EQUIPMENT FOR FORGING OF RING-SHAPED FORGED PIECES Russian patent published in 1994 - IPC

FIELD: mechanical engineering. SUBSTANCE: equipment has a slab, a lower block head with a changeable catcher and a rocker, made as an unequalled arms lever. The lever hinged to a slider of the press. The upper block head is hinged to the shorter arm of the lever by links. Blank rotation between reductions is made by a mandrel. The mandrel has a cylindrical and a sector working surfaces, on which the blank reduction is exercised. EFFECT: equipment is used for manufacture of large scaled ring-shaped blanks by flattening outside of the zone of the pressing mill. 4 dwg