Abstract: An embodiment of the present disclosure provides a nozzle device for an FDM-type 3D printer, comprising: a filament supply unit to which filaments for FDM are supplied; a filament nozzle which is positioned under the filament supply unit and melts the filaments supplied from the filament supply unit to output molten filaments; a heater block which is provided around the filament nozzle to melt the filaments inside the filament nozzle; a gas tank; an aerosol generation unit which generates a nanoparticle aerosol; a plasma generation unit which generates plasma; and a plasma nozzle through which the plasma is ejected to the molten filaments, wherein the nanoparticle aerosol generated in the aerosol generation unit flows, together with the gas in the gas tank, to the plasma generation unit through a transfer pipe, and the molten filaments are surface-treated by using the plasma generated in the plasma generation unit and nanoparticles.

Abstract: A material dispense device includes a nozzle portion that dispenses a material, and a main body portion that has a flow path for a material and to which the nozzle portion is attached. The main body portion includes a body portion having an outlet of the flow path, and a male screw provided at an outer periphery of the body portion. The nozzle portion has a dispense opening at a front end of an in-nozzle flow path for the material, and includes a nozzle tip that is pressed against the body portion in an arrangement of communicating with the flow path. The nozzle portion further includes a pressing member that presses the nozzle tip against the body portion in a state in which the dispense opening is exposed to the outside. The pressing member includes a female screw at an inner periphery thereof. By fastening the female screw of the pressing member to the male screw of the body portion, the nozzle tip is pressed against the body portion.

Abstract: This disclosure describes multi-fluid kits for three-dimensional printing, three-dimensional printing kits, and methods of testing powder bed material for contamination. In one example, a multi-fluid kit for three-dimensional printing can include a fusing agent and a detector solution. The fusing agent can include water, an electromagnetic radiation absorber, and a first pigment reactant. The electromagnetic radiation absorber can absorb radiation energy and convert the radiation energy to heat. The detector solution can include water and a second pigment reactant. The second pigment reactant can be reactive with the first pigment reactant to form a colored pigment.

Abstract: A device and a method of flattening recycled carbon fiber material are provided. A main body is provided with two flat plates at an upper and a lower positions corresponding to each other and an ultrasonic unit is disposed on each of the flat plates. While in use, recycled carbon fiber material is placed at the lower flat plate and then at least one ultrasonic probe of the ultrasonic unit is driven to work and vibrate the recycled carbon fiber material into a flat and thin state. After the flattened recycled carbon fiber material being pressurized to form products required, the product has flat and smooth surfaces with special textures. A thickness of the product can be controlled and the product can be thinned according to users' needs, without surface treatment such as grinding, polishing, etc. Thereby production cost is reduced and yield rate of the products is improved.

Abstract: Disclose herein is a degassing apparatus for a pouch including a body part. The degassing apparatus can include a lower mold placed on a bottom surface of the body part, an upper mold configured to press a top surface of the body part placed on the lower mold, and a cooling member. At least one of the lower mold or the upper mold is cooled by the cooling member to cool an electrolyte injected into the body part when the body part contacts the lower or upper molds. A method for degassing a pouch can include seating a body part of the pouch on a lower mold, pressing the pouch with an upper mold, cooling a body part to lower the temperature of an electrolyte in an electrode assembly of the pouch, and suctioning a gas by inserting a gas inhaler into a gas pocket part.

Abstract: A system and method for providing centrifuge-based additive object manufacturing includes a rotating drum containing a photopolymer material that solidifies when irradiated by a light source, the photopolymer material spreads evenly over an item being manufactured when the rotating drum is in motion, a light source module emitting a light capable of solidifying the photopolymer material, a set of platform actuator elements coupled to a plurality of perforated platforms for controlling a position of the plurality of perforated platforms within the rotating drum while in operation, and a photopolymer material delivery system for adding a controlled amount of the photopolymer material into the rotating drum. The light source module moves inside the rotating drum and selectively emits its light solidifying the part of the layer above the plurality of perforated platforms in the areas crossing the object currently being manufactured.

Abstract: A method and apparatus for manufacturing a formed article of a composite material. The formed article is manufactured by heating and pressurizing a thermoplastic resin material and fabric material. The method includes a preforming process in which the material to be formed is put in a preforming mold with a release sheet arranged between the material and a part of the preforming mold. The material is heated and pressurized to impregnate the thermoplastic resin material into the fabric material, thus forming an impregnated intermediate material. Then, in a transport process the impregnated intermediate material in a heated state is taken out from the preforming mold with the release sheet left attached thereto, and transported. Finally there is a forming process in which the impregnated intermediate material is accommodated in the forming mold and the impregnated intermediate material is formed into the formed article of the composite material by pressurizing.

Abstract: Systems and methods for fabricating indirect bonding trays are disclosed. Physical models of a patient's teeth can be created with non-functional placeholder brackets, impressions of which can be transferred to indirect bonding trays. This can create wells in which functional brackets can be placed into, reducing errors created from transferring functional brackets from the physical model onto the indirect bonding trays.

Abstract: The present invention is a method to produce a biodegradable thermally induced shape memory polymer (SMP) based on poly(?-caprolactone) (PCL) and ethyl cellulose (EC). In this synthesis method, after grafting the PCL on the linear EC, the PCL chains are end-functionalized with furan and maleimide moieties. The cross-linked network is prepared via Diels-Alder (DA) reaction between furanyl and N-maleimidyl PCL chains. The synthesized SMP demonstrates excellent shape memory properties at near body temperature (41° C.). Moreover, the polymer network is recyclable and re-processable, since the DA reaction is thermally reversible. The SMP of the present invention is well suited for numerous applications, especially in medical devices, given their excellent shape memory performance, tunable materials properties, body temperature-based stimulus, biocompatibility, and potential for biodegradation and resorption.

Abstract: A process for treating polymer granular material (2) comprising the steps of heating and drying the polymer granular material in a drying hopper (10) by means of a drying gas, discharging a portion of the polymer granular material into an extruder (101), inside which the polymer granular material is brought to a molten or semi-molten state and transported along the extruder by a rotating screw (104) in order to be injected into a mould (102) or caused to pass through an extrusion head. The process provides for measuring a control parameter which is correlated with the rotation of the screw inside the extruder and regulating the flow rate of the drying gas on the basis of the control parameter.

Abstract: A layer-by layer method for additive manufacturing that includes: photocuring a first volume of resin to form a layer of a build at an upper surface of a separation membrane laminated over a build window; injecting a fluid into an interstitial region between the separation membrane and the build window; retracting the build from the build window; evacuating the fluid from the interstitial region; and photocuring a second volume of liquid resin to form a subsequent layer of the build between an upper surface of a separation membrane and the previous layer of the build.

Abstract: The present invention relates to a method of manufacturing a dental component, in particular a dental prosthesis or a partial dental prosthesis, by means of a dental furnace, comprising the following steps: (i) additively manufacturing, in particular by means of 3D printing, a model of the dental component from a model material on the basis of a virtual 3D model of the dental component; (ii) embedding the model in an investment material; (iii) removing the model from the investment material, in particular by heating or burning out, to obtain a negative mold of the model; (iv) inserting a raw material required for manufacturing the dental component into the negative mold; (v) producing the dental component in the negative mold; and (vi) removing the negative mold.

Abstract: There is provided a method for manufacturing a heat dissipation film. The method includes preparing a first mixture by mixing hexagonal boron nitride and an organic solvent, performing primary surface-modification on the hexagonal boron nitride, adding an amine-based silane compound to the first mixture, and then performing secondary surface-modification on the hexagonal boron nitride, preparing a second mixture by obtaining the secondarily surface-modified hexagonal boron nitride, and mixing the secondarily surface-modified hexagonal boron nitride, an imidazole-based curing agent, and an organic solvent, dispersing the second mixture, adding an epoxy resin to the second mixture, and then performing dispersion, and drying the organic solvent in the second mixture, and manufacturing a film using a product obtained by the drying.

Abstract: A method for producing a polypropylene sheet having a thickness of 0.5 to 5 mm, the method comprising; a step 1 of preparing a precursor in which a first biaxially oriented polypropylene film having a thickness of less than 0.15 mm and a melting point Tmh and a second biaxially oriented polypropylene film having a thickness of less than 0.15 mm and a melting point of Tml are alternately laminated; a step 2 of bringing a heating element into contact with an outermost layer of the precursor to thermally seal layer of the films, where Tmh?Tml?8(° C.) where the melting point is measured by a differential scanning calorimeter (DSC) under the condition at 30° C. to 230° C. and a heating rate of 10° C./min.

Abstract: The invention provides devices, systems, and methods for 3D printing. The invention employs slurries of particles or a solute in a carrier fluid, which may be a liquid or gas, in printing. The use of a slurry is advantageous in allowing for printing in any orientation.

Abstract: A method for providing a multifilament bundle of melt spun polymer filaments that includes providing a spinning device including at least M extruders for melting M polymers, M groups of spinning stations, each group comprising N spinning stations, each spinning station comprising a spin pack coupled to a spin pump which receives molten polymer from one of the M extruders and spins a strand of filaments by pushing said polymer through the coupled spin pack, and N transformation stations for bundling M strands of filaments. The method further includes spinning N*M strands of filaments from the spinning stations at a given spin pump output and bundling the strands into N multifilament bundles via the N transformation stations whereby the spin pump outputs are varied over time.

Abstract: Methods and systems for consolidating an additively manufactured piece. In one embodiment, methods include the step of combining the additively manufactured piece with another piece, for example with another additively manufactured piece or with a piece that is not additively manufactured (e.g. an insert, foam, etc.), so that during a consolidation step, those pieces are assembled or connected together.

Abstract: Embodiments relate to a method for forming a three-dimensional structure. The method includes determining one or more locations for positioning a sensing device based on structural coordinate information relating to a three-dimensional structure to be formed. The method further includes forming a portion of the three-dimensional structure based on the structural coordinate information. The method further includes positioning the sensing device at a location of the one or more locations.

Abstract: The invention relates to a process for the production of spunbonded nonwoven and a device for the production of spunbonded nonwoven, wherein, in the process, a spinning mass is extruded through a plurality of nozzle holes to form filaments, the filaments are drawn in the extrusion direction, precipitated at least partially by being subjected to a coagulation air stream comprising a coagulation liquid and deposited to form the spunbonded nonwoven.

Abstract: A molded product take-out apparatus includes: a controller independent of a molding machine; a take-out robot for releases a molded product from a mold in the molding machine by a command from the controller; a temperature controller regulates the temperature of the mold; a material dryer dries material to be supplied to the molding machine; and a material conveyor supplies the dried material to the molding machine. The controller is network-connected to the take-out robot and the temperature controller and the material dryer and the material conveyor. The controller is configured to control a release operation of the take-out robot to differentiate a release place between when judging that a detection data to be within an allowable range and another case.