Wrought is metal in the form of sheet, strip, or bar stock that is "hand-worked", or "hand-wrought," typically on an anvil. Using the skills of a blacksmith, the metal is heated in a forge and hammered to shape. A metalsmith can either forge the metal by hand over an anvil or by using a modern power hammer.
Cast is metalwork produced in a foundry. At the foundry, metal ingots are melted in furnaces and the molten metal is poured into molds. Cast metalwork requires the use of a "pattern" which is usually carved by hand or machine.