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Homework Help: Rolling mill separation

  1. Aug 21, 2007 #1
    No idea where to start with this one, any help is much appreciated...

    "A metal plate needs to be reduced to a thickness of 4 cm by involving a rolling mill. After rolling, the elastic properties of the material cause the plate to regain some thickness. Calculate the needed separation between the two rollers when the yield strength of the material after plastic deformation is 60MPa and modulus of elasticity is 124GPa."
  2. jcsd
  3. Aug 21, 2007 #2


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    Calcuate the elastic strain from the yield stength and elastic modulus.

    Then calculate the amount of elastic deformation (recovery) in 4 cm. The separation has to be less than final thickness because the elastic deformation is recovered.
  4. Aug 21, 2007 #3
    Great, thank you.
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