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公开(公告)号：US10315251B2
公开(公告)日：2019-06-11
申请号：US15124601
申请日：2016-03-25
Inventor： Haruhiko Niitani
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.
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公开(公告)号：US11007720B2
公开(公告)日：2021-05-18
申请号：US16159179
申请日：2018-10-12
Inventor： Haruhiko Niitani
IPC: B29C64/393 , B29C64/268 , B29C64/153 , B33Y50/02 , B33Y10/00 , B33Y30/00 , B23K26/342 , B29C64/118 , B22F10/00 , B22F10/10
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.
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Patent Agency Ranking
公开(公告)号：US10456983B2
公开(公告)日：2019-10-29
申请号：US15125499
申请日：2016-03-25
Inventor： Haruhiko Niitani
IPC: B29C67/00 , B29C64/393 , B29C64/268 , B29C64/153 , B33Y50/02 , B33Y10/00 , B33Y30/00 , B23K26/342 , B22F3/105 , B29C64/118
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.
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公开(公告)号：US11027488B2
公开(公告)日：2021-06-08
申请号：US15124624
申请日：2016-03-25
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.
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公开(公告)号：US10162187B2
公开(公告)日：2018-12-25
申请号：US14763151
申请日：2015-03-10
Inventor： Saneyuki Goya , Toshiya Watanabe , Minoru Danno , Yoshihito Fujita , Haruhiko Niitani
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.
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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.
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公开(公告)号：US11020906B2
公开(公告)日：2021-06-01
申请号：US16159072
申请日：2018-10-12
Inventor： Haruhiko Niitani
IPC: B29C64/393 , B29C64/268 , B29C64/153 , B33Y50/02 , B33Y10/00 , B33Y30/00 , B23K26/342 , B29C64/118 , B22F10/00 , B22F10/10
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.
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