| 摘要 |
FIELD: plastic working of metals. SUBSTANCE: method involves pressing central portion of billet; drawing edge portions into die; bending edge portions in accordance with expected springing, with bending being effectuated prior to drawing edge portions into die at the stage of free bending by die and punch edges, with space between edges of die and punch being triple the length of developed radius portion of part. EFFECT: increased efficiency, reduced production cost and improved quality of parts. 2 cl, 1 dwg |
