| 摘要 |
FIELD: metal pressure forming. SUBSTANCE: method of straightening, mainly strip metallic blank, for profiling operations with thickness S=(3-6) mm, comprises steps of multiple variable sign bending of the strip by rollers of sheet straightening machine with decrease of deflection from its maximum value until zero by a constant value for each next bending. The maximum value of the deflection is being set according to expression H = S[1+(0,7...0,8)•10•(σ)], where σ- yielding strength of metal to be straightened, kgf/square mm. EFFECT: enhanced plastic properties of the blank, prevention of cracking upon profiling process due to optimization of bending values of the metal to be straightened. |
