Abstract: A shielding gas ejecting device includes a nozzle body extending along an axis, an inner shielding gas ejection path provided inside the nozzle body and opened on the axis, an outer shielding gas ejection path surrounding the inner shielding gas ejection path from a periphery, and an intermediate shielding gas ejection path provided between the inner shielding gas ejection path and the outer shielding gas ejection path. A flow velocity of an intermediate shielding gas ejected from the intermediate shielding gas ejection path is lower than a flow velocity of an inner shielding gas ejected from the inner shielding gas ejection path and a flow velocity of an outer shielding gas ejected from the outer shielding gas ejection path.

Abstract: An additive manufacturing nozzles includes a header (41) extending in a width direction of the chamber and which is configured to be supplied with inert gas from the outside, and a nozzle body (43) connecting with the header (41) in the width direction and is configured to horizontally blow out the inert gas, which is supplied from the header, to a molding area. The nozzle body has a honeycomb part (52) which defines an inside of the nozzle body into flow channels through which the inert gas flows, a blowout part (55) disposed downstream of the honeycomb part and which is connected with the honeycomb part in the width direction. The inert gas passed through the plurality of flow channels is led from the honeycomb part to the blowout part, and a porous part (54), which has openings, is disposed between the honeycomb part and the blowout part.

Abstract: An additive manufacturing device of the present disclosure includes a bottom portion having an additive manufacturing area on which an additive manufacturing article is additively manufactured, a ceiling portion positioned above the bottom portion and having a blowing part for an inert gas, a side portion standing upward from a side end portion of the bottom portion, and a discharge port of the inert gas, in which under a condition where a first direction is oriented from the additive manufacturing area toward the discharge port in a direction parallel to the bottom portion and a second direction is oriented across the first direction in the direction parallel to the bottom portion, a first width of the blowing part in the second direction is larger than a second width of the blowing part in the first direction and is equal to or larger than a third width of the additive manufacturing area in the second direction.

Abstract: An object of the disclosure is to improve processing performance. Another object of the disclosure is to improve a working environment and reduce a failure of a processing apparatus. The processing apparatus includes a processing stage on which a composite material is set, a laser head that emits a laser beam in a predetermined direction to the composite material set on the processing stage, a blow off unit that blows off a shield gas to an irradiation point irradiated with the laser beam by the laser head, and an intake unit that takes in the shield gas blown from the blow off unit. The blow off unit and the intake unit are provided so as to interpose the irradiation point and face each other in a first intersecting direction and cause the shield gas to flow in one direction.

Abstract: This laser processing device is provided with a laser radiating unit which forms a processed groove extending in a scanning direction on a workpiece, by subjecting the workpiece to laser processing while scanning the surface of the workpiece, and a nozzle portion which has a plurality of ejection holes arranged side by side in the scanning direction, and which ejects a gas toward the processed groove from each of the ejection holes. With this laser processing device, since a plume is eliminated by ejecting gas into the processed groove by means of the nozzle portion, the formation of a heat affected layer by the plume can be suppressed to an even greater extent.

Abstract: A laser machining device includes: a laser irradiation unit that forms a machining groove that has one end opening to an end section of a workpiece and the other end thereof closed, as a result of scanning a workpiece surface from an end section of the workpiece and laser machining the workpiece; and a nozzle unit that sprays a gas across an irradiation zone of the workpiece surface created by the laser irradiation unit. The nozzle unit is configured so as to increase the flowrate of the gas supplied to the irradiation zone, from one end to the other end of the machining groove.

Abstract: A laser processing device includes a laser irradiation unit that performs processing on a workpiece by using a laser while scanning a workpiece surface to form a kerf, jet nozzles that respectively form jet flows flowing toward a bottom surface of the kerf on front and rear sides in a scanning direction of the laser, and an intake part that sucks, above injection ports of the jet nozzles, a gas in a region surrounded by the jet flows from the front and rear sides. In a state in which a certain region of the kerf is isolated by the jet flows, the gas is sucked from this region by the intake part. As a result, a suction force by the intake part can reach the bottom surface of the kerf.

Abstract: An atomizer nozzle includes: a molten metal nozzle extending in a vertical direction and which allows a molten metal to flow downward from a lower end thereof; and a gas nozzle including a chamber having an inner peripheral surface surrounding an outer periphery of the molten metal nozzle, a blow portion which introduces a gas to the chamber toward a circumferential direction of the molten metal nozzle, and a cover extending from the chamber to a position below the lower end of the molten metal nozzle while surrounding the molten metal nozzle, wherein the cover is provided with a tapered inner peripheral surface connected to the inner peripheral surface of the chamber and of which diameter is decreased as close to a lower end portion of the tapered inner peripheral surface.

Abstract: To reduce an influence of a flow of ambient atmosphere and the like on flying of a droplet ejected from a nozzle of an inkjet head. To exhaust vapor of a solvent contained in a coated film while reducing an influence on flying of the droplet. An exhaust device for inkjet coating includes: a cover that covers at least a target range on an object to be coated, the target range being a range in which a droplet lands that is ejected from an ejection nozzle of an inkjet head to a surface of the object to be coated; a closing member that closes a gap between the cover and the object to be coated around the target range; an external communication portion through which a compartment surrounded by the cover, the object to be coated, and the closing member communicates with an outside; and an exhaust mechanism configured to exhaust air from the compartment.

Abstract: A laser processing device of the present invention includes a laser radiation unit which is configured to perform laser processing on a workpiece while scanning a work surface from an end portion of the workpiece to form a processing groove of which one end is open at the end portion of the workpiece and the other end is closed; and a nozzle unit which is configured to inject a gas along the surface of the workpiece such that a flow velocity thereof increases from the one end of the processing groove toward the other end.

Abstract: A laser cutting apparatus includes a laser beam irradiation apparatus configured to radiate a laser beam, a pressure wave irradiation part including a plurality of pressure wave sources configured to radiate pressure waves toward a fusing part or a section to be cut by the laser beam, and a jet injection part configured to inject jets toward the fusing part or the section to be cut along respective outer circumferential sides of the pressure waves.

Abstract: An additive manufacturing nozzles includes a header (41) extending in a width direction of the chamber and which is configured to be supplied with inert gas from the outside, and a nozzle body (43) connecting with the header (41) in the width direction and is configured to horizontally blow out the inert gas, which is supplied from the header, to a molding area. The nozzle body has a honeycomb part (52) which defines an inside of the nozzle body into flow channels through which the inert gas flows, a blowout part (55) disposed downstream of the honeycomb part and which is connected with the honeycomb part in the width direction. The inert gas passed through the plurality of flow channels is led from the honeycomb part to the blowout part, and a porous part (54), which has openings, is disposed between the honeycomb part and the blowout part.

Abstract: To reduce an influence of a flow of ambient atmosphere and the like on flying of a droplet ejected from a nozzle of an inkjet head. To exhaust vapor of a solvent contained in a coated film while reducing an influence on flying of the droplet. An exhaust device for inkjet coating includes: a cover that covers at least a target range on an object to be coated, the target range being a range in which a droplet lands that is ejected from an ejection nozzle of an inkjet head to a surface of the object to be coated; a closing member that closes a gap between the cover and the object to be coated around the target range; an external communication portion through which a compartment surrounded by the cover, the object to be coated, and the closing member communicates with an outside; and an exhaust mechanism configured to exhaust air from the compartment.

Abstract: A dry machining apparatus includes: a tool that machine a workpiece; a first surface that is arranged below the tool and receives chips generated by the machining; a second surface that is arranged upper than the first surface; a third surface that connects the first surface and the second surface; and an air jet nozzle that has an air jet port which jets air toward a boundary portion between the second surface and the third surface from the second surface, and the air jet nozzle supplies at least a part of the air jetted from the air jet port to the first surface.

Abstract: A laser cutting apparatus includes a laser beam irradiation apparatus configured to radiate a laser beam, a pressure wave irradiation part including a plurality of pressure wave sources configured to radiate pressure waves toward a fusing part or a section to be cut by the laser beam, and a jet injection part configured to inject jets toward the fusing part or the section to be cut along respective outer circumferential sides of the pressure waves.

Abstract: A dry machining apparatus includes: a tool that machine a workpiece; a first surface that is arranged below the tool and receives chips generated by the machining; a second surface that is arranged upper than the first surface; a third surface that connects the first surface and the second surface; and an air jet nozzle that has an air jet port which jets air toward a boundary portion between the second surface and the third surface from the second surface, and the air jet nozzle supplies at least a part of the air jetted from the air jet port to the first surface.

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: A hydraulic oil storage device and an injection molding device are provided with a connection box that partitions a storage region of a sub-tank into a first region that includes a flow channel opening portion for a coupling tube and a second region other than the first region, in which the connection box is provided with an internal region communication portion that brings the first region and the second region into communication, and causes a pressure loss equal to the pressure loss of the coupling tube, or a pressure loss greater than that pressure loss, and a return tube is connected to the sub-tank so that the flow channel outlet faces the first region.

Abstract: An object is to provide a vehicle heat-exchange module that is capable of reducing abnormal sound generated by interference between rotor blades of a propeller fan and high-static-pressure regions generated at leading edges of stator blades, while decreasing the input power of a fan motor by providing the stator blades on the downstream side of the propeller fan. In a vehicle heat-exchange module including a fan motor that drives a propeller fan, the fan motor is supported to the fan shroud at a downstream side of the propeller fan via motor support struts formed into stator blades in a radiating pattern, and a distance between stator blades formed of the motor support struts and rotor blades of the propeller fan for a narrowest portion at the same position in the radial direction is at least 0.018D<L1, where D is the diameter of the rotor blades.

Abstract: An object is to provide a vehicle heat-exchange module capable of optimizing the whole of a stator blade that deflects a flow in the swirling direction produced by a cooling fan, thereby reducing the work performed by the cooling fan and eventually reducing the input power to the cooling fan, and to provide a vehicle having the vehicle heat-exchange module. According to the vehicle heat-exchange module (10), the stator blade (30) arranged on the downstream side of the cooling fan (16) is divided by an intermediate ring (31) into inner-circumference-side stator blade members (32A) and outer-circumference-side stator blade members (32B), and the number of the inner-circumference-side stator blade members (32A) for installation is made smaller than that of the outer-circumference-side stator blade members (32B), thus setting the pitch/chord ratio within an appropriate range at each of the inner circumference side and the outer circumference side.