Abstract: Methods of producing bioresorbable porous biocomposites for orthopaedic applications are provided. In an exemplary embodiment of a resorbable orthopaedic implant of the present disclosure, the implant comprises a porous alloy of at least a first metal and a second metal sintered together, the alloy configured to resorb into a body at substantially an atomic level without flaking off, wherein a porosity of the implant is defined by a first plurality of interconnected holes having a first range of sizes.

Abstract: A method of producing a compound material including at least one metal and at least one polymer includes: 3D-printing a 3D lattice of the at least one metal; and introducing the at least one polymer into the 3D-lattice.

Abstract: A device for producing a three-dimensional laminate for the construction industry from a plurality of layers of particulate material, which layers are arranged one on top of the other on a printing platform, are consolidated in locally predetermined regions, and are bonded to one another to form a three-dimensional laminate. The device includes a printing frame and at least two coating devices for applying the particulate material layer by layer on the printing platform. The at least two coating devices are movably mounted on the printing frame, preferably along a longitudinal guide. A printing head is provided for discharging a binder at the locally predetermined regions, and the printing head is movably mounted on the printing frame, preferably along at least one longitudinal guide. The at least two coating devices and the printing head are in each case movable in relation to one another.

Abstract: An open-pored metal body, which is formed having a core layer (A) consisting of Ni, Co, Fe, Cu, Ag or an alloy formed having one of said chemical elements, wherein one of said chemical elements is present in the alloy at more than 25 at %, and a gradated layer (B) is formed on surfaces of the core layer (A), said gradated layer being formed by intermetallic phase or mixed crystals of Al, and a layer (C), which is formed having aluminum oxide, is formed on the gradated layer (B).

Abstract: A template for growing Group III-nitride semiconductor layers, a Group III-nitride semiconductor light emitting device and methods of manufacturing the same are provided. The template for growing Group III-nitride semiconductor layers includes a growth substrate having a first plane, a second plane opposite to the first plane and a groove extending inwards the growth substrate from the first plane, an insert for heat dissipation placed and secured in the groove, and a nucleation layer formed on a partially removed portion of the first plane.

Abstract: A method for manufacturing a fiber-reinforced hollow structural component includes introducing a mold core and fibers with a matrix material into a molding tool. A first fiber unit is located between the mold core and the molding tool to at least partially form a component wall. The matrix material is cured to form the hollow structural component and the mold core is flushed out of the hollow structural component to form a component cavity. At least one channel may extend through the mold core so that after the matrix material has cured and the mold core has been flushed out, a reinforcing strut is formed. A related hollow structural component is also disclosed.

Abstract: The invention relates to a method, a device and a binding agent system for producing three-dimensional models.

Abstract: Spherical grains and sacrificial particles are mixed in a suspension. The sacrificial particles are larger than the spherical grains. The suspension is injected into a channel in a microfluidic chip, and the spherical grains form microporous structures in the channel. The microporous structures are sintered in the channel. A solvent is injected into the channel, and the solvent dissolves the sacrificial particles and forms macropores between at least some of the microporous structures, thereby forming a mixed-porosity microfluidic chip.

Abstract: The invention relates to a method of manufacturing at least one tank with a shell, in particular a turbojet engine oil tank. The method comprises the following stages: (a) definition of different shell sections (58) for each tank, whereof a first shell section (58) has a recess (60) and a second shell section (58) a boss (62); (b) production of the shell sections (58) by additive manufacturing in which the boss (62) on the second shell section is produced in the recess (60) in the first shell section; then (c) welding of the sections (60) one to the other.

Abstract: A method of making a powder metal bearing support insert includes filling a tool and die set with a powder metal. A compact is compacted from the powder metal using the tool and die set in which the compact includes a body having a pair of opposing ends on lateral sides thereof, a bearing-receiving surface positioned on a side of the body between the pair of opposing ends in which the bearing-receiving surface is for reception of a bearing therein, and a pair of holes extending through the body wherein each of the pair of holes are formed by sets of adjacent interdigitated slots having regions that abut one another to form a connected passageway therethrough that define the respective hole. The compact is sintered to form the powder metal bearing support insert. The powder metal bearing support insert may be cast into an engine component.

Abstract: Carbon fiber composite additives, media incorporating the carbon fiber composites, and related methods are provided herein. In some aspects, a composition includes at least one medium; and a carbon fiber composite incorporated with the at least one medium, the carbon fiber composite including one or more carbon fibers with an epoxy resin matrix applied thereto to produce a composition having improved characteristics and filtration performance.

Abstract: Provided is a method for processing and manufacturing a metal structural material by knitting metal wires into metal screen mesh strips, tightly coiling the metal screen mesh strips to form a coiled blank body which is coated layer-by-layer and in which an outer-layer material tightly covers an inner-layer material; sintering the coiled blank body; reducing gaps within the coiled blank body material by plastic processing to reach a porosity that fulfills requirements, and manufacturing mechanical structural parts therefrom.

Abstract: An adhesive film includes a porous metal layer having a plurality of pores therein, a first adhesive layer on one side of the porous metal layer, an adhesive substance at least partially filling the pores of the porous metal layer, and a plurality of first thermal conductive members distributed in the first adhesive layer.

Abstract: In some examples, at least one agent distributor may be to selectively deliver mixtures of coalescing agent and carrier onto portions of a layer of build material at variable coalescing agent concentrations and variable contone densities. A controller may be to control the at least one agent distributor to selectively deliver the mixture to a portion of the layer at a selected coalescing agent concentration and a selected contone density.

Abstract: The present application provides a method for manufacturing a metal foam. The present application can provide a method for manufacturing a metal foam, which is capable of forming a metal foam comprising uniformly formed pores and having excellent mechanical properties as well as the desired porosity, and a metal foam having the above characteristics. In addition, the present application can provide a method capable of forming a metal foam in which the above-mentioned physical properties are ensured, while being in the form of a thin film or sheet, within a fast process time, and such a metal foam.

Abstract: A multi-material three-dimensional printing apparatus is provided. The provided apparatus includes two or more print stations. Each of the print stations includes a substrate, a transportation device, a dispersion device, a compaction device, a printing device, a fixing device, and a fluidized materials removal device. The apparatus also includes an assembly apparatus in communication with the two or more print stations via the transportation device. The apparatus also includes one or more transfer devices in communication with the assembly apparatus. The apparatus also includes a computing and controlling device configured to control the operations of the two or more print stations, the assembly apparatus and the one or more transfer devices.

Abstract: A method for additive manufacturing includes: forming a three-dimensional object by: depositing a layer of a powdered build material onto a surface; selectively depositing a liquid comprising a susceptor onto the layer of the powdered build material in a pattern; and heating the object by electromagnetic radiation with a microwave or radio wave frequency, in an atmosphere including oxygen, to a temperature sufficient to sinter the powdered build material.

Abstract: A fabrication device includes a build surface for production of a 3-dimensional solid component, a material delivery system configured to deposit one or more build materials on the build surface, at least one of the one or more build materials being a photocurable material, a first imaging component having a first resolution, and a second imaging component having a second resolution different from the first resolution. In this configuration, the first imaging component and the second imaging component are operable individually and in combination together to selectively irradiate the photocurable material to at least partially solidify successive layers of the 3-dimensional solid component In one example, the lower resolution imaging component solidifies bulk interior regions and the higher resolution component solidifies detailed borders.

Abstract: In some examples, a build material recycling system of a three-dimensional (3D) printer can include a build material transport system of the 3D printer, a build material recycling device of the 3D printer that includes a fluidizing membrane and is connected to the build material transport system, and a recycled build material hopper of the 3D printer connected, via the build material transport system, to the build material recycling device.

Abstract: The present disclosure describes an apparatus (10) for additively manufacturing a three-dimensional object. The apparatus (10) includes a radiation source (13), a carrier (1) on which the three-dimensional object is made, an applicator assembly (3) configured to apply a polymerizable liquid, and a frame (8), with the applicator assembly and the radiation source connected to the frame. A first drive assembly (4) interconnects the applicator assembly and the frame and a second drive assembly (2) interconnects the carrier and the frame. The frame defines a build region (6) between the applicator assembly and the carrier. The applicator assembly includes a polymerizable liquid supply chamber, an application roller (11), and a metering roller (12). The applicator assembly may optionally include a post-metering roller (14). An apparatus comprising a first and a second applicator assembly and a smaller scale version of the apparatus are also described.

Abstract: A flexible porous metal foil sheet made of a metal porous material which use a solid solution alloy, a metal element of a face-centered cubic structure or a metal element of a body-centered cubic structure as the matrix phase, wherein the thickness of the sheet is greater than 200 ?m and less than or equal to 1500 ?m, the average aperture is 0.05˜100 ?m, and the porosity is 15%˜70%. The method for making the flexible porous metal foil comprises: (1) making viscous suspension or muddy paste of raw material powder that will form the metal porous material using a dispersing agent and a binding agent; (2) injecting the suspension or paste into a mold for making membrane, and drying the suspension or paste to form a homogeneous membrane; (3) pressing the membrane to improve the stacking density of the powder particles; and (4) sintering the pressed membrane to obtain the flexible porous metal foil. The flexible porous metal foil has more uniform aperture distribution, and better flatness of the foil.

Abstract: A method, product, apparatus, and article of manufacture for the application of the Composite Based Additive Manufacturing (CBAM) method to produce objects in metal, and in metal fiber hybrids or composites. The approach has many advantages, including the ability to produce more complex geometries than conventional methods such as milling and casting, improved material properties, higher production rates and the elimination of complex fixturing, complex tool paths and tool changes and, for casting, the need for patterns and tools. The approach works by slicing a 3D model, selectively printing a fluid onto a sheet of substrate material for each layer based on the model, flooding onto the substrate a powdered metal to which the fluid adheres in printed areas, clamping and aligning a stack of coated sheets, heating the stacked sheets to melt the powdered metal and fuse the layers of substrate, and removing excess powder and unfused substrate.

Abstract: A molded resin strand includes a first layer containing thermoplastic resin, and a second layer covering the first layer and containing thermoplastic resin exhibiting physical properties different from those of the first layer. For example, the second layer is melt-extruded with the second layer covering the first layer. A three-dimensional object is modeled by lamination deposition by fusion between adjacent second layers. In a molded resin strand manufacturing method, a melt-kneaded resin material is continuously extruded from a ferrule of an extruder. The extruded molded resin strand is vacuum-sucked while passing through a sizing device. Subsequently, the molded resin strand is wound up after cooling solidification. The sizing device is provided with a space having a circular cross section, and a surface of the sizing device facing the space is provided with a plurality of vacuum suction grooves.

Abstract: A method of making a pre-sintered preform, including forming a pre-sintered preform by a binder jet additive manufacturing technique. The binder jet additive manufacturing technique includes depositing a first powder layer including a first powder and a second powder followed by depositing a first binder at a pre-determined location of the first powder layer. The binder jet additive manufacturing technique also includes depositing a second powder layer over at least a portion of the first powder layer followed by depositing a second binder at a pre-determined location of the second powder layer. At least a portion of the first binder and at least a portion of the second binder is cured forming a green part. The green part is then densified to form a pre-sintered preform near net shape component.

Abstract: The present invention concerns a filtering medium, a method for the production thereof, the use of said filtering medium and a method for reducing the content of multiple contaminants simultaneously in fluids by means of said filtering medium through a physical barrier, a chemical process or biological process, wherein said filtering medium consists of or comprises at least one of the following: a mixture (A) containing a major part of an iron-based powder and a minor part of a copper based powder, an iron-copper powder alloy (B), and an iron-based porous and permeable composite containing copper (C).

Abstract: The invention relates to a method for producing 3D components, particulate material being applied in layers to a building platform in a closed build space and printing fluid being selectively applied, and these steps being repeated until a three-dimensional component is obtained, the relative humidity or the relative solvent concentration in the atmosphere in the build space being set to a selected value, and/or the temperature in the build space being set to a selected temperature.

Abstract: The present invention relates to a method for producing three-dimensional models by a layering technique, particulate build material being applied to a build space, and binder material subsequently being selectively applied to the build material with the aid of a printer, the binder material containing a moderating agent and subsequently being sintered with the aid of a heat lamp, the print head being protected against overheating by active and/or passive cooling.

Abstract: A method for producing a copper-infiltrated valve seat ring and a valve seat ring are disclosed. The method includes introducing a copper powder and a functional material powder mixture into a joint cavity, simultaneously forming the copper powder and the functional material powder mixture into a green body comprising a functional section and a copper section in the joint cavity by the mold element, and sintering the green body formed in step b) to produce the valve seat ring where the copper section liquefies during the sintering and infiltrates pores present in the functional section.

Abstract: The present invention relates to zinc electrode and to methods of producing zinc electrode and particularly to a method of producing zinc electrode providing dimensional/geometrical stability during a battery charge/discharge operation. The invention provides methods of use of batteries comprising the zinc electrode of this invention. Applications of batteries of this invention include electric vehicles, portable electronics and drones.

Abstract: A lithium-ion secondary battery including a lithium-containing complex phosphate as a positive electrode active material is provided. Furthermore, a positive electrode active material with high diffusion rate of lithium ions is provided to provide a lithium-ion secondary battery with high output. A positive electrode active material of a lithium-ion secondary battery includes a first plate-like component and a second plate-like component, a third prismatic component between the first component and the second component, and a space between the first component and the second component.

Abstract: According to an example, a three-dimensional (3D) printer may include a spreader to spread build material granules into a layer on a build area platform, a pressing die positioned above the layer of spread build material granules, in which the pressing die is to apply pressure onto the layer of build material granules to fragment the build material granules into primary particles to increase the density of the layer of build material granules, and a printhead to selectively deposit a fusing agent between the primary particles of the spread layer of build material granules.

Abstract: Printing stations to receive build units are disclosed. The printing stations may comprise a first wall comprising two fixed receiving ports to engage with two fixed mounting elements of the build units, respectively, and a second wall comprising a third fixed receiving port to engage with a third fixed mounting element of the build units, and a calibration receiving port to be coupled to a fourth fixed mounting element when the build unit is inserted into the printing station.

Abstract: The present disclosure relates to a method of producing a compound material comprising at least one metal and at least one polymer, a compound material comprising at least one metal and at least one polymer, comprising a 3D-lattice of the at least one metal and a polymer introduced into the 3D-lattice, a component for a vehicle comprising the compound material and a vehicle comprising the component.

Abstract: The invention belongs to the fields of amorphous alloy composites, additive manufacturing technology and hot isostatic pressing sintering forming, and in particular relates to a preparation method of tungsten particle reinforced amorphous matrix composites, comprising the following steps: (1) making tungsten powder and amorphous alloy powder into a preform by the micro-jetting and bonding 3D printing technology, specifically comprising: in the preforming process by micro-jetting and bonding, through a double-drum type powder feeding device, spraying tungsten powder and amorphous alloy powder into a layer of uniformly mixed powder layer by double nozzles, then bonding the powder layer into a bonding layer by the binder, and repeating the operations of spraying the powders and binder, so that a preform with uniform particle phase distribution is finally prepared; (2) placing the preform in a capsule, and performing heating and vacuumizing on the capsule in a heating furnace; and (3) placing the capsule in the h

Abstract: A composite material containing carbon and a plastic includes: a) provision of a pulverulent composition with one or more components of amorphous carbon, graphite and mixed forms thereof, b) provision of a liquid binder, c) planar deposition of a layer consisting of the material provided in step a) and local deposition of droplets of material provided in step b) onto this layer and any number of repetitions of step c), the local deposition of the droplets in the successive repetitions of this step being adapted according to the desired shape of the component to be produced, d) at least partial curing or drying of the binder to obtain a green body that has the desired shape of the component, e) impregnation of the green body with a liquid synthetic resin and f) curing of the synthetic resin to produce a synthetic resin matrix.

Abstract: The invention describes a process for the manufacture of a gas diffusion electrode involving preparing a powder mixture containing at least a catalyst and a binder, applying the powder mixture to an electrically conducting support, and pressing the powder mixture with the electrically conducting support.

Abstract: A heating roll press machine according to the present disclosure includes a pair of rollers and a preheating unit that preheats a processing object before the processing object is conveyed to the pair of rollers. The preheating unit preheats the processing object so that a temperature distribution differs according to positions in a width direction of the processing object to reduce a temperature difference in the width direction of the processing object after the processing object passes through the pair of rollers each having a temperature difference between a roller central part and roller end parts.

Abstract: Embodiments of the present disclosure relate to advanced polishing pads with tunable chemical, material and structural properties, and new methods of manufacturing the same. According to one or more embodiments of the disclosure, it has been discovered that a polishing pad with improved properties may be produced by an additive manufacturing process, such as a three-dimensional (3D) printing process. Embodiments of the present disclosure thus may provide an advanced polishing pad that has discrete features and geometries, formed from at least two different materials that include functional polymers, functional oligomers, reactive diluents, addition polymer precursor compounds, catalysts, and curing agents.

Abstract: Bioresorbable porous biocomposites for orthopaedic applications. In an exemplary embodiment of a resorbable orthopaedic implant of the present disclosure, the implant comprises a porous alloy of at least a first metal and a second metal sintered together, the alloy configured to resorb into a body at substantially an atomic level without flaking off, wherein a porosity of the implant is defined by a first plurality of interconnected holes having a first range of sizes.

Abstract: The invention relates to a method for producing a current collector (1) for a fuel cell. The method comprises the following steps: mixing a power-type or granulate-type base material (2) with a binding agent (3) and with fibres (4) in order to generate a material mixture (5), wherein the fibres (4) have a lower melting point and/or a lower chemical resistance than the base material (2); moulding a moulded body (6) from the material mixture (5); debinding the binding agent (3) from the moulded body (6); removing at least one portion of the fibres (4) from the moulded body (6); and sintering the moulded body (6). The invention also relates to a fuel cell having a current collector (1) that is produced by means of a method according to the invention.

Abstract: The invention relates to a method, a device, a binder system, and a material system for producing components using layering technology, wherein the temperature in the building space and/or in the applied material is set to at least 70° C. and maintained for at least 2 hours. Areas on which binder has been selectively applied, solidify and form the component.

Abstract: A method for making a porous metal article of manufacture is provided. The method includes subjecting a saturated aqueous electrolytic solution wherein silver or copper is a donor in a container with two electrodes, where dendrite crystals of silver or copper or silver or copper nanowires are formed and collected. The collected dendrite crystals or nanowires are pressed and sintered, thereafter cooled to room temperature at room temperature and finally pressing the cooled geometric shape to form the porous silver metal article of manufacture. The collected dendrites crystals or nanowires also can be pressed in a carbon based mold or, alternatively, a non-carbon based mold and in vacuum, sintered, cooled to room temperature.

Abstract: A method for manufacturing a porous metal with enhanced ability to bond to a plastic subsequently powder feed for injection molding process provides a powder feed to an injection molding process, to form a green embryo. The green embryo is sent into a sintering furnace for high-temperature sintering to obtain a blank sintered product. A chemical reagent is applied to form pores on the sintered product. The powder feed includes first and second metal powders evenly mixed. The second metal powder has a mass percentage of about less than 10% of a total mass of the powder feed for injection molding process. The first metal powder is corrosion-resistant. The second metal powder is readily corrodible.

Abstract: A composite body includes a bound mixture and a resin. The bound mixture includes a binder and a plurality of particles. The resin fully infiltrates the bound mixture such that the resin fully infiltrates an entire thickness of the composite body. The composite body is formed by combining a plurality of particles with a binder to form a bound mixture and infiltrating the bound mixture with a resin to a depth such that substantially an entire thickness of the composite body contains the resin.

Abstract: The oil-impregnated sintered bearing of the present invention is an oil-impregnated sintered bearing having a Fe—Cu-based sintered body being impregnated with, a bearing hole being formed in the Fe—Cu-based sintered body and configured to be penetrated by and support a rotating shaft, in which an inner circumferential surface of the bearing hole includes a first region forming a central portion in a shaft direction, a second region from a first end portion of the first region to a first opening of the bearing hole, and a third region from a second end portion of the first region to a second opening of the bearing hole, and an area ratio of the Cu phase of the second region in a center along the shaft direction is 80% or more and 100% or less of an area ratio of the Cu phase of the third region in a center along the shaft direction.

Abstract: The present invention relates to the technical field of 3D printing, especially in the form of the binder jetting method, in which particles in a powder bed are bonded by means of a printed adhesive to form a three-dimensional object. The particles may be inorganic particles, for example sand or a metal powder, or polymeric particulate, for example polymethacrylates or polyamides. For this purpose, polymethacrylates may take the form, for example, of suspension polymers, called bead polymers.

Abstract: The present invention relates to the technical field of 3D printing, especially in the form of the binder jetting method, in which particulate material in a powder bed is bonded by means of a printed adhesive to form a three-dimensional object. The particulate materials may be inorganic materials, for example sand or a metal powder, or particulate polymeric materials, for example polymethacrylates or polyamides. For this purpose, polymethacrylates may take the form, for example, of suspension polymers, called bead polymers. The present invention relates to the use of porous particles in the binder jetting process, in particular of porous suspension polymers. These powders for 3-D printing differ from the prior art in that the porosity results in a faster and better absorption of the printed binder by the powder particles. A great advantage of this procedure is additionally that a product with less warpage is formed and that the end product has a better surface appearance.

Abstract: A method comprising the steps of: distributing a titanium alloy or pure titanium powder layer on a work table inside a vacuum chamber, directing at least one electron beam from at least one electron beam source over the work table causing the powder layer to fuse in selected locations, distributing a second powder layer on the work table of a titanium alloy or pure titanium inside the build chamber, directing the at least one electron beam over the work table causing the second powder layer to fuse in selected locations, and releasing a predefined concentration of the gas from the metal powder into the vacuum chamber when at least one of heating or fusing the metal powder layer, wherein at least one gas comprising hydrogen is absorbed into or chemically bonded to the titanium or titanium alloy powder to a concentration of 0.01-0.5% by weight of the hydrogen.

Abstract: A filtering medium for removal of solids from a fluid. A solid filtering matrix contains fluid passages that are made up of a plurality of chambers with connecting channels. The chambers have a greater diameter than the connecting channels.

Abstract: The disclosure is directed to Zr—Co—Ni—Al alloys that optionally comprise Ti and are capable of forming metallic glasses having a combination of high glass forming ability and high reflectivity. Compositional regions in the Zr—Co—Ni—Al and Zr—Ti—Co—Ni—Al alloys are disclosed where the metallic glass-forming alloys demonstrate a high glass forming ability while the metallic glasses formed from the alloys exhibit a high reflectivity. The metallic glass-forming alloys demonstrate a critical plate thickness of at least 2 mm, while the metallic glasses formed from the alloys demonstrate a CIELAB L* value of at least 78.