公开(公告)号：US20180169951A1

公开(公告)日：2018-06-21

申请号：US15125499

申请日：2016-03-25

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Haruhiko NIITANI

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

Abstract: A three-dimensional laminating and shaping apparatus capable of measuring the quality of a three-dimensional laminated and shaped object in real time during shaping of the three-dimensional laminated and shaped object includes a material ejector that ejects the material of the three-dimensional laminated and shaped object onto a shaping table on which the three-dimensional laminated and shaped object is shaped, a light beam irradiator that irradiates the ejected material with a light beam, a data acquirer that acquires monitoring data used to monitor a shaping state of the three-dimensional laminated and shaped object during shaping of the three-dimensional laminated and shaped object, and a shaping quality estimator that estimates shaping quality of the three-dimensional laminated and shaped object based on the monitoring data.

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：US20180141121A1

公开(公告)日：2018-05-24

申请号：US15124601

申请日：2016-03-25

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Haruhiko NIITANI

IPC: B22F3/105 ,  B22F3/24 ,  G01J5/00 ,  G06T7/40

CPC classification number: B22F3/1055 ,  B22F3/24 ,  B22F2003/1057 ,  B22F2003/247 ,  B22F2203/03 ,  B22F2203/11 ,  B22F2998/10 ,  B22F2999/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  G01J5/004 ,  G01J2005/0077 ,  G06T7/40 ,  Y02P10/295

Abstract: A high-precision three-dimensional laminated and shaped object is shaped based on a captured image. A three-dimensional laminating and shaping apparatus includes a material ejector that ejects a material of a three-dimensional laminated and shaped object onto a shaping table, a light beam irradiator that irradiates the ejected material with a light beam, an image capturer that captures a molten pool formed by irradiating the ejected material with the light beam, a scanning direction determiner that determines a scanning direction of the light beam with respect to a shaped object based on a change in a position of the shaping table, a detector that detects the molten pool based on an image captured by the image capturer and the scanning direction, and a shaping controller that controls at least one of an output of the light beam and a scanning speed of the light beam based on the detected molten pool.

公开(公告)号：US20210387265A1

公开(公告)日：2021-12-16

申请号：US17426845

申请日：2019-12-13

Applicant: Mitsubishi Heavy Industries Machine Tool Co., Ltd. ,  Technology Research Association for Future Additive Manufacturing

Inventor： Haruhiko NIITANI ,  Tomohiro WAKANA

IPC: B22F12/44 ,  B22F10/28 ,  B22F12/53 ,  B33Y30/00

Abstract: A surface processing device, a surface processing method, and a three-dimensional deposition device are provided. Included are: a powder passage serving as a powder supply unit, which supplies a powder toward a working surface of an object to be processed; and a laser path serving as a light irradiation unit, which irradiates the powder before reaching the object to be processed with a light beam. An irradiation position of the light beam and an injection position of the powder on the working surface are offset.

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。

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：US20190047229A1

公开(公告)日：2019-02-14

申请号：US16159179

申请日：2018-10-12

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Haruhiko NIITANI

IPC: B29C64/393 ,  B33Y30/00 ,  B23K26/342 ,  B33Y10/00 ,  B29C64/153 ,  B29C64/268

Abstract: A three-dimensional laminating and shaping apparatus capable of measuring the quality of a three-dimensional laminated and shaped object in real time during shaping of the three-dimensional laminated and shaped object includes a material ejector that ejects the material of the three-dimensional laminated and shaped object onto a shaping table on which the three-dimensional laminated and shaped object is shaped, a light beam irradiator that irradiates the ejected material with a light beam, a data acquirer that acquires monitoring data used to monitor a shaping state of the three-dimensional laminated and shaped object during shaping of the three-dimensional laminated and shaped object, and a shaping quality estimator that estimates shaping quality of the three-dimensional laminated and shaped object based on the monitoring data.

公开(公告)号：US20180141159A1

公开(公告)日：2018-05-24

申请号：US15125454

申请日：2016-03-25

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Haruhiko NIITANI ,  Satoru AKAMA ,  Tomohiro WAKANA

IPC: B23K26/342 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B23K28/02

CPC classification number: B23K26/342 ,  B22F3/1055 ,  B22F2003/1056 ,  B23K28/02 ,  B29C64/106 ,  B29C64/194 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  Y02P10/295

Abstract: The shaping precision is improved without performing finishing processing. A three-dimensional laminating and shaping apparatus includes a material ejector that ejects a material of a three-dimensional laminated and shaped object onto a shaping table on which the three-dimensional laminated and shaped object is shaped, a light beam irradiator that irradiates the ejected material with a light beam, a cutter that cuts a bead formed when the material irradiated with the light beam is melted and solidified, and a controller that controls ejection of the material by the material ejector, irradiation with the light beam by the light beam irradiator, and cutting of the bead by the cutter. The cutter cuts an upper surface of the bead by a dimension which is smaller than a laminating height and is ½ or less of a bead thickness.

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.