Patents by Inventor Nobuyuki Sumi
Nobuyuki Sumi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20230390869Abstract: An additive manufactured object is a stack including a first metal layer made of a first metallic material and a second metal layer that includes second dot beads made of a second metallic material. The additive manufactured object includes an intermediate layer between the first and second metal layers. The intermediate layer includes a first structural part as a structure made of the first metallic material and a second structural part as a structure made of the second metallic material. The first and second structural parts engage each other in a unit structure, and an arrangement of the unit structures arranged in the intermediate layer has translational symmetry in a plane perpendicular to a stacked direction of the first and second metal layers. The intermediate layer includes, at a junction interface between the first and the second structural parts, an intermetallic compound layer including an intermetallic compound.Type: ApplicationFiled: March 19, 2021Publication date: December 7, 2023Applicant: Mitsubishi Electric CorporationInventors: Takafumi FUJII, Satoshi HATTORI, Nobuyuki SUMI
-
Publication number: 20230390865Abstract: An additive manufacturing apparatus produces a shaped article by adding a material melted by emission of a beam, to a workpiece. The additive manufacturing apparatus includes a machining head that emits the beam to the workpiece, a feed unit that feeds the material to the workpiece, and a numerical control device, which is a control unit that determines a machining path along which the machining head is caused to move with respect to the workpiece, and outputs a command to move the machining head. The control unit outputs a command to move the machining head along the machining path obtained by correction performed based on a moving direction of the machining head with respect to the workpiece.Type: ApplicationFiled: February 24, 2021Publication date: December 7, 2023Applicant: Mitsubishi Electric CorporationInventors: Nobuyuki SUMI, Shun KAYASHIMA, Kenji IRIGUCHI, Seiji UOZUMI
-
Publication number: 20230201964Abstract: An additive manufacturing apparatus manufactures a shaped object by stacking a bead that is a solidified product of a filler metal caused to be melted. The additive manufacturing apparatus includes: a feeding unit that feeds the filler metal to a workpiece; a beam source that outputs a beam for melting the filler metal that is fed; and a position calculation unit that calculates a tip position of the filler metal, the tip position being a position where a temperature reaches a melting point of the filler metal by irradiation with the beam, on the basis of a feeding speed of the filler metal to be fed to the workpiece and beam power from the beam source.Type: ApplicationFiled: November 17, 2020Publication date: June 29, 2023Applicant: Mitsubishi Electric CorporationInventors: Shun KAYASHIMA, Nobuyuki SUMI, Seiji UOZUMI
-
Patent number: 11654510Abstract: An NC device that is a numerical control device controls an additive manufacturing apparatus. The additive manufacturing apparatus performs modeling by application of a melted material. The NC device includes a monitoring unit that monitors occurrence of a drop caused by a material after being melted remaining on the material before being melted, and a command generating unit that generates commands for causing the additive manufacturing apparatus to remove the drop that has occurred.Type: GrantFiled: October 25, 2019Date of Patent: May 23, 2023Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Nobuyuki Sumi, Shun Kayashima, Satoshi Hattori, Seiji Uozumi
-
Publication number: 20230101500Abstract: An additive manufacturing path generation apparatus includes: a formation path generation unit that divides an additive manufacturing object into layers that are units of formation of the additive manufacturing object such that a formation height of a bead that forms the layers does not exceed an upper limit and generates formation paths that are paths for formation of the divided layers from layer definition information and a formation path surface, the layer definition information defining division of the additive manufacturing object into the layers, the formation path surface being a surface restricting positions of the formation paths; and a formation path correction unit that corrects the formation paths to a formation path that causes a plurality of layers to be partially formed in a collective manner while maintaining the formation height within a range between the upper limit and a lower limit.Type: ApplicationFiled: March 19, 2020Publication date: March 30, 2023Applicant: Mitsubishi Electric CorporationInventors: Kenji IRIGUCHI, Nobuhiro SHINOHARA, Nobuyuki SUMI, Shinji FUJISHIRO
-
Publication number: 20230041863Abstract: An NC device as a numerical control device controls an additive manufacturing apparatus for producing an object by layering, on a workpiece, a material melted by being irradiated with a beam. The NC device includes: a feature quantity extracting unit that extracts, from image data, a feature quantity for determining a welding state that is a state where a molten material is added to the workpiece; and a process map creating unit that creates a process map in which a shape of the object and a layering condition are associated with each other. The layering condition is selected from among a plurality of layering conditions on the basis of a result of determination of the welding state, and includes at least one of beam intensity and a supply amount of a material.Type: ApplicationFiled: March 6, 2020Publication date: February 9, 2023Applicant: Mitsubishi Electric CorporationInventors: Seiji UOZUMI, Nobuhiro SHINOHARA, Nobuyuki SUMI
-
Patent number: 11480947Abstract: A control information generation device generates control information for controlling an additive manufacturing apparatus that manufactures a layer shape using a bead that is a manufactured object formed by adding a molten processing material to a target surface while moving a processing position along a manufacturing path, and manufactures a three-dimensional shape in which the layer shapes are stacked. The device includes: a bead width correction unit that obtains a corrected width on the basis of the manufacturing path and a reference width of a cross section of the bead, the corrected width being a width of the cross section for allowing the beads to be adjacent to each other without overlapping; a path correction unit that obtains a corrected path on the basis of the manufacturing path and the corrected width; and a control information output unit that outputs control information indicating the corrected path and the corrected width.Type: GrantFiled: June 14, 2019Date of Patent: October 25, 2022Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Kenji Iriguchi, Nobuhiro Shinohara, Daiji Morita, Nobuyuki Sumi, Shun Kayashima
-
Publication number: 20220324057Abstract: An additive manufacturing apparatus that forms an object by repeating additive machining of melting a machining material and adding, onto a workpiece, the machining material solidified includes: a height measurement unit that measures a height of the object formed at a machining position; and a control unit that controls a machining condition for adding the machining material to the machining position on the basis of a measurement result provided by the height measurement unit.Type: ApplicationFiled: August 7, 2019Publication date: October 13, 2022Applicant: Mitsubishi Electric CorporationInventors: Shigeru TAKUSHIMA, Daiji MORITA, Nobuyuki SUMI, Satoshi HATTORI, Takafumi FUJII, Shun KAYASHIMA
-
Publication number: 20220266378Abstract: An NC device that is a numerical control device controls an additive manufacturing apparatus. The additive manufacturing apparatus performs modeling by application of a melted material. The NC device includes a monitoring unit that monitors occurrence of a drop caused by a material after being melted remaining on the material before being melted, and a command generating unit that generates commands for causing the additive manufacturing apparatus to remove the drop that has occurred.Type: ApplicationFiled: October 25, 2019Publication date: August 25, 2022Applicant: Mitsubishi Electric CorporationInventors: Nobuyuki SUMI, Shun KAYASHIMA, Satoshi HATTORI, Seiji UOZUMI
-
Patent number: 11422540Abstract: A process decision support device includes: a machining performance data storage unit that stores machining performance data indicating machining performance of each of a plurality of machining devices including a machining device that adds material and a machining device that removes material; a process pattern generation unit that refers to the machining performance data and sequences and allocates machining steps performed by a combination of any of the plurality of machining devices to generate a process pattern as a combination of the machining steps with which a product is manufacturable; and an output unit that outputs content of the process pattern generated by the process pattern generation unit.Type: GrantFiled: June 7, 2018Date of Patent: August 23, 2022Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Nobuyuki Sumi, Shun Kayashima, Kenji Iriguchi, Seiji Uozumi
-
Patent number: 11351736Abstract: An NC device, which is a numerical control device, includes: a program analyzing unit that analyzes a machining program to obtain a movement path along which to move a supply position of a material on a workpiece; a storage temperature extracting unit that extracts, from data on surface temperature of the workpiece, storage temperature in an area including the movement path on the workpiece; a layering volume calculating unit that calculates a volume of a layer forming an object on the basis of a relation between the storage temperature and a volume of the material that solidifies at the storage temperature in a given time; and a layering shape changing unit that changes a shape of the layer on the basis of the volume of the layer.Type: GrantFiled: June 25, 2019Date of Patent: June 7, 2022Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Seiji Uozumi, Nobuhiro Shinohara, Daiji Morita, Nobuyuki Sumi
-
Patent number: 11331755Abstract: An additive manufacturing apparatus includes a laser oscillator that is a beam source that outputs a beam, and a rotary motor that is a driving unit that changes the relative positions of a material fed from a wire spool that is a supply source of a wire that is the material and an object to be machined. The driving unit is capable of performing first driving for feeding the material from the supply source toward the object to be machined and second driving for pulling back the fed material to the supply source, and switches from the first driving to the second driving on the basis of a machining program.Type: GrantFiled: October 24, 2018Date of Patent: May 17, 2022Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Satoshi Hattori, Takashi Hashimoto, Nobuyuki Sumi
-
Publication number: 20220143928Abstract: An NC device, which is a numerical control device, includes: a program analyzing unit that analyzes a machining program to obtain a movement path along which to move a supply position of a material on a workpiece; a storage temperature extracting unit that extracts, from data on surface temperature of the workpiece, storage temperature in an area including the movement path on the workpiece; a layering volume calculating unit that calculates a volume of a layer forming an object on the basis of a relation between the storage temperature and a volume of the material that solidifies at the storage temperature in a given time; and a layering shape changing unit that changes a shape of the layer on the basis of the volume of the layer.Type: ApplicationFiled: June 25, 2019Publication date: May 12, 2022Applicant: Mitsubishi Electric CorporationInventors: Seiji UOZUMI, Nobuhiro SHINOHARA, Daiji MORITA, Nobuyuki SUMI
-
Patent number: 11257296Abstract: A display system displays the progress of processing in an additive manufacturing device. The additive manufacturing device manufactures an object with a three-dimensional shape by processing of adding material on the basis of CAD data that is design data. The display system includes an obtaining unit to obtain position data that indicates the present position of a processing point where the processing is performed. The display system includes a display unit to display a trace of the processing point superimposed over the three-dimensional shape based on the design data.Type: GrantFiled: October 18, 2018Date of Patent: February 22, 2022Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Nobuyuki Sumi, Shun Kayashima, Kenji Iriguchi, Seiji Uozumi
-
Patent number: 11249460Abstract: A numerical control device includes: a program analyzing unit analyzing a transition of a moving velocity of a machining head and a transition of a supply amount of a material supplied to a beam-irradiation position based on a machining program; a movement distance calculating unit calculating a first distance based on a result of analysis performed by the program analyzing unit, the first distance being a length of a first movement section to a first position at which addition of the material to the workpiece is started, the first movement section being a section through which the machining head is moved while the head is accelerated; and a condition command generating unit generating a supply command to increase the supply amount of the material per hour from zero to a command value according to a machining condition while the machining head is moved through the first movement section.Type: GrantFiled: October 19, 2018Date of Patent: February 15, 2022Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Seiji Uozumi, Shun Kayashima, Nobuyuki Sumi
-
Publication number: 20220043430Abstract: A control information generation device generates control information for controlling an additive manufacturing apparatus that manufactures a layer shape using a bead that is a manufactured object formed by adding a molten processing material to a target surface while moving a processing position along a manufacturing path, and manufactures a three-dimensional shape in which the layer shapes are stacked. The device includes: a bead width correction unit that obtains a corrected width on the basis of the manufacturing path and a reference width of a cross section of the bead, the corrected width being a width of the cross section for allowing the beads to be adjacent to each other without overlapping; a path correction unit that obtains a corrected path on the basis of the manufacturing path and the corrected width; and a control information output unit that outputs control information indicating the corrected path and the corrected width.Type: ApplicationFiled: June 14, 2019Publication date: February 10, 2022Applicant: Mitsubishi Electric CorporationInventors: Kenji IRIGUCHI, Nobuhiro SHINOHARA, Daiji MORITA, Nobuyuki SUMI, Shun KAYASHIMA
-
Patent number: 11229956Abstract: A numerical control device controls an additive manufacturing apparatus that manufactures a modeled object by irradiating a wire, which is a material fed by a driving force of a rotary motor, which is a driving unit, with a beam, and applying the molten material to a workpiece. The numerical control device includes an error detecting unit that detects an error in the height of the workpiece in the height direction in which the material is deposited. The numerical control device includes a condition adjusting unit, which is an adjustment unit that adjusts the supply amount of the material on the basis of the error.Type: GrantFiled: October 22, 2018Date of Patent: January 25, 2022Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Shun Kayashima, Nobuyuki Sumi, Kenji Iriguchi, Seiji Uozumi
-
Publication number: 20210311457Abstract: A numerical control device includes: a program analyzing unit analyzing a transition of a moving velocity of a machining head and a transition of a supply amount of a material supplied to a beam-irradiation position based on a machining program; a movement distance calculating unit calculating a first distance based on a result of analysis performed by the program analyzing unit, the first distance being a length of a first movement section to a first position at which addition of the material to the workpiece is started, the first movement section being a section through which the machining head is moved while the head is accelerated; and a condition command generating unit generating a supply command to increase the supply amount of the material per hour from zero to a command value according to a machining condition while the machining head is moved through the first movement section.Type: ApplicationFiled: October 19, 2018Publication date: October 7, 2021Applicant: Mitsubishi Electric CorporationInventors: Seiji UOZUMI, Shun KAYASHIMA, Nobuyuki SUMI
-
Publication number: 20210308794Abstract: An additive manufacturing apparatus includes a laser oscillator that is a beam source that outputs a beam, and a rotary motor that is a driving unit that changes the relative positions of a material fed from a wire spool that is a supply source of a wire that is the material and an object to be machined. The driving unit is capable of performing first driving for feeding the material from the supply source toward the object to be machined and second driving for pulling back the fed material to the supply source, and switches from the first driving to the second driving on the basis of a machining program.Type: ApplicationFiled: October 24, 2018Publication date: October 7, 2021Applicant: Mitsubishi Electric CorporationInventors: Satoshi HATTORI, Takashi HASHIMOTO, Nobuyuki SUMI
-
Patent number: 11090764Abstract: An additive manufacturing apparatus performs additive machining by controlling a machining head that includes a wire nozzle to feed a wire to a machining region on a surface of a base material, a beam source capable of emitting a beam to an end of the wire, and a gas nozzle placed such that the beam source is interposed between the gas nozzle and the wire nozzle, the gas nozzle directing a gas toward the machining region, and the additive manufacturing apparatus includes a machining-condition selection unit to obtain an angle that is formed between a direction in which the wire is fed and a travel direction of the machining head, when viewed in a direction in which the beam is emitted, and to select a machining condition for the additive machining on the basis of the angle.Type: GrantFiled: April 12, 2018Date of Patent: August 17, 2021Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Shun Kayashima, Nobuyuki Sumi, Kenji Iriguchi, Seiji Uozumi