Bronze is an excellent alloy for precision parts casting. Its composition typically includes copper, tin, zinc, phosphorus and in some
Investment casting reduces the need for machining parts compared to most other processes because it produces near-net-shape castings. Molds used in this precision parts casting process achieve dimensions that are very close the final specifications of parts. High-quality finishes can be achieved and there is less need to grind off extraneous metal. When comparing production costs using different processes, reduced machining should be taken into account.