公开(公告)号：US20210039314A1

公开(公告)日：2021-02-11

申请号：US17072227

申请日：2020-10-16

Applicant: Technology Research Association for Future Additive Manufacturing ,  Kabushiki Kaisha Toshiba ,  Toshiba Kikai Kabushiki Kaisha

Inventor： Hiroshi OHNO ,  Satoshi TSUNO ,  Mitsuo SASAKI ,  Tomohiko YAMADA ,  Yasutomo SHIOMI ,  Shimpei FUJIMAKI

IPC: B29C64/209 ,  B29C64/153 ,  B29C64/165

Abstract: A nozzle according to one embodiment has an inner surface and an outer surface, and is provided with a first passage through which an energy ray passes, and a second passage that is provided between the inner surface and the outer surface, and through which powder and fluid pass. The second passage includes a second open end on one end thereof in a first direction. A first surface that is one of the inner surface and the outer surface includes a first edge on one end thereof in the first direction. A second surface that is the other one of those includes a second edge on one end thereof in the first direction, and is distanced from the first edge toward the first direction. The fluid ejected from the second open end flows along the second surface, and separates at the second edge.

公开(公告)号：US20160368087A1

公开(公告)日：2016-12-22

申请号：US14888582

申请日：2015-02-20

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Hiroshi OHNO ,  Tetsuo SAKAI ,  Mitsuo SASAKI ,  Kazuyuki Masukawa ,  Takashi OBARA ,  Yuji SASAKI ,  Satoshi TSUNO

IPC: B23K26/06 ,  G02B27/30 ,  G02B27/40

CPC classification number: B23K26/0648 ,  B23K26/0665 ,  B23K26/342 ,  G02B27/0927 ,  G02B27/0955 ,  G02B27/30 ,  G02B27/40

Abstract: An optical processing head capable of reducing the energy loss at the time of optical processing is disclosed. The optical processing head includes a first optical element that converts light emitted by a light source into first parallel light, a second optical element that is arranged downstream of the first optical element and converts the first parallel light into first divergent light, a third optical element that is arranged downstream of the second optical element and converts the first divergent light into second parallel light, and a fourth optical element that is arranged downstream of the third optical element and converts the second parallel light into convergent light which is condensed on the processing surface side.

Abstract translation: 公开了能够降低光学处理时的能量损失的光学处理头。 光学处理头包括将由光源发射的光转换成第一平行光的第一光学元件，布置在第一光学元件的下游并将第一平行光转换为第一发散光的第二光学元件，第三光学元件 其布置在所述第二光学元件的下游并将所述第一发散光转换为第二平行光;以及第四光学元件，设置在所述第三光学元件的下游，并将所述第二平行光转换成会聚光，所述会聚光在所述处理表面 侧。

公开(公告)号：US20180147666A1

公开(公告)日：2018-05-31

申请号：US15122938

申请日：2016-03-15

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

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

IPC: B23K26/342 ,  B23K26/03 ,  B23K26/046 ,  B23K26/06 ,  B23K26/067 ,  B23K26/144 ,  B23K26/14

CPC classification number: B23K26/342 ,  B23K26/032 ,  B23K26/046 ,  B23K26/0643 ,  B23K26/0648 ,  B23K26/0673 ,  B23K26/144 ,  B23K26/1464 ,  B33Y30/00 ,  B33Y40/00

Abstract: An overall apparatus is downsized by reducing the size of a light beam branching structure. There is provided an optical processing head including an optical element group that guides a processing light beam from a light source to a process surface, and a light beam branching portion that branches reflected light of the processing light beam from the process surface and an observation light beam for observing a state of the process surface. The light beam branching portion is arranged on a light beam path of the processing light beam, and includes, between the optical element group and the process surface, a half mirror that guides the observation light beam to an observation optical system.

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：US20190084226A1

公开(公告)日：2019-03-21

申请号：US16132683

申请日：2018-09-17

Applicant: Technology Research Association for Future Additive Manufacturing ,  Kabushiki Kaisha Toshiba ,  Toshiba Kikai Kabushiki Kaisha

Inventor： Hiroshi OHNO ,  Satoshi TSUNO ,  Mitsuo SASAKI ,  Tomohiko YAMADA ,  Yasutomo SHIOMI ,  Shimpei FUJIMAKI

IPC: B29C64/209 ,  B29C64/153 ,  B29C64/371

Abstract: A nozzle according to one embodiment includes a nozzle unit and a guide surface. A first passage, a second passage, and the guide surface are provided to the nozzle unit. The first passage has a first open end. The second passage has a second open end, and a section that is positioned upstream of the second open end and that extends in a second direction. The guide surface has an edge in a first direction. The guide surface is exposed on the outer side at the edge, is along a third direction at the edge, the third direction being a direction becoming more distanced from an axis than the second direction does, as the third direction is extended further toward the first direction. A flow of fluid ejected from the second open end follows the guide surface, and becomes separated from the nozzle unit at the edge.

公开(公告)号：US20170259378A1

公开(公告)日：2017-09-14

申请号：US15120062

申请日：2015-11-11

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Hiroshi OHNO ,  Mitsuo SASAKI ,  Yuji SASAKI ,  Satoshi TSUNO ,  Go OBARA ,  Tomohiko YAMADA ,  Yasutomo SHIOMI ,  Takashi OBARA

IPC: B23K26/14 ,  B05C11/10 ,  B33Y40/00 ,  B33Y30/00 ,  B23K26/342 ,  B23K26/144

CPC classification number: B23K26/1476 ,  B05C11/1036 ,  B23K26/1435 ,  B23K26/1438 ,  B23K26/144 ,  B23K26/1462 ,  B23K26/342 ,  B29C64/209 ,  B33Y30/00 ,  B33Y40/00

Abstract: Ejection and stop of a powder flow are switched while maintaining a once generated steady flow without stopping it. A processing nozzle includes a supply source of a fluid containing a powder, a first channel through which the fluid supplied from the supply source passes, a second channel that supplies the fluid to an ejection port of the nozzle, a third channel that releases the fluid outside the nozzle, and a switch that causes the first channel and the second channel to communicate with each other when supplying the fluid to the ejection port, and causes the first channel and the third channel to communicate with each other when not supplying the fluid to the ejection port.

公开(公告)号：US20170087666A1

公开(公告)日：2017-03-30

申请号：US14889369

申请日：2015-03-20

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Mitsuo SASAKI ,  Hiroshi OHNO

IPC: B23K26/144 ,  B29C35/08 ,  B23K26/03 ,  B23K26/06 ,  B23K26/70

CPC classification number: B23K26/144 ,  B22F3/105 ,  B22F3/1055 ,  B22F2003/1056 ,  B22F2999/00 ,  B23K26/032 ,  B23K26/0665 ,  B23K26/702 ,  B29C35/0805 ,  B29C64/153 ,  B29C64/209 ,  B29C67/00 ,  B29C2035/0838 ,  B29K2105/251 ,  B33Y30/00 ,  B33Y50/02 ,  Y02P10/295 ,  B22F3/004

Abstract: This specification discloses a processing nozzle for efficiently performing supply of a powder serving as a material used for processing using an energy line. The processing nozzle includes a powder ejector that ejects a powder serving as a processing material toward a molten pool formed on a process surface by an energy line. The processing nozzle further includes an adjuster that adjusts, in accordance with the shape of the molten pool, the shape and/or position of a powder spot formed by the powder ejector.

公开(公告)号：US20170050198A1

公开(公告)日：2017-02-23

申请号：US14889280

申请日：2015-02-25

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

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

IPC: B05B1/24 ,  B23K26/342 ,  B23K26/14 ,  B22F3/105

CPC classification number: B05B1/24 ,  B22F3/1055 ,  B22F2003/1056 ,  B23K26/144 ,  B23K26/1476 ,  B23K26/342 ,  B29C64/153 ,  B29C64/20 ,  B33Y30/00 ,  B33Y40/00 ,  Y02P10/295

Abstract: An optical processing nozzle that homogeneously supplies a fluid to a processing surface in optical processing is provided. The optical processing nozzle includes a beam path that is arranged so that a beam can pass through the beam path toward a processing surface in order to perform processing using a beam guided from a light source, and a channel structure that is arranged around the beam path and is configured to eject a fluid toward the processing surface. The channel structure includes an inflow port through which the fluid flows, at least two passage holes through which the fluid flowing from the inflow port passes, a channel that guides the fluid from the inflow port to the passage holes, and an ejection port from which the fluid having passed through the at least two passage holes is ejected toward the processing surface. The at least two passage holes are arranged to be spatially symmetrical with respect to the inflow port, and the ejection port is arranged to be spatially symmetrical with respect to the optical axis of a beam coming out from the beam path.

Abstract translation: 提供了一种在光学处理中将流体均匀地供应到处理表面的光学加工喷嘴。 光学处理喷嘴包括光束路径，其布置成使得光束可以通过光束路径朝向处理表面，以便使用从光源引导的光束进行处理，以及布置在光束路径周围的通道结构 并且被配置为朝向处理表面喷射流体。 通道结构包括流体流过的流入口，流体从流入口流动的流体通过的至少两个通过孔，将流体从流入口引导到通道的通道， 已经通过至少两个通道孔的流体朝向处理表面喷出。 至少两个通孔设置成相对于流入口在空间上对称，并且喷射口被布置成相对于从光束路径出来的光束的光轴在空间上对称。

公开(公告)号：US20170186143A1

公开(公告)日：2017-06-29

申请号：US14889361

申请日：2015-03-20

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

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

IPC: G06T7/00 ,  G02B27/14 ,  G06T7/60 ,  B23K26/342 ,  B29C67/00 ,  B23K26/70 ,  B22F3/00 ,  B33Y30/00 ,  B33Y50/02 ,  G01B11/27 ,  B23K26/03

CPC classification number: G06T7/001 ,  B22F3/008 ,  B23K26/032 ,  B23K26/0643 ,  B23K26/0665 ,  B23K26/0861 ,  B23K26/144 ,  B23K26/1464 ,  B23K26/342 ,  B23K26/703 ,  B29C64/20 ,  B29C64/386 ,  B29C67/00 ,  B33Y30/00 ,  B33Y50/02 ,  G01B11/272 ,  G02B27/144 ,  G06T7/60 ,  G06T2207/30164

Abstract: This specification discloses an optical processing head including a light guide portion that guides, to a process surface, a ray for processing. The light guide portion is further configured to guide, to the process surface, a ray for inspection different in wavelength from the ray for processing. The optical processing head further includes an inspection portion that inspects the state of the process surface based on reflected light of the ray for inspection reflected by the process surface. With the optical processing head, the state of the process surface can be easily inspected even during optical processing.

公开(公告)号：US20170045462A1

公开(公告)日：2017-02-16

申请号：US14888281

申请日：2015-03-10

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

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

IPC: G01N21/94 ,  G02B5/08 ,  G02B19/00 ,  G02B27/00

CPC classification number: G01N21/94 ,  B23K26/03 ,  B23K26/0643 ,  B23K26/0648 ,  B23K26/1476 ,  B23K26/21 ,  B23K26/707 ,  G01N21/15 ,  G01N21/718 ,  G01N21/954 ,  G01N2021/1757 ,  G02B5/08 ,  G02B19/0052 ,  G02B19/0076 ,  G02B27/0006

Abstract: An optical processing head that detects a trouble of an optical processing head that will be generated at the time of optical processing before the trouble occurs is disclosed. The optical processing head that performs processing by condensing, on a process surface, a ray emitted by a light source for processing includes a cylindrical housing that surrounds a ray for processing emitted by the light source for processing, a ray emitter for inspection that is incorporated in the cylindrical housing and arranged outside the path of the ray for processing, and a light receiver that is incorporated in the cylindrical housing, arranged outside the path of the ray for processing, and receives a ray for inspection emitted by the ray emitter for inspection. The contamination of the inner surface of the cylindrical housing or the concentration of a scattering object flowing into the cylindrical housing is inspected by using a signal acquired from the light receiver.

Abstract translation: 公开了一种光学处理头，其检测在故障发生之前在光学处理时将产生的光学处理头的故障。 通过在处理表面上凝结由加工用光源发出的射线来进行处理的光学处理头包括：圆筒状壳体，其包围由用于处理的光源发出的处理用的射线，用于检查用的射线发射体， 在圆柱形壳体中并且布置在用于处理的光线的路径外部，并且被配置在圆柱形壳体中的光接收器，布置在用于处理的光线的路径外部，并且接收由射线发射器检查的射线用于检查 。 通过使用从光接收器获取的信号来检查圆柱形壳体的内表面的污染或流入圆柱形壳体中的散射物体的集中。