For the steel ring of preceding Problem 11.10, deter-mine the volume of molten metal that must be poured into the mold, given that the liquid shrinkage is 0.5%, and the solidification shrinkage and solid contraction.
Problem 11.10
A horizontal true centrifugal casting process is used to make aluminum rings with the following dimensions: length = 5 cm, outside diameter 65 cm, and inside diameter = 60 cm.
(a) Determine the rotational speed that will provide a G-factor = 60.
(b) Suppose that the ring were made out of steel instead of aluminum. If the rotational speed computed in part (a) were used in the steel casting operation, determine the G-factor and
(c) centrifugal force per square meter (Pa) on the mold wall.
(d) Would this rotational speed result in a successful operation?