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：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.