Ceramic mold casting, also known ambiguously as ceramic molding, is a group of metal casting processes that use ceramics as the mold material. It is a combination of plaster mold casting and investment casting. There are two types of ceramic mold casting: the Shaw process and the Unicast process.
These casting processes are commonly used to make tooling, especially drop forging dies, but also injection molding dies, die casting dies, glass molds, stamping dies, and extrusion dies.
... The main advantages of ceramic molds are a reusable pattern (the item used to create the shape of the mold), excellent surface finish, close dimensional tolerances, thin cross-sections, and ... with a standard pattern essentially using investment and ceramic mold casting techniques together ... are it is only cost effective for small- to medium-sized production runs and the ceramic is not reusable ...
Famous quotes containing the words casting, ceramic and/or mold:
“For the gods, though slow to see, see well, whenever a man casting aside worship turns folly.”
—Sophocles (497406/5 B.C.)
“He had first discovered a propensity for savagery in the acrid lavatories of a minor English public school where he used to press the heads of the new boys into the ceramic bowl and pull the flush upon them to drown their gurgling protests.”
—Angela Carter (19401992)
“New York was a new and strange world. Vast, impersonal, merciless.... Always before I had felt like a person, an individual, hopeful that I could mold my life according to some desire of my own. But here in New York I was ignorant, insignificant, unimportantone in millions whose destiny concerned no one. New York did not even know of my existence. Nor did it care.”
—Agnes Smedley (18901950)