Originally Posted by superj
i am googling lost wax process. i have no idea what that is
Lost wax is a process where you carve the desired item in wax. Then dip the wax carving in a ceramic solution and let that coating harden on the wax. The ceramic and wax is then fired in a kiln. The wax melts and runs out leaving a perfect mold of the desired part.
The mold is then used to accept the desired molten metal (aluminum, pot-metal, bronze, gold, etc) . After cooling, the ceramic shell is broken and removed from the finished product.