A deposition planning method for an additively manufactured object includes: acquiring shape data; determining a welding path of each layer by slicing a three-dimensional shape of the additively manufactured object into layers; classifying a plurality of welding paths into intersection region paths and constant region paths; dividing the intersection region paths into a lower layer path and an upper layer path of an intersection portion; and determining welding conditions of the intersection region paths such that an upper layer deposit amount is more than a lower layer deposit amount, a sum of the upper layer deposit amount and the lower layer deposit amount is equal to a deposit amount in the constant region paths, and in a cross-section orthogonal to a longitudinal direction of the weld beads formed along the upper layer path, profiles of the weld beads adjacent to each other overlap each other.

A device may position a torch assembly relative to a workpiece. A device may initiate a pilot arc between a plasma electrode and a grounded portion of a torch assembly, the grounded portion of the torch assembly grounded using a component with a variable resistance. A device may initiate a wire arc between a first wire element and the workpiece. A device may add material to the workpiece while the torch assembly traverses the workpiece.

A method for manufacturing a rolling or plain bearing ring includes providing a metallic ring member and applying a load carrying surface onto the metallic ring member by use of a steel wire Directed Energy Deposition (DED) operation and/or a steel metal powder DED operation. Preferably, the steel wire and/or the steel metal powder includes 0.10-0.50 wt % of carbon and 0.50-1.20 wt % of boron.

A method for controlling a start of a metalworking operation. The method includes detecting an initial contact between a wire being fed from a welding apparatus and a workpiece and, in response to the detection, halting feeding of the wire from the welding apparatus. The method further includes activating a high energy heat source configured to heat a tip of the wire and resuming the feeding of the wire from the welding apparatus when the tip of the wire is heated by the high energy heat source to a plastic state. The feeding of the wire is resumed by measuring a force feedback from the wire contacting the workpiece. An apparatus for implementing the method is also disclosed.

A method for manufacturing a housing of a turbomachine, in particular a housing of a radial turbo compressor. The method includes the following steps: a) providing a hollow body that is closed in a circumferential direction and extends along an axis; b) coating the inner side of the hollow body with a corrosion-resistant layer that is more resistant to corrosion than the material of the hollow body; c) dividing the hollow body into two half-shells along the axis in a separation joint plane; d) assembling the housing by joining both half-shells and fastening both half-shells in the region of the separation joints, which were created by separation, by means of detachable fastening elements.

The invention relates to a device and a method for producing three-dimensional shaped parts by means of a layer construction method on a construction field in a construction space of a device, wherein materials are supplied to and discharged from the construction space. A supplying and discharging of all materials is carried out in a spatial direction of the device.

The present disclosure relates to new materials comprising Al, Co, Fe, and Ni. The new materials may realize a single phase field of a face-centered cubic (fcc) solid solution structure immediately below the solidus temperature of the material. The new materials may include at least one precipitate phase and have a solvus temperature of at least 1000 C. The new materials may include 4.4-11.4 wt. % Al, 4.9-42.2 wt. % Co, 4.6-28.9 wt. % Fe, and 44.1-86.1 wt. % Ni. In one embodiment, the precipitate is selected from the group consisting of the L1.sub.2 phase, the B2 phase, and combinations thereof. The new alloys may realize improved high temperature properties.

A nozzle for additive manufacturing includes a plasma gas tube operable to provide plasma gas to a plasma flame, and a source material tube arranged concentrically inside the plasma gas tube such that the source material passes through the plasma flame. An apparatus and method for additive manufacturing are also disclosed.

A method of forming a valve seat of an engine head formed from a first composition includes forming a groove at a predetermined valve seat location of a bore defined by the engine head. A source of directed heat energy preheats at least the valve seat location to about a temperature of the melting point of the first composition with the source of directed heat energy. The source of directed heat energy is infused with a material having a second composition generating a melt pool upon the groove by direct metal deposition with the melt pool including the second composition. The second composition includes a heat conductivity generally equal to a heat conductivity of the first composition for providing efficient transfer of heat energy from the first composition to the second composition.

A wire feed control system includes an anti-twist mechanism and a controller programmed to operate the anti-twist mechanism, responsive to a measured degree of twist of a wire on a trajectory between a feed for the wire and a plasma transfer wire arch (PTWA) torch, to maintain the degree of twist within a predetermined range defined by natural rotation introduced to the wire by the PTWA torch.