Sand casting

From DDL Wiki

1. Definition

What & How:
Casting is a manufacturing process used to produce objects by pouring molten material in to a cavity called a mold which is the negative of the object, and allowing it to cool and solidify. Sand casting is the specific casting process in which the mold is usualy made from sand formed around the object to be copied.

Top and bottom halves of a sand mold.

Two sets of castings (bronze and aluminum) from the above sand mold.