| 摘要 |
FIELD: cold sheet forming processes and equipment. ^ SUBSTANCE: die set includes punch, die with tightening lip and tightening ribs and holder with constriction ribs. First tightening rib of holder is arranged between tightening lip of die and first tightening rib of die; next tightening ribs of holder are arranged respectively between tightening ribs of die. ^ EFFECT: enhanced quality of formed part, lowered consumption of rolled sheet. ^ 2 dwg |
