DEVICE FOR SHAPING A METAL SHEET BY DIE FORGING

摘要

The invention relates to a device for shaping a metal sheet by die forging, which includes first and second trunnions (20, 30) configured so as to be attached at two opposite ends of a metal sheet (10), respectively, said metal sheet (10) being suitable for being shaped by die forging in which the first and second trunnions (20, 30) define first and second bearing surfaces, respectively, configured so as to guide the rotation of the trunnions (20, 30), respectively, the first bearing surface defining a peripheral groove (28) around the axis of rotation of the first trunnion (20) while the second bearing surface is smooth along the axis of rotation of the second trunnion (30).