公开(公告)号：US11027488B2

公开(公告)日：2021-06-08

申请号：US15124624

申请日：2016-03-25

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Haruhiko Niitani ,  Yoshihito Fujita

IPC: B29C67/00 ,  B29C64/245 ,  B33Y30/00 ,  B33Y50/02 ,  B23K26/144 ,  B22F10/20 ,  B33Y10/00 ,  B23K26/342 ,  B23K26/70 ,  B29C64/153 ,  B29C64/393 ,  B29C64/268 ,  B22F10/10

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：US10162187B2

公开(公告)日：2018-12-25

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 ,  B23K26/36 ,  G02B27/10 ,  G01J1/04 ,  G02B5/20

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.

公开(公告)号：US12090707B2

公开(公告)日：2024-09-17

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: G06F30/20 ,  B29C64/268 ,  B29C64/393 ,  B33Y10/00 ,  B33Y50/02

CPC classification number: 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：US09863803B2

公开(公告)日：2018-01-09

申请号：US14763153

申请日：2015-03-10

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Yoshihito Fujita ,  Saneyuki Goya

IPC: G02B6/36 ,  G01J1/04 ,  G01J1/02 ,  B23K26/03 ,  B23K26/14

CPC classification number: G01J1/0425 ,  B23K26/032 ,  B23K26/1462 ,  G01J1/0266 ,  G01J1/0422 ,  G02B6/3624

Abstract: This invention is directed to reliably condensing weak light by a sensor arranged at a position spaced apart from a processing position. The optical processing head includes a light guide that guides light for irradiating a processing position. The optical processing head further includes a light transmitter that has one end arranged near the distal end of the light guide and the other end connected to a photodetector, condenses reflected light traveling from the processing position, and transmits it to the photodetector. The optical processing head includes at least one light transmitter as its feature.