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.

A three-dimensional modeled object made of metal including a gas flow path is provided. The gas flow path includes a first structure portion with a lattice structure including a plurality of linear vent holes with a maximum width of equal to or greater than 0.01 mm and equal to or less than 0.10 mm and a frame body portion with a width of equal to or greater than 0.08 mm and equal to or less than 0.25 mm and with a solidification density of equal to or greater than 90%, and has a thickness of equal to or greater than 1 mm and equal to or less than 10 mm.

A three-dimensional modeled object made of metal including a gas flow path is provided. The gas flow path includes a first structure portion with a lattice structure including a plurality of linear vent holes with a maximum width of equal to or greater than 0.01 mm and equal to or less than 0.10 mm and a frame body portion with a width of equal to or greater than 0.08 mm and equal to or less than 0.25 mm and with a solidification density of equal to or greater than 90%, and has a thickness of equal to or greater than 1 mm and equal to or less than 10 mm.

An implant for in-vivo implantation which comprises an assembly of two or more constructive elements (3,4) which are movable relative to each other. Each constructive element (3,4) is partly or completely porous and comprises a porous part (5,6) with a matrix (7,8) of open cells (51,61). A first matrix (7) of the first element (3) comprises a first overlapping part (50) with a form-closed connection to a second overlapping part (60) of a second matrix (8) of the second of the constructive elements (4) through which the first overlapping part extends. The overlapping parts (50,60) are movable relative to each other to change a combined shape of the overlapping parts.

Examples for refining the microstructure of metallic materials used for additive manufacturing are described herein. An example can involve generating a first layer of an integral object by heating a metallic material to a molten state such that the metallic material includes a solid-liquid interface. The example can further involve applying an electromagnetic field or vibrations to the metallic material of the first layer. In some instances, the electromagnetic fields or vibrations perturb the first layer of metallic material causing nucleation sites to form at the solid-liquid interface of the metallic material in the molten state. The example also includes generating a second layer coupled to the first layer of the integral object. Generating the second layer increases a number of nucleation sites at the solid-liquid interface of the metallic material in the molten state. Each nucleation site can grows a crystal at a spatially-random orientation.

A method of manufacturing an earth boring tool body including the following steps: providing a mold, the mold comprising a mold cavity defining an interior surface corresponding to an exterior shape of a tool body and a plurality of blades. Forming at least one barrier sleeve insert and disposing it adjacent the interior surface defining the mold cavity; disposing a first powder in the gap between the insert and the interior surface, disposing a second powder in the mold cavity; disposing an infiltrant material adjacent the powders; and heating the mold, thereby infiltrating the infiltrant material into the powders to form the tool body. The disclosure also includes a mold for manufacturing an earth boring tool, the mold comprising a mold cavity defining interior surfaces corresponding to an exterior shape of the tool body and the plurality of blades. Barrier sleeve inserts and/or containment sleeve inserts may be disposed adjacent interior surfaces the mold cavity.

A process for manufacturing an abradable layer, includes compressing a powder composition including at least micrometric ceramic particles having a number-average form factor greater than or equal to 3, a mass content of said micrometric ceramic particles in the powder composition being greater than or equal to 85%, the form factor of a particle being defined as the ratio [largest dimension of the particle]/[largest cross-sectional dimension of the particle], and sintering the powder composition thus compressed to obtain the abradable layer, wherein a temperature imposed during sintering, the sintering time and the compression pressure applied are selected so as to obtain a volume porosity rate of the abradable layer greater than or equal to 20%.

[OBJECT] To provide an evaporator which can improve heat exchange performance.

[SOLVING MEANS] An evaporator including a metal wall and a porous metal film directly connected to the metal wall, wherein the porous metal film has communication holes having an average pore size of 8 μm or less, and the porous metal film has a porosity of 50% or more.

A method of printing a cellular solid (120) by direct bubble writing comprises introducing an ink formulation (102) comprising a polymerizable monomer and a gas (104) into a nozzle (106), which includes a core flow channel (108) radially surrounded by an outer flow channel (110). The ink formulation is directed into the outer flow channel (110) and the gas is directed into the core channel (108). The ink formulation (102) and the gas (104) are ejected out of the nozzle (106) as a stream of bubbles (112), where each bubble includes a core (114) comprising the gas and a liquid shell (116) overlying the core that comprises the ink formulation. After ejection, the polymerizable monomer is polymerized to form a solid polymeric shell (118) from the liquid shell (116), and the bubbles are deposited on a substrate (122) moving relative to the nozzle (106). Thus, a polymeric cellular solid (120) having a predetermined geometry is printed.

A method for producing a layer of a device for electromagnetic radiation absorption, includes: providing a ply of powder material in the layer to be produced of the device; providing a predefined concentration distribution of particles for electromagnetic radiation absorption in the layer; providing a first binder and a second binder for the powder materials, wherein the first binder includes particles for the absorption of electromagnetic radiation, wherein the second binder includes a lower concentration of identical and/or different particles than the first binder; determining a mixing ratio between the first binder and the second binder for every position in the layer; selecting a position of the layer; mixing the first and second binder according to the mixing ratio for the selected position; wetting the powder material at the selected position using the mixed first and second binders; and repeating selecting, mixing, and wetting to produce the layer.