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：US20170368605A1

公开(公告)日：2017-12-28

申请号：US15116566

申请日：2015-12-25

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Yasushi FUKASE

IPC: B22F3/105 ,  B22F3/16

CPC classification number: B22F3/105 ,  B22F3/1055 ,  B22F3/16 ,  B22F7/06 ,  B22F2003/1056 ,  B22F2999/00 ,  B29C64/153 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  Y02P10/295 ,  B22F2207/01

Abstract: A three-dimensional laminated and shaped object having a graded composition is accurately shaped. A three-dimensional laminating and shaping apparatus for shaping a three-dimensional laminated and shaped object having a graded composition by laminating a plurality of kinds of materials includes a material supplier that supplies the materials while executing a scan, an irradiator that irradiates the materials with a beam, and a controller that controls the material supplier. The controller controls the material supplier to supply, to a predetermined scanning area of a material scanning area, a necessary amount of a predetermined material for laminating one layer of the three-dimensional laminated and shaped object at a predetermined number of times.