A device and method for the controlled processing of at least one workpiece (1), comprising a workpiece carrier (2) on which at least one workpiece receptacle (2.1) is present remote from a rotary shaft (2.0), at least one processing unit (3) and at least one inspection unit (4), which are offset relative to the rotary shaft (2.0) by an angular distance (.sub.n) from one another, are each arranged so that they can be adjusted and moved in a translational manner radially with respect to the rotary shaft (2.0), so that a processing beam (E) and an inspection beam (P), offset relative to one another by the angular distance (.sub.n), describe the same spiral-shaped movement path (S) relative to the workpiece carrier (2), and the inspection results derived at an inspection point (P.sub.P) are used to control process parameters in order to change the effect of the processing beam (E).

Apparatuses and methods for in situ thermal treatment for PBF systems are provided. An apparatus for a PBF-based 3-D printer can include a heating element for heating a gas, wherein the heated gas is delivered via at least one port of the 3-D printer to conduct heat treatment on a build piece during printing. A method for thermal treatment in a PBF-based 3-D printer can include heating a gas and delivering it via at least one port of the 3-D printer arranged proximate a build piece to conduct heat treatment during printing. An apparatus for a PBF-based 3-D printer can include a temperature-regulating element for changing a temperature of a gas, at least one channel for delivering the gas to a plurality of ports, and a controller for determining gas temperatures and durations of application of the gas via different ones of the plurality of the ports.

The invention relates weldments useful as heat transfer tubes in pyrolysis furnaces. The invention relates to tubes that are useful in pyrolysis furnaces. The weldments include a tubular member and at least one mixing element. The tubular member comprises an aluminum-containing alloy. The mixing element comprises an aluminum-containing alloy. The mixing element's aluminum-containing alloy can be the same as or different from the tubular member's aluminum-containing alloy. Other aspects of the invention relate to pyrolysis furnaces which include such weldments, and the use of such pyrolysis furnaces for hydrocarbon conversion processes such as steam cracking.

Disclosed is a micro-region semi-solid additive manufacturing method, where rod-shaped materials are used as consumables, and heating modes such as a high-energy beam, an electric arc, a resistance heat, or the like are applied to the front end of the consumables to enable the front end to be in a semi-solid state in which the solid-liquid two phases coexist; at the same time, the rotational torsion and the axial thrust applied on the consumables have powerful effects such as shearing, agitation and extrusion, that is, the mold-free semi-solid rheoforming is performed. The consumable is transmitted to the bottom layer metal continuously in this manner to form metallurgical bonding, the stacking process is repeated according to a planned route obtained after discretization slicing treatment, and then an object or a stack layer in a special shape can be formed.

A method of fabricating an object by additive manufacturing is provided. The method includes irradiating a portion of powder in a powder bed, the irradiation creating an ion channel extending to the powder. The method also includes applying electrical energy to the ion channel, wherein the electrical energy is transmitted through the ion channel to the powder in the powder bed, and energy from the irradiation and the electrical energy each contribute to melting or sintering the portion of the powder in the powder bed.

A method for controlling deformation and precision of a part in parallel during an additive manufacturing process includes steps of: performing additive forming and isomaterial shaping or plastic forming, and simultaneously, performing one or more members selected from a group consisting of isomaterial orthopedic process, subtractive process and finishing process in parallel at a same station, so as to achieve a one-step ultra-short process, high-precision and high-performance additive manufacturing, wherein: performing in parallel at the same station refers to simultaneously implement different processes in a same pass or different passes of different processing layers or a same processing layer when a clamping position of the part to be processed is unchanged. The method can realize the one-step high-precision and high-performance additive manufacturing which has the ultra-short process, has high processing precision, and the parts can be directly applied, so that the method has strong practical application value.

A method of providing a tool with a conformal cooling passage includes rough machining a cavity generally corresponding to a manufactured part shape using CAD data. Conformal cooling slots are cut in the cavity using the CAD data. The conformal cooling slots are welded shut using the CAD data to provide conformal cooling passages. A class A surface is machined over the conformal cooling passage and corresponds to a finished manufactured part shape using the CAD data.

A source of heat energy and a source of material for performing a material additive process upon the thin wall member is disclosed. A fixture is located relative to the thin wall element. The source of heat energy used for forming a joining member between the workpiece and the fixture to fixedly secure the fixture to the workpiece preventing the thin wall member from deforming when subject to the source of heat energy. A direct material additive process is upon the thin wall member adding material to the thin wall member to improve physical characteristics of the thin wall member. The joining member is mechanically removed from the workpiece after the work piece cools. A portion of the material is mechanically removed from the thin wall member to achieve desired dimensional characteristics.

A method of making a light weight housing for an internal component is provided. The method including the steps of: forming a first metallic foam core into a desired configuration; forming a second metallic foam core into a desired configuration; inserting an internal component into the first metallic foam core; placing the second metallic foam core adjacent to the first metallic core in order to secure the internal component between the first metallic foam core and the second metallic foam core; applying an external metallic shell to an exterior surface of the first metallic foam core and the second metallic foam core; and securing an inlet fitting and an outlet fitting to the housing, wherein a thermal management fluid path for the internal component into and out of the housing is provided by the inlet fitting and the outlet fitting.

A porous tool includes a mold body and an additively-manufactured film attached to a surface of the mold body. The film includes a porous layer and a nonporous support layer. The porous layer may include a surface having an array of surface pore openings, a network of interconnected passages in fluid communication with the surface pore openings, and one or more lateral edges that have an array of edge pore openings in fluid communication with the interconnected passages. Methods of forming a porous tool include depositing additive material on a build surface using a directed energy deposition system to form a film while simultaneously subtracting selected portions of the additive material from the film using laser ablation. Methods of forming a molded component include conforming a moldable material to a shape using a porous tool that includes a mold body and an additively-manufactured film, and evacuating outgas from the moldable material through a porous layer of the film.