A build device and a method of operating the build device are disclosed. In a method provided, a build material is directed to an intermediate vessel from a conveying line. The build material is separated from an air stream and dropped into the intermediate vessel. The intermediate vessel is emptied between a first build operation and a second build operation.

A build device and a method of operating the build device are disclosed. In a method provided, a build material is directed to an intermediate vessel from a conveying line. The build material is separated from an air stream and dropped into the intermediate vessel. The intermediate vessel is emptied between a first build operation and a second build operation.

The present invention relates to an apparatus for production of nanoparticles or nanocomposites. The apparatus comprises a metal wire (112) operably connected to a motor (124). The metal wire (112) passes through a first wire guide (114). There are at least two rollers (118, 120), with at least one roller amongst said at least two rollers (118, 120) being metallic. At least one roller amongst said at least two rollers (118, 120) is connected to said motor (124). Said at least two rollers (118, 120) being in contact and rolling at a predetermined speed (X). Said metal wire (112) after passing through said first wire guide (114) passes between said at least two rollers (118, 120). Said at least two rollers (118, 120) guiding said metal wire (112) through a second wire guide (122) onto said plate (140), said second wire guide (122) being an insulator. Said plate (140) being placed inside a medium (138). A container (136) enclosing said plate (140) and said medium (138). A power supply (142), wherein a first terminal (144) of said power supply (142) is electrically in contact with said metal wire (112) and a second terminal (146) of said power supply (142) is electrically in contact with said plate (140). A contact sensing unit (154) operably connected to said at least two rollers (118, 120), said metal wire (112), said plate (140), said motor (124) and said power supply (142), said motor (124) intermittently rolling at least one roller amongst said at least two rollers (118, 120) rolling at said predetermined speed (X) bringing said metal wire (112) in contact with said plate (140). Intermittent controlled electro-explosions take place at a predetermined interval (T) as said metal wire (112) comes in contact with said plate (140).

The present invention relates to an apparatus for production of nanoparticles or nanocomposites. The apparatus comprises a metal wire (112) operably connected to a motor (124). The metal wire (112) passes through a first wire guide (114). There are at least two rollers (118, 120), with at least one roller amongst said at least two rollers (118, 120) being metallic. At least one roller amongst said at least two rollers (118, 120) is connected to said motor (124). Said at least two rollers (118, 120) being in contact and rolling at a predetermined speed (X). Said metal wire (112) after passing through said first wire guide (114) passes between said at least two rollers (118, 120). Said at least two rollers (118, 120) guiding said metal wire (112) through a second wire guide (122) onto said plate (140), said second wire guide (122) being an insulator. Said plate (140) being placed inside a medium (138). A container (136) enclosing said plate (140) and said medium (138). A power supply (142), wherein a first terminal (144) of said power supply (142) is electrically in contact with said metal wire (112) and a second terminal (146) of said power supply (142) is electrically in contact with said plate (140). A contact sensing unit (154) operably connected to said at least two rollers (118, 120), said metal wire (112), said plate (140), said motor (124) and said power supply (142), said motor (124) intermittently rolling at least one roller amongst said at least two rollers (118, 120) rolling at said predetermined speed (X) bringing said metal wire (112) in contact with said plate (140). Intermittent controlled electro-explosions take place at a predetermined interval (T) as said metal wire (112) comes in contact with said plate (140).

A production method of particulate materials, through centrifugal atomization (CA) is disclosed. The method is suitable for obtaining fine spherical powders with exceptional morphological quality and extremely low content, or even absence of nonspherical-shape particles and internal voids. A appropriate cost effective method for industrial scale production of metal, alloy, intermetallic, metal matrix composite or metal like material powders in large batches is also disclosed. The atomization technique can be extended to other than the centrifugal atomization with rotating element techniques.

A metal additive manufacturing device is disclosed herein. The wire feeding mechanism in the protective bin can convey metal wires towards the substrate, the working medium filtration and circulation module conveys working mediums into the protective bin and discharges working mediums, the working medium between the metal wire and the substrate or between two metal wires is broken down, and plasma is generated and maintained; and under the action of high temperature of the plasma, the metal wires quickly melt to form the metal droplets. The rotating shaft drives the rotating arm to rotate. The working bin modules are disposed at both ends of the rotating arm. The droplets formed by the melting of the metal wires fly away from a melting area under the action of a centrifugal force, and the droplets reach the substrate or the surface of a machined workpiece, cool and solidify, and crystallize.

A metal additive manufacturing device is disclosed herein. The wire feeding mechanism in the protective bin can convey metal wires towards the substrate, the working medium filtration and circulation module conveys working mediums into the protective bin and discharges working mediums, the working medium between the metal wire and the substrate or between two metal wires is broken down, and plasma is generated and maintained; and under the action of high temperature of the plasma, the metal wires quickly melt to form the metal droplets. The rotating shaft drives the rotating arm to rotate. The working bin modules are disposed at both ends of the rotating arm. The droplets formed by the melting of the metal wires fly away from a melting area under the action of a centrifugal force, and the droplets reach the substrate or the surface of a machined workpiece, cool and solidify, and crystallize.

The present invention disclosed an efficient, continuous flow process for the synthesis metal nanowires by using a continuous stirred tank reactor (CSTRs) in series for varying the aspect ratio of metal nanowires and nanorods formed by feeding affixed quantities of metal salt and polymeric surfactant with a reducing solvent like glycol to an axially mixed reactor.

A powder bed fusion apparatus including a build chamber, a build platform in the build chamber for supporting a powder bed, a layer formation device for forming layers of powder to form the powder bed, a scanner for scanning an energy beam across the powder bed to fuse the powder and a gas circuit for forming a gas flow across the powder bed. The gas circuit includes a separator for separating particles from gas in the gas circuit, a nozzle for propelling gas into the build chamber and an exhaust for extracting gas from the build chamber and delivering the gas to the separator. The exhaust includes an exhaust channel or opening located for receiving powder wiped from the powder bed and/or build platform.

A powder bed fusion apparatus including a build chamber, a build platform in the build chamber for supporting a powder bed, a layer formation device for forming layers of powder to form the powder bed, a scanner for scanning an energy beam across the powder bed to fuse the powder and a gas circuit for forming a gas flow across the powder bed. The gas circuit includes a separator for separating particles from gas in the gas circuit, a nozzle for propelling gas into the build chamber and an exhaust for extracting gas from the build chamber and delivering the gas to the separator. The exhaust includes an exhaust channel or opening located for receiving powder wiped from the powder bed and/or build platform.