An apparatus and method are provided for manufacturing particles. The apparatus and method may be implemented in a roll-to-roll fashion for continuous or intermittent production of particles, using membranes passing from station to station propelled by rollers.

An apparatus and method are provided for manufacturing particles. The apparatus and method may be implemented in a roll-to-roll fashion for continuous or intermittent production of particles, using membranes passing from station to station propelled by rollers.

Provided is a method for manufacturing material powder for metal laminating modelling, in which a virgin material is manufactured based on the particle size distribution of the virgin material being an unused material powder, and the fluidity of an unsintered reused material after the virgin material is reused a predetermined number of times by a metal laminating modelling device, so that the particle size distribution of the virgin material corresponds to the fluidity of the reused material that is equal to or greater than a predetermined standard value. Silica particles may be added to the virgin material.

The present disclosure is directed to systems and methods for producing a metal-containing powder useful for additive manufacturing. The metal-containing powder includes a plurality of metal-containing platelets having a defined physical geometry and a defined aspect ratio. The metal platelets may be produced by depositing a metal layer on a substrate that includes one or more recessed or raised surface features. The one or more recessed or raised surface features create a fracture pattern in a metal layer deposited across at least a portion of the one or more surface features. By separating the metal layer from the substrate and fracturing the metal layer along the fracture pattern, a plurality of metal platelets are produced. In some embodiments, a release agent may be disposed between the metal layer and the substrate to facilitate the separation of the metal layer from the substrate.

Disclosed are: a method capable of preparing, in large-scaled quantity, nonspherical/asymmetric fine particles in which the physical factors (for example, size, shape, structure, etc.) of a fine wire (for example, glass-coated metal wires) are controlled, by merging a convergence of nano technology (NT) and laser machining technology; and a use thereof applicable to various fields including bioassay and security.

Disclosed is a technology being implemented in an apparatus for depositing multiple layers of a stream of swarf particles. The stream of swarf particles is generated by interfacing a cutting abrasive wheel on a workpiece. The generated stream of swarf particles may be directed towards a cavity of a die. Multiple layers of stream of swarf particles further results in a 3D printed object that takes the shape of the cavity of the die. The apparatus may also be used to coat substrates. Substrates may include but not limited to metal surfaces, polymers, and ceramics.

Disclosed is a technology being implemented in an apparatus for depositing multiple layers of a stream of swarf particles. The stream of swarf particles is generated by interfacing a cutting abrasive wheel on a workpiece. The generated stream of swarf particles may be directed towards a cavity of a die. Multiple layers of stream of swarf particles further results in a 3D printed object that takes the shape of the cavity of the die. The apparatus may also be used to coat substrates. Substrates may include but not limited to metal surfaces, polymers, and ceramics.

A sintered magnet contains SmFeN-based crystal grains and has high coercivity; and a magnetic powder is capable of forming a sintered magnet without lowering the coercivity even if heat is generated in association with the sintering. A sintered magnet comprises a crystal phase composed of a plurality of SmFeN-based crystal grains and a nonmagnetic metal phase present between the SmFeN crystal grains adjacent to each other, wherein a ratio of Fe peak intensity I.sub.Fe to SmFeN peak intensity I.sub.SmFeN measured by an X-ray diffraction method is 0.2 or less. A magnetic powder comprises SmFeN-based crystal particles and a nonmagnetic metal layer covering surfaces of the SmFeN crystal particles.

A powder production method includes providing an elongated workpiece and repeatedly contacting an outer surface of the elongated workpiece with a reciprocating cutter according to a predetermined at least one frequency to produce a powder. The powder includes a plurality of particles, wherein at least 95% of the produced particles have a diameter or maximum dimension ranging from about 10 ?m to about 200 ?m. A system for producing powders having a plurality of particles including a cutter and at least one controller is also provided herein.

A powder production method includes providing an elongated workpiece and repeatedly contacting an outer surface of the elongated workpiece with a reciprocating cutter according to a predetermined at least one frequency to produce a powder. The powder includes a plurality of particles, wherein at least 95% of the produced particles have a diameter or maximum dimension ranging from about 10 ?m to about 200 ?m. A system for producing powders having a plurality of particles including a cutter and at least one controller is also provided herein.