# US 10,500,834 B2 · Three-dimensional laminating and shaping apparatus, control method of three-dimensional laminating and shaping apparatus, and control program of three-dimensional laminating and shaping apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,500,834 B2 - Document ID: US10500834B2 - Status: Granted - Kind: B2 - Application number: 15/117,657 - Filed: 2015-11-13 - Published: 2017-09-21 - Granted: 2019-12-10 - Earliest claimed: 2015-11-13 - Assignees: Technology Research Association for Future Additive Manufacturing - Applicants: Technology Research Association for Future Additive Manufacturing - Inventors: Tetsuyoshi Furukawa - Web page: https://patentgrep.com/patent/US10500834B2 ## CPC - B22F 3/16: in successive or repeated steps - B22F 3/105: by using electric current {other than for infrared radiant energy}, laser radiation or plasma (B22F3/11 takes precedence){; by ultrasonic bonding (B22F3/115 takes precedence)} - B22F 10/28: Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM] - B22F 10/37: of powder bed aspects, e.g. density - B22F 10/80: Data acquisition or data processing - B29C 64/141: using only solid materials - B29C 64/386: Data acquisition or data processing for additive manufacturing - B29C 67/00: Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 - B33Y 10/00: Processes of additive manufacturing - B33Y 30/00: Apparatus for additive manufacturing; Details thereof or accessories therefor - B33Y 50/00: Data acquisition or data processing for additive manufacturing - B33Y 50/02: for controlling or regulating additive manufacturing processes - B22F 12/90: Means for process control, e.g. cameras or sensors - Y02P 10/25: Process efficiency - B22F: WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER (making alloys by powder metallurgy C22C); APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B33Y: ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS ## Abstract The cost required to shape a three-dimensional laminated and shaped object is suppressed. A three-dimensional laminating and shaping apparatus for shaping a three-dimensional laminated and shaped object by irradiating a powder with a high-energy beam includes a laminating and shaping data acquirer that acquires laminating and shaping data to be used for laminating and shaping of the three-dimensional laminated and shaped object, an attribute information acquirer that acquires attribute information of the powder to be used for laminating and shaping of the three-dimensional laminated and shaped object, a model generator that generates, based on the laminating and shaping data and the attribute information, a circuit pattern model for removing electrons from the powder electrically charged by irradiation with the high-energy beam, and a circuit pattern shaping unit that shapes a circuit pattern based on the generated circuit pattern model. ## Claims ### Claim 1 A three-dimensional laminating and shaping apparatus for shaping a three-dimensional laminated and shaped object by irradiating a powder with a high-energy beam, comprising: a laminating and shaping data acquirer that acquires laminating and shaping data to be used for laminating and shaping of the three-dimensional laminated and shaped object; and an attribute information acquirer that acquires attribute information of the powder to be used for laminating and shaping of the three-dimensional laminated and shaped object, wherein the attribute information includes at least one of conductiveness, a particle size, and an electric field strength of the powder; wherein the three-dimensional laminating and shaping apparatus generates, based on the laminating and shaping data and the attribute information, a model of a circuit pattern, wherein the circuit pattern removes electrons from the powder electrically charged by irradiation with the high-energy beam, wherein the circuit pattern is formed as electrical lead wires around the three-dimensional laminated and shaped object, and shapes the three-dimensional laminated and shaped object based on the laminating and shaping data with the circuit pattern based on the generated model. ### Claim 2 (depends on 1) The three-dimensional laminating and shaping apparatus according to claim 1, further comprising: a temperature measurer that measures a temperature of the powder, wherein said three-dimensional laminating and shaping apparatus generates the circuit pattern model based on the temperature of the powder. ### Claim 3 (depends on 2) The three-dimensional laminating and shaping apparatus according to claim 2, wherein said three-dimensional laminating and shaping apparatus is configured to change at least one of the circuit pattern model and a formation density of the circuit pattern model based on a change in the temperature of the powder. ### Claim 4 (depends on 1) The three-dimensional laminating and shaping apparatus according to claim 1, wherein the high-energy beam is an electron beam. ### Claim 5 (depends on 1) The three-dimensional laminating and shaping apparatus according claim 1, wherein the circuit pattern is grounded. ### Claim 6 (depends on 1) The three-dimensional laminating and shaping apparatus according to claim 1, further comprising: a positive potential applier that applies a positive potential to the circuit pattern. ### Claim 7 (depends on 1) The three-dimensional laminating and shaping apparatus according to claim 1, wherein the formation density is a density at which the electric field strength of the powder is smaller than a critical value. ### Claim 8 A control method of a three-dimensional laminating and shaping apparatus for shaping a three-dimensional laminated and shaped object by irradiating a powder with a high-energy beam, comprising: acquiring laminating and shaping data to be used for laminating and shaping of the three-dimensional laminated and shaped object; acquiring attribute information of the powder to be used for laminating and shaping of the three-dimensional laminated and shaped object; generating, based on the laminating and shaping data and the attribute information, a circuit pattern, wherein the circuit pattern removes electrons from the powder to be electrically charged by irradiation with the high-energy beam, wherein the circuit pattern is formed as electrical lead wires around the three-dimensional laminated and shaped object; and shaping the three-dimensional laminated and shaped object based on the laminating and shaping data with the circuit pattern based on the generated model and the three-dimensional laminated and shaped object based on laminating and shaping data. ### Claim 9 A non-transitory computer readable medium storing a control program of a three-dimensional laminating and shaping apparatus for shaping a three-dimensional laminated and shaped object by irradiating a powder with a high-energy beam, the program for causing a computer to execute a method, comprising: acquiring laminating and shaping data to be used for laminating and shaping of the three-dimensional laminated and shaped object; acquiring attribute information of the powder to be used for laminating and shaping of the three-dimensional laminated and shaped object; generating, based on the laminating and shaping data and the attribute information, a model of a circuit pattern, wherein the circuit pattern removes electrons from the powder to be electrically charged by irradiation with the high-energy beam, wherein the circuit pattern is formed as electrical lead wires around the three-dimensional laminated and shaped object; and shaping the three-dimensional laminated and shaped object based on the laminating and shaping data with the circuit pattern based on the generated model and the three-dimensional laminated and shaped object based on laminating and shaping data.