The casting process is mainly divided into three types, among which sand casting has low cost and is suitable for the production of parts with large size and low precision requirements. Investment casting requires the production of molds for the production of wax patterns, and the process is relatively complex, which is suitable for the mass production of parts with complex structures. Die casting also requires the development of molds first, which are suitable for the production of high-precision parts.
The first disadvantage of casting compared to CNC machining is the lack of flexibility. You can only use casting to produce metal parts (e.g. aluminum, stainless steel, Inconel, etc.), and each mold can only produce a specific product. The second disadvantage is that the cast parts often need to be finished. However, in mass production, casting is a better choice. Mass production can ignore the upfront mold manufacturing costs.
