公开(公告)号：US20220324175A1

公开(公告)日：2022-10-13

申请号：US17641271

申请日：2020-09-02

Applicant: Shibaura Machine Co., Ltd.

Inventor： Daisuke MORIMATSU ,  Shimpei FUJIMAKI

IPC: B29C64/393 ,  B29C64/268 ,  B29C64/209

Abstract: An additive manufacturing system includes an additive manufacturing unit configured to shape an object including a plurality of layers, a measurement unit configured to measure a state of each of the plurality of layers, and a control unit. The control unit includes a storage unit configured to store reference information based on internal defect information indicating a defect existing inside a sample object shaped by the additive manufacturing unit and including the plurality of layers, based on an electromagnetic wave which has passed through the sample object, and sample measurement information indicating a measurement result of the plurality of layers of the sample object measured by the measurement unit, and an estimation unit configured to estimate whether a defect occurs inside the object, based on measurement information indicating a measurement result of the plurality of layers of the object measured by the measurement unit and the reference information.

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.