Abstract: Apparatus and a method for forming a metallic component by additive layer manufacturing are provided. The method includes the steps of using a heat source such as a laser to melt the surface of a work piece and form a weld pool; adding wire or powdered metallic material to the weld pool and moving the heat source relative to the work piece so as to progressively form a new layer of metallic material on the work piece; applying forced cooling to the formed layer; stress relieving the cooled layer by applying a peening step, for example with a pulsed laser, and repeating the above steps as required to form the component layer by layer.

Abstract: The invention is directed to a friction stir welding device which can realize appropriate friction stir welding while preventing a welding tool from being worn out and damaged. Therefore, the friction stir welding device is provided with a welding tool which rotates while abutting on a member to be welded to cause a plastic flow phenomenon in the member to be welded, a tool holder which grasps the welding tool and rotates together with the welding tool, supply paths which are formed in the tool holder and supply a refrigerant to the welding tool.

Abstract: A method and related system and apparatus for refurbishing worn rail transit rails to a desired refurbished rail surface profile substantially similar to the surface profile of a newly-manufactured rail, comprising: depositing a first line of fill material along a lower-inside section to be refurbished; in N?1 successive iterations thereafter, progressing circumferentially from the lower-inside section to be refurbished to an upper-outside section to be refurbished, depositing an n+1th line of fill material adjacent an nth line of fill material wherein the nth line of fill material substantially provides a flow barrier against the n+1th line of fill material flowing past the nth line of fill material.

Abstract: A method and apparatus for depositing metals and metal-like substances in two and three dimensional form without a substrate in a safe, rapid and economical fashion using gas shielded arc welding equipment and programmable robotic motion. The method and apparatus includes the use and application of robotic controls, temperature and position feedback, single and multiple material feeds, and semi liquid deposition thereby creating near net shape parts particularly well suited to rapid prototyping and lower volume production.

Abstract: Systems and methods for fabricating multi-functional articles comprised of additively formed gradient materials are provided. The fabrication of multi-functional articles using the additive deposition of gradient alloys represents a paradigm shift from the traditional way that metal alloys and metal/metal alloy parts are fabricated. Since a gradient alloy that transitions from one metal to a different metal cannot be fabricated through any conventional metallurgy techniques, the technique presents many applications. Moreover, the embodiments described identify a broad range of properties and applications.

Abstract: An electrode for use with a manufacturing apparatus to deposit a material onto a carrier body and to circulate a coolant through said electrode. The electrode includes a shaft having a first end and a second end spaced from each other. Also included is a head disposed on said second end of said shaft. Further included is a channel defined by an interior surface of said shaft, the channel extending from the first end to a terminal end, wherein the terminal end comprises a non-planar geometry, the channel configured to route the coolant therethrough. Yet further included is a channel coating disposed on said interior surface for maintaining thermal conductivity between said electrode and the coolant, wherein said head has an exterior surface and a head coating is disposed on said exterior surface of said head.

Abstract: A welding device for powder welding is described, which comprises a welding head for transportation of at least one welding electrode to a welding area, and a powder transportation device for transportation of powder from a container to the welding area. The powder transportation device comprises at least a first pipe which at a first end has an opening which is arranged to be placed in the container in order to transport fluxing agent from the container. The powder transportation device comprises at least a first ejector which is connected to the second end of the first pipe and which is arranged to transport powder from the container via the first pipe using pressurized gas.

Abstract: A method is described for producing a sawing bead for use in a sawing cord. Sawing cords are used for cutting hard and brittle materials. In the method, laser cladding is used to form an abrasive layer on a small metallic tube (204) or sleeve. The abrasive layer (220) comprises a metal matrix material in which abrasive particles such as diamond, cubic boron nitride or other hard cutting materials are embedded. The metal matrix material preferably comprises an active metal that improves wetting and adhesion of the abrasive particles. Although the abrasive particles are relative large—with a particle size in excess of 100 ?m—they are evenly distributed throughout the abrasive layer. This is achieved by letting the tube (204) rotate relative to the laser cladding system possibly in combination with a relative axial movement so that the cladding track loops on itself thereby forming an abrasive layer (220). Additionally the method allows to shape the sawing bead for improved geometrical tolerances and centricity.

Abstract: To facilitate overlay welding while securing a certain hardness of an overlaid portion and preventing welding defects, an overlay welding method for performing overlay welding on a surface P to be overlaid of a base material 50 includes a preparing step of forming a bottomed depression 51, with the surface P to be overlaid being a circumferential surface 51a thereof, and an overlaying step at which a filler material is fed toward a bottom face 51b of the depression 51, and a laser beam as a heat source is irradiated on the bottom face 51b of the depression 51 to which the filler material is fed, thereby forming an overlaid portion W reaching the surface P to be overlaid, while filling the bottom face 51b of the depression 51 with a melted filler material.

Abstract: A method and apparatus for microplasma spray coating a portion of a substrate, such as a gas turbine compressor blade, without masking any portions thereof. The apparatus includes a microplasma gun with an anode, cathode, and an arc generator for generating an electric arc between the anode and cathode. An arc gas emitter injects inert gas through the electric arc. The electric arc is operable for ionizing the gas to create a plasma gas stream. A powder injector injects powdered material into a plasma stream. A localized area of the compressor blade is coated with the powdered material without having to mask the compressor blade.

Abstract: An electric equipment includes: first opening 7 provided on rear panel 4 to exhaust internal air out of casing 1; first partition 12 covering second opening 8 provided on left side panel 2 and having fourth opening 10; second partition 13 covering third opening 9 provided on right side panel 3 and having fifth opening 11; and radiator 14 disposed so as for opening 14C at one end to face opening 7. The configuration can prevent weld spatters or the like from coming into casing 1 directly.

Abstract: Tooling systems including a mandrel for receiving, and providing shape to, a metallic deposit applied using a high temperature additive manufacturing device; a metallic cladding applied to the mandrel for reducing contamination of the metallic deposit; and at least one cooling channel associated with the mandrel for removing heat from the system.

Abstract: A powder port blow-off system for a plasma spray process includes a faceplate that includes a bore therein that is co-radially aligned with a nozzle of a plasma spray gun, which emits a plasma plume. A plurality of powder feed ports are arranged circumferentially around the nozzle for injecting a flow of powder particles toward the plasma plume. A plurality of powder port blow-offs are arranged circumferentially around the nozzle in order to direct blow-off gas across the powder feed ports. The powder port blow-offs are directed across the plasma plume to create a vortex for carrying away powder particles unconsumed by the plasma plume.

Abstract: An overlay welding apparatus for depositing an overlay weld on rotating tube stock. The apparatus comprises an elongate frame and supports for rotating the tube stock about a central axis thereof. The tube stock is inclined relative to horizontal when supported by the supports, such that improved cooling is achieved with a cooling medium delivered to the interior of the tube stock as the tube stock rotates. The apparatus further comprises a welding carriage mounted to the frame and adapted for travel along the frame. The welding carriage supports an overlay welding head for depositing an overlay weld on a surface region of the tube stock as the tube stock is rotated, and supports a wash welding head for reducing a heat-affected zone in the surface region as the tube stock is rotated. A steady rest is mounted adjacent the welding carriage for movement with the welding carriage along the frame.

Abstract: Apparatus for forming a component by the deposition of a weld material includes a welding head 12 providing a weld material 24 to be deposited on a substrate, in order to build up the component. A flow of current is provided between the welding head 12 and the substrate to thereby melt the weld material 24 and form a molten weld pool in the substrate. The substrate is moved relative to the welding head and the molten weld material is gradually deposited upon the molten weld pool to build up the components layer by layer. The molten weld pool thus effectively moves along the substrate. A supply of argon at cryogenic temperatures is provided just behind the molten weld pool to quench the weld material, thus refining and improving its crystal structure.