669results about "Manufacturing environment conditioning" patented technology

The utility model belongs to the technical field of additive manufacturing, and discloses an air outlet mechanism and additive manufacturing equipment. The air outlet mechanism comprises an air inlet assembly and a rectifying part, the air inlet assembly comprises an air inlet channel, one end of the air inlet channel is connected with an air source, and the other end of the air inlet channel is communicated with an air bellow; the rectifying part is arranged in the air inlet channel and is perpendicular to the air inlet direction in the air inlet channel, a first hole set and second hole sets located on the two sides of the first hole set are formed in the rectifying part, the hole diameter of the first hole set is larger than that of the second hole sets, and air entering the air inlet channel from the air source enters the air bellow after passing through the first hole set or the second hole sets. The air speed of the air close to the pipe wall of the air inlet channel is higher, the second hole set with the smaller hole diameter is arranged to rectify the part of the air, the air flowing through the rectifying piece is uniform in overall air speed, and therefore the quality of a printed piece is improved.

A 3D printer configured to print a 3D part includes an ejector having a nozzle that is configured to eject drops of a build material. The 3D printer also includes a build plate positioned below the nozzle. The drops land and solidify on the build plate to form at least a portion of the 3D part. The 3D printer also includes a first heater positioned under or within the build plate. The first heater is configured to heat the build plate and the 3D part thereon. The 3D printer also includes a second heater positioned laterally-offset from the build plate. The second heater is configured to heat a volume of air between the nozzle and an upper surface of the 3D part. The 3D printer also includes an enclosure. The nozzle, the build plate, the first heater, and the second heater are positioned at least partially within the enclosure.

The invention discloses a light energy focusing vacuum 3D printing fusion forming device and method. The device comprises a vacuum cabin system used for providing a vacuum environment, an optical energy focusing system used for forming fixed high-temperature light spots in the vacuum environment through external optical energy, a powder laying and printing system used for laying powder layer by layer in the vacuum environment and conducting 3D printing through the high-temperature light spots, and a control system used for achieving automatic operation of the whole device. The vacuum cabin system comprises a cabin body, a vacuum pump, a cabin body upper cabin door, a lens mounting seat, a vacuum detection piece and a vacuum valve; the light energy focusing system comprises a condensing lens, a light source and a light shield; the powder laying and printing system is arranged in the cabin body and comprises a powder pool mechanism, a powder laying mechanism and a planar motion mechanism. According to the device, combination of high-energy beam 3D printing fusion forming and vacuum 3D printing is achieved, and the vacuum light energy sintering 3D printing process can be completed under the ground condition.

The embodiments of the present disclosure relate to the technical field of a flexible semiconductor 3D additive material, in particular to a system for printing and discharging of a flexible semiconductor 3D additive material and a control method thereof. Ink materials corresponding to different layers of a flexible semiconductor to be printed are pre-treated prior to entering troughs. The ink materials after the pretreatment flow into the multi-channel troughs, the corresponding ink materials are controlled to be sequentially extruded by gases in the corresponding troughs, intertwined and injected into interfaces, and stacked to form a stacked layer structure at end of printheads connected with the interfaces to complete discharging and printing, thereby realizing simultaneous printing of the ink materials of different viscosities and fluidities, improving the printing speed, and realizing direct printing of a sandwich structure of a semiconductor device.

A consumable assembly for a 3D printer includes a spool carrying wound filament. A 3D printer includes a print head configured to receive filament material and a spool cabinet configured to have a filament spool positioned therein to provide a controlled environment for filament on the filament spool. A dock of the 3D printer is located outside of a chamber of the spool cabinet and is configured to receive a filament key fob, including a spool chip, of the filament spool to maintain the spool chip outside of the controlled environment of the chamber.

The application describes a machine tool adapted and arranged to carry out removal and addition of material on a work piece located in a work station, the machine having a first head arranged to remove material from the work piece and at least a second head arranged to process the work piece, each of the first and second heads being arranged to be moveable in at least two axes and preferably in 3, 4 or 5 axes and wherein the machine is arranged to control an environment of the work station. The work station is at least partially sealable. The machine has a clean side and a dirty side. Novel processing heads particularly adapted for use in the new machine tool are disclosed. These may also be retrofitted to CNC machines. The novel heads include heads adapted to carry out two processes simultaneously. Heads adapted to carry out heat and pressure treatment are also disclosed. Use of the processing heads to carry out analysis in manufacturing steps is disclosed as is the provision and use of heads that can carry out analysis as well as processing.

A material changing mechanism and 3D printing system for a 3D printer are disclosed. The material changing mechanism includes: a support frame; a material guiding unit mounted on the support frame, the material guiding unit including multiple sub-material guiding tubes and material guiding ports communicating with the multiple sub-material guiding tubes, the material guiding ports being used to engage with the main feed tube of the 3D printer; and multiple material changing units mounted on the support frame. This allows for the automatic provision of multiple feed lines to the 3D printer according to printing needs and facilitates easy replacement of the feed tray.

A rocket motor comprising a non-permeable outer shell, an intra-wall channel between the non-permeable outer shell and an annular section, and a center chamber formed at least in part by a first propellant is disclosed. The first propellant is made up of a multi-grained fuel grain, and the center chamber is further formed by an annular section. The intra-wall channel is configured to permit combustion gases to flux between the non-permeable outer shell and the annular section. The annular section configured to permit combustion gases to flux through pores embedded within the annular section.

A method of making a multi-grained fuel grain for a rocket is disclosed, the method comprising the steps of using at least one nozzle to extrude a first propellant in an additive manufacturing process, the first propellant comprising a multi-grained fuel grain, the multi-grained fuel grain forming the at least one void, the at least one void facilitating variation in internal ballistics, forming sensors, said sensors permitting continuous monitoring and continuous modification such that a user controls the ballistics profile of a rocket motor, forming an electrically-controlled second propellant in contact with and operatively coupled to the sensors; and wherein the additive manufacturing process uses at least at least one nozzle to extrude raw materials.

The invention discloses multi-laser 3D printing equipment. The multi-laser 3D printing equipment comprises an additive forming bin; a forming assembly is arranged above the additive forming bin, and the additive forming bin can be connected with the forming assembly in a sealed mode. The additive forming bin is arranged on the conveying assembly and can slide on the conveying assembly. The conveying assembly is arranged on the rack; a powder cleaning assembly is arranged on one side of the additive forming bin; the additive forming bin comprises a forming bin body and a forming assembly arranged in the forming bin body, the forming assembly is connected with the lifting assembly, the lifting assembly can drive the forming assembly to ascend and descend in the forming bin body, and the forming bin body is connected with the lifting assembly in a sealed mode. The forming bin has the beneficial effects that the sealing performance of the forming bin body can be improved due to the fact that the forming bin body is connected with the lifting assembly in a sealed mode, only the forming bin body needs to be subjected to gas washing during gas washing, the space occupied by the lifting assembly is reduced, particles generated by sintering are not prone to entering the connecting part of the forming bin body and the lifting assembly, and the sintering efficiency is improved. And finally, the service life of the lifting assembly is prolonged.

A method of determining an irradiation sequence for a powder bed fusion process in which an object is to be built in the powder bed fusion process. The method comprises determining, from geometric data (150) describing the object, a geometric characteristic of a surface of the object at different locations in a build direction, selecting different powder layer thicknesses (Tmin, T2, T3, T4, T5 Tmax) for powder layers based on the geometric characteristic (Dmax) and determining an irradiation sequence based on the selected layer thicknesses (Tmin, T2, T3, T4, T5 Tmax) and the geometric data (150).

The present invention relates to a method for air-drying solid, plasticizable material for use in a device for producing a three-dimensional object by means of additive manufacturing with material preparation, and to a corresponding device for producing the three-dimensional object from solid, plasticizable material with at least one additive manufacturing unit. A heated gaseous substance is introduced via a cavity (10) of a double-walled material feed nozzle (5) arranged between a material reservoir (2) for the solid material and a material feed zone (7) of a plasticizing unit (1) for plasticizing the solid material.The heated gaseous substance then emerges from the cavity (10) of the double wall (8, 9) of the material feed nozzle (5) near the material feed zone (7) and rises through the material feed nozzle (5) to the material reservoir (2), flowing around the solid material.

A Z-axis leveling system of an additive manufacturing system, the Z-axis leveling system comprising a base, a build platform, and a vertical actuator mechanically connected to the base. The vertical actuator further comprises a height adjuster platform, at least one vertical guide disposed on the height adjuster platform, a motorized transmission unit disposed on the height adjuster platform and connected to a vertical post platform, at least one vertical post mechanically coupled to the vertical post platform and a base platform connected to the base.

The present disclosure provides three-dimensional (3D) printing processes, apparatuses, devices, software, and systems for controlling and / or safely treating debris.

The system, methods, and uses of micromanufacturing materials, scaffolds, and living tissues in microgravity environment that is found in space such as Low-Earth-Orbit, on a spacecraft in-transit between celestial bodies, or on other celestial bodies such as the Moon or Mars.

Disclosed is a method for regulating an irradiation in a manufacturing process for the additive manufacturing of objects. The method involves identifying shape-regions in object layers to be solidified and categorizing them into reference-regions and correction-regions. Target-temperature maps are created to specify desired heat distribution for the correction-regions. Reference-regions are solidified while recording spatial temperature data, which is used to generate correction factor modules. These modules contain spatially resolved correction factors for irradiation values and are assigned to the corresponding correction-regions. The correction-regions are solidified using their respective correction factor modules, ensuring precise heat distribution and improved solidification accuracy.

An extruder for 3D FDM printing with a highly thermally conductive ceramic nozzle that allows for very high temperature operation suitable for printing metals and high melting point plastics, whilst also being hard wearing to cope with abrasive materials. A heating element is printed onto the nozzle to allow for high temperatures in a compact space. A skirt attached to the nozzle provides heating to already deposited material to assist in bonding metal as it is deposited, as well as fume extraction. A non-conductive ceramic down tube thermally isolates the nozzle from the material feed mechanism. All major parts are themselves 3D printed.

A cooling unit can be coupled to a build unit of a 3D printing system. The cooling unit comprises a cooling unit opening which is arranged to face a build unit opening when the cooling unit is coupled to the build unit to enable transfer of content from the build unit to the cooling unit. The cooling unit further comprises a self-locking latch mechanism to couple the cooling unit to the build unit such that the cooling unit opening faces the build unit opening.

The invention relates to an additive manufacturing machine (4) comprising:-a manufacturing enclosure (49) equipped with a glove box (251):-a powder transport circuit (42):-a power source configured to melt the powder in the manufacturing zone (63); and-a collection circuit (57) configured to collect powder from the transport circuit (42) and transport the collected powder to an outlet of the collection circuit (57), the outlet of the collection circuit being located above a reception zone (281), the reception zone (281) being different from the manufacturing zone (63) and located opposite the outlet of the collection circuit (57), and the gloves (251) being configured to handle an object located in the enclosure (49) and to reach the reception zone (281).

The utility model relates to an air purification module, three-dimensional printing equipment and a three-dimensional printing system. The air purification module comprises an air inlet channel, a carrier unit, an illumination unit and an exhaust channel, and the carrier unit is loaded with a titanium dioxide photocatalyst; the illumination unit corresponds to the carrier unit and is used for emitting ultraviolet light; the exhaust channel communicates with the air inlet channel to form an airflow channel, the carrier unit and the illumination unit are both arranged in the airflow channel, and the airflow channel is used for communicating with a printing space where the three-dimensional printing equipment is located. According to the air purification module, the ultraviolet light emitted by the illumination unit and the titanium dioxide photocatalyst in the carrier unit are subjected to photochemical reaction, volatile organic compounds can be purified, meanwhile, due to the fact that the titanium dioxide photocatalyst in the carrier unit cannot be consumed, frequent replacement of the carrier unit can be avoided, and the service life of the air purification module is prolonged. The replacement frequency of the carrier unit and the photocatalyst can be reduced while the purification effect of the air purification module is improved.

A method of determining an irradiation sequence for a powder bed fusion process, wherein each scanner of a plurality of scanners is operated to steer a corresponding energy beam across the powder bed (104) such that a plurality of the energy beams (118a, 118b, 118c, 118d) irradiate the powder bed (104) when a recoater (109) is above the powder bed (104), and powder layers (104a, 104b) are formed with the recoater (109) such that a movement of the recoater (109) on a powder layer forming stroke differs for different ones of the powder layers (104a, 104b). The method comprises determining an irradiation sequence for a powder layer 9104a, 104b) by allocating each scanner to irradiation regions (1a, 2a, 3a, 4a,1b, 2b, 3b, 4b) taking into account the movement of the recoater (109) on the powder layer forming stroke differing for different ones of the powder layers (104a) such that irradiation of each irradiation region (1a, 2a, 3a, 4a, 1b, 2b, 3b, 4b) is completed before the irradiation region (1a, 2a, 3a, 4a, 1b, 2b, 3b, 4b) is covered during formation of the next powder layer (104b).

The invention relates to an additive manufacturing device (20) comprising:-a package (7) configured to contain a powder (6) and to generate an exhaust gas flow (15) against the powder (6),-a laser source (1) configured to generate a laser beam and to expose the powder (6) to the laser beam passing through a window (2) of the package (7), -a blowing nozzle (3) and a suction nozzle (8) configured to generate a protective gas flow (18) in the enclosure (7) against the window (2).

A method of printing a three-dimensional object (90) including: providing a 3D inkjet printing system including: a printing chamber (162) accommodating a printing unit (120) having an inkjet printing head and a curing subunit (124), and a supply unit (130) including a modeling material and a support material; and printing the 3D object (90) in multiple consecutive layers according to a predefined printing sequence, wherein for at least one of the multiple consecutive layers the predefined printing sequence for the same respective layer includes depositing and curing the modeling material and the support material separately from each other either in time or in space. Some embodiments may include controlling a concentration of oxygen in the printing chamber (162) to be in a predefined oxygen concentration range. Some embodiments may include controlling a temperature in the printing chamber (162) to be in a predefined temperature range.

A Hall effect thruster is provided having one or more components fabricated using additive manufacturing techniques. Additive manufacturing can be used to fabricate the magnetic flux guide and the discharge channel of the thruster. In addition, the propellant distributor for the thruster can be incorporated into the base of the discharge channel. The magnetic flux guide can be fabricated with a filament impregnated with a magnetic material and the discharge channel can be fabricated with a filament impregnated with a ceramic material. Permanent magnets can be positioned in the magnetic flux guide at locations that surround the discharge channel.

We describe a system for use in an apparatus for producing a three-dimensional workpiece using an additive layer manufacturing technique, the system comprising: an irradiation unit configured to selectively irradiate an irradiation plane with an irradiation beam, and a control unit coupled to the irradiation unit and configured to control the irradiation unit to modulate, as a function of a local process parameter when producing the three-dimensional workpiece, an irradiation beam property of the irradiation beam.

Device for separating pollutants and / or particles from a process exhaust gas stream, in which a process raw gas flows by means of a compressor towards at least one filter element and through the at least one filter element; wherein the at least one filter element is arranged in a chamber and a metering device for a powdered additive is arranged upstream of the at least one filter element in the flow direction of the process raw gas, with which the additive can be supplied to the process raw gas. characterized in that wherein a storage container (A) for the powdered additive is arranged on the dosing device such that the powdered additive is dispensed onto a surface of at least one sieve (D) and that at least one sieve (D) can be set into vibration by means of a device (B) and / or vibrations can be coupled into the sieve (D) that act on the sieve (D); wherein characterized by the fact that The mesh size of the at least one sieve (D) and the particle size of the powdered additive are selected such that particles of the powdered additive only pass through the sieve (D) if the at least one sieve (D) has been set into vibration or the sieve (D) is vibrating and particles that have passed through the at least one sieve (D) can be fed into the process raw gas stream and are deposited as part of a filter cake on the at least one filter element, wherein two sieves (D) are arranged decoupled from each other so that independent, unhindered vibration of one of the two sieves (D) or both sieves (D) is possible.

A 3D printer (100) including an expandable build chamber (102), a print bed (122), and a print head (124) is disclosed. The expandable build chamber (102) is defined by a plurality of stationary walls (104) and an adjustable wall (106) enclosing an open interior (116) having an open interior volume. The print bed (122) is configured to receive the feedstock material from the print head (124). The print bed (122) is disposed within the open interior (116). The print head (124) is configured to deposit the feedstock material onto the print bed (122). The print head (124) is disposed within the open interior (116). The adjustable wall (106) is configured to move away from the open interior (116) to increase the open interior volume as the print head (124) deposits the feedstock material onto the print bed (122) while maintaining isolation of the open interior (116) from the ambient environment.

Examples of a laser additive manufacturing system are described. The system comprises a laser configured to generate a laser beam, a fiber optic coupled to the laser to transmit the laser beam to a laser optic head that is coupled to the fiber optic and comprises a focus lens to focus the light beam. The laser optic head is configured to slide along a sliding mechanism in X-direction. A powder feeder is used to continuously move in Y-direction and dispense an uniform layer of powdered material onto a powder bad that is positioned on a build plate of the building chamber. The build plate is configured to move in Z-direction. The light beam generated by the laser is focused using the laser optic head onto a small region of the powder bed where the powdered material is positioned producing small volumes of melt pools that are then cooled and a new layer of powdered material is dispensed over it.