In one embodiment, a method for fabricating a metal microstructure includes forming a non-conductive polymer membrane having a plurality of pores, coating at least one end of the membrane and inner surfaces of the pores with a conductive material to form a conductive coating, electrodepositing a metal on the conductive coating, and dissolving the membrane to obtain a free-standing metal microstructure having at least one metal end plate and multiple elongated metal members extending therefrom.

In one embodiment, a method for fabricating a metal microstructure includes forming a non-conductive polymer membrane having a plurality of pores, coating at least one end of the membrane and inner surfaces of the pores with a conductive material to form a conductive coating, electrodepositing a metal on the conductive coating, and dissolving the membrane to obtain a free-standing metal microstructure having at least one metal end plate and multiple elongated metal members extending therefrom.

A lost wax cast vapor chamber device is provided. Once a mesh is produced, a meltable core is formed from a meltable core material with the mesh positioned at least partially inside the core. Over the meltable core a metallic layer is formed, at least partially surrounding the meltable core. A chamber formed by the metallic layer is exposed by melting the meltable core to cause it to be removed from an internal void of the chamber, the internal void encapsulating the mesh. The melted material from the meltable core flows out an opening on at least one surface of the chamber. Subsequently, the internal void is filled at least partially with a working fluid and the opening is closed. The mesh supports the surfaces of the chamber against deformation under the vacuum of the internal void. Movement of working fluid by capillary action is facilitated by the mesh.

Methods, structures, devices and systems are disclosed for fabrication of microtube engines using membrane template electrodeposition. Such nanomotors operate based on bubble-induced propulsion in biological fluids and salt-rich environments. In one aspect, fabricating microengines includes depositing a polymer layer on a membrane template, depositing a conductive metal layer on the polymer layer, and dissolving the membrane template to release the multilayer microtubes.

Methods, structures, devices and systems are disclosed for fabrication of microtube engines using membrane template electrodeposition. Such nanomotors operate based on bubble-induced propulsion in biological fluids and salt-rich environments. In one aspect, fabricating microengines includes depositing a polymer layer on a membrane template, depositing a conductive metal layer on the polymer layer, and dissolving the membrane template to release the multilayer microtubes.

A fan slider for use in a fan assembly to push a fan blade radially outward of a rotating axis of the gas turbine engine. The fan slider may include a fan slider body coated with a nanocrystalline metallic coating and a slider spring.

A fan slider for use in a fan assembly to push a fan blade radially outward of a rotating axis of the gas turbine engine. The fan slider may include a fan slider body coated with a nanocrystalline metallic coating and a slider spring.

A manufacturing process for making aircraft engine parts utilizes reusable reconfigurable smart memory polymer mandrel tooling, low temperature metal deposition, and composite part lay-up with resin coated conformable braided carbon fiber sleeves, to fabricate both metal internal engine parts and non-metal external parts for turbine engines.

A manufacturing process for making aircraft engine parts utilizes reusable reconfigurable smart memory polymer mandrel tooling, low temperature metal deposition, and composite part lay-up with resin coated conformable braided carbon fiber sleeves, to fabricate both metal internal engine parts and non-metal external parts for turbine engines.

Disclosed herein is a method of electroforming a needle cannula (100) for an injection device, wherein the electroforming method is performed in an electroforming system (1) comprising a cathode (10), an anode (60) and an electrolyte (50) with dissolved metal ions, wherein the method comprises providing a permanent mandrel (10), wherein the mandrel is configured to constitute the cathode. The mandrel (10) comprises a forming portion (20) having a forming surface (21, 22, 23, 24, 25, 26) adapted to form an inner surface of the needle cannula (100), wherein the forming portion (20) comprises a cylindrical axis (A), a longitudinal extension, a first proximal end (16) and a second distal end (17). The method further comprises electrodepositing a metal or metal alloy on the forming surface (21, 22, 23, 24, 25, 26) of the mandrel, where the electrodeposited metal or metal alloy is corresponding to the metal ions dissolved in the electrolyte (50), and whereby the electrodeposited metal or metal alloy is forming a needle cannula (100) on the mandrel (10), and separating the mandrel (10) from the formed needle cannula (100) by moving the mandrel (10) and the electroformed needle cannula relative to each other. Further disclosed is a method of producing different cannula features as composite structures (301, 302, 303, 304, 305) and interlock structures (105, 106, 107, 152, 153).