A method of forming a hybrid metal composite structure including at least one metal ply. The method includes forming at least one metal ply, forming the at least one metal ply comprising forming at least one perforation in the at least one metal ply, abrasively blasting at least one surface of the at least one metal ply to coarsen the at least one surface of the metal ply, and exposing the at least one metal ply to at least one of an acid or a base. The method further includes disposing at least one fiber composite material structure adjacent the at least one metal ply. Related methods of forming a portion of a rocket case and related hybrid metal composite structures are also disclosed.

Provided is a metal-resin joined body having a high joint strength and sufficient airtightness and a metal member for obtaining the same. The metal member includes a metal base material made of a metal and a marking pattern having an uneven part formed on a surface of the metal base material, in which the marking pattern is one continuous straight line or curved line, a plurality of the marking patterns is formed to be adjacent to each other and run parallel, and, in a direction orthogonal to a running direction of the plurality of marking patterns, a maximum height roughness Rz of unevenness of the uneven parts and an average interval Rsm of the unevenness by the uneven parts have a relationship of 45?(180/?)?arctan(Rz/(Rsm/2))?75, and a metal-resin joined body includes a resin molded body formed on a surface of this metal member.

Disclosed is a method of placing a magnetic wire such as a magnetic heating wire into a molded vehicle seat, wherein the heating element is kept closely adjacent to the inner surface of the outer seat material of the seat during the molding process through the use of magnets in the mold. In many embodiments, the outer seat material is vinyl and the magnetic wire is an iron/chromium wire.

Methods and apparatus for embedding metallic wires within polymer structures through co-extrusion printing in large-format polymer additive manufacturing (LFPAM). The method includes receiving user input for object and wire regions, performing Boolean operations on the meshes, generating printing paths, and determining an optimized order for printing. The LFPAM tool, configured with a data processing apparatus, prints the object with embedded wire and anchors supporting the wire ends. The system may include the use of a cutting tool to separate the anchors from the printed object. This disclosure improves wire alignment, support, and printing performance, enhancing the properties of wire-embedded printed structures.

The polymeric pipes reinforced with a metal casing are used for transporting oil and gas, acids, alkali products, drinking water and industrial water, and also in the transportation of aggressive and neutral pulps. A metal-containing polymeric reinforced pipe includes a welded metal casing and a polymeric matrix having an amorphous-phase-based molecular structure. The metal-containing polymeric reinforced pipe is produced by extrusion moulding with simultaneous feeding of a polymer melt and the reinforcing metal casing into the mould cavity, followed by intensive cooling of the internal and external surfaces of the pipe being moulded. The invention increases the quality and endurance limit in the radial direction of the metal-containing polymeric reinforced pipe, productivity of the process for manufacturing the pipe, and also the strength and technological effectiveness of a pipeline constructed from the pipes produced.

It is an object of the present invention to securely and integrally join a metal and a resin, more particularly, a shaped titanium alloy substrate and a resin composition. A titanium alloy substrate is used that has undergone surface roughening by chemical etching or the like so as to have a ultrafine textured face in which bent, ridge-like protrusions having a width and height of from ten to a few hundred nanometers and a length of from a few to a few hundred microns rise up on the surface at a spacing period of from ten to a few hundred nanometers. A titanium alloy piece 1 with its surface treated is inserted into the cavity of a metallic mold for injection molding 10 and a specific resin composition 4 is injected to obtain an integrated composite 7. The main resin component of the resin composition 4 that is used can be a polyphenylene sulfide resin (PPS) or a polybutylene terephthalate resin (PBT). High injection joining strength is obtained if the resin composition contains, as an auxiliary component, a polyethylene terephthalate resin and/or polyolefin resin in the case of PBT and a polyolefin resin in the case of PPS.

Systems and methods are provided for forming an engine comprising a thermoset composite engine block. One example method includes reinforcing the engine block with a plurality of metal strips, wherein a first portion of the plurality of metal strips are positioned in a substantially transverse direction of the engine block and a second portion of the plurality of metal strips are positioned in a substantially longitudinal direction of the engine block. The plurality of metal reinforcing strips may provide additional reinforcement to the engine block.

A reusable surgical implement is provided that is formed of a core positioned within an enclosure. The core is formed of a suitable rigid, and optionally flexible material to enable the implant to conform to the desired use for the implement in a surgical procedure. The material forming the enclosure is also stretchable and flexible to accommodate the configuration and/or any flexing of the core, and is biologically inert to enable the implant to be sterilized after use for use in subsequent surgical procedures while protecting the material forming the core. The enclosure can be molded around the core in separate portions or components using multiple molding steps to form an enclosure with the desired attributes.

A method is disclosed for coating a projectile for use in an ammunition cartridge. A polymer jacket is applied to an undersized projectile core of a first standard caliber to bring the outer dimensions of the jacketed projectile into compliance with those of a second, larger caliber projectile. The polymer jacket coating may produce a non-uniform outer diameter of the polymer jacketed projectile and may include a plurality of circular cavities defined therein. The polymer-jacketed projectile may be a bullet for pistol or rifle ammunition, or a pellet, or shot for use in a shotgun shell.

A method for the production of filaments (A) capable of being thermoregulated includes the steps of: feeding a material to be extruded and a pair of wires (B) in electrically conductive material to an extrusion head (1); extruding the material to be extruded and, at the same time, promoting the escape of the pair of wires (B) from the extrusion head (1) in such a way that the material to be extruded winds the pair of wires (B); during the extrusion, generating at least a coupling portion (Y) of the filament (A), wherein the pair of wires (B) is electrically connected.