公开(公告)号：US20170266675A1

公开(公告)日：2017-09-21

申请号：US15120001

申请日：2015-11-11

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Hiroshi OHNO ,  Satoshi TSUNO ,  Yuji SASAKI

IPC: B05B7/14

CPC classification number: B05B7/14 ,  B05B7/228 ,  B05C19/00 ,  B23K26/144 ,  B23K26/21 ,  B23K26/34 ,  C23C24/10 ,  C23C26/02

Abstract: A branch location is arranged close to a nozzle, and the channel lengths are the same. A processing nozzle that includes a beam path for passing light from a light source and ejects a fluid containing a processing material from an ejection port includes a supply pipe that is arranged outside the beam path through which the light passes, and supplies the fluid, and a first branch pipe and a second branch pipe that supply the fluid from the supply pipe to the ejection port, and have the same total length. The first branch pipe includes a first bent portion having a first shape on an upstream side of the fluid, and a second bent portion having a second shape on a downstream side of the fluid, and the second branch pipe includes a third bent portion having the first shape on the upstream side of the fluid, and a fourth bent portion having the second shape on the downstream side of the fluid.

公开(公告)号：US20170259576A1

公开(公告)日：2017-09-14

申请号：US15119542

申请日：2015-09-09

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

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

IPC: B41J2/165

CPC classification number: B41J2/16552 ,  B41J2/165 ,  B41J2/16535

Abstract: A line inkjet head cleaning apparatus for effectively cleaning a long line inkjet head includes a wiper fixer extending in a longitudinal direction of a line inkjet head as a cleaning target and having a predetermined width in a vertical direction, a cleaning wiper being fixed to an upper end thereof, a cleaning solution tank having a predetermined volume accommodating the wiper fixer and having an opening in an upper surface, and a driver that vertically moves the wiper fixer between a cleaning solution in the cleaning solution tank and the line inkjet head as a cleaning target positioned above the opening.

公开(公告)号：US20170154750A1

公开(公告)日：2017-06-01

申请号：US14785730

申请日：2015-01-09

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Takashi SATO

IPC: H01J37/065

CPC classification number: H01J37/065 ,  B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1057 ,  B22F2999/00 ,  B33Y30/00 ,  H01J3/08 ,  H01J3/12 ,  H01J37/06 ,  H01J37/304 ,  H01J2237/06308 ,  H01J2237/0653 ,  Y02P10/295 ,  B22F2203/03 ,  B22F2202/06 ,  B22F2202/11

Abstract: When an emission current is changed, a decrease in brightness of an electron beam is prevented. An electron gun includes a cathode that emits thermoelectrons, a Wehnelt electrode that focuses the thermoelectrons, a control electrode that extracts the thermoelectrons from a distal end of said cathode, an anode that accelerates the thermoelectrons and irradiates a powder with the thermoelectrons as an electron beam, and an optimum condition collection controller that changes at least one of a bias voltage to be applied to the Wehnelt electrode and a control electrode voltage to be applied to the control electrode, and decides a combination of the bias voltage and the control electrode voltage at which the brightness of the electron beam reaches a peak.

公开(公告)号：US20170050268A1

公开(公告)日：2017-02-23

申请号：US15119350

申请日：2015-03-24

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Yasuyuki FUJIYA ,  Yoshinao KOMATSU ,  Ryuichi NARITA

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

CPC classification number: B23K26/1476 ,  B22F3/1055 ,  B22F2003/1056 ,  B23K26/144 ,  B23K26/342 ,  B29C64/141 ,  B29C64/153 ,  B29C64/209 ,  B29C67/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y70/00 ,  Y02P10/295

Abstract: Disclosed is a processing nozzle for simultaneously ejecting a plurality of types of powder materials. This processing nozzle is a processing nozzle used to eject a powder material to a molten pool formed on a process surface by a laser beam, and includes an inner housing that forms an optical path to pass the laser beam, and an outer housing arranged while being separated from the inner housing by a gap serving as a first supply path of the powder material. A second supply path of the powder material and a third supply path having a diameter different from the second supply path are provided inside the outer housing.

Abstract translation: 公开了一种用于同时喷射多种类型的粉末材料的加工喷嘴。 该加工喷嘴是用于通过激光束将粉末材料喷射到在工艺表面上形成的熔池中的处理喷嘴，并且包括形成通过激光束的光路的内壳体，以及外壳体， 通过作为粉末材料的第一供给路径的间隙与内部壳体分离。 粉末材料的第二供应路径和具有与第二供应路径不同的直径的第三供应路径设置在外壳内。

公开(公告)号：US20170038596A1

公开(公告)日：2017-02-09

申请号：US14763151

申请日：2015-03-10

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Saneyuki GOYA ,  Toshiya WATANABE ,  Minoru DANNO ,  Yoshihito FUJITA ,  Haruhiko NIITANI

IPC: G02B27/14 ,  G01J1/04 ,  G02B17/00

CPC classification number: G02B27/144 ,  B23K26/032 ,  B23K26/042 ,  B23K26/046 ,  B23K26/0643 ,  B23K26/36 ,  G01J1/0418 ,  G02B5/205 ,  G02B27/108

Abstract: This invention is directed to attenuating a beam output without changing the beam position and the beam diameter. A high-output optical attenuator includes a first reflector that totally reflects incident light and causes first reflected light serving as reflected light of the incident light to enter a second reflecting portion, a second reflector that reflects the first reflected light and causes second reflected light serving as reflected light of the first reflected light to enter a third reflecting portion, a third reflector that reflects the second reflected light and causes third reflected light serving as reflected light of the second reflected light to enter a fourth reflecting portion, and a fourth reflector that reflects the third reflected light as fourth reflected light having the same optical axis as the optical axis of the incident light. At least two of the second reflector, the third reflector, and the fourth reflector are half mirrors.

Abstract translation: 本发明涉及在不改变光束位置和光束直径的情况下衰减光束输出。 高输出光衰减器包括：全反射入射光的第一反射器，并且使作为入射光的反射光的第一反射光进入第二反射部;反射第一反射光的第二反射体， 作为第一反射光的入射到第三反射部的反射光，反射第二反射光并使第三反射光作为第二反射光的反射光的第三反射光入射到第四反射部的第三反射器，以及第四反射器， 将第三反射光反射为具有与入射光的光轴相同的光轴的第四反射光。 第二反射器，第三反射器和第四反射器中的至少两个是半反射镜。

公开(公告)号：US20160368097A1

公开(公告)日：2016-12-22

申请号：US14889088

申请日：2015-02-25

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

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

IPC: B23K26/342 ,  B33Y50/02 ,  B29C67/00 ,  B23K26/073 ,  B23K26/70 ,  B23K26/08 ,  B23K26/06 ,  B33Y30/00 ,  B23K26/144

CPC classification number: B23K26/342 ,  B23K26/064 ,  B23K26/0648 ,  B23K26/0736 ,  B23K26/0869 ,  B23K26/144 ,  B23K26/702 ,  B29C64/153 ,  B29C67/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: An optical processing head capable of downsizing an apparatus while increasing the shaping accuracy of optical processing is disclosed. The optical processing head performs processing while moving, in a predetermined moving direction on a processing surface, an optical spot formed by condensing light emitted by a light source. The optical processing head includes an optical element that condenses light emitted by the light source to generate the optical spot of a shape elongated in the moving direction of the optical spot. Part of the optical spot is set as a processing region, the front side and/or rear side of the processing region in the moving direction is set as a pre-heating region and/or post-heating region, and a processing target object before and/or after processing in the region is heated.

Abstract translation: 公开了一种能够在增加光学处理的成形精度的同时对装置进行小型化的光学处理头。 光学处理头在处理表面上的预定移动方向上移动通过聚光由光源发出的光而形成的光点而进行处理。 光学处理头包括会聚光源发出的光的光学元件，以产生在光点的移动方向上延伸的形状的光点。 将光点的一部分设定为处理区域，将移动方向上的处理区域的前侧和/或后侧设定为预热区域和/或后加热区域，以及处理对象物 和/或在该区域中加工之后加热。

公开(公告)号：US20160311164A1

公开(公告)日：2016-10-27

申请号：US14760134

申请日：2015-02-27

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Hideaki MIYANO

IPC: B29C67/00 ,  B33Y10/00 ,  B33Y30/00 ,  B05D1/12

CPC classification number: B29C64/329 ,  B05D1/12 ,  B22F3/105 ,  B28B13/02 ,  B29C31/02 ,  B29C64/153 ,  B29C64/165 ,  B29C64/20 ,  B29C64/255 ,  B29C64/343 ,  B29C67/00 ,  B33Y10/00 ,  B33Y30/00

Abstract: A powder is spread in two directions, that is, the advancement and retraction directions of a powder recoater. The powder recoater according to this invention includes a hopper that stores a powder, and 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 is displaced from the center axis of the powder supplier in the radial direction of the powder supplier.

Abstract translation: 粉末在两个方向上扩散，即粉末涂抹器的前进和后退方向。 根据本发明的粉末涂布器包括存储粉末的料斗和具有与料斗的底表面接近或接触的侧表面的圆柱形粉末供应器，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剂中，供给路径的中心轴线在粉末供给体的径向方向上从粉末供给体的中心轴线偏离。

公开(公告)号：US11448578B2

公开(公告)日：2022-09-20

申请号：US16641983

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

IPC: G01N11/14 ,  B33Y30/00 ,  B33Y50/00 ,  B23K26/342 ,  B23K15/00

Abstract: This invention relates to a method of evaluating powder for lamination shaping by stable criteria. In this method, it is evaluated whether powder for lamination shaping can be spread into a uniform powder layer in the lamination shaping, wherein the powder is evaluated using, as a flowability of the powder, an adhesive force of the powder calculated from a failure envelope obtained by a shear test. The shear test is conducted by a powder rheometer, and the adhesive force is obtained from the relationship between a normal stress and a shearing stress at the powder rheometer. If the adhesive force is 0.450 kPa or less, the powder is evaluated to be spread into a uniform powder layer in the lamination shaping. Furthermore, if at least one of that the 50% particle size of the powder obtained by a laser diffraction method is 3 to 250 μm and that the apparent density of the powder is 3.5 g/cm3 or more is satisfied, the powder is evaluated to be spread into a uniform powder layer in the lamination shaping.

公开(公告)号：US20220250158A1

公开(公告)日：2022-08-11

申请号：US17629261

申请日：2020-07-01

Applicant: Technology Research Association for Future Additive Manufacturing ,  Shibaura Machine Co., Ltd.

Inventor： Shimpei FUJIMAKI ,  Yasushi FUKASE

IPC: B22F12/53 ,  B22F12/40 ,  B33Y30/00

Abstract: A nozzle includes a nozzle member includes a first passage, a second passage surrounding the first passage and configured to eject powder and fluid from an end portion, a diffusion room apart from the end portion and configured to supply the powder and the fluid to the second passage, and a supply path to supply the powder and the fluid to the diffusion room. A first inner surface of the nozzle member includes a first curved surface in a conical shape having a diameter decreasing toward the end portion. A second inner surface of the nozzle member includes a second curved surface in a conical shape having a diameter decreasing toward the end portion. The second passage is formed between the first curved surface and the second curved surface. The diffusion room is formed between the first inner surface and the second inner surface.

公开(公告)号：US20220118710A1

公开(公告)日：2022-04-21

申请号：US17419207

申请日：2019-12-12

Applicant: MITSUBISHI HEAVY INDUSTRIES MACHINE TOOL CO., LTD. ,  TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Yoshihito FUJITA ,  Haruhiko NIITANI

IPC: B29C64/393 ,  B29C64/268 ,  B33Y10/00 ,  B33Y50/02

Abstract: A management system is for managing a material of a three-dimensional deposition device that shapes a laminate by irradiation with a light beam and supplying of the material. The management system includes a shape data acquisition unit that acquires shape data of the laminate; a shaping condition setting unit that sets, based on the shape data, a set shaping condition as a shaping condition for shaping the laminate by the three-dimensional deposition device; a shaping simulation execution unit that executes, based on the set shaping condition, a shaping simulation for shaping the laminate with the set shaping condition; and a required material amount acquisition unit that acquires, based on an execution result of the shaping simulation, a required material amount that is an amount of the material required for shaping the laminate by the three-dimensional deposition device.