A micro-region semi-solid additive manufacturing method is provided, where rod-shaped materials are used as consumables, and front ends of the consumables are heated by means of high-energy beam, an electric arc, a resistance heat, or the like, to enable the front ends 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 are applied to the consumables to perform shearing, agitation and extrusion on the semi-solid front ends, 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.

Provided are a systems and methods for manufacturing objects by solid freeform fabrication, especially titanium and titanium alloy objects, wherein the deposition rate is increased by using two separate heat sources, one heat source for heating the deposition area on the base material and one heat source for heating and melting a metallic material, such as a metal wire or a powdered metallic material.

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 (β.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 (β.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).

A method for manufacturing a component of a rotary machine, the component extends in an axial direction and a radial direction vertical thereto, and has an inner channel, extending from a first end in a center of the component to a second end at a radial limiting surface of the component and which is partially closed. A blank includes the center of the component and is limited by an outer surface in the radial direction. The maximum dimension of the outer surface in the radial direction is smaller than the dimension of the limiting surface in the radial direction, A first subtractive process step is performed such that a part of the channel is manufactured by a machining process, with the part extending from the first end of the channel to the outer surface of the blank. Afterwards the channel is finished by a build-up process on the blank.

An embodiment of a method includes fabricating a first single crystal boule having a uniform composition and grain orientation. The first uniform single crystal boule is divided into a first plurality of layered shapes. The shapes of the first plurality are stacked with at least a second plurality of layered shapes along a first axis. The second plurality of layered shapes have at least one physical aspect differing from at least one corresponding physical aspect of the first plurality of layered shapes. The first plurality of layered shapes and at least the second plurality of layered shapes are joined via a field assisted sintering technique (FAST) to form a bulk component.

A method and apparatus for applying a cladding layer to a surface of a component uses a cladding tool having a maximum reach less than the size of the surface. Geometry of the surface is segmented into a plurality of tessellated segments, each of which has a peripheral extent determined by a maximum reach of the cladding tool. A nominal tool subpath for each tessellated segment is generated, and then combined to generate a nominal tool path for depositing the cladding layer on the surface. The surface is clad using the nominal toolpath, including a process of adjusting the nominal tool path to an adjusted tool path that accounts for dimensions of the bead to be deposited by the tool to match an edge of the bead to be deposited with an edge of a previously deposited bead.

A method of fabricating of an object includes causing a first heat source to heat a feed material to form a melt pool of the feed material on a surface. The method further includes causing a second heat source to heat the melt pool on the surface to regulate grain formation of the feed material in the melt pool as the melt pool cools and solidifies on the surface to form at least a portion of the object. The method also includes causing the first heat source and the second heat source to move relative to the surface as the melt pool is formed and cooled.

Systems and methods resolve stresses in additive manufacturing. A stress resolution profile including frequency and amplitude parameters of an ultrasonic input are determined based on physical properties of the product. Successive layers of a material are added and energy is applied to incorporate the material of each layer into the product. An ultrasonic input is applied with the determined parameters to resolve stress as the product is built up. The ultrasonic input is varied as a depth of the material incorporated into the product increases.

Provided are a systems and methods for manufacturing objects by solid freeform fabrication, especially titanium and titanium alloy objects, wherein the deposition rate is increased by using two separate heat sources, one heat source for heating the deposition area on the base material and one heat source for heating and melting a metallic material, such as a metal wire or a powdered metallic material.

The production method of the novel austenitic stainless steel kitchen knives and the low-carbon high-chromium martensitic alloy powder of the present invention include providing an austenitic stainless steel knife body. It cladding low-carbon high-chromium martensitic alloy powder on the austenitic stainless steel cutter body through high-frequency density laser pulse cladding process, tempering treatment, cutter face grinding, end face grinding, and edge processing; The invention adopts an austenitic stainless steel cutter body, and then adopts a high-frequency density laser pulsation cladding process to make a low-carbon high-chromium martensitic stainless steel at the cutting edge by plasma electrofusion.