Modeling the stressed state in the instant deformation zone during rolling pipes on cold rolling mills

The article states the problem of calculation the calibration of the technological tool for rolling pipes which are made of hardly-deformed steels and alloys on cold rolling mills. The received analytical dependences for definition of energy-power parameters in the instant deformation zone allow to rate process conditions and to project protapering of the working tool during the manufacturing of cold-rolled pipes made of hardly-deformed steels and alloys.