METHOD OF ROLLING METAL BILLET Russian patent published in 2013 - IPC B21B37/00 

FIELD: process engineering.

SUBSTANCE: invention relates to production of rolled stock and may be used in rolling of long-sized billets including those with superplastic properties. Method of rolling between shaping rolls comprises selection of forming roll working surface shape by computer simulation at steady-state plastic yielding of metal in deformation zone with due allowance for superplasticity. Billet is formed at forming rolls with variation of forming rate at every stand owing to selection of forming roll working surface shape of next stand proceeding from optimum shape at previous stand. Note here that forming roll working surface shape is selected with due allowance for distribution of billet metal plastic yielding in deformation zone in directions perpendicular to rolling direction and plastic yielding rate in direction of rolling related therewith to be computed by mathematical relationship.

EFFECT: higher quality of finished product, power saving.

2 dwg