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  2. Ring size - Wikipedia

    en.wikipedia.org/wiki/Ring_size

    Ring sizes can be measured physically by a paper, plastic, or metal ring sizer (as a gauge) or by measuring the inner diameter of a ring that already fits. Ring sticks are tools used to measure the inner size of a ring, and are typically made from plastic, delrin, wood, aluminium, or of multiple materials. Digital ring sticks can be used for ...

  3. Mandrel - Wikipedia

    en.wikipedia.org/wiki/Mandrel

    Look up mandrel in Wiktionary, the free dictionary. A mandrel, mandril, or arbor is a tapered tool against which material can be forged, pressed, stretched or shaped (e.g., a ring mandrel - also called a triblet [1] - used by jewellers to increase the diameter of a wedding ring), or a flanged or tapered or threaded bar that grips a workpiece to ...

  4. Metal spinning - Wikipedia

    en.wikipedia.org/wiki/Metal_spinning

    The foreground shows the mandrel for the base. Behind the finished vase are the spinning tools used to shape the metal. Metal spinning, also known as spin forming or spinning or metal turning most commonly, is a metalworking process by which a disc or tube of metal is rotated at high speed and formed into an axially symmetric part. [1]

  5. Electroforming - Wikipedia

    en.wikipedia.org/wiki/Electroforming

    Electroforming is a metal forming process in which parts are fabricated through electrodeposition on a model, known in the industry as a mandrel. Conductive (metallic) mandrels are treated to create a mechanical parting layer, or are chemically passivated to limit electroform adhesion to the mandrel and thereby allow its subsequent separation ...

  6. Broaching (metalworking) - Wikipedia

    en.wikipedia.org/wiki/Broaching_(metalworking)

    Broaching is a machining process that uses a toothed tool, called a broach, to remove material. There are two main types of broaching: linear and rotary. In linear broaching, which is the more common process, the broach is run linearly against a surface of the workpiece to produce the cut. Linear broaches are used in a broaching machine, which ...

  7. Ring bit - Wikipedia

    en.wikipedia.org/wiki/Ring_bit

    A ring bit is a horse bit that includes a ring passed through the horse 's mouth and encircling the lower jaw. There are three primary designs. The most common ring bit design today, sometimes called a Dexter ring bit, is used in conjunction with a snaffle bit, while a historic ring bit design was also used on some spade bits in certain vaquero ...

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