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  2. Lankford coefficient - Wikipedia

    en.wikipedia.org/wiki/Lankford_coefficient

    The Lankford coefficient (also called Lankford value, R-value, or plastic strain ratio) [1] is a measure of the plastic anisotropy of a rolled sheet metal. This scalar quantity is used extensively as an indicator of the formability of recrystallized low-carbon steel sheets.

  3. Shear forming - Wikipedia

    en.wikipedia.org/wiki/Shear_forming

    Fig. 1. A shear formed product: a hollow cone with a thin wall thickness. Shear forming, also referred as shear spinning, is similar to metal spinning. In shear spinning the area of the final piece is approximately equal to that of the flat sheet metal blank. The wall thickness is maintained by controlling the gap between the roller and the ...

  4. Rolling (metalworking) - Wikipedia

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

    For thin sheet metal with a thickness less than 200 μm (0.0079 in), [citation needed] the rolling is done in a cluster mill because the small thickness requires a small diameter rolls. [10] To reduce the need for small rolls pack rolling is used, which rolls multiple sheets together to increase the effective starting thickness.

  5. Roll forming - Wikipedia

    en.wikipedia.org/wiki/Roll_forming

    Roll forming is, among the manufacturing processes, one of the simplest. It typically begins with a large coil of sheet metal, between 1 inch (2.5 cm) and 20 inches (51 cm) in width, and 0.004 inches (0.10 mm) and 0.125 inches (3.2 mm) thick, supported on an uncoiler.

  6. Developable surface - Wikipedia

    en.wikipedia.org/wiki/Developable_surface

    The oloid and the sphericon are members of a special family of solids that develop their entire surface when rolling down a flat plane. Planes (trivially); which may be viewed as a cylinder whose cross-section is a line; Tangent developable surfaces; which are constructed by extending the tangent lines of a spatial curve.

  7. Plate rolling machine - Wikipedia

    en.wikipedia.org/wiki/Plate_rolling_machine

    When rolling, the top roll presses the metal plate between the two side rolls. The advantage of having the variable three roll is the ability to roll many thicknesses and diameters of cylinders. For example; The side-rolls are what produce the mechanical advantage. With the side rolls all the way open, one has the maximum mechanical advantage ...

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  9. Rolling cone motion - Wikipedia

    en.wikipedia.org/wiki/Rolling_cone_motion

    Rolling cone motion is the rolling motion generated by a cone rolling over another cone. In rolling cone motion, at least one of the cones is convex , while the other cone may be either convex, or concave, or a flat surface (a flat surface can be regarded as a special case of a cone whose apex angle equals π {\displaystyle \pi } ).

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