The process of injecting molten metal under high pressure (1,450-30,500psi) into a steel mold, allowing it to solidify into shape within the mold, and then removing it to create a finished product, part, or housing. This produces a more uniform part, usually with a good surface finish and good dimensional accuracy. Minting is often used to create one or more copies of an original work.

Advantages of Die Casting
Die casting is an efficient, economical process that offers a wider range of shapes and components than any other manufacturing technique. Parts are long-lasting and can be designed to complement the visual appeal of surrounding parts. Designers can gain many advantages and benefits by specifying die castings.
High Speed Production - Die casting can deliver complex shapes within tighter tolerances than many other mass production processes. Little or no machining is required, and thousands of identical castings can be produced before additional tooling is required.
Dimensional Accuracy and Stability - Die casting produces parts that are durable and dimensionally stable while maintaining tight tolerances. They are also heat resistant.
Strength and Weight - Die cast parts are stronger than plastic injection molded parts of the same size. Thin-walled castings are stronger and lighter than other casting methods. Also, because die castings do not consist of separate parts that are welded or fastened together, the strength comes from the alloy rather than the joining process.
Multiple finishing techniques - Die castings can be produced with smooth or textured surfaces and can be easily plated or finished with minimal surface preparation.
Simplified Assembly - Die castings provide complete fastening elements such as bosses and studs. Holes can be cored and made to tap drill size, or external threads can be cast.

Die casting process
The basic die casting process involves injecting molten metal under high pressure into a steel mold called a mold. Die casting machines are usually rated for clamping tons equal to the amount of pressure they can exert on the mold. Machine sizes range from 400 tons to 4000 tons. Regardless of size, the only fundamental difference in die casting machines is the method by which molten metal is injected into the mold. The two methods are hot chamber or cold chamber. A complete die casting cycle can vary from less than one second for small parts weighing less than an ounce to two to three minutes for castings weighing several pounds, making die casting the fastest technology for producing precision non-ferrous parts.