公开(公告)号：US20180162053A1

公开(公告)日：2018-06-14

申请号：US15123960

申请日：2016-03-25

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Yoshihito FUJITA ,  Haruhiko NIITANI

IPC: B29C64/393 ,  B29C64/268 ,  B29C64/153 ,  B22F3/105 ,  B23K26/342 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

CPC classification number: B29C64/393 ,  B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1057 ,  B23K26/342 ,  B29C64/153 ,  B29C64/268 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/00 ,  B33Y50/02 ,  Y02P10/295

Abstract: A high-precision three-dimensional laminated and shaped object is shaped. A three-dimensional laminating and shaping apparatus includes a material ejector that ejects a material of the three-dimensional laminated and shaped object onto a shaping table. The three-dimensional laminating and shaping apparatus also includes a light beam irradiator that irradiates the ejected material with a light beam. Furthermore, the three-dimensional laminating and shaping apparatus includes a light beam path controller that is arranged on a light beam path of the light beam, detects a material focus position on the shaping table, and controls the light beam path of the light beam based on the detected material focus position. The light beam path controller aligns the light beam focus position with respect to the material focus position.

公开(公告)号：US20220118710A1

公开(公告)日：2022-04-21

申请号：US17419207

申请日：2019-12-12

Applicant: MITSUBISHI HEAVY INDUSTRIES MACHINE TOOL CO., LTD. ,  TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Yoshihito FUJITA ,  Haruhiko NIITANI

IPC: B29C64/393 ,  B29C64/268 ,  B33Y10/00 ,  B33Y50/02

Abstract: A management system is for managing a material of a three-dimensional deposition device that shapes a laminate by irradiation with a light beam and supplying of the material. The management system includes a shape data acquisition unit that acquires shape data of the laminate; a shaping condition setting unit that sets, based on the shape data, a set shaping condition as a shaping condition for shaping the laminate by the three-dimensional deposition device; a shaping simulation execution unit that executes, based on the set shaping condition, a shaping simulation for shaping the laminate with the set shaping condition; and a required material amount acquisition unit that acquires, based on an execution result of the shaping simulation, a required material amount that is an amount of the material required for shaping the laminate by the three-dimensional deposition device.

公开(公告)号：US20180133958A1

公开(公告)日：2018-05-17

申请号：US15124624

申请日：2016-03-25

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Haruhiko NIITANI ,  Yoshihito FUJITA

IPC: B29C64/245 ,  B29C64/153 ,  B29C64/268 ,  B33Y10/00 ,  B33Y30/00 ,  B23K26/342 ,  B23K26/70 ,  B33Y50/02 ,  B29C64/393

CPC classification number: B29C64/245 ,  B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1057 ,  B22F2999/00 ,  B23K26/144 ,  B23K26/342 ,  B23K26/703 ,  B29C64/153 ,  B29C64/268 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  Y02P10/295 ,  B22F2203/11 ,  B22F2203/03

Abstract: A rise in temperature of a work (laminating base material) is controlled and the occurrence of thermal deformation is suppressed. There is provided a three-dimensional laminating and shaping apparatus having the following arrangement. That is, the three-dimensional laminating and shaping apparatus includes a material ejector that ejects a material of a three-dimensional laminated and shaped object onto a work on which the three-dimensional laminated and shaped object is shaped. The three-dimensional laminating and shaping apparatus includes a light beam irradiator that irradiates the ejected material with a light beam. Furthermore, the three-dimensional laminating and shaping apparatus includes a jig to which the work is detachably attached. The jig includes a channel supplied with a cooling medium for cooling the work.

公开(公告)号：US20170038596A1

公开(公告)日：2017-02-09

申请号：US14763151

申请日：2015-03-10

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Saneyuki GOYA ,  Toshiya WATANABE ,  Minoru DANNO ,  Yoshihito FUJITA ,  Haruhiko NIITANI

IPC: G02B27/14 ,  G01J1/04 ,  G02B17/00

CPC classification number: G02B27/144 ,  B23K26/032 ,  B23K26/042 ,  B23K26/046 ,  B23K26/0643 ,  B23K26/36 ,  G01J1/0418 ,  G02B5/205 ,  G02B27/108

Abstract: This invention is directed to attenuating a beam output without changing the beam position and the beam diameter. A high-output optical attenuator includes a first reflector that totally reflects incident light and causes first reflected light serving as reflected light of the incident light to enter a second reflecting portion, a second reflector that reflects the first reflected light and causes second reflected light serving as reflected light of the first reflected light to enter a third reflecting portion, a third reflector that reflects the second reflected light and causes third reflected light serving as reflected light of the second reflected light to enter a fourth reflecting portion, and a fourth reflector that reflects the third reflected light as fourth reflected light having the same optical axis as the optical axis of the incident light. At least two of the second reflector, the third reflector, and the fourth reflector are half mirrors.

Abstract translation: 本发明涉及在不改变光束位置和光束直径的情况下衰减光束输出。 高输出光衰减器包括：全反射入射光的第一反射器，并且使作为入射光的反射光的第一反射光进入第二反射部;反射第一反射光的第二反射体， 作为第一反射光的入射到第三反射部的反射光，反射第二反射光并使第三反射光作为第二反射光的反射光的第三反射光入射到第四反射部的第三反射器，以及第四反射器， 将第三反射光反射为具有与入射光的光轴相同的光轴的第四反射光。 第二反射器，第三反射器和第四反射器中的至少两个是半反射镜。