PROCESS FOR MANUFACTURING FORGINGS MADE OF LIGHT ALLOY, INCORPORATING SOLID OR THINNED-DOWN SECTIONS

摘要

The process comprises: a) definition of the final hollow part in its internal portion after forging, with deformation of the solid or thinned-down sections; b) modelling of the solid and thinned-down sections; c) formation of the thinned-down sections by means of recyclable single-material cores positioned at the places requiring zones with a thinned-down section, and modelling of the core(s); d) after modelling, definition of the semi-finished product (2) and of the cores in their initial forms having a different configuration from the forged cores; e) after casting of the metal around the core(s), 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; f) fettling of the part; and g) removal of the cores.