A tool is built to customer-provided specifications (A). Cold wax is then injected into the tool to create a wax pattern/prototype (B). That will hold precise dimensional requirements in final casting.
The wax patterns are assembled onto the sprue.
Successive layers of ceramic (A) and are applied to the sprue assembly to form a hard shell.
The molds are flash-fired to remove the wax and sprue materials and then heated to 1,800º and placed on a send bed, ready for pouring.
Molten metal, up to 3,000º, is poured into the hollow mold and then cooled.
The ceramic shell is broken off, and the individual castings are cut away.
Excess metal is removed, surfaces are finished, and castings are heat treated.
Casting undergo thorough testing and inspection to ensure that they meet dimensional tolerances and specifications.
Castings are securely packaged for shipping to the customer.