Metal smelting is the process of extracting metal from its ore by heating and melting. This typically involves using a furnace to reach high temperatures, allowing the metal to separate from impurities. Common metals produced through smelting include iron, copper, and aluminum. The smelting process often requires the addition of a reducing agent, such as carbon, to help remove oxygen from the ore. Once the metal is extracted, it can be cast into molds or further refined for various applications in industries like construction, manufacturing, and electronics.