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Abstract

The process includes: definition of the final hollow part in its internal portion after forging with deformation of solid or thinned-down sections;

modelling of the solid or thinned-down sections;formation of the thinned-down sections by recyclable single-material cores positioned at places requiring zones with a thinned-down section, and modelling of the cores;after modelling, definition of the semi-finished product and of the cores in their initial forms having a different configuration from the forged cores;after casting of metal around the cores, in the prior initial form, striking of the semi-finished product with its cores resulting in the part and its cores being deformed from their initial shapes to their final shapes;fettling of the burrs; andremoval of the cores.

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First Claim