High temperature titanium alloy precision casting method based on rapid prototyping

The invention relates to a high temperature titanium alloy precision casting method based on a rapid prototyping and relates to a casting method. The high temperature titanium alloy precision casting method solves the problems that the preparation technology is complex, the cost is high and a high temperature titanium alloy part with a complex shape is difficult to obtain in the existing method. The method comprising the following steps: 1, rapidly make mould to obtain a cere; 2, make a shell mold; 3, roast; 4, pour a high temperature titanium alloy casting; 5, post treat, the high temperature titanium alloy casting is obtained after cleaning shell, spraying sand, annealing, finishing and pressure maintaining. The preparation technology of the invention is simple, the cost is low, the design is flexible, thereby being capable of volume production, and the high temperature titanium alloy part with the complex shape can be obtained.