Embodiments of the present disclosure are drawn to additive manufacturing apparatus and methods. An exemplary additive manufacturing method may include forming a part using additive manufacturing. The method may also include bringing the part to a first temperature, measuring the part along at least three axes at the first temperature, bringing the part to a second temperature, different than the first temperature, and measuring the part along the at least three axes at the second temperature. The method may further include comparing the size of the part at the first and second temperatures to calculate a coefficient of thermal expansion, generating a tool path that compensates for the coefficient of thermal expansion, bringing the part to the first temperature, and trimming the part while the part is at the first temperature using the tool path.

A method of forming a cut in a polymeric component includes providing a blade assembly including at least one blade, and a mandrel. The mandrel includes a rigid portion and a conformal support ring. The conformal support ring includes a material softer than the material forming the blade. A polymeric component is located between the mandrel and the at least one blade. The polymeric component is cut via the at least one blade. The at least one blade extends into the conformal support ring after the at least one blade has penetrated through the polymeric component.

Hollow composite dowel bar assemblies, their manufacture, and apparatus for manufacture. The dowel bar assemblies may include an elongate and hollow core, a protective jacket coating at least the sidewall exterior of the core, and a sealing structure coupled with each end of the combined core and jacket, that are configured to protect the core from the environment.

A method for producing a three-dimensional shaped product having an undercut region on the upper side and an interior space forming region on the lower side, by lamination of powder, sintering of a laminated layer and cutting of the sintered layer, includes the steps of, when a cutting path where the side is a location of the top edge of the interior space that has been created during creation of horizontal cutting paths for cutting of the interior space forming region, setting by the CAD/CAM system a command for carrying out further lamination at the location of the top edge, or creating a horizontal cutting path on a location on an upper side above the horizontal cutting path by a cutting width and setting a command to the cutting tool for terminating cutting along the cutting path, thereby avoiding having to cut a created horizontal cutting path.

A balloon catheter is disclosed having a distal side shaft formed of a resin material, a proximal shaft formed of a metal material, and an inner tubular shaft disposed along an inclined portion and a concave portion of the proximal shaft. The distal side shaft is joined to the proximal shaft at the small diameter portion on the proximal side from a distal opening of the proximal shaft. The distal opening of the proximal shaft is disposed on the distal side from a guide wire proximal opening.

Disclosed embodiments describe a reconstructed filament comprising natural protein fibrils and an additive. Disclosed embodiments also describe a wool comprising: a plurality of staple fibers formed of reconstructed filaments, wherein the reconstructed filaments comprise natural protein fibrils and an additive. Disclosed embodiments also describe a yarn spun from staple fibers, the yarn comprising: staple fibers comprising reconstructed filament, wherein the reconstructed filament comprises natural protein fibrils and an additive. Disclosed embodiments also describe an item comprising a reconstructed filament, wherein the reconstructed filament comprises natural protein fibrils and an additive.

An imprint master template including a first fine pattern unit having an upper surface on which a fine pattern is formed, a second fine pattern unit disposed adjacent to the first fine pattern unit and having an upper surface on which a fine pattern is formed, and a supporting part configured to support the first fine pattern unit and the second fine pattern unit. A side surface of the first fine pattern unit faces a side surface of the second fine pattern unit. The side surface of the first fine pattern unit includes a first surface which is perpendicular to the upper surface and a second surface which is inclined at a predetermined angle with respect to the first surface. The side surface of the second fine pattern unit includes a first surface which is perpendicular to the upper surface and a second surface which is inclined at a predetermined angle with respect to the first surface.

An efficient method for preparing a highly-directional highly-dense two-dimensional material film. The method comprises: using a circular tube with a smooth inner surface as a casting mold; and pouring a solution containing a two-dimensional material into the mold when the mold rotates at high speed in a circumferential direction, wherein the solution is uniformly coated on the inner surface of the mold by centrifugal force, the centrifugal rotation generating a shearing force that causes the two-dimensional material to be directionally and regularly arranged layer upon layer in a circumferential direction in the solution, and, the centrifugal force facilitates highly-dense accumulation of the two-dimensional material, thereby obtaining a highly-directional highly-dense two-dimensional material film. The method is applicable in the preparation of a variety of two-dimensional materials such as graphene, a composite material film thereof, and a laminated heterostructure film, and greatly improves electrical, thermal, and mechanical properties of a film.

A disposable absorbent article includes a topsheet, a backsheet, and an absorbent structure positioned intermediate the topsheet and the backsheet. The topsheet includes an elongate central portion and two wing portions opposingly laterally extending from the elongate central portion. The topsheet forms a wearer-facing surface in the two wing portions. The topsheet includes one or more continuous channel-forming structures following one or a plurality of paths. The one or plurality of paths is substantially symmetric about a central longitudinal axis of the topsheet and predominately circumscribes a discharge locus on the central longitudinal axis of the topsheet. The one or more continuous channel-forming structures extends across a central lateral axis of the topsheet. The topsheet includes a continuous hinge forming structure following a path extending generally longitudinally along one of the wing portions and extending across the central lateral axis of the topsheet.

A sheet of thermoplastic material and the manufacturing process thereof by block processing is disclosed, wherein the material is a thermoplastic polyurethane (TPU) based on aliphatic polyethers or aliphatic polyesters, without addition of process solvents and/or plasticisers.