A method for manufacturing a sandwich panel as a semi-finished product where at least one layer of a non-metallic material is positioned between at least two metallic layers. At least one of the metal layers is shaped into a three dimensional layer and the metal layers are material closured to each other by a tack weld on the metallic contacts between the metallic layers to enable resistance weldability of the semi-finished product in order to connect the semi-finished product to a desired combination of solutions.

An additive method for preparing a large die blank for isothermal forging comprising preparing a plurality of titanium-zirconium-molybdenum alloy plate-shaped elements of a preset shape; preparing a plurality of foil-shaped intermediate layers of pure tantalum, a niobium-tungsten alloy and a tantalum-tungsten alloy of a preset shape; forming an assembly of a preset configuration, such that the foil-shaped intermediate layers are sandwiched between the titanium-zirconium-molybdenum alloy plate-shaped elements; applying an axial pressure to the assembly under high-temperature vacuum to perform diffusion connections to obtain a primary blank; subjecting the primary blank to a homogenization treatment under a high temperature, vacuum or inert gas protection to homogenize the structure and components at a connection interface in the primary blank; and cooling the homogenized primary blank to obtain a die blank.

The present disclosure is directed to a multi-segment device comprising an elongate first portion comprising a first metallic material, an elongate second portion comprising a different metallic material, the first and second elongate portions being directly joined together end to end, a heat affected zone surrounding an interface of the elongate first portion and the elongate second portion, a shapeable distal end formed from at least a portion of the elongate second portion, a coil disposed about a portion of the elongate second portion.

An insulating container can be configured to retain a volume of liquid, and include a first inner wall having a first end having an opening extending into an internal reservoir, and a second outer wall forming an outer shell. The second outer wall can include a second end configured to support the container on a surface. The second outer wall can include a dimple, and the dimple can include a circular base and an inner portion converging to an opening extending into the second outer wall. The opening can be sealed by a resin, and the circular base can be covered by disc formed of the material. The outer wall and the inner wall can be constructed from different materials such that the outer wall is harder and resists indentation, and the inner wall reduces the overall weight of the container.

System and method for welding a precipitation-hardened superalloy, e.g., Nickel-based superalloy, article to produce a weld joint, wherein one or more sections are defined longitudinally within the entire length of the weld joint to be produced, melting of superalloy material adjacent the weld joint to be produced in one of the one or more sections is subsequently performed, by directing a power beam towards the section and longitudinally oscillating the power beam within the section, an intensity of the power beam and a frequency of oscillation of the power beam are selected such that the superalloy material adjacent the weld joint to be produced are caused to become uniformly heated and melt thereby producing the weld joint from the consolidation of the superalloy material so melted, where the weld joint is thereafter solidified by gradually reducing the power beam intensity while oscillating longitudinally the power beam within the section.

A method for joining at least two parts by using ultrashort laser pulses of a laser beam of an ultrashort pulse laser is provided. At least one of the two parts to be joined is transparent for a wavelength of the ultrashort laser pulses. The method includes joining the at least two parts by using the ultrashort laser pulses of the laser beam along a joining seam. The joining seam has at least two joining points and a joining gap lying between the at least two joining points. Each joining point is longer than 10 m.

Bulk materials having a kinetically limited nano-scale diffusion bond is provided. The bulk materials having a kinetically limited nano-scale diffusion bond includes transparent material, absorbent opaque material and a diffusion bond. The transparent material has properties that allow an electromagnetic beam of a select wavelength to pass there through without more than minimal energy absorption. The absorbent opaque material has properties that significantly absorb energy from the electromagnetic beam. The diffusion bond is formed by the electromagnetic beam bonding the transparent material to the absorbent opaque material. Moreover, the diffusion bond has a thickness that is less than 1000 nm.

A joint structure includes a first metallic material having a first projection, a second metallic material similar to and weldable to the first metallic material, and a different material having a first penetrating part and sandwiched between the first and second metallic materials, the different material being difficult to weld to the first and second metallic materials. The first projection is smaller than the first penetrating part and is spaced from the rim of the first penetrating part. The first projection is positioned in the first penetrating part and spaced from the second metallic material by a gap. The gap has a size of a predetermined percentage of the thickness of the first projection to which arc welding is applied. The first and second metallic materials are melted and joined together inside the first penetrating part to compress and fix the different material, so all three are fixed together.

The present invention provides dissimilar material solid phase bonding with which a robust bonded portion of metal materials having different compositions can be formed efficiently. The present invention also provides a dissimilar material solid phase bonded structure having a dissimilar material solid phase bonded portion in which metal materials having different compositions have been bonded together robustly. In the dissimilar material solid phase bonding method according to the present invention, one member is brought into contact with another member to form an interface to be bonded, and newly formed surfaces of the one member and the other member are formed at the interface to be bonded, by means of the application of a bonding load, characterized in that: the one member and the other member have different compositions; the temperature at which the one member and the other member have substantially the same strength is defined as a bonding temperature; and the bonding load at which strength is applied substantially perpendicular to the interface to be bonded is set.

Intended is to improve the corrosion resistance of an overlay used in a nuclear power plant, and to reduce dissolution of cobalt from an overlay. The corrosion and wear resistant overlay 7 is formed along a surface of a base 2 by laser lamination modeling, and is configured from a plurality of metal layers 1a, 1b, 1c, and 1d of a Co-base alloy. The thickness of carbide eutectics that precipitate in the metal layers 1a, 1b, 1c, and 1d is the largest in the metal layer 1a closest to the base 2, and is gradually smaller in the metal layers 1b, 1c, and 1d farther away from the base 2. The intensity of the laser beam applied to form layers by laser lamination modeling is adjusted so that the carbide eutectics that precipitate in at least the outermost metal layer 1d have a controlled size of 10 m or less.