A method of manufacturing a multi-material tubular structure includes spinning a can, depositing a powdered material into the can and compacting the powdered material within the can to provide a tubular structure.

A friction stir processing (FSP) tool includes a working material. The working material has a matrix phase and a particulate phase. The matrix phase includes tungsten and an alloy material. The particulate phase is located within the matrix phase, and the particulate phase has an indentation hardness less than 45 GPa.

A friction stir processing (FSP) tool includes a working material. The working material has a matrix phase and a particulate phase. The matrix phase includes tungsten and an alloy material. The particulate phase is located within the matrix phase, and the particulate phase has an indentation hardness less than 45 GPa.

Certain aspects of the technology disclosed herein include an apparatus and method for programming a crystal lattice structure of a nanoparticle. A particle programming apparatus can include an input channel connected a particle sampling system. The particle sampling system can direct freshly milled nanoparticles to the particle programming apparatus if the nanoparticles are determined to be below a threshold size. The particle programming apparatus can include one or more programming devices configured to alter a crystal lattice of the received nanoparticles including an ultrasonic sound generator, a magnetic pulse generator, and a voltage generator. The one or more programming devices applies any of a sound, magnetic pulse, and voltage to the received nanoparticles within a time threshold of receiving the nanoparticles from the mill core.

Solid-state additive manufactured aluminum alloy products and methods of producing them are described. At least 60% percent by volume of the aluminum in the additive manufactured aluminum alloy product is present as equiaxed grains with aspect ratios less than 2:1 after heat treatment of the additive manufactured aluminum alloy product. There is minimal void space between metal atoms of the additive manufactured aluminum alloy product. Various parts including 7075-type aluminum alloy products are described.

A shaped charge liner including a composition of powders. The composition may include one or more of an aluminum metal powder and a titanium metal powder, a bronze metal powder, a tungsten metal powder and a graphite powder. Each powder of the composition may include grain size ranges that are different from one or more other powder grain size ranges. The bronze metal powder may include two or more different grain size ranges, and in some instances three or four different grain size ranges. A method of making the shaped charge liner and shaped charge with such liner having the composition of powders is also disclosed, as is a shaped charge including such shaped charge liner.

A shaped charge liner including a composition of powders. The composition may include one or more of an aluminum metal powder and a titanium metal powder, a bronze metal powder, a tungsten metal powder and a graphite powder. Each powder of the composition may include grain size ranges that are different from one or more other powder grain size ranges. The bronze metal powder may include two or more different grain size ranges, and in some instances three or four different grain size ranges. A method of making the shaped charge liner and shaped charge with such liner having the composition of powders is also disclosed, as is a shaped charge including such shaped charge liner.

A metal injection molding apparatus includes a metal injection mold die having first and second die halves, a first set of features provided in the first die half, a second set of features provided in the second die half and complementary to the first set of features provided in the first are half and an ultrasonic transducer disposed in contact with the metal injection mold die. A binderless metal injection molding method is also disclosed.

A metal injection molding apparatus includes a metal injection mold die having first and second die halves, a first set of features provided in the first die half, a second set of features provided in the second die half and complementary to the first set of features provided in the first are half and an ultrasonic transducer disposed in contact with the metal injection mold die. A binderless metal injection molding method is also disclosed.

A method for manufacturing a dust core, includes: applying energy to a surface of a soft magnetic powder coated with an insulating body containing a compound having an aluminum-oxygen bond; exposing the soft magnetic powder to an atmosphere having a dew point of ?30? C. or higher and 15? C. or lower under an atmospheric pressure; and forming a molded product by pressing the soft magnetic powder at 20 MPa or more and 400 MPa or less.