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2013-05-12 20:22:14
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Trefilagem, ou Trefilação, é o processo de fabricação de arame e barras finas de metal. É um processo industrial que acarreta na redução da seção transversal (largura) e respectivo aumento no comprimento do material. Consiste na Tração da peça através de uma matriz chamada fieira ou trefila, com forma de canal convergente. O processo de trefilação consiste em puxar o metal através de uma matriz, por meio de uma força de tração a ele aplicada na saída da matriz. More information...

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  • Forging is the shaping of metal using localized compressive forces. Forging is often classified according to the temperature at which it is performed: '"cold," "warm," or "hot" forging. Forged parts can range in weight from less than a kilogram to 170 metric tons. Forged parts usually require further processing to achieve a finished part.
    http://commons.wikipedia.org/wiki/File:ForgedConrodShowingEtchedSection-s.jpg
  • Coining is a form of precision stamping in which a workpiece is subjected to a sufficiently high stress to induce plastic flow on the surface of the material. A beneficial feature is that in some metals, the plastic flow reduces surface grains size, work hardening the surface, while the material deeper in the part retains its toughness and ductility. The term comes from the initial use of the process: manufacturing of coins.
    http://commons.wikipedia.org/wiki/File:Coining_press%28Royal_Mint%29.jpg
  • A machine press, commonly shortened to press, is a machine tool that changes the shape of a workpiece.
    http://commons.wikipedia.org/wiki/File:GoldsmithPress.jpg
  • A die is a specialized tool used in manufacturing industries to cut or shape material using a press. Like molds and stencils, dies are generally customized to the item they are used to create. Products made with dies range from simple paper clips to complex pieces used in advanced technology.
    http://commons.wikipedia.org/wiki/File:Power_press_animation.gif
  • Extrusion is a process used to create objects of a fixed cross-sectional profile. A material is pushed or drawn through a die of the desired cross-section. The two main advantages of this process over other manufacturing processes are its ability to create very complex cross-sections and work materials that are brittle, because the material only encounters compressive and shear stresses. It also forms finished parts with an excellent surface finish.
    http://commons.wikipedia.org/wiki/File:Extrusion_force_plot.png
  • Knurling is a manufacturing process, typically conducted on a lathe, whereby a visually-attractive diamond-shaped (criss-cross) pattern is cut or rolled into metal. This pattern allows hands or fingers to get a better grip on the knurled object than would be provided by the originally-smooth metal surface. Occasionally, the knurled pattern is a series of straight ridges or a helix of "straight" ridges rather than the more-usual criss-cross pattern.
    http://commons.wikipedia.org/wiki/File:KnurlingTool.jpg
  • Electromagnetic forming (EM forming or magneforming) is a type of high velocity, cold process for electrically conductive metals, most commonly copper and aluminium. The workpiece is reshaped by high intensity pulsed magnetic fields that induce a current in the workpiece and a corresponding repulsive magnetic field, rapidly repelling portions of the workpiece.
    http://en.wikipedia.org/wiki/File:Aluminium-can-pinched.jpg

 

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  • In histology, adipose tissue or body fat or just fat is loose connective tissue composed of adipocytes. It is technically composed of roughly only 80% fat; fat in its solitary state exists in the liver and muscles. Adipose tissue is derived from lipoblasts. Its main role is to store energy in the form of fat, although it also cushions and insulates the body.
    http://commons.wikipedia.org/wiki/File:Excess_human_adipose_tissue.jpg
  • Langeveen is a town in the Dutch province of Overijssel. It is a part of the municipality of Tubbergen, and lies about 13 km north of Almelo. In 2001, the town of Langeveen had 573 inhabitants. The built-up area of the town was 0.16 km², and contained 179 residences. The statistical area "Langeveen", which also can include the peripheral parts of the village, as well as the surrounding countryside, has a population of around 1300.
    http://commons.wikipedia.org/wiki/File:Map_NL_-_Tubbergen_-_Langeveen.png

 
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