Method and means for shaping parts by hydraulic extrusion

摘要: A method for shaping parts by hydraulic extrusion, which allows deforming the billet different pressures exerted upon zones. The is embodied in a device comprises vessel housing, and plurality of auxiliary vessels whereof edges are pressed against billet, defining closed cavities therewith. Liquid under pressure supplied into each these cavities. manufactured have negligible wall thickness error. permits manufacturing double-curvature parts.