Precision castings are castings formed by pouring molten metal into a certain mold and undergoing cold treatment. There are many casting processes for precision castings, including metal mold casting, pressure casting, investment casting, lost foam casting, and V-method casting, among others. The finished castings made by precision casting technology are relatively precise, and there is no need for further processing in the later stage, or only a small amount of processing is required. At the same time, precision casting can complete the casting of castings with complex shapes and thinner thicknesses. It can not only cast small castings, but also easily complete the casting of large castings. From the current situation, the world's precision casting forming technology is developing rapidly and has a wide range of applications. In the future, the development trend of precision casting technology is that casting products are becoming closer to component products.

Generally, castings are relatively rough compared to precision castings and fall within the scope of forging. Generally, casting involves rapidly filling the molten metal into the solid model of the casting at a high rate under high pressure, causing it to solidify under pressure. However, it still requires later precision processing before it can be put into use. However, due to the multiple materials and external forces involved in casting, castings often undergo deformation during the solidification process. General casting is usually suitable for castings that do not require high geometric dimensional tolerances and performance requirements for equipment machinery.

In fact, precision casting and general casting belong to two different casting methods, with the main differences reflected in dimensional accuracy, surface smoothness, and sales price. The only difference is that precision casting has higher standards and better performance of castings. Therefore, when purchasing castings, consumers can choose according to their own abilities and needs.