Centrifugal Casting and Semi-Centrifugal Casting are produced by pouring molten metal into a mold that is being rotated or revolved. Both methods can be described as castings that are spun on their own axis during the casting operation.
 

Centrifugal Casting
 
 



  • The molds may be made of cast iron or steel, copper, graphite, ceramic or dry sand.
  • Molten metal is poured into the spinning mold cavity.
  • The axis of ration may be horizontal or inclined at any angle up to the vertical position.
  • Molten metal is held against the wall the mold by centrifugal force.
  • Molten metal is held against the wall the mold by centrifugal force.
  • The speed of rotation and metal pouring rate vary with the alloy, size and shape being cast.
  • Metal molds provide rapid chilling, resulting a sound casting.
  • Castings are removed from the molds for secondary process and final finishing.

Metals
  • Most metals can be cast successfully.
Special characteristics of Centrifugal Casting
  • High production rates.
  • Low pattern cost.
  • High integrity castings.
  • Mechanical properties are nearly equal in all directions.
  • The yield or ratio of casting weight to weight of metal poured is high.
  • Suitable for castings that generally cylindrical and symmetric about the axis.
  • Long or short runs can be accommodated
  • Almost any alloy can be cast.