公开(公告)号：US20240091852A1

公开(公告)日：2024-03-21

申请号：US18518662

申请日：2023-11-24

Applicant: Sodick Co., Ltd.

Inventor： Itaru MATSUMOTO

IPC: B22F3/10 ,  B22F10/28 ,  B22F12/20 ,  B22F12/70 ,  B22F12/90 ,  B33Y40/00 ,  B33Y50/02

CPC classification number: B22F3/1028 ,  B22F10/28 ,  B22F12/20 ,  B22F12/70 ,  B22F12/90 ,  B33Y40/00 ,  B33Y50/02 ,  B22F2998/10 ,  B33Y10/00

Abstract: A method for producing a three-dimensional molded object includes a solidified layer forming step, a cooling step, and a warpage measuring step. The solidified layer forming step is performing a recoating step and a solidifying step and maintaining a solidified layer at a molding temperature which is equal to or more than a martensitic transformation start temperature. The cooling step is cooling the solidified layer from the molding temperature to a cooling temperature which is less than the molding temperature and equal to or less than a martensitic transformation finish temperature. The warpage measuring step is measuring warpage of the solidified layer or warpage of a portion that deforms with a deformation of the solidified layer. The solidified layer forming step and the cooling step are repeated while a difference between the molding temperature and the cooling temperature is changed according to the magnitude of the warpage.

公开(公告)号：US20200023437A1

公开(公告)日：2020-01-23

申请号：US16446898

申请日：2019-06-20

Applicant: Sodick Co., Ltd.

Inventor： Itaru MATSUMOTO

IPC: B22F3/24 ,  B22F3/105 ,  B33Y10/00 ,  B33Y40/00

Abstract: In the solidified layer forming step, at least one solidified layer is formed. In the temperature lowering step, the solidified layer is cooled from the first temperature equal to or higher than a martensitic transformation finish temperature to the second temperature lower than the first temperature and equal to or lower than a martensitic transformation start temperature. In the temperature maintaining step, a temperature of the solidified layer lowered to the second temperature is maintained at a predetermined cutting temperature. In the roughing step, a surface of the solidified layer is processed so as to leave a predetermined processing margin.

公开(公告)号：US20200023436A1

公开(公告)日：2020-01-23

申请号：US16443013

申请日：2019-06-17

Applicant: Sodick Co., Ltd.

Inventor： Itaru MATSUMOTO

IPC: B22F3/24 ,  B33Y10/00 ,  B33Y70/00 ,  B22F3/105

Abstract: A manufacturing method for a three-dimensional molded object includes repeating formation of a material layer and formation of a solidified layer, the material layer being formed by spreading a metal material on a base plate and the solidified layer being formed by irradiating the material layer with a laser beam or an electron beam, thereby molding a solidified body which is a laminated solidified layer on the base plate; and subjecting the base plate and the solidified body after molding to a heat treatment.

公开(公告)号：US20240416425A1

公开(公告)日：2024-12-19

申请号：US18677851

申请日：2024-05-29

Applicant: Sodick Co., Ltd.

Inventor： Itaru MATSUMOTO ,  Tsubasa TAKAYAMA

IPC: B22F12/41 ,  B22F10/50 ,  B22F10/64 ,  B22F12/20 ,  B33Y10/00 ,  B33Y40/20

Abstract: The disclosure provides a method for additive manufacturing, including: a solidified layer forming process, in which a solidified layer is laminated by repeating a process of forming a material layer by supplying a material powder containing a metal material that expands with a tempering treatment, and a process of forming a solidified layer by irradiating the material layer with a laser beam or an electron beam, on a build table adjusted to a manufacturing temperature; and a thermal expansion treatment process, in which each time a predetermined number or a predetermined thickness of the solidified layer is newly formed, the temperature of the solidified layer is raised from the manufacturing temperature to a heating temperature, held for a predetermined time, and then lowered to the manufacturing temperature.

公开(公告)号：US20190308242A1

公开(公告)日：2019-10-10

申请号：US16289838

申请日：2019-03-01

Applicant: Sodick Co., Ltd.

Inventor： Itaru MATSUMOTO

IPC: B22F3/105 ,  B33Y10/00 ,  B33Y40/00

Abstract: The method for producing a three-dimensional molded object comprises a placing step, a molding step, and an upper surface processing step. The placing step is a step of placing a base plate and a mounting plate within a molding region. A first material powder layer is formed on the base plate; and the base plate is fixed to the mounting plate at a central part of the base plate to an extent that the base plate is not displaced. The molding step is a step of laminating sintered layers to form a sintered body. The sintered layers are laminated by repeatedly spreading material powder to form a material powder layer and irradiating the material powder layer with a beam to form the sintered layer. The upper surface processing step is a step of planarizing an upper surface of the sintered body to form a processed surface.

公开(公告)号：US20170355136A1

公开(公告)日：2017-12-14

申请号：US15588699

申请日：2017-05-08

Applicant: Sodick Co., Ltd.

Inventor： Itaru MATSUMOTO

IPC: B29C64/153 ,  B29C64/214 ,  B29K77/00

CPC classification number: B29C64/153 ,  B22F3/1055 ,  B22F2003/1056 ,  B22F2999/00 ,  B29C64/214 ,  B29K2077/00 ,  B33Y30/00 ,  B22F2201/10

Abstract: A three-dimensional (3D) printer includes a powder layer forming device (2) uniformly spreading material powder in a molding space (R) in a chamber (1) to form a powder layer (8), and a laser irradiation device (4) irradiating a laser beam (L) on a predetermined irradiation region of the powder layer to form a sintered layer (9). The powder layer forming device includes a recoater head (23) discharging the contained material powder to the molding space, a blade (31, 33) leveling the discharged material powder to a predetermined thickness, and a holding member (35, 37) holding the blade on the recoater head, wherein the blade is flexible, and the blade and the holding member are nonmagnetic and electrically conductive.