An accessory device used in combination with a solid-state additive manufacturing system is described. In some configurations, the accessory device can be used in combination with an additive manufacturing system, such as a solid-state additive manufacturing system, to enable printing of large-scale and complex objects, where the objects are much larger than those printed with existing solid-state manufacturing systems. The disclosed accessory device used in conjunction with the a solid-state additive manufacturing system is capable of manufacturing non-hollow (solid), partially-hollow or completely-hollow objects via different methods.

An example system may include a material source and a substrate having a molten pool on a surface of the substrate, wherein the molten pool faces a downward direction defined with respect to gravity. The system may include a computing device. An example technique may include, by the computing device, controlling the material source to direct a stream of solid material to the molten pool in an upward direction defined with respect to gravity. The material combines with the molten pool to form a deposited volume of a plurality of deposited volumes. The plurality of deposited volumes defines a component. An example computer readable storage medium may include instructions that, when executed, cause at least one processor to control, based on a digital representation of the component, an energy source to direct an energy beam at the substrate to form the molten pool, and control the material source.

The present disclosure generally relates to powder packing for additive manufacturing (AM) methods and systems. Conventional powder packing methods are manual and non-standardized, and they result in operator fatigue and potentially product inconsistencies. Powder packing according to the present disclosure improves standardization and reduces turnaround time, with the potential to lower the cost of AM.

The present disclosure generally relates to powder packing for additive manufacturing (AM) methods and systems. Conventional powder packing methods are manual and non-standardized, and they result in operator fatigue and potentially product inconsistencies. Powder packing according to the present disclosure improves standardization and reduces turnaround time, with the potential to lower the cost of AM.

A metal 3D printer includes a base unit including a fixed part, a first moving part disposed on the fixed part to move in a first direction, a second moving part disposed on the first moving part to move in a second direction, and a third moving part disposed on the second moving part to move in a third direction, a nozzle unit coupled to the second moving part to move in the first and second directions and move in the third direction and injecting a material for manufacturing a sculpture, a processing unit coupled to the third moving part to move in the first to third directions and processing the sculpture, a table unit disposed rotatably to the fixed part and disposed below the nozzle unit, and a heating unit disposed on the fixed part.

A metal 3D printer includes a base unit including a fixed part, a first moving part disposed on the fixed part to move in a first direction, a second moving part disposed on the first moving part to move in a second direction, and a third moving part disposed on the second moving part to move in a third direction, a nozzle unit coupled to the second moving part to move in the first and second directions and move in the third direction and injecting a material for manufacturing a sculpture, a processing unit coupled to the third moving part to move in the first to third directions and processing the sculpture, a table unit disposed rotatably to the fixed part and disposed below the nozzle unit, and a heating unit disposed on the fixed part.

An additive manufacturing machine (10) comprises at least one movable powder reception surface (28) capable of being displaced in proximity to a manufacturing zone (20), a powder spreading device (30), and a device (32) for distributing powder on the movable reception surface. The powder distribution device comprises a buffer tank (38) linked to a powder supply (40) and a distribution duct (42) linking the buffer tank to a powder distribution point (P1) situated above the movable reception surface, and the distribution duct (42) is mounted on a vibrating device making it possible to vibrate the distribution duct so as to generate a continuous flow of powder in the distribution duct and from the buffer tank to the powder distribution point.

A three-dimensional manufacturing apparatus includes a rotary drive unit that rotates a table around a rotation axis, a region setting unit that sets a plurality of divided regions obtained by dividing an irradiation region, a beam source that irradiates a powder material with an electron beam for each of the divided regions, and a rotation speed adjusting unit that adjusts a rotation speed of the table. An area per unit central angle of a first divided region is smaller than an area per unit central angle of a second divided region. The rotation speed adjusting unit performs adjustment so that a rotation speed of the table during a period of irradiating the first divided region with the energy beam becomes faster than a rotation speed of the table during a period of irradiating the second divided region with the energy beam.

A three-dimensional manufacturing apparatus includes a rotary drive unit that rotates a table around a rotation axis, a region setting unit that sets a plurality of divided regions obtained by dividing an irradiation region, a beam source that irradiates a powder material with an electron beam for each of the divided regions, and a rotation speed adjusting unit that adjusts a rotation speed of the table. An area per unit central angle of a first divided region is smaller than an area per unit central angle of a second divided region. The rotation speed adjusting unit performs adjustment so that a rotation speed of the table during a period of irradiating the first divided region with the energy beam becomes faster than a rotation speed of the table during a period of irradiating the second divided region with the energy beam.

A three-dimensional manufacturing apparatus includes a rotary drive unit that rotates a table around a rotation axis, a region setting unit that sets a plurality of divided regions obtained by dividing an irradiation region, a beam source that irradiates a powder material with an electron beam for each of the divided regions, and a rotation speed adjusting unit that adjusts a rotation speed of the table. An area per unit central angle of a first divided region is smaller than an area per unit central angle of a second divided region. The rotation speed adjusting unit performs adjustment so that a rotation speed of the table during a period of irradiating the first divided region with the energy beam becomes faster than a rotation speed of the table during a period of irradiating the second divided region with the energy beam.