Smooth production castings are close to the shape of the final product, that is, “near-net shape” components. Castings are produced by pouring molten metal into molds, the cores used to create hollow internal parts. After the metal has cooled sufficiently, the casting is separated from the mold and undergoes cleaning and techniques as appropriate ending. Some documents are in the public domain to provide a detailed description of foundry processes (Defra 2003a, b; European Commission 2004; Chartered Institute of Environmental Health 1997). A brief description of the foundry processes below those that could have on the industry. In the production process involves several steps as shown below. Technical terms are explained in the following text and the Glossary Foundry (at the end of the guide).
Patterns provide the outside (mold) or inside (central) shape of the finished casting and produced in wood, metal or resin for use inand core making. Patterns are usually made in two halves.