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公开(公告)号:WO2021260268A1
公开(公告)日:2021-12-30
申请号:PCT/FI2021/050472
申请日:2021-06-21
Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY
Inventor: REIJONEN, Joni , PINOMAA, Tuomas , REVUELTA, Alejandro
IPC: B22F5/10 , B22F10/28 , B22F10/30 , B22F12/20 , B22F12/30 , B29C64/153 , B29C64/245 , B33Y10/00 , B33Y30/00 , B33Y80/00 , B22F7/06 , B22F7/08 , B22F2999/00 , B22F7/062
Abstract: Method for embedding components during additive manufacturing of metal parts, wherein the product (1) is formed with laser powder bed fusion process, at least one space (3) for a component (4) is formed inside the metal material of the product during the additive manufacturing process, the additive manufacturing process is interrupted before the said space is closed, the component is inserted in the said open space, and the additive manufacturing process for manufacturing the product is continued, wherein at least one cooling channel (5), for cooling the area of the product (1) wherein the said space (3) is located, is formed inside the product to be manufactured before the additive manufacturing process is interrupted for insertion of the said component (4), and cooling fluid in conveyed in the at least one cooling channel.
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2.
公开(公告)号:WO2021222704A1
公开(公告)日:2021-11-04
申请号:PCT/US2021/030090
申请日:2021-04-30
Applicant: FORMLABS, INC.
Inventor: AULD, Christopher , EVANS, Connor
IPC: B29C64/153 , B22F10/00 , B22F10/30 , B22F12/00 , B29C64/393 , B33Y10/00 , B33Y50/02
Abstract: Techniques for designing and fabricating thermal support regions via additive fabrication are described. Defects produced as a result of temperature differentials within an additive fabrication device that forms parts by sintering particles of material may be mitigated or avoided by directing energy to regions around a part that is sufficient to heat the material and cause it to partially sinter, but not enough to fully sinter the material. The mechanical properties of such a thermal support region may resist the effects caused by temperature gradients. In addition, or alternatively, the heating of the thermal support region material may reduce heat lost by nearby sintered material. In either or both cases, the thermal support region acts as a kind of 'volumetric armor' that surrounds some or all of the part and protects the part from defects.
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公开(公告)号:WO2021040656A2
公开(公告)日:2021-03-04
申请号:PCT/TR2020/050750
申请日:2020-08-25
Inventor: YAVAS, Hakan , TANRIKULU, Ahmet Alptug
IPC: B22F10/00 , B33Y10/00 , B22F10/28 , B22F10/30 , B22F10/50 , B22F12/00 , B33Y50/02 , C23C14/14 , C23C14/225 , C23C14/352 , C23C14/54 , H01J37/3405
Abstract: The present invention relates to a body (2); a table (3) which is located on the body (2) and allows powders (T) to be laid thereon by means of a laying apparatus (S); at least one layer (L) which is created by sintering or fusing the powders (T) laid on the table (3); a part (P) which is produced by depositing the layers (L) using additive manufacturing method; at least one heat source assembly (4) which is located on the body (2) and applies heat treatment to the powders (T) laid on the table (3); at least one sensor (5) for measuring position and operating status of the heat source assembly (4); and at least one control unit (6) controlling the heat source assembly (4) based on data received from the sensor (5).
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公开(公告)号:WO2021003271A2
公开(公告)日:2021-01-07
申请号:PCT/US2020/040498
申请日:2020-07-01
Applicant: NIKON CORPORATION
Inventor: PHILLIPS, Alton Hugh , ROSSI, Joseph P. , MARQUEZ, Johnathan Agustin , JEONG, Yoon Jung , GUO, Lexian , CHANG, Patrick Shih , GOODWIN, Eric Peter , BINNARD, Michael Birk , HERR, Brett William , BJORK, Matthew Parker-McCormick , COON, Paul Derek , ISHIKAWA, Motofusa
IPC: B29C64/153 , B33Y10/00 , B33Y30/00 , B29C64/30 , B29C64/321 , B29C64/343 , B33Y40/00 , B29C64/236 , B29C64/245 , B29C64/329 , B29C64/255 , B22F12/37 , B22F12/90 , B22F10/85 , B22F12/52 , B22F10/20 , B22F10/28 , B22F10/30 , B22F12/00 , B22F12/46 , B29C64/205 , B33Y50/02
Abstract: A processing machine (10) for building an object (11) from powder (12) includes a build platform (26A); a powder supply assembly (18) that deposits the powder (12) onto the build platform (26A) to form a powder layer (13); and an energy system (22) that directs an energy beam (22D) at a portion of the powder (12) on the build platform (26A) to form a portion of the object (11). The powder supply assembly (18) can include (i) a powder container (640A) that retains the powder (12); (ii) a supply outlet (639) positioned over the build platform (26A); and (ii) a flow control assembly (642) that selectively controls the flow of the powder (12) from the supply outlet (639).
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5.
公开(公告)号:WO2021175790A
公开(公告)日:2021-09-10
申请号:PCT/EP2021/055064
申请日:2021-03-01
Applicant: AMSIS GMBH [DE]/[DE]
Inventor: PLOSHIKHIN, Dmitry
IPC: B22F10/20 , B22F10/30 , B22F12/00 , B29C64/153 , B29C64/188 , B29C64/393 , B33Y10/00 , B33Y30/00 , B33Y50/02
Abstract: Die Erfindung betrifft ein Verfahren (12) zur additiven Fertigung eines dreidimensionalen Bauteils (10) aus mehreren Bauteilschichten (Li) durch Konsolidieren des Bauteilausgangsmaterials durch jeweils selektives Schmelzen und/oder Sintern mittels mindestens einer Energiequelle (11), wobei die Einbringung der Energie gemäß einer, vor dem Beginn der Fertigstellung einer Bauteilschicht (Li) definierten anfänglichen Pfadplanung (13) der oder jeder Energiequelle (11) für diese Bauteilschicht (Li) erfolgt und das Erstellen der Bauteilschicht (Li) in einem Prozessüberwachungssystem (22) überwacht wird und die Bauteilschicht (Li) mindestens zum Teil konsolidiert wird. Die Erfindung ist dadurch gekennzeichnet, dass mit Nutzung von Daten aus dem Prozessüberwachungssystem (22) über den konsolidierten Teil der Bauteilschicht (Li), eine Lage und Ausbreitung von mindestens einer Defektstelle (Dj) in der Bauteilschicht (Li) bestimmt wird und ein Reparaturbereich (Rj) innerhalb der Bauteilschicht (Li), der die Defektstelle (Dj) umfasst, bestimmt wird, und dass mindestens ein neuer Reparaturpfad (34) der Energiequelle (11), der in der anfänglichen Pfadplanung (13) für die Bauteilschicht (Li) nicht enthalten ist, innerhalb einer Kontur (35) des Reparaturbereichs (Rj) zwecks Reparatur der Defektstelle (Dj) durch Umschmelzen des Reparaturbereichs (Rj) generiert wird und dass die Reparatur durch Energieeinbringung gemäß dem neuen Reparaturpfad (34) zum Umschmelzen des Reparaturbereichs (Rj) während oder unmittelbar nach der Fertigstellung der Bauteilschicht (Li) und vor dem Beginn der Erstellung der nächsten Bauteilschicht (Li+1) an der Bauteilschicht (Li) durchgeführt wird.
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6.
公开(公告)号:WO2021165190A1
公开(公告)日:2021-08-26
申请号:PCT/EP2021/053618
申请日:2021-02-15
Inventor: SANDER, Jan
IPC: B22F10/28 , B22F10/30 , B29C64/153 , B29C64/171 , B33Y10/00
Abstract: Die vorgeschlagene Lösung betrifft Verfahren zum Herstellen mehrerer Bauteile (1a-1d, 2a, 2g) im Rahmen eines additiven Fertigungsprozesses mithilfe eines Partikel (P1-P5) aufweisenden Pulvers, das zur Ausformung der mehreren Bauteile (1a-1d, 2a, 2g) wenigstens lokal geschmolzen wird. Hierbei können die mehreren Bauteile (1a-1d, 2a, 2g) in einer sich entlang einer Herstellungsebene erstreckenden Bauteillage (L8) ausgeformt werden, in der ein erstes Bauteil (1a) wenigstens in einer Raumrichtung (x, y) entlang der Herstellungsebene benachbart zu einem zweiten Bauteil (1b) der Bauteillage (L8) liegt. In diesem Zusammenhang wird vorgeschlagen, zwischen dem ersten Bauteil (1a) und dem zweiten Bauteil (1b) der Bauteillage (L8) einen Spalt (g) mit einer Spaltbreite (s) vorzusehen, die unter Nutzung einer Partikelgrößenverteilung der Partikel (P1-P5) in dem Pulver vorgegeben ist.
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公开(公告)号:WO2021126345A1
公开(公告)日:2021-06-24
申请号:PCT/US2020/054263
申请日:2020-10-05
Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION
Inventor: NILAKANTAN, Padmanabhan
IPC: B22F3/105 , B29C64/386 , B29C64/393 , B33Y10/00 , B33Y50/00 , B33Y50/02 , G06Q10/06 , H04L9/32 , G06N3/08 , G06N5/00 , G06N5/02 , G06Q10/04 , G06Q50/04 , B22F10/14 , B22F10/28 , B22F10/30 , B22F10/366 , B22F10/38 , B22F10/40 , B22F10/80 , B22F2999/00 , G06N20/00 , G06N20/10 , G06N20/20 , G06N3/088 , G06N5/003 , G06N5/022 , H04L2209/38 , H04L9/0637 , H04L9/3239
Abstract: Systems and methods for machine-learning-based additive manufacturing use a machine-learning model to process an input vector describing a new part transaction, thereby providing part optimization outputs and command initiation outputs to configure additive manufacturing of a new part. The machine-learning model is trained based on entries in a user experience database, each entry in the user experience database including data defining requirements for an additively manufactured part previously fabricated or attempted to be fabricated, specifications describing an additive manufacturing fabrication device, a selection of a raw material type fed to the fabrication device for fabrication of the additively manufactured part, a fabrication spatial orientation of the additively manufactured part within the fabrication device, a fabrication slicing resolution of the additively manufactured part, and a toolpath taken by the fabrication device in fabricating the additively manufactured part.
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公开(公告)号:WO2020100022A1
公开(公告)日:2020-05-22
申请号:PCT/IB2019/059695
申请日:2019-11-12
Applicant: SENSIMA INSPECTION SARL
Inventor: MONNIER, Frédéric , REVAZ, Bernard , SANTI, Gilles , SPIERINGS, Adrian , STAUB, Alexandre , LANY, Marc
IPC: B22F3/105 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B29C64/153 , B29C64/165 , B22F10/10 , B22F10/20 , B22F10/30
Abstract: The invention concerns a system (1) for additive manufacturing, comprising a support (10), a dispenser (110,111, 112) configured to provide an additive material (3, 33, 34) on the support (10) and/or close to a component (2) supported by said support (10). The system (1) also comprises a head controller (13) configured to control a relative movement (122) between an head (12) and the support (10) for selectively providing an energy (121) for joining additive material (3) and/or a binding agent for dunking additive material so as to permit a solidification by curing. The system further comprises a detecting device (14) mechanically fixed to the head (12) and configured to provide a given material property by sensing a target portion (31) of the additive material, and/or a target portion (22) of the joined and/or dunked additive material.
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公开(公告)号:WO2022248189A1
公开(公告)日:2022-12-01
申请号:PCT/EP2022/062247
申请日:2022-05-06
Applicant: SIEMENS AKTIENGESELLSCHAFT
Inventor: REISCH, Raven Thomas , HAUSER, Tobias , KAMPS, Tobias
IPC: B22F10/20 , B22F10/30 , B22F10/85 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B29C64/118 , B29C64/393 , G05B19/18 , G05B19/4099
Abstract: Die Erfindung betrifft ein Verfahren zu additiven Fertigung eines Bauteils (2) umfassend folgende Schritte: - Erstellen eines Maschinencodes - Übertragen des Maschinencodes an eine Steuerung (4) - Starten des Fertigungsprozesses - Überwachung des Prozesses mit Sensoren (6), - Auswertung von Sensordaten zur Ermitteln einer Anomalie (8) im herzustellenden Bauteil sowie - paralleler Aufbau eines digitalen Zwillings (10) des entstehenden Bauteils (2) während des Prozesses aus den Sensordaten umfassend Positionsdaten der Anomalie (8) - Prädiktion über die Position (12) eines Druckkopfs (14) zu einer bestimmten Zeit mittels des Maschinencodes - Analyse eines Arbeitsbereiches rund um diese Position in Hinblick auf vorhandene Anomalien mittels des digitalen Zwillings - Anpassung der Prozessparameter bei Erreichen des Arbeitsbereiches zur Behebung der Anomalie.
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10.
公开(公告)号:WO2022212164A1
公开(公告)日:2022-10-06
申请号:PCT/US2022/021710
申请日:2022-03-24
Applicant: NUTECH VENTURES
Abstract: Additive manufacturing (AM) of metals can result in parts with unfavorable mechanical properties. Laser peening (LP) is a high strain rate mechanical surface treatment that hammers a workpiece and induces favorable mechanical properties. Peening strain hardens a surface and imparts compressive residual stresses improving the mechanical properties of a material. This disclosure describes systems, methods, and techniques for modeling laser peening of a part and determining when and where laser peening can be applied to layers of the part in order to improve the mechanical properties of that part.
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