core mold casting
21Chill (casting) — A chill is an object used to promote solidification in a specific portion of a metal casting mold. Normally the metal in the mold cools at a certain rate relative to thickness of the casting. When the geometry of the molding cavity prevents… …
22lost-wax casting — A casting process for which a sculptor must first produce his sculpture in wax. He creates a mold around this made of refractory materials. When the mold is heated, the wax melts away, so that molten metal can replace it, reproducing exactly… …
23Lost-wax casting — A model of an apple in wax …
24Lost-foam casting — (LFC) is a type of investment casting process that uses foam patterns as the investment. This method takes advantage of the properties of foam to simply and cheaply form castings that would be difficult or impossible, using normal cope and drag… …
25investment casting — Metall. a casting process in which an expendable pattern is surrounded by an investment compound and then baked so that the investment is hardened to form a mold and the pattern material may be melted and run off. Also called precision casting.… …
26lost-wax casting — Traditional method of producing molds for metal sculpture and other castings. It requires a positive, a core made of refractory material and an outer layer of wax. The positive can be produced either by direct modeling in wax over a prepared core …
27Pattern (casting) — In the process of casting, a pattern is a replica of the object to be cast, used to prepare the cavity into which molten material will be poured during the casting process.Patterns used in sand casting may be made of wood, metal, plastics or… …
28water core — noun 1. : a hollow core through which water circulates in a founding mold and which is used (as in casting a cannon) for cooling the interior of a casting more rapidly than the outside while the metal is solidifying 2. a. : a physiological… …
29indirect casting — Lost wax metal casting in which the model that is lost is not the original model, but a wax cast from a piece mold taken from the original model. This second wax model is sometimes called an indirect casting, or an intermodel. If the indirect… …
30direct casting — In lost wax casting, a technique in which the original model is lost melted out of the mold. If the work is hollow, the wall of metal is generally heavy the wax model having been modeled thickly over a core of very simple shape. Also see… …
