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Materials Science and Manufacturing Engineering Miscellaneous

Materials Science and Manufacturing Engineering

Direction: A cup is to be drawn to a diameter of 70 mm with 35 mm depth from a 0.5 mm thick sheet metal. The cup is drawn in one operation. Assume σu = 430 MPa.

  1. The required blank diameter is
    1. 86.7 mm
    2. 119.5 mm
    3. 121.24 mm
    4. 169 mm
Correct Option: C

d² + 4dh
= √70² + (4 × 70 × 35)
D = 121.24 mm



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