Reversing Design Methodology of Investment Casting Die Profile based on ProCAST

Casting

China Foundry, Vol. 7, No.2

Turbine blade is one of the critical components of aircraft engine. The performance of the engine
depends on the shape and dimensions of components, but superalloy blade material cannot be easily machined.
Although investment casting is an ideal process for such net-shape components, it requires an accurate
determination of the casting-die profi le. In this paper, a reversing design methodology for investment casting die
using ProCAST is proposed. By combining the methods of simplifying grid fi les and quick sorting, the effi ciency of
sorting and matching can be largely improved. Further, the mould/die cavity anti-deformation system can be easily
built. With ProCAST, the optimized die profi le for investment casting can be established.