Abstract:
PROBLEM TO BE SOLVED: To provide a stainless steel foil which exhibits excellent salt corrosion resistance, while having high strength and excellent oxidation resistance at high temperatures, and a catalyst carrier for an exhaust gas cleaning device using the foil.SOLUTION: The stainless steel foil has a composition comprising, by mass, ≤0.05% C, ≤2.0% Si, ≤1.0% Mn, ≤0.003% S, ≤0.05% P, 25.0 to 35.0% Cr, 0.05 to 0.30% Ni, 3.0 to 10.0% Al, ≤0.10% N, ≤0.02% Ti, ≤0.02% Nb, ≤0.02% Ta, 0.005 to 0.20% Zr, ≤0.02% Ce, 0.03 to 0.20% REM other than Ce, at least one selected from Mo and W by 0.5 to 6.0% in total, and the balance Fe with inevitable impurities.
Abstract:
A method and an apparatus pertaining to polarization combining in additive manufacturing may involve emitting two or more beams of light with a first intensity. Each of the two or more beams of light may be polarized and may have a majority polarization state and a minority polarization state. A respective polarization pattern may be applied on the majority polarization state of each of the two or more beams of light. The two or more beams of light may be combined to provide a single beam of light.
Abstract:
A method of additive manufacture suitable for large and high resolution structures is disclosed. The method may include sequentially advancing each portion of a continuous part in the longitudinal direction from a first zone to a second zone. In the first zone, selected granules of a granular material may be amalgamated. In the second zone, unamalgamated granules of the granular material may be removed. The method may further include advancing a first portion of the continuous part from the second zone to a third zone while (1) a last portion of the continuous part is formed within the first zone and (2) the first portion is maintained in the same position in the lateral and transverse directions that the first portion occupied within the first zone and the second zone.
Abstract:
An additive manufacturing system including a two-dimensional energy patterning system for imaging a powder bed is disclosed. Improved chamber designs, multiple chambers, powder handling and re-use systems, and powder characterization methods are disclosed.
Abstract:
A method and an apparatus for collecting powder samples in real-time in powder bed fusion additive manufacturing may involves an ingester system for in-process collection and characterizations of powder samples. The collection may be performed periodically and uses the results of characterizations for adjustments in the powder bed fusion process. The ingester system of the present disclosure is capable of packaging powder samples collected in real-time into storage containers serving a multitude purposes of audit, process adjustments or actions.
Abstract:
La présente invention se rapporte à un panneau composite (20) comprenant une structure sandwich formée par une âme centrale (21) présentant une structure alvéolaire primaire (210), par exemple du type nid d'abeille, prise en sandwich entre deux peaux (22), la structure alvéolaire primaire comprenant un réseau d'alvéoles principales (23), le panneau composite (20) étant caractérisé en ce qu'il comprend une pluralité de chevilles (24), chaque cheville (24) étant d'une part, agencée pour se loger et coopérer à l'intérieur d'une alvéole principale (23) et, d'autre part, formée d'une structure alvéolaire secondaire (240) comprenant un réseau d'alvéoles secondaires (25).
Abstract:
Heat spreaders can help promote heat distribution at the surface of a heat sink. However, overly isotropic or anisotropic heat conduction through heat spreaders can limit their effectiveness. Heat spreaders providing for lateral distribution of heat can include a tapered structure containing a metal-diamond composite. The metal-diamond composite includes a continuous metallic phase and a plurality of micron-scale diamond particles located in spaced apart regions of the continuous metallic phase. An interlayer containing the continuous metallic phase but lacking micron-scale diamond particles is disposed between each of the spaced apart regions, and the metal-diamond composite increases in lateral size in a direction of increased tapering. Heat spreaders can be formed by disposing a first mixture containing micron-scale diamond particles and metal nanoparticles in first regions that are vertically spaced apart from each other, and at least partially fusing the metal nanoparticles to form a tapered structure.