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.

Abstract: A branch location is arranged close to a nozzle, and the channel lengths are the same. A processing nozzle that includes a beam path for passing light from a light source and ejects a fluid containing a processing material from an ejection port includes a supply pipe that is arranged outside the beam path through which the light passes, and supplies the fluid, and a first branch pipe and a second branch pipe that supply the fluid from the supply pipe to the ejection port, and have the same total length. The first branch pipe includes a first bent portion having a first shape on an upstream side of the fluid, and a second bent portion having a second shape on a downstream side of the fluid, and the second branch pipe includes a third bent portion having the first shape on the upstream side of the fluid, and a fourth bent portion having the second shape on the downstream side of the fluid.

Abstract: A powder is supplied to a shaping chamber without interrupting processing of shaping a three-dimensional laminated and shaped object. A three-dimensional laminating and shaping apparatus includes a shaping chamber in which a three-dimensional laminated and shaped object is shaped, a powder storage that stores a powder conveyed to the shaping chamber, an intermediate powder storage that is provided between the shaping chamber and the powder storage, is connected to the shaping chamber via a first valve, is connected to the powder storage via a second valve, and temporarily stores the powder, a valve controller that controls opening/closing of each of the first valve and the second valve, and an atmosphere controller that controls an atmosphere in the intermediate powder storage and an atmosphere in the shaping chamber.

Abstract: A powder convergence improves without varying the flow velocity and powder density of a powder flow. A processing nozzle includes an inner cone including a beam path that passes light from a light source, an outer cone arranged outside the inner cone, a fluid ejection channel formed by a gap between the inner cone and the outer cone, and including an ejection port that opens toward a process surface, and a fluid guide channel having a flow inlet for a fluid. The fluid guide channel guides the fluid toward the fluid ejection channel in a direction away from the beam path.

Abstract: A line inkjet head cleaning apparatus for effectively cleaning a long line inkjet head includes a wiper fixer extending in a longitudinal direction of a line inkjet head as a cleaning target and having a predetermined width in a vertical direction, a cleaning wiper being fixed to an upper end thereof, a cleaning solution tank having a predetermined volume accommodating the wiper fixer and having an opening in an upper surface, and a driver that vertically moves the wiper fixer between a cleaning solution in the cleaning solution tank and the line inkjet head as a cleaning target positioned above the opening.

Abstract: Ejection and stop of a powder flow are switched while maintaining a once generated steady flow without stopping it. A processing nozzle includes a supply source of a fluid containing a powder, a first channel through which the fluid supplied from the supply source passes, a second channel that supplies the fluid to an ejection port of the nozzle, a third channel that releases the fluid outside the nozzle, and a switch that causes the first channel and the second channel to communicate with each other when supplying the fluid to the ejection port, and causes the first channel and the third channel to communicate with each other when not supplying the fluid to the ejection port.

Abstract: This specification discloses an optical processing head including a light guide portion that guides, to a process surface, a ray for processing. The light guide portion is further configured to guide, to the process surface, a ray for inspection different in wavelength from the ray for processing. The optical processing head further includes an inspection portion that inspects the state of the process surface based on reflected light of the ray for inspection reflected by the process surface. With the optical processing head, the state of the process surface can be easily inspected even during optical processing.

Abstract: When an emission current is changed, a decrease in brightness of an electron beam is prevented. An electron gun includes a cathode that emits thermoelectrons, a Wehnelt electrode that focuses the thermoelectrons, a control electrode that extracts the thermoelectrons from a distal end of said cathode, an anode that accelerates the thermoelectrons and irradiates a powder with the thermoelectrons as an electron beam, and an optimum condition collection controller that changes at least one of a bias voltage to be applied to the Wehnelt electrode and a control electrode voltage to be applied to the control electrode, and decides a combination of the bias voltage and the control electrode voltage at which the brightness of the electron beam reaches a peak.

Abstract: This specification discloses a processing nozzle for efficiently performing supply of a powder serving as a material used for processing using an energy line. The processing nozzle includes a powder ejector that ejects a powder serving as a processing material toward a molten pool formed on a process surface by an energy line. The processing nozzle further includes an adjuster that adjusts, in accordance with the shape of the molten pool, the shape and/or position of a powder spot formed by the powder ejector.

Abstract: Disclosed is a processing nozzle for simultaneously ejecting a plurality of types of powder materials. This processing nozzle is a processing nozzle used to eject a powder material to a molten pool formed on a process surface by a laser beam, and includes an inner housing that forms an optical path to pass the laser beam, and an outer housing arranged while being separated from the inner housing by a gap serving as a first supply path of the powder material. A second supply path of the powder material and a third supply path having a diameter different from the second supply path are provided inside the outer housing.

Abstract: This invention quickly supplies a predetermined amount of powder from a hopper to a recoater. A powder supply apparatus includes, as its feature, a hopper, a powder spreader, a powder replenisher, and a pivoting unit. The hopper of the powder supply apparatus stores a powder. The powder spreader spreads the powder on a shaping surface. The powder replenisher of the powder supply apparatus is provided between the hopper and the powder spreader, and replenishes the powder spreader with a predetermined amount of powder. The pivoting unit of the powder supply apparatus causes the powder replenisher to pivot.

Abstract: An optical processing nozzle that homogeneously supplies a fluid to a processing surface in optical processing is provided. The optical processing nozzle includes a beam path that is arranged so that a beam can pass through the beam path toward a processing surface in order to perform processing using a beam guided from a light source, and a channel structure that is arranged around the beam path and is configured to eject a fluid toward the processing surface. The channel structure includes an inflow port through which the fluid flows, at least two passage holes through which the fluid flowing from the inflow port passes, a channel that guides the fluid from the inflow port to the passage holes, and an ejection port from which the fluid having passed through the at least two passage holes is ejected toward the processing surface.

Abstract: An optical processing head that detects a trouble of an optical processing head that will be generated at the time of optical processing before the trouble occurs is disclosed. The optical processing head that performs processing by condensing, on a process surface, a ray emitted by a light source for processing includes a cylindrical housing that surrounds a ray for processing emitted by the light source for processing, a ray emitter for inspection that is incorporated in the cylindrical housing and arranged outside the path of the ray for processing, and a light receiver that is incorporated in the cylindrical housing, arranged outside the path of the ray for processing, and receives a ray for inspection emitted by the ray emitter for inspection. The contamination of the inner surface of the cylindrical housing or the concentration of a scattering object flowing into the cylindrical housing is inspected by using a signal acquired from the light receiver.

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.

Abstract: A laser heating control mechanism according to this invention is a mechanism that performs proper adjustment of preheating or postheating by a simple operation in three-dimensional shaping. The laser heating control mechanism is a laser heating control mechanism for preheating or postheating a heating target object. The laser heating control mechanism includes an optical fiber that transmits a laser beam and radiates the laser beam from an opening end face, a collimation optical system that fucuses the laser beam radiated from the opening end face onto the heating target object, and an irradiation range adjustment mechanism that adjusts the distance between the opening end face and the collimation optical system along the irradiation axis of the laser beam so as to irradiate the heating target object with the laser beam at a predetermined beam diameter.

Abstract: An apparatus of this invention is directed to an information processing apparatus for fabricating a desired three-dimensional fabricated object by accelerating heat dissipation of a laminated portion at a time of fabricating the three-dimensional fabricated object. This information processing apparatus includes an acquirer that acquires laminating and fabricating data of a three-dimensional fabricating model, and a data generator that generates laminating and fabricating data by adding, to the three-dimensional fabricating model, a heat dissipation structure model for performing heat dissipation from a fabricated portion at a laminating and fabricating time. The added heat dissipation structure model is prepared and stored as a heat dissipation structure model obtained by combining a polyhedron having a predetermined volume and a heat dissipation structure model added to a predetermined surface of the polyhedron.

Abstract: This invention provides an information processing apparatus for fabricating a desired three-dimensional fabricated object by suppressing shrinkage of a fabricated object caused by a temperature drop in a laminated portion at a fabricating time of the three-dimensional fabricated object. This information processing apparatus includes an acquirer that acquires laminating and fabricating data of a three-dimensional fabricating model, and a data generator that generates laminating and fabricating data of a three-dimensional fabricating model added, when a width in a predetermined direction on a laminating surface of a fabricated object is equal to or larger than a threshold, with a shrinkage suppression structure model for suppressing shrinkage after laminating and fabricating, in the predetermined direction. The shrinkage suppression structure model is a plate-like structure model extending in the predetermined direction and having a length which can suppress shrinkage after laminating and fabricating.

Abstract: A machining apparatus that need not exchange a processing nozzle when changing a shaping condition, and increases the use efficiency of a material is disclosed. The processing nozzle that performs processing by ejecting a processing material toward a molten pool formed on a process surface by an energy line includes a cylindrical inner housing that incorporates a path through which the energy line passes, and ejects the energy line from one end, a cylindrical outer housing that incorporates the inner housing, and has an inner surface tapered in the ejection direction of the energy line ejected from the inner housing, and a slide mechanism that changes, along the energy line, the relative position of the outer housing with respect to the inner housing.

Abstract: An optical processing head capable of reducing the energy loss at the time of optical processing is disclosed. The optical processing head includes a first optical element that converts light emitted by a light source into first parallel light, a second optical element that is arranged downstream of the first optical element and converts the first parallel light into first divergent light, a third optical element that is arranged downstream of the second optical element and converts the first divergent light into second parallel light, and a fourth optical element that is arranged downstream of the third optical element and converts the second parallel light into convergent light which is condensed on the processing surface side.

Abstract: The spread amount of a powder to be spread from a powder recoater is adjusted. The powder recoater according to this invention includes a hopper that stores a powder. The powder recoater according to this invention also includes a cylindrical powder supplier that has a side surface close to or in contact with the bottom surface of the hopper and includes a supply path for the powder. The powder recoater according to this invention further includes a pivoting unit that causes the powder supplier to pivot. In the powder recoater according to this invention, the center axis of the supply path crosses the center axis of the powder supplier.