A method for producing a metal shaped article having a porous structure includes a mold formation step of forming a mold having a plurality of columnar structures extending from a substrate by performing a resin material supply step of supplying a liquid containing a resin material to a plurality of places of the substrate at intervals in two directions crossing each other, and a curing step of curing the liquid, a sintering target material supply step of supplying a sintering target material to the mold, a removal step of removing the substrate, a degreasing step of degreasing the columnar structures, and a sintering step of sintering the sintering target material.

An additive manufacturing machine and associated method for making a part layerwise by firstly using additive manufacture to make a mold to define a space for the layer, and secondly filling the space with a paste to make a layer of the part. The machine comprises a first mold forming station with inkjet nozzles to form the mold using standard 3D printing, and a second paste dispensing station distanced from the first station, with a dispensing die slot for dispensing paste into the space to form a layer. The machine operates on multiple parts simultaneously, each being conveyed along a path through the stations.

An additive manufacturing machine and associated method for making a part layerwise by firstly using additive manufacture to make a mold to define a space for the layer, and secondly filling the space with a paste to make a layer of the part. The machine comprises a first mold forming station with inkjet nozzles to form the mold using standard 3D printing, and a second paste dispensing station distanced from the first station, with a dispensing die slot for dispensing paste into the space to form a layer. The machine operates on multiple parts simultaneously, each being conveyed along a path through the stations.

A three-dimensional modeling device includes a table supporting a powder material and a model created from the powder material, a processing section disposed so as to face the table and obtaining the model by processing the powder material, and a rotation unit causing the table to rotate relative to the processing section around a rotary axis. The processing section has a plurality of processing units disposed around the rotary axis. The processing units supply the powder material to the table, preheat the supplied powder material, and emit an energy beam to the preheated powder material.

A three-dimensional modeling device includes a table supporting a powder material and a model created from the powder material, a processing section disposed so as to face the table and obtaining the model by processing the powder material, and a rotation unit causing the table to rotate relative to the processing section around a rotary axis. The processing section has a plurality of processing units disposed around the rotary axis. The processing units supply the powder material to the table, preheat the supplied powder material, and emit an energy beam to the preheated powder material.

A fluid flow apparatus configured to provide a flow of fluid with particular flow profiles to a process chamber of an additive manufacturing apparatus is provided. The fluid flow apparatus includes a plurality of openings forming a first flow region, a second flow region, a third flow region, and a fourth flow region in adjacent arrangement along an axis in the process chamber between the build platform and the laser window. A controller is configured to execute instructions that perform operations that include flowing, via the second flow region, the flow of fluid along a second distance along the axis at a second velocity range between approximately 1.0 meters per second (m/s) and 6.0 m/s, and flowing, via the fourth flow region, another flow of fluid along a fourth distance along the axis at a fourth velocity range between approximately 0.1 m/s and 4.5 m/s.

The present disclosure generally relates to methods for additive manufacturing (AM) for fabricating multi-walled structures. A multi-walled structure includes a first wall having a first surface and a second wall having a second surface facing the first surface to define a passage having a width between the first surface and the second surface in a first direction. The multi-walled structure also includes an enlarged powder removal feature connecting the first wall and the second wall. The enlarged powder removal feature has an inner dimension greater than the width in the first direction and at least one open end in a direction transverse to the first width.

An additive manufacturing system is provided. The additive manufacturing system includes a build platform and at least one workstation. The build platform defines a continuous workflow path and is configured to rotate about a build platform axis. The workstation is spaced apart from the build platform along the third direction and at least one of the build platform and the workstation is configured to move along the third direction. The workstation includes at least one particle delivery device, at least one recoating device, and at least one consolidation device. The particle delivery device is configured to deposit particles on the build platform. The recoating device is configured to distribute the deposited particles to form a build layer on the build platform. The consolidation device is configured to consolidate at least a portion of the build layer.

A service station system for a three-dimensional printing system comprises: a bath, having a fast-release connector at a front side thereof, and a hinge at a back side thereof for hingebly connecting an open top of the bath to a surface of the three-dimensional printing system; and a wiper assembly, having a wiper device detachably connected to a wiper base mounted on a rotatable axis passing through the bath. The wiper device wipes a dispensing face of the printing head of the three-dimensional printing system while the head reciprocally moves above the bath between the back side and the front side. The service station system can also comprise a motor for rotating the axis.

A processing system includes: a processing apparatus for processing an object; a rotation apparatus for rotating a holding part holding the object; a movement apparatus for moving at least one of the processing apparatus and the holding part; a measurement apparatus for measuring at least a part of the object held by the holding part; and a control apparatus for controlling the movement apparatus and the rotation apparatus based on a measured result by the measurement apparatus to rotate the holding part and to move at least one of the processing apparatus and the holding part