Patent ID: 7565851

Claim:
A process for geometrical construction of a flash land, to be provided in a die for forging of a turbomachine vane, in accordance with determined parameters, where the vane includes a blade, the blade is defined by plane sections according to predetermined planes, and the flash land and a corresponding flash gutter of the flash land must be defined in accordance with said predetermined planes to obtain plane sections of the blade and of the flash land, said process comprising: choosing at least three reference planes corresponding to a root, middle and tip of the blade, choosing, in said reference planes, at least three reference sections of the blade in reference planes corresponding to the root, middle and tip of the blade, determining, in said reference planes, a length of the flash land and a shrinkage distance for the three reference sections, and constructing by interpolation, in said predetermined planes, intermediate sections of the flash land and the corresponding flash gutter of the flash land from said reference sections.