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：US20180339457A1

公开(公告)日：2018-11-29

申请号：US15545973

申请日：2016-10-05

Applicant: Technology Research Association For Future Additive Manufacturing

Inventor： Shimpei FUJIMAKI ,  Takahiro FUNAKI ,  Shoichi SATO

IPC: B29C64/386 ,  B29C64/20

Abstract: In three-dimensional laminating and shaping, a three-dimensional laminated and shaped object having a corner portion is accurately shaped. A three-dimensional laminating and shaping apparatus includes a material supplier that supplies a material of a three-dimensional laminated and shaped object onto a shaping table, a light beam irradiator that performs irradiation of a light beam, a controller that controls a scanning direction and scanning speed of the light beam, a shaping model acquirer that acquires a shaping model of the three-dimensional laminated and shaped object, a shaping route decider that decides shaping routes based on the acquired shaping model, an extractor that extracts, from the decided shaping routes, a start point and end point of the shaping routes and a relay point at which a direction of the shaping route changes, and an additional route decider that decides additional routes for at least one of the extracted start point, end point, and relay point. The controller controls the scanning direction and scanning speed of the light beam based on the shaping routes and the additional routes.

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：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.