In one aspect, a method of making a sintered article comprises providing a composite article comprising a porous exterior printed from a powder composition via one or more additive manufacturing techniques, the porous exterior defining an interior volume and providing a loose powder component in the interior volume. The porous exterior and loose powder component are simultaneously sintered to provide the sintered article comprising a sintered interior and sintered exterior.

A contained radiation power metering system for measuring power of a radiation source of an additive manufacturing machine includes a base configured to fit within the additive manufacturing machine, a radiation sensor connected to the base and configured to receive radiation from the radiation source and output a radiation power signal, and a wireless module disposed on the base configured to receive the radiation power signal and transmit the radiation power signal from the system to a separate wireless receiver.

A replacement compressor outlet housing includes a compressor outlet housing, having a volute and a radially inwardly extending finger extending from a radially inner end of the volute. The radially inwardly extending finger is welded to an insert. The insert has a bearing support defining a bore. The insert has a web connecting a ledge to the bearing support. The radially inwardly extending finger welded to the ledge.

An object of the present invention is to provide a production method for a backing plate that can reduce displacement of the groove. The present invention relates to a production method for a backing plate, comprising joining a plate-shaped body having a groove on one side and a cover member, wherein: the groove has at least two first parts extending in the longitudinal direction; a region where the body and the cover member are joined to each other has at least four first regions to be joined extending in the longitudinal direction and corresponding to two opposing side surfaces in each of the at least two first parts; and the joining of the body and the cover member to each other in the at least four first regions to be joined is performed by: (a) joining the body and the cover member to each other in one first region to be joined corresponding to one side surface in one first part; (b) joining the body and the cover member to each other in one region to be joined, among the remaining regions to be joined, corresponding to one side surface in another first part; and (c) repeating the step (b).

A method for joining first and second metal portions includes welding together the portions such that a weld nugget joins them, compressively stressing the weld nugget throughout its volume, and heat treating the compressively stressed weld nugget to recrystallize metal therein. A method for strengthening a metal element includes imparting compressive stress within a region of the metal element, and heat treating it such that metal of the region recrystallizes with a finer grain structure than was present in the region before the step of imparting the compressive stress. A repaired metal part includes a first, original section made of metal alloy, and a second, repair section of metal alloy joined to the original section by a recrystallized metal weld having crystals within +/3 ASTM-112 grain sizes of the size of the crystals of the original and repair sections.

A joint including: a first component and a second component; the first component includes a bond region and an array of projections extending from the bond region, wherein the projections are embedded in the second component.

An additively manufactured three-dimensional article includes layers successively built up from a metal powder by an additive manufacturing process by scanning a selected portion of the metal powder with electromagnetic radiation, and an anti-counterfeiting mark formed in at least one layer of the layers during the additive manufacturing process.

Provided is an apparatus that includes a high energy beam configured to make a first weld at a first position on a workpiece; at least one deflection lens configured to deflect the high energy beam so as to cause the high energy beam to make a second weld at a second position; at least one focusing lens configured to focus the high energy beam; at least one astigmatism lens; and at least one controller. The controller is configured to shape the high energy beam so that the shape of the high energy beam on the workpiece is longer in a direction parallel to a deflection direction of the high energy beam than in a direction perpendicular to the deflection direction of the high energy beam. A length ratio is varying as a function of the power of the energy beam, while the width in the perpendicular direction is constant.

A method for improving the surface of an aluminum alloy article includes manufacturing the aluminum alloy article using an additive manufacturing technique, wherein the article as-manufactured includes one or more of cracks, roughness, or porosity at a surface of the article; coating the surface of the aluminum alloy article with a diffusion element, the diffusion element being capable of diffusing at least 0.2 mils into the article; heating the aluminum alloy article coated with the diffusion element to cause the diffusion element to diffuse the at least 0.2 mils into the article, thereby forming a diffusion layer of at least 0.2 mils in thickness comprising both aluminum alloy and diffusion element; and removing the diffusion layer from the aluminum alloy article, whereby upon the removing, a resulting improved surface of the article comprises fewer or smaller cracks, reduced roughness, or reduced porosity.

A method for improving the surface of an aluminum alloy article includes manufacturing the aluminum alloy article using an additive manufacturing technique, wherein the article as-manufactured includes one or more of cracks, roughness, or porosity at a surface of the article; coating the surface of the aluminum alloy article with a diffusion element, the diffusion element being capable of diffusing at least 0.2 mils into the article; heating the aluminum alloy article coated with the diffusion element to cause the diffusion element to diffuse the at least 0.2 mils into the article, thereby forming a diffusion layer of at least 0.2 mils in thickness comprising both aluminum alloy and diffusion element; and removing the diffusion layer from the aluminum alloy article, whereby upon the removing, a resulting improved surface of the article comprises fewer or smaller cracks, reduced roughness, or reduced porosity.