Metal Casting and Sand
Casting of Benin
By Denny Choi
The Lost Wax Method
Renowned method dating back
thousands of years to the artists of
Ancient Egypt and Mesopotamia.
Calls for consideration and
considerable skill in the execution of
The process Aztec goldsmiths
Process of Lost Wax method
Begin with a core of clay kneaded into a mass.
The core is shaped into the apparent size and shape of the desired
object. Than the cores are dried.
Covers the core with beeswax and molds it into the exact shape. Than
covered with a thick coating of clay.
Thin layer of wax covers this product.
Again thick layer of clay is added.
The mold is allowed to air dry thoroughly.
The wax is than melted and poured out.
The result is put in the earth upright and molten brass is poured in.
This Lost Wax Method allows for the
thinness of sculptures
A man pouring
molten brass into
a ready mold.
Each year millions castings are produced.
Out of these approximately 97% are sand castings.
The process of sand casting
T= solidification time
C=constant which is different for different
types of metal.
V = Local Volume
A= Surface area
Sand Molded Casting, http://en.wikipedia.org/wiki/Sand_casting
Sprue (Casting), http://en.wikipedia.org/wiki/Sprue_%28casting%29
Riser (Casting), http://en.wikipedia.org/wiki/Riser_%28casting%29
The complete Hand book of Sand Casting,
The Sand Casting Process,
Head of an Oba
Benin Art Overview, http://www.tropicalmarkets.com/benin_art_overview.html