Metal stampings, forgings, and castings are all types of manufacturing processes that use a metal to create a physical object. In metal stamping, for example, a die is used to create an intricate pattern on the surface of a piece of metal. The pattern is then cut out using either manual or automated tools and the resulting hole in the metal can be used to attach other parts of the object. Forgings are similar to stamped pieces but they are created by melting two pieces of different metals together until they form one solid piece. Castings involve pouring molten steel into molds designed specifically for that purpose and then allowing it to cool and solidify.