：2020-03-31

申请号：US15918746

申请日：2018-03-12

申请人： Carl Zeiss SMT GmbH

发明人： Matthias Manger ,  Christoph Husemann ,  Matus Kalisky ,  Lars Stoppe

IPC分类号： G01J1/04 ,  G02B27/10 ,  B23K26/70 ,  G01J1/42 ,  B23K26/03 ,  B23K26/04

摘要： A method and an apparatus for beam analysis in an optical system are disclosed, wherein a plurality of beam parameters of a beam propagating along an optical axis are ascertained. The method includes: splitting the beam into a plurality of partial beams which have a focus offset in the longitudinal direction in relation to the optical axis; recording a measurement image produced by these partial beams; carrying out a forward simulation of the beam in the optical system on the basis of estimated initial values for the beam parameters in order to obtain a simulated image; and calculating a set of values for the beam parameters on the basis of the comparison between the simulated image and the measurement image.

公开(公告)号：US20200088571A1

公开(公告)日：2020-03-19

申请号：US16694115

申请日：2019-11-25

申请人： Carl Zeiss SMT GmbH

发明人： Matthias Manger ,  Christoph Husemann ,  Matus Kalisky ,  Lars Stoppe

IPC分类号： G01J1/42 ,  G01J1/04 ,  B23K26/03 ,  B23K26/04 ,  G02B27/10 ,  B23K26/70

摘要： A method and an apparatus for beam analysis in an optical system are disclosed, wherein a plurality of beam parameters of a beam propagating along an optical axis are ascertained. The method includes: splitting the beam into a plurality of partial beams which have a focus offset in the longitudinal direction in relation to the optical axis; recording a measurement image produced by these partial beams; carrying out a forward simulation of the beam in the optical system on the basis of estimated initial values for the beam parameters in order to obtain a simulated image; and calculating a set of values for the beam parameters on the basis of the comparison between the simulated image and the measurement image.

公开(公告)号：US10576583B2

公开(公告)日：2020-03-03

申请号：US15969087

申请日：2018-05-02

申请人： FANUC CORPORATION

发明人： Masanobu Hatada ,  Takayoshi Matsumoto ,  Takeshi Nogami

IPC分类号： B23K26/36 ,  B23K26/04 ,  B23K26/082 ,  B23K26/08

摘要： A laser machining device includes a scanner head which can scan a laser beam, a movement means for the scanner head, a scanner head control device and a movement control device. In the laser machining device, the scanner head control device controls, based on a machining parameter on a path motion, the scanner head such that the laser beam is scanned in a first direction and a second direction, the scanner head control device includes a distance calculation portion which calculates, from the information of an angle θ formed by a normal to an item to be machined from the scanner head and the direction of application of the laser beam and a focal length, a difference between a desired machining distance and an actual machining distance and based on the result of the calculation, the movement control device corrects the feedrate of the movement means or the scanner head control device corrects the machining parameter such that the desired machining distance and the actual machining distance are made equal to each other.

公开(公告)号：US20200047285A1

公开(公告)日：2020-02-13

申请号：US16097689

申请日：2016-05-24

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： David Yang ,  Wu Tao

IPC分类号： B23K26/244 ,  B23K26/082 ,  B23K26/04 ,  B23K26/22 ,  B23K26/322

摘要： A method of laser welding a workpiece stack-up (10) that includes at least two overlapping steel workpieces, at least one of which includes a surface coating of a zinc-based material. The method includes forming at least one preliminary weld deposit (74) in the workpiece stack-up (10) and, thereafter, forming a principal laser weld joint. The formation of the principal laser spot weld joint involves advancing a principal welding laser beam (90) relative to a plane of the top surface (20) of the workpiece stack-up (10) along a beam travel pattern (104) that lies within an annular weld area (92). The beam travel pattern (104) of the principal welding laser beam (90) surrounds a center area (98) on the plane of the top surface (20) that spans the at least one preliminary weld deposit (74) formed in the workpiece stack-up (10).

公开(公告)号：US20200001393A1

公开(公告)日：2020-01-02

申请号：US16490800

申请日：2018-03-15

申请人： P-Laser N.V.

发明人： Jean Claude Marie Philippron

IPC分类号： B23K26/00 ,  B23K26/03 ,  B23K26/04 ,  B23K26/082 ,  B23K26/36 ,  B08B7/00

摘要： The present invention relates to a handheld pulsed laser device for cleaning or treating a surface, comprising a laser source, a focal distance adjuster and a beam deflector. The laser source is configured to emit a pulsed laser beam and the focal distance adjuster, is configured to change a focal distance of the beam. The beam deflector may comprise at least one movable mirror onto which the beam is deflected, wherein the deflector is configured to deflect the beam to scan the beam along the surface.The device further comprises at least one sensor, configured to provide a sensor signal that is representative for a parameter that is related to a characteristic of the surface, and a control unit, configured to control the beam deflector to scan the beam along the surface in an, at least, two-dimensional pattern, based on the sensor signal.The present invention further relates to a method for using the pulsed laser cleaning device during cleaning or treating of a surface.

公开(公告)号：US10481577B2

公开(公告)日：2019-11-19

申请号：US15440616

申请日：2017-02-23

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： John Forrest ,  Joshua Solomon ,  Michael Poss

IPC分类号： G05B19/402 ,  B23K26/03 ,  B23K26/04 ,  G05B19/18 ,  B23K1/005 ,  B23K26/14 ,  B23K101/00

摘要： A method for object distance detection and focal positioning in relation thereto. The method comprising the steps of: (a) identifying (via a computing device) a desired distance among a plurality of designated sites on an object; (b) adjusting a focus (via an autofocus device) onto the plurality of designated sites; (c) calculating (via an image recognition module) the actual distance among the plurality of designated sites; (d) determining (via the image recognition module) if error exist between the actual distance and the desired distance; and (e) wherein (in no particular order) repeating the steps of (b), (c), and (d) until no substantial error exists between the actual distance and the desired distance.

公开(公告)号：US20190314936A1

公开(公告)日：2019-10-17

申请号：US16314629

申请日：2016-07-29

申请人： TECOI CORTE, S.L.

发明人： JORGE LUIS RODRIGUEZ ORDAS

IPC分类号： B23K26/38 ,  B23K26/04 ,  B23K26/06 ,  B23K26/08

摘要： A double fibre laser cutting system for laser cutting sheet metal that comprises: a cutting machine with a mobile gantry and fixed metal sheets, multiple heads both for straight cutting and bevel cutting, multiple cutting sources in each head, automated means for changing the cutting source in each head, means for controlling all the elements, wherein the multiple cutting sources in each head is carried out by means of two fibres sent from corresponding generator outlets to each head. The simultaneous cutting of one or more metal sheets with different thicknesses is achieved and, consequently, maximum laser cutting capacity in useful length, and in useful width, the use of a single generator, and the automatic adjustment of cutting conditions in accordance with the thicknesses, straight and bevel cutting simultaneously in multiple heads.