An additive manufacturing device includes a molding unit including a molding tank accommodating a manufactured object and forming the manufactured object in the molding tank, a pressure vessel accommodating the molding unit, and a gas supply unit connected to the pressure vessel, supplying a gas into the pressure vessel, and configured to pressurize an inner portion of the pressure vessel.

An additive manufacturing device includes a molding unit including a molding tank accommodating a manufactured object and forming the manufactured object in the molding tank, a pressure vessel accommodating the molding unit, and a gas supply unit connected to the pressure vessel, supplying a gas into the pressure vessel, and configured to pressurize an inner portion of the pressure vessel.

A system for producing a soft magnetic material having a core-shell structure includes a gas supply configured to supply at least one gas; and a furnace configured to receive the at least one gas. A flow of the at least one gas is configured to be varied to provide a shell on a particle in the furnace.

A system for producing a soft magnetic material having a core-shell structure includes a gas supply configured to supply at least one gas; and a furnace configured to receive the at least one gas. A flow of the at least one gas is configured to be varied to provide a shell on a particle in the furnace.

An additive manufacturing system includes a platen having a top surface to support an object being manufactured, a feed material dispenser to deliver a plurality of successive layers of feed material over the platen, an energy source positioned above the platen to fuse at least a portion of an outermost layer of feed material, and a coolant fluid dispenser to deliver a coolant fluid onto the outermost layer of feed material after at least a portion of the outermost layer has been fused.

A compact is provided. When the compact is used for a magnetic core, a magnetic path cross section has a cross-sectional perimeter of more than 20 mm, and at least part of a surface of the compact is covered with an iron-based oxide film having an average thickness of 0.5 μm or more and 10.0 μm or less. Letting the proportion of the surface area of the compact to the volume of the compact be surface area/volume, the content of Fe.sub.3O.sub.4 present in the iron-based oxide film with respect to 100% by volume of the compact satisfies any one of (1) to (3): (1) less than 0.085% by volume when the (surface area/volume) is 0.40 mm.sup.−1 or less, (2) 0.12% or less by volume when the (surface area/volume) is more than 0.40 mm.sup.−1 and 0.60 mm.sup.−1 or less, and (3) 0.15% or less by volume when the (surface area/volume) is more than 0.60 mm.sup.−1.

A compact is provided. When the compact is used for a magnetic core, a magnetic path cross section has a cross-sectional perimeter of more than 20 mm, and at least part of a surface of the compact is covered with an iron-based oxide film having an average thickness of 0.5 μm or more and 10.0 μm or less. Letting the proportion of the surface area of the compact to the volume of the compact be surface area/volume, the content of Fe.sub.3O.sub.4 present in the iron-based oxide film with respect to 100% by volume of the compact satisfies any one of (1) to (3): (1) less than 0.085% by volume when the (surface area/volume) is 0.40 mm.sup.−1 or less, (2) 0.12% or less by volume when the (surface area/volume) is more than 0.40 mm.sup.−1 and 0.60 mm.sup.−1 or less, and (3) 0.15% or less by volume when the (surface area/volume) is more than 0.60 mm.sup.−1.

In one example, a method for 3D printing includes identifying, in a model of an object, a feature of the object and automatically selecting a depowdering process for an object printed using the model based on the identified feature.

In one example, a method for 3D printing includes identifying, in a model of an object, a feature of the object and automatically selecting a depowdering process for an object printed using the model based on the identified feature.

A Ti—Fe-based sintered alloy material including two phases of an α phase and a β phase, in which a content of iron is 0.5% or more and 7% or less on a weight basis, a β phase containing an iron component is dispersed in an independent state in an α phase, an area ratio of the β phase containing an iron component is 60% or less of an entire area, and an equiaxed crystal grain is contained in the α phase.