Investigating effectiveness of changing calibration of input cone of rolls and lines of a piercing mill with tapered rolls using computer modeling
O. A. Panasenko,
A. O. Khalezov,
D. Sh. Nukhov
Abstract:Screw piercing of a workpiece is a process with complex cyclical nature of metal flow in deformation center. Setting up the deformation tool and its calibration, as well as the accuracy of the workpiece feed and release of the hollow billet from deformation zone, have a significant impact on the quality of the hollow billet: dimensional accuracy and presence of defects on its inner and outer surface. In the paper, a technical solution was proposed to increase the stability of piercing a continuously cast workp… Show more
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