SIMULATION OF THE POST-BENDING PROCESS OF WELDED PIPE BILLETS, PRODUCED AT JSC "VOLZHSKY PIPE PLANT"
Simulation of edges post-bending process of a pipe billet was carried out. It is shown that the use of common post-bending tool calibration leads to the formation of various defects, such as a change in the gap between the edges along the pipe axis, vertical waves at the edges, and also local reduction in sheet thickness.