公开(公告)号：US10780634B2

公开(公告)日：2020-09-22

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 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/153 ,  B29C64/371 ,  B22F3/105 ,  B22F3/24 ,  B29C64/20 ,  B29C64/268 ,  B29C64/165 ,  B29C64/205 ,  B29C64/264

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：US20190091926A1

公开(公告)日：2019-03-28

申请号：US16131391

申请日：2018-09-14

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 ,  B29C64/165 ,  B33Y30/00

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：US20190291211A1

公开(公告)日：2019-09-26

申请号：US16359384

申请日：2019-03-20

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

Inventor： Satoshi TSUNO ,  Hiroshi Ohno ,  Mitsuo Sasaki ,  Tomohiko Yamada ,  Yasutomo Shiomi ,  Shimpei Fujimaki

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

Abstract: According to an embodiment, a nozzle of an additive manufacturing device includes a first inner surface that defines a first path through which an energy ray passes; and a second inner surface that defines a second path that extends along the first path and through which gas and a powder material pass. The first path opens to a leading end of the nozzle. The second path opens to near or around the first path. At least part of the second inner surface includes a first region having a larger friction coefficient for the powder material than the friction coefficient of at least one of the first inner surface and an outer peripheral surface of the leading end.

公开(公告)号：US11534968B2

公开(公告)日：2022-12-27

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 ,  B33Y10/00 ,  B29C64/268 ,  B22F3/24 ,  B29C64/264 ,  B29C64/205 ,  B29C64/20 ,  B29C64/371 ,  B22F12/00 ,  B22F10/10 ,  B22F10/00 ,  B33Y30/00

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：US10220473B2

公开(公告)日：2019-03-05

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 ,  B23K26/144 ,  B33Y30/00 ,  B33Y40/00 ,  B23K26/342 ,  B05C11/10 ,  B29C64/209

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.