The present disclosure relates to a method of three-dimensional (3D) printing a 3D printed object. The method comprises: selectively jetting a marking agent onto a first region of build material, wherein the build material comprises at least one meta and/or ceramic; selectively jetting a binding agent onto at least a portion of the build material; and binding the build material to form a layer; such that the marking agent is incorporated in the metal part in a predetermined arrangement that forms a detectable marker in the 3D printed object. The disclosure also relates to a multi-fluid inkjet kit for 3D printing.

A lightweight liquid metal composition and a method for producing a lightweight liquid metal composition. The composition includes: a liquid metal inclusion; a low-density phase including a plurality of particles; and an elastic polymer. The method includes: combining a low-density phase with a liquid metal to produce a multiphase liquid metal (LM), the low-density phase including a material having a density less than a density of the LM; mixing the multiphase LM with an elastomer to produce an emulsion; and curing the emulsion to produce a lightweight LM composition.

A radiation beam field shaping device is made from a 3D printed frame that contains and gives shape to a granular material with bulk density of at least 3 g/cm.sup.3 and composed of metal grains having a size between 1 μm and 4 mm. The frame has a hole in the bottom with surrounding walls that defines the desired beam shape. In one implementation, the metal grains are composed of solid tungsten alloy ball bearings and/or tungsten alloy powder.

This method describes techniques to create 3D parts by dispensing a liquid polymer or slurry in evenly delivered layers, which are exposed to light from a visual display screen before the print platform upon which it is being built is moved one-layer thickness away and the process is repeated. The process of dispensing the photosensitive material is via a pumped system through a metering device that discharges and levels the material. Multiple dispensing devices can be arranged in sequence to deliver different materials, either multiple photosensitive dispensing heads or alternative mechanisms such as robocasting, fused deposition modelling or inkjet in addition to a photosensitive deposition head.

This method describes techniques to create 3D parts by dispensing a liquid polymer or slurry in evenly delivered layers, which are exposed to light from a visual display screen before the print platform upon which it is being built is moved one-layer thickness away and the process is repeated. The process of dispensing the photosensitive material is via a pumped system through a metering device that discharges and levels the material. Multiple dispensing devices can be arranged in sequence to deliver different materials, either multiple photosensitive dispensing heads or alternative mechanisms such as robocasting, fused deposition modelling or inkjet in addition to a photosensitive deposition head.

A monolithic combustor apparatus comprises an outer casing comprising a forward flange, a fuel manifold disposed on the outer casing and defining an annular chamber extending perimetrically around the outer casing, a combustor liner disposed within the outer casing, the combustor liner defining an annular combustion chamber, a first annular plenum disposed between the outer casing and the combustor liner, an inner liner disposed radially from the combustor liner, a first inner flange extending forward from the combustor liner, and a second inner flange extending radially inward from the first inner flange.

The present disclosure provides three-dimensional (3D) objects, 3D printing processes, as well as methods, apparatuses and systems for the production of a 3D object. Methods, apparatuses and systems of the present disclosure may reduce or eliminate the need for auxiliary supports. The present disclosure provides three dimensional (3D) objects printed utilizing the printing processes, methods, apparatuses and systems described herein.

This invention relates to the field of 3D printing used to make a 3D object where a 3D printed object is formed using electromagnetic radiation emitted from a visual display screen or emissive pixel array screen illuminated by radiation sources with effectively non-overlapping wavelength emission spectra with the effect of creating two different polymerised properties in the object.

A build plate-clamping assembly may include a work station having a build plate-receiving surface and a lock-pin extending from the build plate-receiving surface of the work station. The lock-pin may include a hollow pin body, a piston disposed within the hollow pin body, with the piston axially movable from a retracted position to an actuated position, and a plurality of detents, with the plurality of detents radially extensible through respective ones of a plurality of detent-apertures in the hollow pin body responsive to the piston having been axially moved to the actuated position. A methods of working on workpieces may include lockingly engaging a build plate at a first work station, performing a first work-step, releasing the build plate from the first work station, lockingly engaging the build plate at a second work station, and performing a second work-step. An additive manufacturing system may include a vision system with a first build plate-receiving surface and an additive manufacturing machine with a second build plate-receiving surface.

An assembly is provided for a gas turbine engine. This gas turbine engine assembly includes a split case structure. The split case structure includes a first wall, a second wall, a first case segment and a second case segment. The first wall extends axially along and circumferentially about an axial centerline. The second wall extends axially along and circumferentially about the axial centerline. The second wall is radially outboard of and axially overlaps the first wall. The first case segment is configured to form a first portion of the first wall and a first portion of the second wall. The second case segment is configured to form a second portion of the first wall and a second portion of the second wall. The second case segment is circumferentially adjacent and attached to the first case segment at a joint.