Abstract: A compound for protection of an object from a blast or shock wave. The compound include a matrix material and at least a first and second sets of inclusions in the matrix material that differ in size, quantity, shape and/or composition in a direction through the impact-absorbing material, the combination of which contributes to the ability of the material to exhibit at least one property that changes as the inclusions are deformed in response to a blast or shock wave.

Abstract: A process of microcellular foaming an article includes the steps of opening a valve to convey a polyolefin material from a hopper to a mold; activating a pressurized device to increase pressure of the mold to a predetermined pressure by heating at a predetermined temperature; supplying SCF to the mold to effuse through the polyolefin material via a pipe, thereby generating SCF effused polyolefin material; after releasing the predetermined pressure, foaming the SCF effused polyolefin material in the mold in a ratio of 1 to 1; cooling the mold; opening the mold; and removing a finished foamed article out of the mold.

Abstract: According to an embodiment of the present disclosure, provided is a method for manufacturing a bus bar in which a frame including a sensing part and a body part connected to the sensing part is prepared, the frame is inserted into and fixed to an injection molding mold, and an enhanced part enhancing the strength at a position where fatigue is concentrated by an enhancing injection material injected into the injection molding mold is formed in the frame.

Abstract: The object of the invention can be a method of manufacturing a product in the form of a sandwich comprising a core and outer layers. The outer layers may be composed of composite material comprising a fiber-reinforced polymeric matrix. The method uses an insert of heat-resistant material, for example silicone. The object of this invention can be to provide a method of manufacturing a sandwich that dissociates the choice of material of the core of the sandwich from the choice of the material of the outer layers.

Abstract: A reel based tensioning device includes a housing, a spool that is rotatably positioned within the housing, and a knob member that is operably coupled with the spool to cause the spool to rotate in a first direction within the housing and thereby wind a tension member about the spool. The reel based tensioning device also includes a load holding mechanism that is coupled with the spool and that is configured to rotate the spool in the first direction within the housing and to prevent rotation of the spool in a second direction to prevent unwinding of the tension member from about the spool. The reel based tensioning device further includes an audible component that is configured to produce an audible noise responsive to operation of the knob member to signal an adjustment of the tension member.

Abstract: To provide method for manufacturing interdental cleaner for suppressing elastomer from insufficiently filling into space around shaft portion in filling the elastomer into mold. Method for manufacturing interdental cleaner includes first step of molding base portion having handle portion and shaft portion (40) by filling composite material into first mold, and second step of forming cleaning portion, slip resistance portion and coupling portion by filling elastomer into second mold (200) from distal end portion side of shaft portion (40) with base portion situated in second mold (200), second mold (200) having second space for forming cleaning portion, slip resistance portion and coupling portion. What is used as second mold (200) in second step has ratio no less than 40% of a flow path area in second space for elastomer around distal end portion of handle portion to flow path area in second space for elastomer around proximal end portion of shaft portion (40).

Abstract: A method for producing an injection device are disclosed. The injection device comprises a hollow needle which is positioned in a basic body of the injection device. The injection device is produced by a two-stage injection process. At least one first slider and a second slider are provided in a tool block. Together with the tool block, the first slider and the second slider form free space, which defines a shape of a pre-injection molded part of the basic body of the injection device.

Abstract: A mold platen includes a mold plate to which a mold is attached, a rear-surface plate provided opposite to the mold plate, coupling portions configured to be coupled to respective tie rods at four corners of the mold plate and the rear-surface plate, a cylindrical rib that is provided between the mold plate and the rear-surface plate and is located at a center part of the mold plate and the rear-surface plate, a diagonal reinforcing rib that is provided between the mold plate and the rear-surface plate and is configured to connect the cylindrical rib and each of the coupling portions, and a longitudinal/lateral reinforcing rib that is provided between the mold plate and the rear-surface plate and extends from the cylindrical rib along a position between the adjacent coupling portions.

Abstract: A purge cover for injection molding machine has a cover body having a nozzle through-hole allowing a nozzle of a cylinder to pierce through, an exhaust passage extending higher than the cylinder in an upward direction, and a discharge port communicating with the exhaust passage, and a plurality of exhaust plates disposed at the discharge port of the cover body. The plurality of exhaust plates have exhaust holes for air moving in the upward direction from the cover body, and the exhaust holes are arranged so as not to planarly overlap when the plurality of exhaust plates are disposed at the discharge port of the cover body.

Abstract: A remote controller can be provided on any apparatus that employs feedback control from a native controller to add functionality to the apparatus where the native controller is not capable of providing such functionality independently.

Abstract: The present disclosure relates to films having at least a first profiled layer and a second layer having an inverse profile of the first layer. Those films can be used as protection tapes for various surfaces. Exemplary uses of the films of the present disclosure include leading edge protection tapes for rotor blades.

Abstract: The invention relates to an extruder system and a method for extruding cord reinforced extrudate, in particular for tire components, wherein the extruder system comprises an extruder head with flow channels for receiving an extrusion material from an extruder, a die for receiving said extrusion material from the flow channels and a cord guide for guiding cords side-by-side in a cord plane into the die, wherein the extruder head is provided with an insertion slot that extends in an insertion direction parallel to the cord plane through the extruder head, wherein the flow channels debouch into the insertion slot at a flow area, wherein the insertion slot is arranged for receiving the die and the cord guide in the insertion direction into a die position downstream of the flow area and a cord guide position upstream of the flow area, respectively, with respect to the insertion direction.

Abstract: Rheology-modified, additive-containing ethylenic polymer compositions are prepared in a continuously operated extruder comprising first, second and third zones by a process comprising the steps of: mixing in the second zone of the extruder an ethylenic polymer and a high-temperature decomposing peroxide at a temperature such that the half-life of the peroxide is equal to or greater than one minute and for a sufficient period of time to modify the rheology of the ethylenic polymer to produce a rheology-modified, melted ethylenic polymer for transfer to the third zone of the extruder; and adding to the third zone one or more additives to the rheology-modified, melted ethylenic polymer to produce the rheology-modified, additive-containing ethylenic polymer.

Abstract: The invention relates to a method (100) for controlling film production, in which at least one film is produced according to at least one formula information (R), the following steps being carried out: initiation of execution (210) of a film production process such that a film is produced on the basis of a specific formulation information (R); determination of monitoring information (I) during the execution (210) of the process; determination of at least one fingerprint (F) on the basis of the specific formula information (R) and on the basis of the monitoring information (I) such that the execution (210) of the process is characterised on the basis of the fingerprint (F); and comparison of the fingerprint (F) with a control matrix (M) such that at least one comparative result is determined in order to control the film production on the basis of the control matrix (M) as an evaluation basis.

Abstract: An injection-molding device for producing a hollow-formed plastic object, at least comprising a mold for the primary shaping of the plastic object, an injection device for at least partially introducing a flowable polymer melt into a cavity within the mold and a fluid injection device for introducing a pressurized fluid and for driving a projectile through the polymer melt introduced into the cavity, the mold comprising a mold wall and a mold core that is arranged at least partially within the mold wall, the projectile being formed at least partially in such a hollow-formed manner that it is arranged on the mold core and is movable along a longitudinal extent of the mold core on the latter. A projectile injection process for producing a hollow-formed plastic object with this injection-molding device and a hollow-formed plastic object produced by this process.

Abstract: A method for producing a sterilized container comprises: providing a preform having a hanger arranged on a bottom of the preform, heating the preform in a heating device, feeding the heated preform into a stretching and blowing apparatus, stretching and blowing the preform in the stretching and blowing apparatus such that the container for the infusion solution is formed from the preform, cleaning the formed container in a rinsing apparatus, and drying the cleaned container in a drying device, filling the cleaned and dried container at least with an infusion solution, via a filling opening present in the container, in a filling plant, closing the container by attaching a closure cap to the filling opening of the container, sterilizing the closed container in an autoclave, wherein the hanger of the preform is oriented and folded over by a bending apparatus prior to stretching and blowing in the stretching and blowing apparatus.

Abstract: A liquid container manufacturing method of manufacturing a liquid container that contains a content liquid from a synthetic resin preform, the method including an inflation body insertion step of inserting an inflation body into the preform; an air discharge step of discharging air out of the preform by inflating an inflation body in the preform; a mouth blocking step of blocking a mouth of the preform; an inflation body contraction step of contracting the inflation body with the mouth blocked; and a liquid blow molding step of molding the preform into a liquid container by supplying a pressurized liquid into the preform through a blow nozzle.

Abstract: A method for forming a bladder comprises providing a mold including a chamber wall having a first height and a cavity wall having a second height. The cavity wall is surrounded by the chamber wall and defines a plurality of cavities. A first sheet, a second sheet, and a gasket are provided to the mold, whereby the gasket is disposed adjacent to at least one of the first sheet and the second sheet. The mold is moved such that a peripheral portion of the at least one of the first sheet and the second sheet and the gasket are compressed by the chamber wall. A first pressure is provided between the first sheet and the second sheet through the gasket to form a plurality of chambers, and the mold is moved to a second position to seal the first pressure between the first sheet and the second sheet.

Abstract: A method and a molding station for producing containers filled with a liquid filling material from preforms made of a thermoplastic material. Thermally conditioned preforms are molded into containers and filled with the liquid filling material, which is supplied to the preforms under pressure as a pressure medium in a multi-part mold of a molding station. The mold is movable from a closed state into an open state in order to repeatedly supply a preform and subsequently remove a completely molded and filled container. Molding of the preform into the container is performed against the mold inner wall when the mold is in the closed state. Liquid is removed from the mold between temporally successive supplying processes starting with the conversion of the mold from the closed state into the open state. A working wheel including such molding stations, and a device including such a working wheel are also disclosed.

Abstract: A flipper assembly that can be used with a package-producing mold, for instance, a mold that is used during thermoforming procedures. The flipper assembly includes a base mounted to the mold, a flipper arm pivotably connected to the base between a first position where the arm is substantially perpendicular to the height of the base and a second position where the arm is substantially parallel to the height of the base, and a spring mounted to the base and the flipper arm. During the thermoforming process, the flipper arm forms an undercut of finger into the package, which improves the stability and strength of the package. The flipper arm is moved between first and second positions based on linear extension and retraction of the spring.

Abstract: A bending method and a bending device, wherein a composite bar comprising a bundle of reinforcing fibres embedded in a polymer matrix is bent at a bending point. To make it bendable, the composite bar is heated locally at the bending point using an ultrasonic device with a sonotrode. After the bending point has been heated, an infeeding movement between the composite bar and the sonotrode is used to deform a region of the composite bar at the bending point to create a deformed portion of which the outer dimensions are different from the outer dimensions of the bar portions of the composite bar adjoining the bending point. The two bar portions are then moved or angled away in relation to one another, and so the composite bar is curved at the bending point. Once the desired bending has been achieved, the composite bar is cured at the bending point.

Abstract: An imprint method includes contact step of bringing imprint material on shot region of substrate and pattern region of mold into contact with each other, alignment step of aligning the shot region and the pattern region after the contact step, first irradiation step of, before the alignment step is completed, irradiating frame-shaped portion of the imprint material with light, second irradiation step, started after the first irradiation step is started, irradiating at least part of the imprint material on the shot region with light under condition different from condition in the first irradiation step so that alignment error between the shot region and the pattern region is reduced, third irradiation step of irradiating the entire imprint material on the shot region with light after the alignment step is completed.

Abstract: Systems and methods of applying a screen protector to a surface, including aligning a first mating surface with a second mating surface within a chamber, creating a vacuum within the chamber, inflating an airbag arranged within the chamber, contacting the first mating surface with the airbag, inflating the airbag to extend towards the perimeter of the first mating surface and second mating surface, and removing all air trapped between the first mating surface and the second mating surface.

Abstract: A method of forming a porous structure involves mixing a solvent with a curable material which disperses in the solvent such that the mixture has greater than 50% solvent content. The mixture is deposited on a substrate and viscosity of the mixture is increased. The curable material in the mixture is cured while a shape of the curable material is maintained by the solvent. After curing, the solvent is removed from the structure.

Abstract: A method of 3D ink jet printing, the method comprising a step of jetting out droplets of a curable liquid onto a substrate in positions that fit into a predetermined raster; and a step of radiation-controlled curing of the liquid, wherein the radiation is applied at spots that also fit into a predetermined raster, wherein the raster that is employed in the curing step has a higher resolution than the raster employed in the jetting step.

Abstract: A method of layerwise fabrication of a three-dimensional object is disclosed. The method comprises, for each of at least a few of the layers: dispensing at least a first modeling formulation and a second modeling formulation to form a core region using both the first and the second modeling formulations, and at least one envelope region at least partially surrounding the core region using one of the first and the second modeling formulations but not the other one of the first and the second modeling formulations. The method can also comprise exposing the layer to curing energy. The first modeling formulation is characterized, when hardened, by heat deflection temperature (HDT) of at least 90° C., and the second modeling formulation is characterized, when hardened, by Izod impact resistance (IR) value of at least 45 J/m.

Abstract: A filament for use in forming a support structure in fused filament fabrication, the filament comprising an amorphous, thermoplastic resin further comprising Bisphenol Isophorone carbonate units and Bisphenol A carbonate units, wherein the Bisphenol Isophorone carbonate units are 30 to 50 mole percent of the total of Bisphenol A carbonate units and Bisphenol Isophorone carbonate units in the resin, and wherein the resin has a glass transition temperature from 165° C. to 200° C. The composition used to form the support filament exhibits a desirable combination of filament formability, printability, lack of significant oozing from the printer nozzle, and good ease of mechanical separation from the build material at room temperature after printing.

Abstract: A filament for use in forming a support structure in fused filament fabrication includes an amorphous, thermoplastic resin having a glass transition temperature from 165° C. to 350° C., and 0.5 to 4.5 weight percent of a high viscosity silicone having a kinematic viscosity from 60,000 to 100 million centistokes. The composition used to form the support filament exhibits a desirable combination of filament formability, printability in additive manufacturing, lack of significant oozing from the printer nozzle, and ease of mechanical separation from the build material at room temperature after printing.

Abstract: Described herein are apparatuses, systems, and methods for fabricating tissue constructs, such as by fabricating perfusable tissue constructs by embedding a sacrificial material into a composite matrix yield stress support bath. A composite matrix bath can include a microgel filler and a hydrogel precursor. An extrusion tip can be used for embedded printing of perfusable tissue constructs by disposing sacrificial material into the composite matrix bath while the extrusion tip travels along a predefined course through the composite matrix bath. This sacrificial material can be the printed tissue construct or can be removed to render the matrix bath a perfusable tissue construct. The composite matrix bath can include acellular or cell-laden hydrogels. The sacrificial material can include a salt and a physiological buffer or a non-cytotoxic porogen material. The hydrogel precursor can include at least one of gellan and gelatin. Cross-linking can be carried out chemically, thermally, enzymatically, or physically.

Abstract: An intelligent feed forward model to control additive manufacturing (AM) laser powder bed fusion process and reduce spattering whereby defects are eliminated by controlling the laser power and reducing spattering through a computer model. This application describes using a proportional integral derivative (PID) controller to create a power map that reduces spattering.

Abstract: The invention relates to an apparatus (10) for producing a three-dimensional workpiece, comprising: a carrier (12) adapted to receive material (14) for producing the workpiece; at least one mobile production unit (24), a moving unit (18) that is adapted to move the mobile production unit (24) relative to the carrier (12) so as to position the mobile production unit (24) oppositely to different sections of the carrier (12); a sensing unit that is adapted to generate sensor signals relating to a relative arrangement of the mobile production unit (24) and the carrier (12); and a control unit that is configured to, in addition to the positioning of the mobile production unit (24) via the moving unit (18), provide at least one fine positioning function to compensate for an offset from a desired relative arrangement of the mobile production unit (24) and the carrier (18) based on the sensor signals generated by the sensing unit.

Abstract: A three-dimensional object that maintains a satisfactory visual color quality when the object is observed at different positions or through different angles, and a three-dimensional shaping apparatus for and a three-dimensional shaping method of shaping such a three-dimensional object are provided. The three-dimensional object includes: a shaping base having a first and second outer surfaces adjacent to each other at an adjacent angle; a first colored layer formed on the first outer surface and including a transparent material colored in a first color; a second colored layer formed on the second outer surface and including a transparent material colored in a second color different from the first color; and a partition layer interposed between the side surfaces of the first colored layer and the second colored layer. The partition layer is opaque and has one of the first color, the second color, and an achromatic color.

Abstract: A supply of build material such as a spool or cartridge is instrumented with a data tag that includes information about the build material. A three-dimensional printer, or a tag reader in communication therewith (directly or indirectly), can read the information from the tag for a determination as to how to use the build material during fabrication of a three-dimensional object.

Abstract: The invention relates to a print head (10) for a 3D printer (1), comprising a feed zone (11) with a feed (12) for feedstock (20) with variable viscosity, a melting zone (14) comprising a heating element (15) and an outlet opening (16) for the liquid phase (22) of said feedstock (20), as well as a conveyor device (30) for conveying the feedstock (20) from the feed zone (11) into the melting zone (14), said conveyor device (30) comprising a plunger (31) that can be inserted into said feed zone (11).

Abstract: Methods and systems for producing a structure having selectable piezoelectric properties via additive manufacturing. Such methods can include coupling an ultrasound generating device to a print head of the additive manufacturing apparatus; transmitting acoustic energy from the ultrasound generating device to the print head to vibrate the print head in an oscillatory manner; extruding a feed material from the print head; moving the print head in at least one dimension relative to a substrate on which the structure is being manufactured; and dispensing layers sequentially on top of each other to form the structure. Such systems can include an additive manufacturing apparatus comprising a print head movable in at least one dimension relative to a base configured to support the structure being produced; and an ultrasound generating device that is connected to the print head.

Abstract: A method of assembling a three-dimensional printing system includes providing a plurality of components, providing a plurality of spacer rings, and measurement, analysis and assembly steps. The components include a light engine, an adaptive support apparatus, a plurality of elongate struts, and a support plate. The measurement, analysis and assembly steps include (1) measuring a scale factor for the light engine, (2) determining a selection of one or more of the spacer rings based upon the measured scale factor, and (3) assembling the components with the determined selection of one or more spacer rings.

Abstract: A three dimensional printer includes a projector, an adaptive support apparatus, a resin support apparatus, and a plurality of vertical struts. The projector includes a projection lens module which includes an optical housing that contains a series of lenses for projecting an image from the projector onto a build plane. The projection lens module includes a laterally extending flange having an upwardly facing flange surface. The adaptive support apparatus includes a downward facing surface in facing relation with the upward facing flange surface. The resin support apparatus is configured to contain resin and includes a transparent sheet and a downward facing surface. The transparent sheet defines a lower bound for the resin proximate to a build plane. The plurality of vertical struts couple an upward-facing surface of the adaptive support apparatus to the downward-facing surface of the resin support apparatus.

Abstract: A powder dispensing assembly for an additive manufacturing machine includes a hopper defining a powder reservoir for receiving additive powder and a plurality of powder distribution modules operably coupled with the hopper. The powder distribution modules include a powder distribution body defining a discharge orifice and a supply gate that fluidly couples the powder reservoir to the discharge orifice. A plunger valve is movably mounted over the discharge orifice and an actuator moves the plunger valve between an open position and a closed position to selectively dispense a flow of additive powder.

Abstract: Systems and methods for tuning photolithographic processes are described. A model of a target scanner is maintained defining sensitivity of the target scanner with reference to a set of tunable parameters. A differential model represents deviations of the target scanner from the reference. The target scanner may be tuned based on the settings of the reference scanner and the differential model. Performance of a family of related scanners may be characterized relative to the performance of a reference scanner. Differential models may include information such as parametric offsets and other differences that may be used to simulate the difference in imaging behavior.

Abstract: An additive manufacturing system is configured to manufacture a component. The additive manufacturing system includes a build platform, a recoater, a monitoring camera, and a controller. The component is disposed on the build platform. The recoater includes a recoater blade configured to spread a powdered build material across the build platform and the component forming a powder bed. The monitoring camera is positioned to image the recoater blade. The monitoring camera is configured to acquire a plurality of images of the recoater blade. The controller is configured to receive the plurality of images from the monitoring camera. The controller is configured to detect defects in the powder bed based on the plurality of images received from the monitoring camera.

Abstract: A method of controlling an additive manufacturing process in which a directed energy source is used to selectively melt material to form a workpiece, forming a melt pool in the process of melting, the method including: using an imaging apparatus to generate an image of the melt pool comprising an array of individual image elements, the image including a measurement of at least one physical property for each of the individual image elements; from the measurements, mapping a melt pool boundary of the melt pool; and controlling at least one aspect of the additive manufacturing process with reference to the melt pool boundary.

Abstract: A method of controlling an additive manufacturing process in which a directed energy source is used to selectively melt material to form a workpiece, forming a melt pool in the process of melting, the method comprising: using an imaging apparatus to generate an image of the melt pool comprising an array of individual image elements, the image including a measurement of at least one physical property for each of the individual image elements; from the measurements, mapping a melt pool boundary of the melt pool; computing a fractal dimension of the melt pool; and controlling at least one aspect of the additive manufacturing process with reference to the fractal dimension.

Abstract: A method of controlling an additive manufacturing process in which a directed energy source is used to selectively melt material to form a workpiece, forming a melt pool in the process of melting, the method comprising: using an imaging apparatus to generate an image of the melt pool comprising an array of individual image elements, the image including a measurement of at least one physical property for each of the individual image elements; from the measurements, mapping a melt pool boundary of the melt pool; computing a algebraic connectivity of the melt pool; and controlling at least one aspect of the additive manufacturing process with reference to the algebraic connectivity.

Abstract: A method of controlling an additive manufacturing process in which a directed energy source is used to selectively melt material to form a workpiece, forming a melt pool in the process of melting, the method comprising: using an imaging apparatus to generate an image of the melt pool comprising an array of individual image elements, the image including a measurement of at least one physical property for each of the individual image elements; from the measurements, mapping a melt pool boundary of the melt pool; computing a geometric length of the melt pool boundary; and controlling at least one aspect of the additive manufacturing process with reference to the geometric length.

Abstract: A method of controlling an additive manufacturing process in which a directed energy source is used to selectively melt material to form a workpiece, forming a melt pool in the process of melting. The method includes: using an imaging apparatus to generate an image of the melt pool comprising an array of individual image elements, the image including a measurement of at least one physical property for each of the individual image elements; from the measurements, mapping a melt pool boundary of the melt pool; applying Green's theorem to the melt pool boundary; and controlling at least one aspect of the additive manufacturing process with reference to the Green's theorem application.

Abstract: A method of controlling an additive manufacturing process in which a directed energy source is used to selectively melt material to form a workpiece, forming a melt pool in the process of melting. The method includes: using an imaging apparatus to generate an image of the melt pool comprising an array of individual image elements, the image including a measurement of at least one physical property for each of the individual image elements; using a software machine learning algorithm to classify each image as acceptable or unacceptable; and controlling at least one aspect of the additive manufacturing process with reference to the image classification.

Abstract: Printers are disclosed. An example printer includes a build controller to access metrics of a layer on a work area and to select a dosing profile from a plurality of dosing profiles to fuse the layer based on the metrics.

Abstract: Provided is a powder bed fusion apparatus capable of performing proper temperature control of a modeling region with a heater based on temperatures measured by temperature sensors.

Abstract: This document describes systems and method of embedded printing for additive manufacturing. A print material is printed into a support material. The print material and the support material each have a fluid phase and a solid phase. The print material transitions from the fluid phase to the solid phase based on a fluid-fluid interaction with the support material. One or more parameters of the support material can be adjusted to cause a diffusion rate of the print material into the support material during the fluid-fluid interaction to be less than a threshold value. Multiple print materials can be printed into the support material simultaneously.

Abstract: An optical waveguide is configured such that when electromagnetic radiation enters a first end face of an optical core, an initial portion of the electromagnetic radiation exits the optical core via a peripheral surface, and a final portion of the electromagnetic radiation, remaining in the optical core after the initial portion of the electromagnetic radiation exits the optical core, exits the optical core via a second end face.