Dalian precision casting is a casting method relative to traditional casting techniques. It can achieve relatively accurate shapes and high casting accuracy. A common practice is to first design and manufacture molds according to product requirements (with very little or no margin left), and use casting methods to cast wax to obtain the original wax mold; Repeat the coating and sanding process on the wax mold, harden the shell and dry it; Dissolve the internal wax mold again to remove wax and obtain the mold cavity; Baking the shell to obtain sufficient strength; Metal materials required for pouring; After shelling, clear the sand to obtain high-precision finished products. According to product requirements or undergo heat treatment and cold processing.

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.

Simulation can be performed on various stages of casting pouring. There are algorithms for simulating casting filling and solidification, such as three-dimensional finite element method, numerical method, and priority difference method. At present, the simulation of the casting filling process is relatively mature, and significant breakthroughs have been made in the accuracy and practicality of the simulation.

Predict and analyze the possible defects that may occur during casting. In the production process of castings, casting defects are inevitable. By using casting simulation technology, the location of casting defects can be predicted, enabling designers to make targeted structural improvements. The current defect simulation and prediction technology has become mature.

Gypsum precision casting is a rapid and economical process technology for manufacturing metal molds, especially for molds with complex surfaces and fine patterns, such as various plastic cup forming molds (injection molding, vacuum molding, etc.), rubber forming molds (including tire molds and shoe molds embedded with stainless steel sheets, etc.), casting molds (plate core boxes, etc.), and stamping molds.