Precision casting is a method of manufacturing high-precision and high-quality castings, which can produce parts with complex shapes and precise dimensions. The following are some commonly used precision casting methods in Dalian.

1. Investment casting: Investment casting is a process of injecting molten metal into a pre made heat-resistant mold, allowing it to cool and solidify into shape. Investment casting can produce high-quality, high-precision, and complex castings. Investment casting has the advantage of manufacturing parts with smaller dimensions, complex shapes, and high precision.

2. Melt film casting: Melt film casting is a method of making molds using melted plastic or wax, and then injecting molten metal into the mold to cool and shape it. Melt casting can produce high-precision, high surface quality, and complex shaped parts. Melt casting is suitable for producing small batches of parts.

3. Investment casting: Investment casting is a process of injecting molten metal into ceramic molds. Investment casting can produce high-precision and high surface quality castings. Investment casting is suitable for manufacturing very complex parts, such as turbine blades and guides.

4. Cold chamber casting: Cold chamber casting is a process that controls the temperature and quality of metal melt by using a cold chamber. Cold chamber casting can produce high-precision and high-quality castings, especially suitable for manufacturing parts made of high-temperature alloys and other materials.

5. Low pressure casting: Low pressure casting is a process of injecting molten metal into a mold through pressure. Low pressure casting can produce castings with high precision, high surface quality, and good uniformity. Low pressure casting is suitable for manufacturing large and complex shaped parts.

6. Vacuum casting: Vacuum casting is a casting process carried out in a vacuum environment. Vacuum casting can effectively reduce the content of metal gases and the generation of pores, thereby producing high-quality castings. Vacuum casting is suitable for manufacturing high demand parts, such as aerospace components and precision mechanical parts.

7. Water glass bonding casting: Water glass bonding casting is a casting process that uses water glass binder to bond sand molds. Water glass bonded casting can produce high-precision and high-quality castings, especially suitable for manufacturing large and heavy parts.

8. Silica sol casting: Silica sol casting is a casting process that uses silica sol as a binder to make sand molds. Silica sol casting can produce castings with high precision, high surface quality, and good uniformity. Silica sol casting is suitable for manufacturing parts with high requirements and complex shapes.

9. Selective laser melting: Selective laser melting is a 3D printing technology that uses a laser beam to melt and stack layers of metal powder. Selective laser melting can produce highly complex and high-precision castings, suitable for manufacturing special shaped and small batch parts.

10. CNC milling: CNC milling is a method of using CNC machine tools for cutting, which can remove excess material from the blank to form the desired shape and size of the part. CNC milling is suitable for manufacturing high-precision and high surface quality parts.