Abstract: Methods of making molded objects, such as composite ammunition casings for firearms, are disclosed. Apparatus for performing methods of making molded objects, such as composite ammunition casings for firearms, are also disclosed. Molded objects, such as composite ammunition casings for firearms, are further disclosed.

Abstract: A method for managing an apparatus for the injection molding of plastic materials comprising at least one injector including a pin valve displaceable between a fully closed position and an open position of the injector, an actuator for operating the pin valve of the injector, and an electronic control unit of the actuator. The method provides for the steps of providing an auxiliary power supply and configuring said electronic control unit so as to operate, in case of failure of the mains power supply, an emergency command by virtue of which the pin valve of the injector is positioned in said fully closed position by means of said auxiliary power supply.

Abstract: In an injection molding machine, a predetermined torque limit value set in advance and acceleration/deceleration torque calculated by an acceleration/deceleration torque calculation section are added to set an output torque limit value for a motor. By this operation, quick acceleration or deceleration can be achieved in an injection process, and breakage of a mold and mechanism section of the injection molding machine can be prevented.

Abstract: There is provided a multi-material molding machine performing multi-material molding, and when it is detected that an injection molding machine and an injection unit are not mechanically connected to each other, an operation of the injection unit is regulated. As a result, even if the injection unit is separated from an injection molding machine body, risk of a work in maintenance and repair works of the injection unit can be reduced.

Abstract: A device, and a corresponding method, for supporting and/or guiding a plastics profile in a calibration station and/or other downstream devices, has at least one support unit in the calibration station and/or in at least one of the downstream devices. The support unit has at least one support element, and the support element is disposed on a beam and can be moved in a parallel manner toward or away from the theoretical central axis, the extrusion axis.

Abstract: The present invention is aimed at an adjustment system, in particular for adjusting the distance apart of at least two guide mechanisms for the transport of, for instance, preforms for plastics containers, wherein the at least two guide mechanisms are respectively connected to a setting unit, and wherein the setting unit comprises in each case at least one piston-like element, which is pneumatically movable to and fro between a first stop and a second stop within the setting unit.

Abstract: A valve (200) for a blow molding machine (100) and a method for actuating the same are provided. The includes a housing (202) having an inlet (204) and an outlet (206), a piston (208) movable inside the housing (202), and a pressure compensation chamber (218) positioned between the pressure compensation end (220) of the piston (208) and the housing (202). The piston (208) includes a pressure compensation end (220), a valve seat end (222), and a pressure compensation bore (210). The pressure compensation chamber (218) is in fluid communication with the inlet (204) via the valve seat end (222) of the piston (208) via the pressure compensation bore (210). The piston (208) is configured to actuate independently of an inlet fluid pressure (236).

Abstract: A one-piece mould element (3, 7) for a mould (1) for manufacturing containers from blanks of plastic material by blow moulding or stretch blow moulding. The mould element (3, 7) includes a one-piece moulding wall (4, 8) having a raised moulding surface (5, 9) bearing the imprint of at least one portion of a container, the moulding wall (4, 8) having at least one decompression vent (20) extending therethrough, the hole leading, via an inner opening (21), onto the moulding surface (9), which is provided in the form of a slot.

Abstract: Method of manufacturing containers by blow-molding in a mold starting from a plastic blank, involving, when manufacturing a container: —a step of introducing a blank into a mold; —at least a step of placing the inside of the blank in communication with at least one fluid circuit by an solenoid valve associated with the circuit; —at a predetermined moment, referred to as the solenoid valve opening pulse (TEV1; . . . ; TEV4), sending a command to open to the solenoid valve which has a theoretical opening delay (Dt1; . . . ; Dt4), the method including steps involving: —calculating the actual opening delay (De1; . . . ; De4) of the solenoid valve; —calculating a difference (?t1; . . . ; ?t4) between the actual opening delay (De1; . . . ; De4) and the theoretical opening delay (Dt1; . . . ; Dt4); and —if the calculated difference is greater than a maximum permissible difference, emitting notification that a maximum permissible difference has been exceed.

Abstract: An expanding tool comprising: an actuator comprising a cylindrical housing that defines an actuator housing cavity; a primary ram disposed within the actuator housing cavity, the primary ram defining an internal primary ram cavity; a secondary ram disposed within the internal primary ram cavity; a cam roller carrier coupled to a distal end of the secondary ram; a drive collar positioned within a distal end of the actuator housing cavity; a roller clutch disposed within an internal cavity defined by an inner surface of the drive collar; a shuttle cam positioned between the roller clutch and a distal end of the primary ram; an expander cone coupled to the primary ram; and an expander head operably coupled to the drive collar. When triggered, the actuator first rotates the expander head and then the actuator expands the expander head.

Abstract: Provided is a fiber sheet for molding, characterized in that a print resin is applied on the surface of the fiber sheet containing highly crimped fibers, and the amount of the print resin is 30 g/m2 or less, and the air permeability of the fiber sheet is 5 to 30 cm3/cm2/sec. The fiber sheet for molding can be molded without generating wrinkles, and has a good sound absorbing property. When a pattern is formed with the printing resin, the fiber sheet for molding is also excellent in design properties.

Abstract: A weld-in part (1) is positioned between two film layers (12, 13) in the edge area of the latter and brought between a two-part tool (14, 15) whose tool parts (14, 15) are capable of being moved from an open position to a closed position substantially perpendicularly to the film layers (12, 13). The weld-in part (1) has a sealing region that is conical in longitudinal section, and the cross-sectional shape and the cone angle of the interior space of the closed tool (14, 15) correspond to the cross-sectional shape and the cone angle of the sealing region. After closing the tool (14, 15), the weld-in part (1) is moved parallel to the parting plane of the tool (14, 15) and brought into contact with the tool via the intermediate film layers (12, 13). In this manner, an accurate fit and a gapless enclosure of the parts that are to be connected (14, 15) is achieved in the tool independently of the dimensional tolerances of the weld-in part and of the film layers (12, 13).

Abstract: Apparatus for forming transversal welds on a composite web material, comprising at least two superimposed sheets of material, suitable for use in the production of sanitary articles, comprising: a feeding unit including first and second feeding means configured to advance the composite web along a main straight direction X at a speed V1. an ultrasonic welding unit 80 arranged between the first and second feeding means, comprising at least one ultrasound source coupled to a sonotrode having a flat welding surface and an anvil unit having at least one anvil element movable along a closed path, which has a straight portion parallel to the main direction X.

Abstract: The present invention concerns A sonotrode with a wheel-shaped portion having a wheel axis and of a diameter d, which has two substantially circular main surfaces and a substantially cylindrical sealing surface of the width b, that connects the main surfaces. To provide a corresponding sonotrode in which the triangular frequency differs markedly from the main frequency it is proposed according to the invention that at least one main surface has a non-central thickened portion which in a sectional view perpendicularly to the main surface has a convex region which is not arranged on the wheel axis.

Abstract: A fiber placement system including a compaction roller rotatable about an axis of rotation, the compaction roller at least partially defining a compaction nip region, and a laser heating assembly including a laser that emits a beam of electromagnetic radiation and a scan head defining a scan field, the scan field being aligned with the compaction nip region, wherein the scan head scans the beam within the scan field.

Abstract: The present invention concerns an apparatus for ultrasonic processing of a material web having an ultrasonic vibration unit which has a sonotrode and a converter connected thereto optionally by way of an amplitude transformer, and a counterpart tool, wherein for processing of the material web the web is moved through a gap between the sonotrode and the counterpart tool, wherein the ultrasonic vibration unit is fixed to a carriage moveable relative to the counterpart tool so that the ultrasonic vibration unit can be moved together with the carriage in the force direction, that is to say in the direction of or away from the counterpart tool, wherein there is provided a force sensor for measuring the force applied to the sonotrode by the material web.

Abstract: A method for producing a three-dimensional overall structure (18) by a structuring device (10a, 10b), which has a predefined principal direction (16) of the structure entry in a writing region (20). The overall structure (18) is defined by sequential definition of a plurality of partial structures (22) that complement one another overall to form the overall structure (18). The partial structures (22) are delimited in each case within enveloping interfaces (36). In this case, the partial structures (22) are chosen in such a way that the enveloping interfaces (36) extend obliquely with respect to the principal direction (16) of the structure entry.

Abstract: A three-dimensional object may be generated. A controller may be to control an energy source to apply energy to a layer of build material on a support member or previous layer to cause a portion of the layer to coalesce and solidify to form a slice of the three-dimensional object. A radiation sensor may be to measure absorbance or gloss of the layer. The controller may be to receive, from the radiation sensor, data representing measured absorbance or measured gloss of the layer. The controller may be to control the apparatus to modify a process parameter if the measured absorbance or gloss indicates an incorrect degree of solidification of a part of the layer.

Abstract: This invention relates to rapid prototyping systems, specifically, a continuous moving surface liquid resin system (CMSL) and fast printing method for making any 3D objects, such as dental devices, including but not limited to artificial teeth, dentures, orthodontic appliances, aligners, splints, veneers, inlays, onlays, copings, frame patterns, crowns and bridges and the like. 3D printers, such as DLP or stereolithography printer, are used to cure polymerizable material in a layer-by-layer manner to build-up the object rapidly and continuously.

Abstract: A solid imaging apparatus and method employing levels of exposure varied with gray scale or time or both of digitally light projected image of a cross-section of a three-dimensional object on a solidifiable photopolymer build material. The gray scale levels of exposure of projected pixels permits the polymerization boundaries in projected boundary pixels to be controlled to achieve preserved image features in a three-dimensional object and smooth out rough or uneven edges that would otherwise occur using digital light projectors that are limited by the number of pixels in an image projected over the size of the image. Software is used to control intensity parameters applied to pixels to be illuminated in the image projected in the cross-section being exposed in the image plane.

Abstract: A device, method and layered product produced from the method are disclosed. The method uses new fabrication steps involving stratified additive manufacturing. Steps include preparing continuous ribbons of solid first material and possibly a second material; rolling continuous ribbon onto a spool held within a feeder cassette configured to dispense continuous ribbon through a slit; loading each feeder cassette onto an engagement dock; dispensing on the bed of the machine a first strip of continuous ribbon; cutting it to a length and having an end profile as directed by digital specification programmed on the machine; and creating a layered object by dispensing, cutting and applying additional strips of continuous ribbon atop the previously dispensed strips in accordance with the digital specification. The apparatus includes a computer numerical control machine feeding strips of ribbon from the feeder cassettes loaded in an engagement dock.

Abstract: Provided is a method capable of enhancing the quality (interlaminar strength, void reduction) of a lamination shaped article and using a high-heat resistant resin, and which has low cost and good quality and does not use a process window, and enhances release properties of a support. A laser powder shaping method for fabricating a lamination shaped article, the method having a step for providing a powder material as a thin layer and a laser irradiating step for irradiating the provided powder material with a laser and thereby sintering or melting the powder material, the laser powder shaping method characterized by having a step for performing a surface modification treatment for generating or increasing the number of oxygen functional groups in a region irradiated by the laser before or after the step for providing the powder material, or before or after the laser irradiation step.

Abstract: An additive manufacturing system and method of operation includes a build table for supporting a powder bed that is packed through the use of a vibration inducing device proximate to the build table. Through this packing, voids of the bed produced by larger particles of a mixed powder are filled with smaller particles. After or during such packing of particles, the powder bed is leveled utilizing a leveling arm, then selected regions of the bed are melted utilizing an energy gun.

Abstract: In some examples, a method for forming a carbon fiber preform comprises depositing a composite material on a substrate to form a first layer of the composite material, wherein the composite material comprises a carbon reinforcement material mixed in a resin matrix material; and depositing the composite material on the first layer to form a second layer on the first layer, wherein the carbon fiber preform includes the first layer of the composite material and the second layer of composite material, and includes the carbon reinforcement material and the resin matrix material.

Abstract: Methods and systems (2) are disclosed for making articles (114) by three-dimensional printing. The methods include selectively printing by jet deposition on successive layers (4) of a build material powder (10) at least one of a first binder fluid and a second binder fluid. At least one of the first and second binder fluids includes a particulate matter (16) having mean particle size diameter which is less than that of the build material powder (10). The first binder fluid is characteristically different from the second binder fluid. The particulate matter (16) selectively deposited with a binder fluid can be used to locally tailor the physical properties of the article (114), e.g. by alloying with the build material powder, increasing densification, acting as a local infiltrant or infiltrant stop during heat treatment, locally modulating the local stress fields (e.g. by a mismatch of thermal coefficients of expansion), etc.

Abstract: A three-dimensional object may be generated. Energy may be applied to a layer of build material to cause a first portion of the layer to coalesce and solidify in a first pattern. A cooling agent may be selectively delivered on a second portion of the layer of the build material to reduce a temperature of the second portion in a second pattern, the first and second patterns being independent of each other.

Abstract: An apparatus for generating a three-dimensional object is provided. The apparatus may include a housing having a surface defining a build receiver to receive differently-sized build modules or to receive a plurality of build modules. The build modules may each include a build chamber to receive a layer of build material from a build material distributor. The apparatus may include an agent distributor to selectively deliver a coalescing agent onto portions of the layer of build material to be received from the build material distributor such that when energy is applied to the layer the portions of the layer coalesce and solidify to form a slice of the three-dimensional object.

Abstract: Examples are described that generate control data (280) for production of a three-dimensional object. Build material profile data (260) is accessed for an indicated build material. The build material profile data for a given build material defines one or more parameter values that are dependent on the properties of the given build material and that are configured to generate a three-dimensional object with predefined build properties. Certain examples are arranged to generate control data for the production of a three-dimensional object by applying build material profile data to received object data (230).

Abstract: Provided is an apparatus for feeding/discharging a filament for a 3D printer, including a filament supply part which winds the wire-shaped filament and supplies the wound filament; a filament output part which outputs a three-dimensional printed matter by melting and discharging the filament supplied from the filament supply part; and a driving part which supplies the filament from the filament supply part to the filament output part, and discharges the filament from the filament output part toward the filament supply part, wherein the driving part includes a driving motor which is provided at the filament output part to generate a driving force and thus to adapt the filament to be conveyed in a normal direction or a reverse direction; a driving roller which is provided at the filament output part to receive the driving force of the driving motor and to convey the filament in the normal direction or the reverse direction; a conveying roller which is provided at the filament supply part to receive the driving

Abstract: Systems and techniques relating to three dimensional (3D) delta printers, such as Fused Filament Fabrication (FFF) 3D delta printers include, in at least one aspect, a 3D delta printer that includes a build platform; a 3D printer delta motion system; and a space frame configured and arranged to support the 3D printer delta motion system as the 3D printer delta motion system moves relative to the build platform; wherein the space frame includes multiple triangular units surrounding a build volume above the build platform.

Abstract: The invention relates to a method for constructing a three-dimensional object (3) in layers from a pulverulent construction material by solidifying layers of the pulverulent construction material in a successive manner at each layer point which corresponds to a cross-section of the object, wherein the solidification process is carried out by introducing thermal energy. The method has the following step: solidifying all the layer points which correspond to a cross-section of the object. The introduced thermal energy quantity is adjusted at least in a sub-region of the layer dependent on the duration of the previous solidification step for the previous powder layer or dependent on the current solidification step duration, which is calculated in advance.

Abstract: A three-dimensional object may be generated. Coalescing agent may be selectively delivered on a portion of a first layer of build material on a support member or previous layer. Energy may be applied to the first layer to cause the portion of the first layer to coalesce and solidify. A second layer of the build material may be provided on the first layer. While the second layer does not have coalescing agent delivered thereon, energy may be applied to the second layer such that energy may propagate through the second layer to the first layer to cause the portion of the first layer to coalesce and further solidify.

Abstract: A system is provided for additively manufacturing a part. This additive manufacturing system includes a base, a solidification device and a detection device. The base is adapted to support material; e.g., powder material. The solidification device is adapted to solidify at least a portion of the supported material to form at least a portion of the part. The detection device is adapted to detect emissions produced by the solidification of at least a portion of the material.

Abstract: Firstly, a custom designed 3D printer with x-y-z gantry robot with an accuracy of 0.1 ?m was adapted with a custom designed printing head (51b). Secondly, a two component silicone elastomer suitable for RP was developed that incorporates the desired characteristics and properties similar to those commercially available for the provision of facial and body prostheses. The silicone elastomer is composed of polydimethylsiloxane (PDMS) chains, filler, catalyst and crosslinker. By varying the amount of these components the mechanical properties of the silicone elastomer can be altered, for example, tensile strength, tear strength, hardness and wettability. To achieve these desired properties consideration must also be given to the set time and viscosity of the silicone elastomer and additionally the speed at which the material is printed.

Abstract: Nozzle data relating to a nozzle of an agent distributor to be used to deliver agent may be received, and data representing a three-dimensional object may be modified to cause the three-dimensional object to be shifted such that the nozzle is not to be used to generate the three-dimensional object.

Abstract: A controller may be to receive temperature data representing a temperature distribution of at least part of a current layer of build material that is measured by a temperature sensor. The controller may be to determine one or more weighting factors representing a degree of influence of each of one or more previous layers of the build material beneath the current layer on a property of the current layer. The controller may be to identify one or more regions in the current layer based on the one or more weighting factors and based on how the property is exhibited by each of the one or more regions. The controller may be to cause the current layer to achieve a target temperature if the temperature data in a selected region of the identified one or more regions does not match the target temperature.

Abstract: Disclosed are an apparatus and method for generating a bitmap of a three-dimensional (3D) model. The apparatus for generating a bitmap of a 3D model includes a plane generator configured to generate a plurality of planes including an outline of a cross section obtained by cutting a 3D model in a direction parallel to an output direction of a 3D printer, a rasterizer configured to rasterize the plurality of planes in a direction perpendicular to the output direction, calculate a weight of a pixel using a weight transition point based on outline segments constituting the outline, and determine a type of each pixel generated through the rasterization based on the weight, and a bitmap generator configured to merge pixels having the same coordinate in the output direction to generate a bitmap for a plane perpendicular to the output direction.

Abstract: Additive manufacturing system for manufacturing a three dimensional object (10). A resin depositor (14) is present for depositing a layer of curable resin (6) on a first side (2a) of a foil substrate (2). The foil substrate (2) is supported by a transparent support plate (4), and a radiation source (5) is disposed for radiation curing the resin layer (6). A stage (12) is configured to hold a stacked arrangement of one or more cured resin layers representing at least in part the three dimensional object (10) and a positioning system is provided for relative positioning the foil substrate (2) and the stage (12). A masking screen (8) disposed substantially parallel to the resin layer (6) is present for blocking at least in part incident radiation on the resin layer (6) in correspondence with a cross sectional slice of the object (10).

Abstract: A device and method for removing 3D prints from the build plate of a 3D printer comprising a sheet of flexible material sized and shaped to receive 3D print material and to fit atop the build plate of the 3D printer.

Abstract: A method of forming a transparent 3D object and a transparent 3D object formed by the method are provided. A transparent 3D object may be formed as follows. An internal structure of a 3D object is printed using a 3D printer based on a 3D image file having information about an internal region of the 3D object, and a mold, designed to form the 3D object and divided into at least two regions, is printed using the 3D printer based on the 3D image file. Then, the internal structure is combined with an inner region of the mold, and a transparent material is supplied to the mold. After the transparent material hardens, a transparent 3D object is obtained by removing the mold.

Abstract: A fiber reinforced plastic material is provided, the material including a fiber layer comprising a plurality of continuous carbon fiber reinforced thermoplastic sheets, a veil layer comprising fibers selected from at least one of glass fiber and carbon fiber, and a resin layer comprising a resin film, wherein the veil layer is impregnated by at least a portion of the resin film.

Abstract: Disclosed are filament winding processes that use a low viscosity polyurethane-forming composition, systems for making a composites and the composites so made.

Abstract: A rim well with integrated flange made of fiber composite as well as to a method for manufacturing same. The flange is formed by inwardly directed protuberances of fiber layers of the rim well, wherein the fiber layers transition to the flange from the rim well without interruption of the fibers. The manufacture is carried out by depositing fiber material on a mold, which corresponds to the contour of the rim well and has a radially circumferential or segmented groove. The fibers are deposited such that the fibers of at least one fiber layer have protuberances directed into the groove. A multipart mold, which makes it possible to reduce the width of the groove and thus a deformation of the protuberances, is preferably used.

Abstract: A method of forming composite components is described in which a composite lay-up is created using varying fibre types across the lay-up. This can adapt the lay-up to forming processes in regions of the lay-up to be formed and uses fibre types which give the greatest strength benefits in areas which do not need to be formed. Regions not requiring forming may have binders in them activated prior to a forming step or steps, after which the formed regions may be impregnated with a matrix and the component cured.

Abstract: Apparatuses and methods for making reinforcement structures are provided. In one example, an apparatus for making a reinforcement structure includes a rigid mandrel and a flexible bladder. The flexible bladder at least partially surrounds the rigid mandrel for supporting a reinforcement structure-forming material during fabrication of the reinforcement structure. The flexible bladder is configured to apply a force to the reinforcement structure-forming material in a direction opposite the rigid mandrel in response to a pressure differential between inside and outside of the flexible bladder.

Abstract: A compaction device for use with an automated fiber placement machine includes multiple compaction rollers mounted for independent displacement on a supporting frame. The attitude of the compaction rollers change relative to each other when fiber tows are laid up at an angle over an edge of a tool in order to maintain compaction pressure on the tows and thereby reduce non-compacted areas of the tows.

Abstract: A core (20) and a bag (22, 24) are provided which are used to shape an FRP structure (10; 30). The bag (22, 24) has a core bag section (24) which covers the outer circumference of the core (20), and a coverture bag section (22) which covers a plurality of fiber components (12, 14; 12, 14, 16).

Abstract: A wheel with a rim as well as a wheel spider, where the wheel spider has a hub and spokes. The wheel includes spokes including one or more linearly stretched textile strands as reinforcement material of a fiber composite and each linearly stretched textile strand runs at least once from the rim to the hub and back without interruption and thus forms at least one spoke. The textile strands are connected in a positive-locking manner and/or in substance with the hub and the rim. A process is provided for the manufacture of the wheel.

Abstract: A container for sealant liquid to repair an inflatable article, preferably pneumatic, comprises a shell defining an inner volume for a sealant liquid, an inlet port for introduction of a gas under pressure into the inner volume, an outlet port for injection of the sealant liquid after pressurisation of the inlet port and a flexible tube connected to the outlet port. The container also comprises a case detachable from the shell and surrounding the flexible tube when it is connected to the shell.

Abstract: The present invention relates to a method of manufacturing a contact lens including the steps of: (i) adding reactive components to a mold, wherein the reactive components comprise (a) at least one hydroxy-containing silicone component having a weight average molecular weight from about 200 to about 15,000 g/mole and (b) at least one mono-ether terminated, mono-methacrylate terminated polyethylene glycol having a weight average molecular weight from about 200 to about 10,000 g/mole; (ii) curing the reactive components within the mold to form the contact lens; and (iii) removing the contact lens from said mold.