Metal Castings
Metal casting is a metal forming process in which molten metal is put under pressure and injected into a mold in order to form an impression. Several different types of metal can be used in metal castings, such as aluminum, brass, bronze, zinc, magnesium, and lead. As the molten metal cools, it takes the shape of the mold and solidifies into that shape, at which point it is removed from the mold.
Metal castings are very useful and common for several reasons. They can produce complex geometric parts with relative ease, whether very small or very large. Also, the metal casting process is very economical and has little waste, as extra metal in castings can be reheated and reused. Metal castings are used to make many everyday products, including doorknobs, locks, toys, wheels, and the outer casing of motors and pumps.
There are many different types of metal castings. The most common industrial use is in die casting, which involves injecting the molten metal into a die. Die casting is used for more precise parts that require greater accuracy and intricacy, such as precision gears or camera parts. Other types of castings include centrifugal molds, permanent molds, expendable pattern, and investment castings. The particular type of metal casting chosen depends on the requirements of the application.