| 摘要 |
FIELD: plastic working of metals, in particular, sheet stamping. SUBSTANCE: method involves two stages: at the first stage local depressions are drawn in the process of beading in maximum deformation-loaded locations; at the second stage openings are punched, with opening beads passing over bottom of drawn depressions, and beads of required shape are formed. In the process of local depression drawing, punching and beading, deformation extent E1 = 0.26, E2 = -0.093, plasticity factor is significant since maximum deformation values during drawing are E1 = 0.405, E2 = -0.093. When mechanical characteristics slightly deviate toward affecting stamping parameters, this deviation will exceed plasticity factor. EFFECT: increased quality and reduced production cost of part. 2 cl, 2 dwg |
