Mathematical Simulation of the Tube’ Plate Billets Forming for the Welded Large Diameter Tubes
The results of welded pipe investigation in diameters from 508 to 1420 mm, wall thickness from 8 to 48 mm and grade up to K80 (XI00) are presented. Mathematical simulation of plastic forming modes with a quantitative assessment of stress-strain state of the metal in thick tube blank on edging and incremental forming presses of electric pipe-welded mill 1420. The created computer program allows the calculation of process parameters settings of press equipment to determine the value of the controlled metric parameters of tube billet, required in the regulations. Theoretical solutions tested experimentally on assortment of large diameter pipes, produced on electric pipe-welded mill 1420.