公开(公告)号：US20170368605A1

公开(公告)日：2017-12-28

申请号：US15116566

申请日：2015-12-25

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Yasushi FUKASE

IPC: B22F3/105 ,  B22F3/16

CPC classification number: B22F3/105 ,  B22F3/1055 ,  B22F3/16 ,  B22F7/06 ,  B22F2003/1056 ,  B22F2999/00 ,  B29C64/153 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  Y02P10/295 ,  B22F2207/01

Abstract: A three-dimensional laminated and shaped object having a graded composition is accurately shaped. A three-dimensional laminating and shaping apparatus for shaping a three-dimensional laminated and shaped object having a graded composition by laminating a plurality of kinds of materials includes a material supplier that supplies the materials while executing a scan, an irradiator that irradiates the materials with a beam, and a controller that controls the material supplier. The controller controls the material supplier to supply, to a predetermined scanning area of a material scanning area, a necessary amount of a predetermined material for laminating one layer of the three-dimensional laminated and shaped object at a predetermined number of times.

公开(公告)号：US20170259377A1

公开(公告)日：2017-09-14

申请号：US15119816

申请日：2015-11-11

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Hiroshi OHNO ,  Satoshi TSUNO ,  Yuji SASAKI ,  Go OBARA ,  Naotada OKADA

IPC: B23K26/14 ,  B23K26/144 ,  B33Y30/00 ,  B33Y40/00 ,  B05B7/22 ,  B23K26/342

CPC classification number: B23K26/1476 ,  B05B7/228 ,  B23K26/144 ,  B23K26/21 ,  B23K26/34 ,  B23K26/342 ,  B33Y30/00 ,  B33Y40/00

Abstract: A powder convergence improves without varying the flow velocity and powder density of a powder flow. A processing nozzle includes an inner cone including a beam path that passes light from a light source, an outer cone arranged outside the inner cone, a fluid ejection channel formed by a gap between the inner cone and the outer cone, and including an ejection port that opens toward a process surface, and a fluid guide channel having a flow inlet for a fluid. The fluid guide channel guides the fluid toward the fluid ejection channel in a direction away from the beam path.

公开(公告)号：US20170050270A1

公开(公告)日：2017-02-23

申请号：US15119469

申请日：2015-03-24

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Hideaki MIYANO ,  Yoshikazu OOBA ,  Yousuke KATOU ,  Koukichi SUZUKI ,  Yuya DAICHO

IPC: B23K26/342 ,  B23K15/00 ,  B23K15/02 ,  B29C67/00 ,  B33Y40/00 ,  B33Y50/02 ,  B22F3/105 ,  B23K26/144 ,  B33Y30/00

Abstract: This invention quickly supplies a predetermined amount of powder from a hopper to a recoater. A powder supply apparatus includes, as its feature, a hopper, a powder spreader, a powder replenisher, and a pivoting unit. The hopper of the powder supply apparatus stores a powder. The powder spreader spreads the powder on a shaping surface. The powder replenisher of the powder supply apparatus is provided between the hopper and the powder spreader, and replenishes the powder spreader with a predetermined amount of powder. The pivoting unit of the powder supply apparatus causes the powder replenisher to pivot.

Abstract translation: 本发明从料斗快速地将预定量的粉末提供给重涂器。 作为其特征的粉末供给装置包括料斗，粉末撒播机，粉末补给器和旋转单元。 粉末供给装置的料斗存储粉末。 粉末撒布机将粉末涂抹在成形表面上。 粉末供给装置的粉末补充剂设置在料斗和粉末撒布机之间，并以预定量的粉末补充粉末撒播机。 粉末供给装置的枢转单元使粉末补充器枢转。

公开(公告)号：US20160375521A1

公开(公告)日：2016-12-29

申请号：US14888236

申请日：2015-03-04

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Yuji SASAKI ,  Hiroshi OHNO ,  Mitsuo SASAKI ,  Takashi OBARA ,  Kazuyuki MASUKAWA

IPC: B23K26/14 ,  B23K15/00 ,  B23K26/70 ,  B23K26/144 ,  B23K26/34

CPC classification number: B23K26/1476 ,  B23K15/0026 ,  B23K26/144 ,  B23K26/34 ,  B23K26/70

Abstract: A machining apparatus that need not exchange a processing nozzle when changing a shaping condition, and increases the use efficiency of a material is disclosed. The processing nozzle that performs processing by ejecting a processing material toward a molten pool formed on a process surface by an energy line includes a cylindrical inner housing that incorporates a path through which the energy line passes, and ejects the energy line from one end, a cylindrical outer housing that incorporates the inner housing, and has an inner surface tapered in the ejection direction of the energy line ejected from the inner housing, and a slide mechanism that changes, along the energy line, the relative position of the outer housing with respect to the inner housing. The gap between the outer surface of the inner housing and the inner surface of the outer housing forms an ejection port for the processing material, and the size of the ejection port changes in accordance with a change of the relative position by the slide mechanism.

Abstract translation: 公开了一种在改变成形条件时不需要更换处理喷嘴并且提高材料的使用效率的加工装置。 通过能量线向处理表面形成的熔池喷射处理材料进行处理的加工喷嘴包括圆筒形的内壳，其包含能量线通过的路径，并从一端喷射能量线， 其包括内壳体，并且具有在从内壳体排出的能量线的排出方向上渐缩的内表面;以及滑动机构，其沿着能量线改变外壳体的相对位置，相对于 到内部房屋。 内壳体的外表面和外壳体的内表面之间的间隙形成用于处理材料的喷射口，并且喷射口的尺寸根据滑动机构的相对位置的变化而变化。

公开(公告)号：US20160368215A1

公开(公告)日：2016-12-22

申请号：US14763043

申请日：2015-02-27

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Hideaki MIYANO ,  Yoshikazu OOBA ,  Yousuke KATOU ,  Koukichi SUZUKI ,  Yuya DAICHO

IPC: B29C67/00 ,  B05C11/02 ,  B05C11/10 ,  B33Y30/00

CPC classification number: B29C67/0085 ,  B05C11/025 ,  B05C11/1026 ,  B22F3/105 ,  B28B13/02 ,  B29C31/02 ,  B29C64/153 ,  B29C64/20 ,  B29C67/00 ,  B29K2105/251 ,  B33Y30/00

Abstract: The spread amount of a powder to be spread from a powder recoater is adjusted. The powder recoater according to this invention includes a hopper that stores a powder. The powder recoater according to this invention also includes a cylindrical powder supplier that has a side surface close to or in contact with the bottom surface of the hopper and includes a supply path for the powder. The powder recoater according to this invention further includes a pivoting unit that causes the powder supplier to pivot. In the powder recoater according to this invention, the center axis of the supply path crosses the center axis of the powder supplier.

Abstract translation: 调整从粉末涂布器扩散的粉末的铺展量。 根据本发明的粉末再生剂包括储存粉末的料斗。 根据本发明的粉末再生剂还包括圆柱形粉末供应商，其具有靠近或接触料斗底面的侧表面，并且包括用于粉末的供给路径。 根据本发明的粉末再生剂还包括使粉末供应商枢转的枢转单元。 在根据本发明的粉末再生器中，供应路径的中心轴线与粉末供应商的中心轴线相交。

公开(公告)号：US20240134343A1

公开(公告)日：2024-04-25

申请号：US18278376

申请日：2021-02-26

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Kenta AOYAGI ,  Akihiko CHIBA

IPC: G05B19/4099 ,  B22F10/85 ,  B29C64/393 ,  B33Y50/02 ,  G06T7/00 ,  G06T7/11

CPC classification number: G05B19/4099 ,  B22F10/85 ,  B29C64/393 ,  B33Y50/02 ,  G06T7/001 ,  G06T7/11 ,  G05B2219/49023 ,  G06T2207/20021 ,  G06T2207/30108

Abstract: An information processing apparatus for controlling additive manufacturing of a powder bed method includes an acquirer that acquires roughness data indicating a roughness of a manufacturing surface after melting, and defect determiner that divides the manufacturing surface into small regions each having a predetermined size, and compares the roughness data with a predetermined threshold for each small region, thereby determining whether a defect exists in the small region. If an unmolten region is included in the small region, the defect determiner replaces data of the manufacturing surface in the unmolten region using data of the manufacturing surface in the small region, and determines whether a defect exists in the small region including the unmolten region. Also, the manufacturing defect detection method further includes a defect repair instructor that instructs remelting of a region that is determined by the defect determiner to have a defect.

公开(公告)号：US11644397B2

公开(公告)日：2023-05-09

申请号：US16641963

申请日：2017-08-25

Applicant: FUKUDA METAL FOIL & POWDER CO., LTD. ,  TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Seiichi Matsumoto ,  Yuji Sugitani ,  Motonori Nishida

IPC: G01N15/02 ,  G01N15/00 ,  B22F10/28 ,  G01N3/24

CPC classification number: G01N15/0211 ,  B22F10/28 ,  G01N3/24 ,  G01N2015/0092 ,  G01N2015/0096 ,  B22F2999/00 ,  B22F1/14 ,  B22F10/20 ,  C22C1/0425

Abstract: This invention relates to a method of evaluating a squeegeeing property of powder for lamination shaping by stable criteria. In this method, the squeegeeing property is evaluated using at least a satellite adhesion ratio of the powder and an apparent density of the powder. The satellite adhesion ratio is the ratio of the number of particles on which satellites are adhered to the number of all particles. If the satellite adhesion ratio is equal to or less than 50%, and the apparent density is equal to or more than 3.5 g/cm3, the squeegeeing property is evaluated as that the powder can be spread into a uniform powder layer in the lamination shaping. Furthermore, if the 50% particle size of a powder obtained by a laser diffraction method is 3 to 250 μm, the squeegeeing property is evaluated as that the powder can be spread into a uniform powder layer in the lamination shaping.

公开(公告)号：US20220097143A1

公开(公告)日：2022-03-31

申请号：US17426521

申请日：2019-12-13

Applicant: Mitsubishi Heavy Industries Machine Tool Co., Ltd. ,  Technology Research Association for Future Additive Manufacturing

Inventor： Tomohiro WAKANA

IPC: B22F10/85 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B22F10/28 ,  B22F12/90 ,  B23K26/34

Abstract: In the three-dimensional deposition device and the three-dimensional deposition method, included are: a powder passage and a nozzle injection opening serving as a powder supply unit that supplies powder toward an object to be processed; a laser path serving as a light irradiation unit that irradiates the powder with a laser beam to sinter or melt and solidify at least a part of the powder irradiated with the laser beam to form a formed layer; an interference information acquisition unit that acquires interference information on the object to be processed with the powder injected from the nozzle injection opening based on the shape of the object to be processed; and a controller that changes the powder passage of the powder that the nozzle injection opening supplies to the object to be processed based on the interference information acquired by the interference information acquisition unit.

公开(公告)号：US20210387261A1

公开(公告)日：2021-12-16

申请号：US17251700

申请日：2018-06-13

Applicant: NIKON CORPORATION ,  TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Koki TAKESHITA

IPC: B22F10/80 ,  G06T7/00 ,  B33Y50/00 ,  B22F12/90 ,  B29C64/386

Abstract: A calculation device used in a manufacturing apparatus for producing a 3D manufactured object from a solidified layer formed by heating a layer-shaped material layer formed of a powder material by irradiation with an energy beam includes a detection unit configured to obtain a state of the material layer based on a shape of the formed material layer, and an output unit configured to output information on the state of the material layer obtained by the detection unit to set a manufacturing condition of the manufacturing apparatus.

公开(公告)号：US20210268586A1

公开(公告)日：2021-09-02

申请号：US17251719

申请日：2018-06-13

Applicant: NIKON CORPORATION ,  TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Koki TAKESHITA

IPC: B22F10/85 ,  B22F12/41 ,  B22F10/368 ,  B22F12/49 ,  B22F12/90 ,  B33Y50/02

Abstract: A calculation device used in a manufacturing apparatus for producing a 3D manufactured object from a solidified layer formed by heating a powder material by irradiation with an energy beam, includes a detection unit configured to obtain a state of at least a part of a predetermined region including a melted portion in which the powder material melts by being heated by irradiation with an energy beam, and an output unit configured to output state information based on the state obtained by the detection unit to change a manufacturing condition of the manufacturing apparatus.