A new Computer-Aided Design approach is introduced for design of steel castings taking into account the feeding ability in sand moulds.

This approach uses the geometrical modeling by a CAD-program, in which the modul “Castdesigner” is implemented, which includes the

feeding models of steel castings. Furthermore, the feeding ability is guaranteed immediately during the design by an interactive geometry

change of the casting cross section, so that a directional feeding of the solidifying casting from the installed risers is assured.