A method for producing a feedstock wire is produced from a first metal strip and at least one further metal strip by roll forming, wherein in particular the first metal strip and the at least one further metal strip are made of differing metals, preferably of differing meals having differing yield points, wherein a jacket, which in the final shape completely surrounds the at least one further metal strip in the circumferential direction, is formed from the first metal strip in a plurality of passes by roll forming using a plurality of roll stands, and wherein, first, exclusively only the first metal strip is formed to a preliminary shape in a plurality of passes using a first group of roll stands and, thereafter, the first metal strip and the at least one further metal strip are jointly formed to the final shape in a second group of roll stands.

A method for producing a brazing wire consists of unwinding a solid metal or metal alloy wire, of circular or substantially circular cross-section and subjecting the wire to a stamping operation between rotating rollers, the periphery of which respectively having a die for receiving the full wire and a punch capable of deforming the wire and of generating a U-shaped cross-section across substantially the entire original diameter of the wire. The method also consists of filling the volume defined by the U using brazing flux or pickling flux in a powder or paste form and closing the arms of the U, after filling of the volume with the flux, one on top of the other with the end of one of the arms of the U overlapping the other. The method also consists of calibrating and shaping the resulting wire, according to the desired diameter and cross-section.

The present disclosure relates to a method for producing a rod-shaped element. In order to provide a method with which it is possible to produce a rod-shaped element which overcomes at least one of the disadvantages of the rod-shaped elements known from the state of the art, it is proposed according to the invention that the method has the steps of providing a tube made of a metal, wherein the tube has a longitudinal direction, providing at least one strand with a plurality of threads, wherein at least one of the threads has carbon fibres, introducing the at least one strand into the tube, with the result that the at least one strand extends in the longitudinal direction in the tube, and cold forming the tube, together with the at least one strand, using a forming tool, with the result that an outside diameter of the tube before the cold forming is larger than the outside diameter of the tube after the cold forming.

A platinum-based material element wire is coated with gold or gold alloy, and drawing-processed with a carbon-containing die. The thin wire manufactured in this manner is covered with gold or gold alloy, and the coverage of gold or gold alloy is 40% or more on an area basis. The thin wire formed of a platinum-based material is manufactured in a state of suppressing breakage in a drawing processing step, and has favorable performance in electric properties and the like. In addition, this manufacturing process is capable of efficiently manufacturing a platinum-based material thin wire while suppressing breakage when the thin wire is manufactured by drawing processing.

Certain exemplary embodiments can provide a manufacturing method, process, machine, and/or system for continuously consolidating granular materials, creating new alloys and/or composites, and/or modifying and/or refining material microstructure, by using plastic deformation of feedstock(s) provided in various structural forms. Materials produced during this process can be fabricated directly and/or in forms such as, e.g., wires, rods, tubes, sheets, plate and/or channels, etc.

Disclosed are a micro fiber and a method of manufacturing the micro fiber are proposed. The micro fiber may be manufactured by controlling thickness and Young's modulus thereof using hollow fiber.

Certain exemplary embodiments can provide a manufacturing method, process, machine, and/or system for continuously consolidating granular materials, creating new alloys and/or composites, and/or modifying and/or refining material microstructure, by using plastic deformation of feedstock(s) provided in various structural forms. Materials produced during this process can be fabricated directly and/or in forms such as, e.g., wires, rods, tubes, sheets, plate and/or channels, etc.

Embodiments of the present invention provide a hollow cylindrical filter for removing efficiently foreign substances from fluids. This is performed by forming complicated passages including an axial direction and a radial direction in the filter. The hollow cylindrical filter is formed by winding a metal wire rod in a spiral and multilayered manner. The metal wire rod includes a recess formed throughout the entire length in a longitudinal direction, or recesses repeated along said longitudinal direction. Some wire rod layers extend in an axial direction of the hollow cylindrical filter while the adjacent wire rod layers extend in an intersecting direction, thereby forming a plurality of communication paths for communicating between the overlapping wire rod layers. Additionally, a space is formed between the recess of one wire rod layer and another adjacent wire rod layer, allowing the plurality of communication paths to communicate with each other.

The invention relates to a method for producing a roof rack, to an extruded profile for use in a method of this nature and to a novel roof rack for a vehicle. The novel roof rack for vehicles consists of an extruded profile (1) of aluminum, wherein the rail (13) is formed by a tubular profile part of the extruded profile (1), and the end feet (11, 12) are formed from a bend section of the tubular profile part. The roof rack has different cross-sections in the longitudinal direction, which are created by machining of at least one additional profile web on the extruded profile (1). Freely selectable lateral contours (20, 20′) for a roof rack can be achieved in this way.

A steel wire which has an excellent fatigue limit when made into a spring is provided. A chemical composition of the steel wire according to the present embodiment consists of, in mass %, C: 0.53 to 0.59%, Si: 2.51 to 2.90%, Mn: 0.70 to 0.85%, P: 0.020% or less, S: 0.020% or less, Cr 1.40 to 1.70%, Mo: 0.17 to 0.53%, V: 0.23 to 0.33%, Cu: 0.050% or less, Ni: 0.050% or less, Al: 0.0050% or less, Ti: 0.050% or less, N: 0.0070% or less, Ca: 0 to 0.0050%, and Nb: 0 to 0.020%, with the balance being Fe and impurities. In the steel wire, a number density of V-based precipitates having a maximum diameter ranging from 2 to 10 nm is 500 to 8000 pieces/μm.sup.2.