A tool (10) for processing a workpiece in a processing machine has a connecting portion (11) which is at the machine side during operation and is preferably standardized, for connecting the tool with a numerically controlled machine tool (30), a plasma duct (44) for conducting a generated plasma, and an outlet portion (13) which is at the workpiece side during operation and is disposed at the end of the duct (44), and which comprises one or a plurality of outlets (22) for supplying the plasma to a workpiece surface.

A hybrid article is disclosed including a coating circumscribing the lateral surface of a hollow core having a core material and a channel disposed within the lateral surface. The coating includes about 35% to about 95% of a first metallic material, and about 5% to about 65% of a second metallic material with a lower melting point than the first metallic material. A method for forming the hybrid article is disclosed including disposing the hollow core in a die, forming a gap between the lateral surface and the die, introducing a slurry having the metallic materials into the gap, and sintering the slurry, forming the coating. A method for closing an aperture of an article is disclosed including inserting the hybrid article into the aperture, and brazing the hybrid article to the article, welding the aperture with the hybrid article serving as weld filler, or a combination thereof.

Wires for use in electron beam or plasma arc additive manufacturing of titanium alloys are disclosed. The wires have a first portion comprising a first material, and a second portion comprising a second material. The combination of the first and second materials results in a titanium alloy product of the appropriate composition.

An alloy comprising about 0.5 weight percent to about 2 weight percent carbon, about 15 weight percent to about 30 weight percent chromium, about 4 weight percent to about 12 weight percent nickel, up to about 3 weight percent manganese, up to about 2.5 weight percent silicon, up to about 1 weight percent zirconium, up to about 3 weight percent molybdenum, up to about 3 weight percent tungsten, up to about 0.5 weight percent boron, up to about 0.5 weight percent impurities, and iron.

The present invention belongs to the field of multi-material additive manufacturing (AM), and in particular discloses a forming system and method of hybrid AM and surface coating. The hybrid forming system includes an additive forming device, a laser-assisted cold spraying (LACS) device and a workbench. The additive forming device and the LACS device are located above the workbench. During manufacturing, the additive forming device forms a part to be formed on the workbench layer by layer, and the LACS device performs coating peening treatment on inner and outer surfaces of the part to be formed during the forming process, thereby jointly completing the composite manufacturing of the part to be formed. The present invention makes full use of the rapid prototyping advantage of the short-flow AM process, and integrates the surface coating peening process into the hybrid forming system.

There are provided a cutting/polishing tool that may be readily manufactured and have an improved cutting performance, and a manufacturing method thereof. The method for manufacturing the cutting/polishing tool including at least one cutting/polishing body may comprise preparing a tool body, and forming a cladding layer including cutting material particles by spraying, onto an outer surface of the tool body, the cutting material particles and a metal powder having a specific gravity greater than a specific gravity of the cutting material particles while heating the outer surface of the tool body using a heating device installed in a lower side of the outer surface of the tool body so that the metal powder is deposited on the outer surface of the tool body, wherein the cladding layer configures the at least one cutting/polishing body.

A piston capable of withstanding high temperatures and extreme conditions of a combustion chamber of an internal combustion engine and manufactured with reduced costs is provided. The method of manufacturing the piston includes casting or forging the bulk of the piston as a single-piece with an open cooling gallery from an economical first material, such as steel, cast iron, or aluminum. The method further includes forming a portion of a combustion bowl surface, which is a small area of the piston directly exposed to the combustion chamber, from a second material by additive machining. The second material has a higher thermal conductivity and higher resistance to oxidation, erosion, and oil coking, compared to the first material. The additive machining process is efficient and creates little waste, which further reduces production costs.

An optical manufacturing process sensing and status indication system is taught that is able to utilize optical emissions from a manufacturing process to infer the state of the process. In one case, it is able to use these optical emissions to distinguish thermal phenomena on two timescales and to perform feature extraction and classification so that nominal process conditions may be uniquely distinguished from off-nominal process conditions at a given instant in time or over a sequential series of instants in time occurring over the duration of the manufacturing process. In other case, it is able to utilize these optical emissions to derive corresponding spectra and identify features within those spectra so that nominal process conditions may be uniquely distinguished from off-nominal process conditions at a given instant in time or over a sequential series of instants in time occurring over the duration of the manufacturing process.

A method for manufacturing an additively-manufactured object, in which a plurality of weld beads obtained by melting and solidifying a filler metal are deposited on a base portion to build a built-up object, includes: a support bead forming step of forming a support bead on the base portion; and a depositing step of depositing a weld bead on the support bead. When the support bead is formed to be inclined from a vertical direction in the support bead forming step, a ratio H/W of a height H to a width W of the support bead is set to 0.35 or more.

An iron-based alloy composition including: boron (B): 1. 6-2.4 wt. %; carbon (C): 2.2-3.0 wt. %; chromium (Cr): 3.5-5.0 wt. %; manganese (Mn): below 0.8 wt. %; molybdenum (Mo): 16.0-19.5 wt. %; nickel (Ni): 1.0-2.0 wt. %; silicon (Si): 0.2-2.0 wt. %; vanadium (V): 10.8-13.2 wt. %; and balanced with iron (Fe). Further, an item including a substrate portion and a hardfacing coating bonded to the substrate portion, wherein the hardfacing coating is made by an overlay welding process using the iron-based alloy composition.