公开(公告)号：US12128478B2

公开(公告)日：2024-10-29

申请号：US17606114

申请日：2020-03-31

申请人： Nikon SLM Solutions AG

发明人： Lukas Roesgen ,  Daniel Brueck ,  Andreas Wiesner

IPC分类号： B22F10/31 ,  B22F12/17 ,  B22F12/30 ,  B22F12/41 ,  B22F12/90 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/386 ,  B33Y50/00

CPC分类号： B22F10/31 ,  B22F12/17 ,  B22F12/30 ,  B22F12/41 ,  B22F12/90 ,  B33Y30/00 ,  B33Y50/02 ,  B22F2203/11

摘要： We describe a calibration method for calibrating one or more optical elements of an additive layer manufacturing apparatus useable for producing a three-dimensional workpiece, the method comprising: projecting, using the one or more optical elements, an optical pattern onto a material in order to prepare, from said material, solidified material layers using an additive layer manufacturing technique to form a test sample; determining a geometry of the test sample; comparing the determined geometry with a nominal geometry to generate calibration data; and calibrating the one or more optical elements using said calibration data.

公开(公告)号：US12036608B2

公开(公告)日：2024-07-16

申请号：US17643313

申请日：2021-12-08

申请人： Board of Regents, The University of Texas System

发明人： Ryan B. Wicker ,  Cesar A. Terrazas-Najera ,  Alfonso Fernandez ,  Ralph Felice

IPC分类号： B22F10/80 ,  B22F10/28 ,  B22F12/41 ,  B22F12/49 ,  B22F12/90 ,  B33Y50/00 ,  G01J5/00 ,  G01J5/04 ,  B33Y10/00 ,  G01N21/3563 ,  G02B27/00

CPC分类号： B22F10/80 ,  B22F10/28 ,  B22F12/41 ,  B22F12/49 ,  B22F12/90 ,  B33Y50/00 ,  G01J5/0003 ,  G01J5/042 ,  B22F2201/10 ,  B22F2201/20 ,  B22F2203/11 ,  B33Y10/00 ,  G01J2005/0074 ,  G01N21/3563 ,  G02B27/0006 ,  G01J5/0003 ,  B22F12/90 ,  B33Y30/00 ,  B22F2999/00 ,  B22F12/90 ,  B22F2203/11

摘要： A method of measuring spectral emissivity of materials is provided. The method comprises placing material in a controlled chamber and exposing the material to an energy source to heat the material. At least one multi-wavelength pyrometer measures the spectral emissivity of the material produced by heating by the energy source, wherein the multi-wavelength pyrometer is positioned at a distal end of a tube extending from the chamber, wherein the tube provides a sacrificial surface for vapor condensation to prevent the vapor condensation from obscuring a view port used by the pyrometer.

公开(公告)号：US12023734B2

公开(公告)日：2024-07-02

申请号：US17121004

申请日：2020-12-14

申请人： NATIONAL RESEARCH COUNCIL OF CANADA

发明人： Eric Irissou ,  Jean-Gabriel Legoux ,  Cristian Victor Cojocaru ,  Florin Ilinca ,  Sylvain Bournival

IPC分类号： B05B7/14 ,  B22F10/364 ,  B22F10/38 ,  B22F10/85 ,  B22F12/13 ,  B22F12/43 ,  B22F12/49 ,  B22F12/53 ,  B22F12/90 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/10 ,  B33Y40/20 ,  B33Y50/02 ,  C23C24/08

CPC分类号： B22F10/85 ,  B22F10/364 ,  B22F10/38 ,  B22F12/13 ,  B22F12/43 ,  B22F12/49 ,  B22F12/53 ,  B22F12/90 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/10 ,  B33Y40/20 ,  B33Y50/02 ,  C23C24/08 ,  B05B7/1486 ,  B22F2203/11

摘要： A technique for improving cold spray deposition conditions for cold spray additive manufacture of parts involves providing an in-situ temperature feedback controller with a remote instantaneous temperature sensor supplying surface temperature measurements of the deposition surface, and a (preferably long pulse) laser for heating. Temperature feedback allows for control over deposition conditions yielding predictable deposition properties.

公开(公告)号：US11999102B2

公开(公告)日：2024-06-04

申请号：US18077381

申请日：2022-12-08

申请人： Arcam AB

发明人： Björn Löfving ,  Kristofer Karlsson

IPC分类号： B29C64/153 ,  B22F10/00 ,  B22F10/28 ,  B22F10/37 ,  B22F10/85 ,  B22F12/60 ,  B22F12/67 ,  B22F12/90 ,  B33Y10/00 ,  G06V10/25 ,  B22F10/10 ,  B22F10/32 ,  B22F10/368 ,  B22F10/38 ,  B22F12/52 ,  B22F12/55 ,  B33Y30/00 ,  B33Y50/02

CPC分类号： B29C64/153 ,  B22F10/00 ,  B22F10/28 ,  B22F10/37 ,  B22F10/85 ,  B22F12/60 ,  B22F12/67 ,  B22F12/90 ,  B33Y10/00 ,  G06V10/25 ,  B22F10/10 ,  B22F10/32 ,  B22F10/368 ,  B22F10/38 ,  B22F12/52 ,  B22F12/55 ,  B33Y30/00 ,  B33Y50/02 ,  B22F2999/00 ,  B22F10/85 ,  B22F10/37 ,  B22F2203/03 ,  B22F2999/00 ,  B22F12/60 ,  B22F12/90 ,  B22F2203/11

摘要： Devices, systems, and methods for monitoring a powder layer in additive manufacturing are disclosed. A method of monitoring a powder layer includes receiving image data corresponding the powder layer supported by a powder bed within a build chamber from imaging devices, determining leading and trailing regions of interest located adjacent to a leading end and a trailing end of the moving powder distributor, respectively, the leading and trailing regions of interest moving according to movement of the moving powder distributor, selecting at least one point located in the leading region of interest from the image data, determining first characteristics of the point, when the point is located within the trailing region of interest, determining second characteristics of the point, and comparing the first characteristics to the second characteristics.

公开(公告)号：US20240139809A1

公开(公告)日：2024-05-02

申请号：US18409798

申请日：2024-01-11

申请人： KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY

发明人： Yang TIAN ,  Dong LIANG ,  Bin YANG ,  Baoqiang XU ,  Dachun LIU ,  Fei WANG ,  Yifu LI ,  Wenlong JIANG ,  Yong DENG ,  Jian WU ,  Lipeng WANG

IPC分类号： B22F9/08 ,  B22F9/06

CPC分类号： B22F9/08 ,  B22F2009/065 ,  B22F2009/0812 ,  B22F2203/11 ,  B22F2203/13 ,  B22F2301/058

摘要： An apparatus and method for preparing high-purity spherical magnesium and/or high-purity magnesium powder are provided. The apparatus includes a vertical furnace body, a heating zone, and a condensing zone, where a periphery of the condensing zone is provided with a first thermal insulation device and a second thermal insulation device sequentially from bottom to top, and each of the first thermal insulation device and the second thermal insulation device is removably arranged; the periphery of the condensing zone is further provided with a liquid cooling device; a gas inlet and a gas outlet are formed in the condensing zone; and an inner wall of the condensing zone is provided with an arrangement structure configured to arrange a collection device. A heating temperature of a material and condensation conditions in the condensing zone are controlled to make an evaporated magnesium vapor condensed on the collection device in the condensing zone.

公开(公告)号：US11969822B2

公开(公告)日：2024-04-30

申请号：US16587841

申请日：2019-09-30

申请人： NIKON CORPORATION

发明人： Yuichi Shibazaki

IPC分类号： B23K26/08 ,  B33Y30/00 ,  B33Y50/02 ,  B23K26/342 ,  B23K26/70 ,  B23K26/14 ,  B23K26/16 ,  B33Y10/00 ,  B23K26/146 ,  B22F10/25 ,  B22F12/20 ,  B22F12/70 ,  B22F12/44 ,  B22F10/32

CPC分类号： B23K26/08 ,  B22F10/25 ,  B22F12/20 ,  B22F12/70 ,  B23K26/146 ,  B23K26/1464 ,  B23K26/16 ,  B23K26/342 ,  B23K26/703 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B22F10/32 ,  B22F12/44 ,  B22F2999/00 ,  B22F10/25 ,  B22F2203/11

摘要： The processing system is provided with: a liquid supply device which can supply a liquid; a liquid processing device which processes a liquid supplied from the liquid supply device such that a non-liquid-immersion state is generated locally in a partial area including a target portion on a predetermined surface; a beam irradiation section which emits beams toward the target portion; and a moving apparatus which moves the predetermined surface. The beams are irradiated on the target portion to apply a predetermined processing to the target portion, in a state in which the target portion is in the non-liquid-immersion state.

公开(公告)号：US11969798B2

公开(公告)日：2024-04-30

申请号：US17421640

申请日：2019-01-25

申请人： Quintus Technologies AB

发明人： Per Burstrom ,  Emil Holmstrom

IPC分类号： B22F3/15 ,  B30B11/00 ,  B30B15/26 ,  B30B15/34

CPC分类号： B22F3/15 ,  B30B11/002 ,  B30B11/005 ,  B30B15/26 ,  B30B15/34 ,  B22F2003/153 ,  B22F2203/11 ,  B22F2203/13

摘要： A method in a pressing arrangement is disclosed. The pressing arrangement comprises a pressure vessel arranged to hold pressure medium therein during use of the pressing arrangement, the pressure vessel including a treatment region therein, wherein the treatment region is arranged to accommodate at least one article. The pressing arrangement is arranged so that pressure medium can enter and exit the treatment region. The pressing arrangement comprises at least one controllable pressure medium supplying device configured to transport pressure medium during a cooling phase from another region in the pressing arrangement to the treatment region, wherein the temperature of the pressure medium in the other region is lower than the temperature of the pressure medium in the treatment region during at least part of the cooling phase. At least one value indicative of at least one temperature in the pressure vessel is obtained. Based on the at least one value indicative of at least one temperature in the pressure vessel, at least one operational parameter of the at least one controllable pressure medium supplying device is adjusted, whereby the pressure medium supplying rate of the at least one pressure medium supplying device is adjusted. A pressing arrangement in which the method may be carried out is also disclosed.

公开(公告)号：US20240100596A1

公开(公告)日：2024-03-28

申请号：US18255971

申请日：2021-12-08

申请人： Danmarks Tekniske Universitet ,  Nordic Metals ApS

发明人： Venkata Karthik Nadimpalli ,  David Bue Pedersen ,  Jan Sørensen ,  Jesper Bjørklund Themsen

IPC分类号： B22F9/08 ,  B22F1/05 ,  B33Y80/00

CPC分类号： B22F9/082 ,  B22F1/05 ,  B33Y80/00 ,  B22F2203/11 ,  B22F2203/13 ,  B22F2304/10 ,  B22F2998/10

摘要： A spray forming method for producing a metallic ingot and metallic powder from a metallic source of metal or metal alloy includes: forming one or more streams of metal or alloy from the source, gas atomizing one or more streams of metal or alloy to form one or more sprays of atomized droplets, directing the spray(s) of droplets through a spray nozzle to a rotatable hot body, depositing the droplets to the hot body to form the ingot, controlling the process parameters 1) temperature of metal or alloy, 2) inlet and outlet pressure of the spray nozzle, 3) rotation speed of the hot body, and/or 4) distance between the hot body and the spray(s) of droplets, and collecting the metallic powder having a predefined size distribution. The process parameters are controlled such that the ingot yield is 60-80% and the metallic powder yield is 40-20%, relative to the metallic source.

公开(公告)号：US11913724B2

公开(公告)日：2024-02-27

申请号：US16277100

申请日：2019-02-15

申请人： MARKFORGED, INC.

发明人： Gregory Thomas Mark

IPC分类号： F27B17/00 ,  B22F3/10 ,  B29C64/295 ,  B33Y30/00 ,  B33Y40/00 ,  C04B35/64 ,  B22F10/12 ,  B22F10/14 ,  B22F10/18 ,  B22F10/43 ,  B22F10/73 ,  B22F10/80 ,  B22F12/55 ,  B29C64/165

CPC分类号： F27B17/0016 ,  B22F3/10 ,  B22F3/1021 ,  B29C64/295 ,  B33Y30/00 ,  B33Y40/00 ,  C04B35/64 ,  B22F10/12 ,  B22F10/14 ,  B22F10/18 ,  B22F10/43 ,  B22F10/73 ,  B22F10/80 ,  B22F12/55 ,  B22F2203/11 ,  B22F2998/10 ,  B29C64/165 ,  B22F2998/10 ,  B22F10/14 ,  B22F3/1021 ,  B22F2998/10 ,  B22F10/12 ,  B22F3/1021 ,  B22F2998/10 ,  B22F10/18 ,  B22F3/1021

摘要： According to one aspect, embodiments herein provide a furnace for debinding and sintering additively manufactured parts comprising a unitarily formed retort having at least one open side, a heater for heating a sintering volume within the retort to a debinding temperature and to a sintering temperature, an end cap sealing the at least one open side, a forming gas line penetrating the end cap for supplying forming gas at a flowrate, and a heat exchanger within the retort, outside the sintering volume, and adjacent a heated wall of the retort, the heat exchanger having an inlet connected to the forming gas line and an outlet to the sintering volume, wherein the heat exchanger includes a heat exchange tube length sufficient to heat the forming gas to within 20 degrees Celsius of the sintering temperature before the forming gas exits the outlet.

公开(公告)号：US20230390997A1

公开(公告)日：2023-12-07

申请号：US18454857

申请日：2023-08-24

申请人： Concept Laser GmbH

发明人： Frank Herzog

IPC分类号： B29C64/153 ,  B29C64/393 ,  B29C64/268 ,  B29C64/386 ,  B22F10/28 ,  B22F12/49 ,  B22F12/90 ,  B22F10/366 ,  B22F10/368 ,  B23K26/082 ,  B23K26/144 ,  B23K26/342 ,  B23K15/00 ,  B23K15/02 ,  B23K26/03

CPC分类号： B29C64/153 ,  B29C64/393 ,  B29C64/268 ,  B29C64/386 ,  B22F10/28 ,  B22F12/49 ,  B22F12/90 ,  B22F10/366 ,  B22F10/368 ,  B23K26/082 ,  B23K26/144 ,  B23K26/342 ,  B23K15/002 ,  B23K15/0086 ,  B23K15/02 ,  B23K26/034 ,  B22F2203/11 ,  Y02P10/25 ,  B22F12/43

摘要： The invention relates to a method for producing a three-dimensional component by an electron-beam, laser-sintering or laser-melting process, in which the component is created by successively solidifying predetermined portions of individual layers of building material that can be solidified by being exposed to the effect of an electron-beam or laser-beam source (2) by melting on the building material, wherein thermographic data records are recorded during the production of the layers, respectively characterizing a temperature profile of at least certain portions of the respective layer, and the irradiation of the layers takes place by means of an electron beam or laser beam (3), which is controlled on the basis of the recorded thermographic data records in such a way that a largely homogeneous temperature profile is produced, wherein, to irradiate an upper layer, a focal point (4) of the electron beam or laser beam (3) is guided along a scanning path (17), which is chosen on the basis of the data record characterizing the temperature profile of at least certain portions of the layer lying directly thereunder or on the basis of the data records characterizing the temperature profiles of at least certain portions of the layers lying thereunder.