Systems and corresponding methods are provided for separation of support structures from near net shape manufactured parts. The system can include a support structure and a non-adhering material. The non-adhering material can be positioned on one or more predetermined exterior-facing surfaces of the support structure. The support system can be dimensioned for receipt within a void space of a porous green body defined by an overhang region of the porous green body. After receipt within a void space of a porous green body that undergoes a thermally-induced volumetric change, the support system can be configured to support the overhang region and the non-adhering material can be configured to inhibit adherence of the exterior-facing surfaces of the support structure to opposed surfaces of the void space.

A three-dimensional shaped article production method for producing a three-dimensional shaped article by stacking layers to form a stacked body includes a first layer formation step of forming a first layer on a support by supplying a first composition containing first particles and a binder, a second layer formation step of forming a second layer composed of one layer or a plurality of layers on the first layer by supplying a second composition containing second particles and a binder, and a separation step of separating the second layer from the support through the first layer, wherein after the separation step, a sintering step of sintering the second layer is performed.

A three-dimensional shaped article production method for producing a three-dimensional shaped article by stacking layers to form a stacked body includes a first layer formation step of forming a first layer on a support by supplying a first composition containing first particles and a binder, a second layer formation step of forming a second layer composed of one layer or a plurality of layers on the first layer by supplying a second composition containing second particles and a binder, and a separation step of separating the second layer from the support through the first layer, wherein after the separation step, a sintering step of sintering the second layer is performed.

A device for producing a component using an additive process is disclosed. In an embodiment a device includes an element for producing a component and an assembly for at least partially receiving the element, wherein the component is additively built up on the element, and/or wherein the assembly comprises a putty for thermal insulation and/or fastening of the element.

According to some aspects, a de-powdering subsystem for an additive fabrication system is described. The de-powdering subsystem may comprise a bath subsystem. The bath subsystem may comprise a reservoir configured to contain a liquid and to accept objects to be de-powdered into the liquid, and an agitation facility configured to cause currents within the liquid. The agitator facility may be at least one of (i) a pump configured to circulate the liquid within the reservoir, (ii) a heating element configured to generate convection currents in the liquid, and (iii) a stirrer driven through a linkage to a motor. The bath subsystem may comprise at least one ultrasonic transducer configured to apply ultrasonic vibrations to the liquid within the reservoir.

Process for the additive manufacturing of at least one part by powder sintering or melting using at least one beam of energy. A step of deposition and selective melting of stacked layers of powder manufactures at least one intermediate element comprising the part and at least one local reinforcing element having a split tubular shape that surrounds one of the lateral end faces of the part and that face each of the frontal faces of said part adjacent to said end face, said reinforcing element extending in a direction substantially parallel to the stacking direction of the layers. The part and the local reinforcing element are separated.

A system for de-powdering one or more objects within a powder print bed comprises a build box configured to contain the powder print bed, and a de-powdering subsystem configured to engage the build box. The de-powdering subsystem comprises a vacuum device configured to withdraw loose powder agitated by the air jet device, and a robotic arm configured to convey the vacuum device to one or more locations on the powder print bed. The system may further comprise an air jet device disposed on the robotic arm, the air jet device configured to agitate, with a jet of air, unbound powder within the powder print bed. The system may further comprise a mechanical agitation instrument configured to facilitate agitation of the unbound powder within the powder print bed. The mechanical agitation instrument may be used in conjunction with one or both of the vacuum device and the air jet device.

According to some aspects, a de-powdering subsystem for an additive fabrication system is described. The de-powdering subsystem may comprise a bath subsystem. The bath subsystem may comprise a reservoir configured to contain a liquid and to accept objects to be de-powdered into the liquid, and an agitation facility configured to cause currents within the liquid. The agitator facility may be at least one of (i) a pump configured to circulate the liquid within the reservoir, (ii) a heating element configured to generate convection currents in the liquid, and (iii) a stirrer driven through a linkage to a motor. The bath subsystem may comprise at least one ultrasonic transducer configured to apply ultrasonic vibrations to the liquid within the reservoir.

A system for separating objects within a stacked powder print bed of nested objects comprises a build box configured to contain the powder print bed. The build box has a build box top and a build box floor. The system further includes an elongated aperture formed in a side wall of the build box, and a de-powdering subsystem configured to mechanically and electrically engage the build box. A separating blade associated with the de-powdering subsystem is configured to be inserted through the elongated aperture and into the powder print bed between a top-most print bed layer of the nested objects and a second print bed layer directly below and contiguous with the top-most layer, thereby forming an isolated powder print bed between the separating blade and the build box top. The unbound powder may be agitated by various techniques and subsequently removed from the objects.

The present invention relates to a method for manufacturing a basic metallic frame product used to produce a metallic frame as a part of an electronic product such as a smartphone, a smart key, a remote controller, and the like, and to a metal injection molded system including a metal injection molded product made with a mixture of metal powder and a binder and a support means for fixing the metal injection molded product to prevent the molded side wall from shrinking in the longitudinal direction thereof during a sintering process of the metal injection molded product. As the basic metallic frame product made using the system is provided, the metallic frame may be easily mass-produced, the production cost of the metallic frame may be lowered, and an amount of metal consumed for making the metallic frame may be reduced.