967results about "Manufacturing environment conditioning" patented technology

A powder spreading device includes a device body, an adjustment assembly, and a dust removing mechanism. The adjustment assembly is provided on the device body. The adjustment assembly is configured to orient to a powder spreading surface. A first end of the dust removing mechanism is provided on the device body. The first end of the dust removing mechanism is covered over the adjustment assembly. A second end of the dust removing mechanism is communicated to the first end of the dust removing mechanism. The second end of the dust removing mechanism is configured to extend to the device body. A three-dimensional (3D) printing device and a 3D printing system are further provided.

The invention relates to a process and a system for 3-dimentional (3D) fabrication of sub-micron structures and is established by local electrochemical deposition methods.

Described herein are compositions, methods, and systems for printing metal three-dimensional objects. In an example, described is a method of printing a three-dimensional object comprising: (i) depositing a metal powder build material, wherein the metal powder build material has an average particle size of from about 10 μm to about 250 μm; (ii) selectively applying a binder fluid on at least a portion of the metal powder build material, wherein the binder fluid comprises an aqueous liquid vehicle and latex polymer particles dispersed in the aqueous liquid vehicle; (iii) heating the selectively applied binder fluid on the metal powder build material to a temperature of from about 40° C. to about 180° C.; and (iv) repeating (i), (ii), and (iii) at least one time to form the three-dimensional object.

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.

Systems and methods for providing inert manufacturing and processing environments. In certain embodiments, a build box having green parts that were manufactured via binder jetting additive manufacturing is sealed with a lid and heat cured in an oven. A supply of process gas is delivered to the build box to provide an inert environment within the build box during the heating process, which results in an exhaust of gaseous species from the build box and prevents contamination from the ambient environment. In certain embodiments, copper-alloy parts are manufactured via binder jetting additive manufacturing in an inert environment to achieve higher final densities after post-processing and sintering.

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.

Disclosed are a 3D printing system and a method. The system comprises: a 3D printer, a controller and a gas separation apparatus. The controller communicates with the 3D printer, and is used to control the 3D printer to perform 3D printing. The controller also communicates with the gas separation apparatus, and is used to generate a control instruction on the basis of a pre-configured control strategy, and to send the control instruction to the gas separation apparatus. The gas separation apparatus is used to, based on the received control instruction, separate a target gas from air received from outside, so as to convey the target gas to the 3D printer. The present disclosure solves the technical problem in the prior art of there being no suitable stable gas supply apparatus for 3D printing.

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 present invention relates to a method for producing a coated object by additive manufacturing in vacuum and to a device for producing a coated object. The method comprises forming a first polymer layer on a workpiece and / or on a printing bed. A first coating layer is formed on at least a part of the first polymer layer by vacuum-based vapor deposition. A second polymer layer is formed on at least a part of the first polymer layer and / or of the first coating layer, wherein the second polymer layer is formed before, during or after forming the first coating layer. The first polymer layer, the first coating layer and the second polymer layer are formed in vacuum at a gas pressure of less than 10−2 mbar.

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.

An apparatus, system and method for limiting build plate expansion in a 3D print environment. The apparatus, system and method may include a decoupling leveler associated with mounts for a build plate in the print environment; and a plurality of adjustments passing substantially through and mounted within the decoupling leveler. The leveler may be decoupled from the mounts during heating and cooling of the print environment, and recoupled via a positional clamped by the plurality of adjustments during printing on the build plate.

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.

A build head for a powder bed fusion (PBF) additive manufacturing system includes a powder delivery mechanism configured to deliver build powder to a build area of an annular build plate to form a build powder bed while the annular build plate rotates when the PBF additive manufacturing system is in operation. A recoater is configured to provide even distribution of the build powder in the build powder bed and an optical array is positioned over the build area on the build plate to project energy onto the build powder bed to form a melt pool in the build powder bed.

The present invention provides a method of forming a 3D object, the method comprising: providing a photo-curable resin, providing a print head for transmitting curing radiation to the photo-curable resin, the print head having a cavity containing gas, introducing the print 5 head into the resin to form a submerged gas-resin interface between the gas and the resin, wherein said gas-resin interface is constrained to the print head and defines a printing surface, projecting curing radiation on the submerged gas-resin interface to promote curing of the resin at the printing surface, and promoting relative movement between the gas-resin interface and the resin to produce the 3D object. The method may also include a step of 10 transmitting acoustic waves to the submerged gas-resin interface.

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.

Pressure Delivered 3D Dynamic Printing (PD3DP) comprise 3D printing wherein the polymerizable material (typically a resin) is delivered under positive pressure as each layer of a target object is built / printed. Such positive pressure can be applied intermittently and even reversed to provide a cyclical application of the pressure to assist delivery of the resin, placement of the resin at locations suitable for the shape of the target object, curing of the resin, and releasing of the target object from the projection place between printing of successive layers.

A vacuum sealed 3D printer (10), comprising: at least one vacuum chamber (3) defining at least one operational area, said at least one vacuum chamber sealingly sized and shaped to enclose: (i) at least one build plate (1), movable along at least one axis; and, (ii) at least one printing head (100), movable along at least one axis, comprising at least one printing nozzle (10) for depositing at least one curable polymer on said at least one build plate (1) for the formation of at least one 3D object: at least one vacuum pump (7), in fluid tight communication with said at least one vacuum chamber (3), such that when said vacuum pump (7) is activated vacuum is applied within said vacuum chamber (3) to remove air bubbles created during depositing said at least one curable polymer.

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.

A method can include: (a) providing a cartridge including a volume of a photocurable composition in an irradiation zone; (b) selectively irradiating the volume of photohardenable composition included in the cartridge with excitation light of one or more wavelengths to at least partially harden, polymerize and / or crosslink the resin composition to at least partially form one or more objects in the volume; (c) removing the cartridge from the irradiation zone after the selective irradiation step; and optionally repeating steps (a)-(c) with a series of one or more further cartridges, said one or more further cartridges comprising a next volume of the photocurable composition. An assembly for printing 3D objects may include a printer having at least one excitation light source configured to cure a photocurable resin and form one or more 3D objects in a cartridge.

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.