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Materials Science and Manufacturing Engineering Miscellaneous

Materials Science and Manufacturing Engineering

  1. The dimensions of a cylindrical side riser (height = diameter) for a 25 cm × 15 cm × 5 cm steel casting are to be determined. For the tabulated shape factor values given below, diameter of the riser (in cm) is_______.
    Shape Factor    2    4    6    8    10   12
    Riser volume/    1.0    0.70    0.55    0.50    0.40    0.35
    Casting volume
    1. 11.60 cm
    2. 10.66cm
    3. 10.60cm
    4. None of the above
Correct Option: C

Z =
L + W
Thickness

=
25 + 15
= 8
5

Riservolume
= 0.5
Casting volume

=
(π/4)d2h
= 0.5
25 × 15 × 15

but d = h
πd3
= 0.5 × 25 × 15 × 15
4

d = 10.60cm



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