In the Dongguan precision casting process, the parts that are carefully crafted, not messy, and close to the shape are rarely processed or used directly, which is a good technique for near-net modeling. The forging industry is a widely used technology. Compared with other casting methods, Dongguan Precision Casting is not only suitable for forging various alloys, but also produces castings with high dimensional accuracy and good surface quality. Compared with other casting methods, castings that are difficult to cast, high temperature resistant, and difficult to process, can be invested in precision casting. At present, investment casting technology is developing rapidly worldwide. As far as the current situation is concerned, the development trend of this technology is that castings are approaching parts, and it is difficult for traditional precision casting blank processing to quickly adapt to market pressure. The quality of components is constantly improving, and the development strength is increasing day by day. The professional team began to research and develop, CAD, CAM, and CAE, which became an important part of product development.

The influence of pouring temperature: higher casting temperature, lower casting temperature and more suitable casting temperature.

Melting and casting fusible materials made of some specially designed refractory coatings. The Dongguan precision casting product is dried and hardened to form a single-layer shell. The shell is melted with steam or hot water, and then the shell is placed in the sand box, filled with dry sand nearby, and then the mold is placed in a baking oven for baking . After baking, the casting or shell pours the molten metal into the casting.