Abstract
The technology of cross-screw reduction of tube billets with reverse correction is presented. The calculation of the change in the geometry of the workpiece with a change in the feed angle is carried out. It is shown that for small feeding angles the change in geometry is insignificant, which makes it possible to conduct reverse correction of the workpiece. The calculation of parameters of reverse grooving is carried out.
Highlights
The technology of cross-screw reduction of tube billets with reverse correction is presented
It is shown that for small feeding angles the change in geometry is insignificant, which makes it possible to conduct reverse correction of the workpiece
3. Получена зависимость, связывающая количество оборотов, совершаемых заготовкой в области калибровки, с основными технологическими параметрами процесса обработки (скорость вращения валков, скорость изменения угла подачи, размеры заготовки и валка в очаге деформации, а также значения угла aкрит, определяющего геометрическую точность заготовки)
Summary
The technology of cross-screw reduction of tube billets with reverse correction is presented. Взаимное расположение систем координат валка и заготовки приведено на рис. Уравнение (1) конической поверхности валка в системе координат заготовки Xз, Yз, Zз с учетом уравнения (6) имеет вид: (Zç cos a - X ç sin a)2 + ((Yç - p) cosb - X ç cos a sin b - Zç sin a sin b)2 -
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