Meaning of inversion casting

inver'sion cast"ing

Pronunciation: [key]
— Metall. Metall.
  1. casting from an electric furnace inverted over the mold.
  2. a process of casting, used esp. for small statuary or the like, in which the mold is inverted after the outer surfaces have hardened so as to drain off the molten metal at the center.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.