Have you ever looked at a piece of your jewelry and
wondered just how the jeweler made it? How do they create the fine
detail in a piece of jewelry and what about the smooth swirling shapes.
The fact of the matter, is that every piece of fine jewelry starts out
being made from wax. Its called the "lost wax" casting method and it is
amazing to see from start top finish.
The first step is to create
the piece out of sculpting wax, which is the same wax that dentists use
to make crowns for peoples teeth with, because dentists use the lost
wax method for casting gold crowns. Then the wax piece is then encased
in a can that is filled with wet plaster and allowed to cure and dry.
After the can of plaster with the wax piece in has dried it is then
placed in a hot kiln so the wax "piece" in it can melt and burnout of
it.
What is then removed from the kiln is a hunk of plaster with
the hollow shape of the wax piece left in the middle of it. The jeweler
will then place the hunk of plaster in a device that spins around and
uses centrifugal force to push molten metal down into the hollow shape
inside of the hunk of plaster. It will then be allowed to cool and then
the plaster will be chipped away revealing the piece of jewelry where
the wax piece once was.
It will be cleaned up and then any
details will be carved into it or welded onto it using a jewelers
delicate tools and a jewelers torch. If any stones or gems are to be
added to it, that will be the last step that is taken. It is then given
a final polish and it is done. This method of making jewelry has not
changed in thousands of years.