This paper introduces the general situation of the development of marginless melted module precise casting,expatiates on its technological characteristics,and briefly introduces its expanded application in the recent ten years combined with the popularization and the application fields of marginless melted module precise casting.

Design of Investment Casting Mould for Large Turbine Blade;

Ring Nozzle in Investment Casting;

Shellmould Fabrication for the Investment Casting of Titanium Aluminides;

Adding Al before tapping,the lathe tool is produced by investment casting with W18Cr4V scrap inthe intermediate frequency induction furnace.

In this paper the development and study status of precision casting for the large-thin wall-complex titanium alloys casts are introduced in the aspects of melting, precision casting and defect detecting.

The precision casting technology of steel cable fixtures made of 1Cr18Ni9 stainless steel is presented in this paper.