A sand screen including a frame, a filtration media disposed in contact with the frame, the filtration media being of single-piece unitary construction and exhibiting varying flow properties over a surface of the media, or through a radial thickness of the media. A filtration media being of single-piece unitary construction and exhibiting varying flow properties over a surface area of the media, or through a radial thickness of the media.

The present invention relates to an additive manufacturing support (1) comprising, on a plate of an additive manufacturing machine, a stack produced by additive manufacturing, having: on the one hand, a breakable zone with a structure suitable for holding, during its manufacture, a part (100) intended to be produced by additive manufacturing, and on the other hand, between the plate and the zone with a breakable structure, an intermediate zone with a porous structure.

The present invention relates to an additive manufacturing support (1) comprising, on a plate of an additive manufacturing machine, a stack produced by additive manufacturing, having: on the one hand, a breakable zone with a structure suitable for holding, during its manufacture, a part (100) intended to be produced by additive manufacturing, and on the other hand, between the plate and the zone with a breakable structure, an intermediate zone with a porous structure.

A multilayered material system includes at least one of a liner sheet and a cellular core, and a multilayered composite joined to the at least one of a liner sheet and a cellular core. The multilayered composite includes hollow microspheres dispersed within a metallic matrix material.

A multilayered material system includes at least one of a liner sheet and a cellular core, and a multilayered composite joined to the at least one of a liner sheet and a cellular core. The multilayered composite includes hollow microspheres dispersed within a metallic matrix material.

Systems and methods for generating graded lattice structures that can be used as infill for additively manufactured articles. Tailored sectioning and field-based smoothing are modified polygon, e.g., circle, packing algorithms that adjust the size of the circles based on physical field data to adapt the infill generation process to a field expected to be experienced by the article. Molecular dynamically generated lattice infill is based on force balancing a node distribution instead of a circle packing. Field data can be utilized to adjust the spacing of the node distribution according to a force balance equilibrium model that accounts for the field expected to be experienced by the article being additively manufactured. The resultant non-uniform honeycomb structures from tailored sectioning, field-based smoothing, and force-balancing robustly and efficiently address the connection issues with traditional non-uniform lattice structures.

Systems and methods for generating graded lattice structures that can be used as infill for additively manufactured articles. Tailored sectioning and field-based smoothing are modified polygon, e.g., circle, packing algorithms that adjust the size of the circles based on physical field data to adapt the infill generation process to a field expected to be experienced by the article. Molecular dynamically generated lattice infill is based on force balancing a node distribution instead of a circle packing. Field data can be utilized to adjust the spacing of the node distribution according to a force balance equilibrium model that accounts for the field expected to be experienced by the article being additively manufactured. The resultant non-uniform honeycomb structures from tailored sectioning, field-based smoothing, and force-balancing robustly and efficiently address the connection issues with traditional non-uniform lattice structures.

A method for generating or enhancing a shell for a printed three-dimensional (3D) object includes converting a 3D print file representing the 3D object to at least one vector file representing the 3D object; using a vector trapping algorithm on the at least one vector file to generate or enhance the shell in the at least one vector file; processing the at least one vector file with the shell to produce at least one rasterized vector file; and printing, using the at least one rasterized vector file, the 3D object with the shell.

A method for generating or enhancing a shell for a printed three-dimensional (3D) object includes converting a 3D print file representing the 3D object to at least one vector file representing the 3D object; using a vector trapping algorithm on the at least one vector file to generate or enhance the shell in the at least one vector file; processing the at least one vector file with the shell to produce at least one rasterized vector file; and printing, using the at least one rasterized vector file, the 3D object with the shell.

Additive manufacturing apparatuses, components of additive manufacturing apparatuses, and methods of using such manufacturing apparatuses and components are disclosed. An additive manufacturing apparatus may include a recoat head for distributing build material in a build area, a print head for depositing material in the build area, one or more actuators for moving the recoat head and the print head relative to the build area, and a cleaning station for cleaning the print head.