1. Sand casting process
This process of sand casting is a more traditional process, which is a casting method for producing castings in sand.
Generally steel, iron and most non-ferrous alloys are more suitable for casting with this technology. In particular, some tools with complex shapes, especially with complex cavities, are manufactured by sand casting. It has the advantages of wide adaptability and low cost.
2. Investment casting in metal sand casting
The process of investment casting is a relatively new type of metal casting process. The advantage of this process casting product is that the dimensional accuracy is relatively high, and the disadvantage is that the surface is rough. But alloys can be cast without restriction, that is, the cost is relatively high, and it is mainly used for processing small parts, such as turbine engine blades.