Investment Casting 101 The process of investment casting requires a mould or die that is made from a master pattern. While the process does have its disadvantages, it is particularly useful for casting complex parts that require very precise dimensions. The benefits of investment casting include a smoother finish, less surface finishing, and a shorter production timeline. There are two main types of investment casting: traditional and CNC. Here's an overview of the differences between the two. Which one is right for your part? Aluminum, iron alloys, and copper are some of the metals commonly used in investment casting. Among these metals, aluminum is the most common and can be found in almost any industrial application. Its properties make it lightweight, conductive, durable, and reflective, making aluminum a great choice for casting parts. Its properties also make it a great choice for construction and packaging applications. However, it also has a large number of applications i...