Mitsubishi Electric Corporation

Nobuyuki Sumi

Shun Kayashima

Seiji Uozumi

Kenji Iriguchi

Nobuhiro Shinohara

Hidetaka Katogi

Akihiro Goto

Satoshi Hattori

Daiji Morita

Hiroyuki Teramoto

Yoshikazu Nakano

Takashi Hashimoto

Yoshiyuki Matsui

Yusuke Yasunaga

Shinji Fujishiro

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.

Additive manufacturing path generation apparatus, additive manufacturing path generation method, and machine learning apparatus

A control device controls at least one of: power of a heat source; or a scanning speed of the heat source and a material feed speed of feedstock. The control device includes a processing condition output unit, a heat source power addition unit, a molten pool state error calculation unit, and a speed adjustment unit. The output unit outputs values of the power of the heat source, the scanning speed, and the feed speed. The addition unit outputs a post-addition value of the power of the heat source to the processing condition output unit when a molten pool state error is less than a predetermined threshold and the value of the power of the heat source is less than maximum power of the heat source. The calculation unit calculates the error. The adjustment unit adjusts the scanning speed and the feed speed based on the error.

Control device and control method for additive manufacturing system

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.

Additive manufacturing apparatus, additive manufacturing system, additive manufacturing method, storage medium, and learning device

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.

Additive manufacturing apparatus

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.

Control information generation device and control information generation method for controlling an additive manufacturing apparatus using bead width correction

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.

Process decision support device, process decision support method, and storage medium

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.

Numerical control device and method for controlling additive manufacturing apparatus

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.

Additive manufacturing apparatus and numerical control device

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.

Display system, additive manufacturing device, and progress display method

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.

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.

Numerical control device, additive manufacturing apparatus, and method for controlling additive manufacturing apparatus

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.

Additive manufacturing apparatus, additive manufacturing system, and additive manufacturing method

A deposition condition control device includes: a machining program analyzing unit that obtains a scan rate of a laser beam; a data acquiring unit that acquires an output value of the laser beam, a supply amount of the metal material, and a temperature of the portion to be machined in a molten state; a welding state determination unit that determines whether or not a welding state of the metal material is a stable welding amount state on the basis of the scan rate, the output value, the supply amount, and the temperature; a deposition condition adjusting unit that adjusts the output value and the supply amount so that a result of the determination will be the stable welding amount state; and a deposition condition outputting unit that outputs a command value of the adjusted output value and a command value of the adjusted supply amount to the machine tool.

Metal additive manufacturing welding condition control device and method

An additive manufacturing support device includes reading circuitry that reads shaped article data that is data indicating the three-dimensional shape of a shaped article, first generating circuitry that generates primary data that is data indicating the three-dimensional shape of a primary separated portion provided in a region where a cutting part of a cutting apparatus passes between the plate and the shaped article, and second generating circuitry that generates, based on a machining allowance between the cutting part and an object to be cut in a process in which the cutting part passes between the plate and the shaped article, secondary data for reducing change in the machining allowance.

Additive manufacturing support device, additive manufacturing support method, and computer program product

Obtaining a powder for metallurgy capable of improving a filling rate in a mold or on a table in powder metallurgy. The powder for metallurgy includes a plurality of secondary particles obtained by combining a plurality of primary particles with a binder. The characteristics of the powder for metallurgy is any one of that the plurality of primary particles includes first primary particles and second primary particles having different shapes from each other, that the second primary particle enters a gap between the first primary particles, that the plurality of primary particles includes first primary particles and second primary particles having different peaks of particle sizes from each other in a particle size distribution, or that the plurality of secondary particles includes first secondary particles and second secondary particles having different peaks of particle sizes from each other in a particle size distribution.

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Tokyo, Japan

Nobuyuki Sumi