Shaping of Pipe Blanks in the Edge-Bending Pressof the TESA 1420 Pipe-Electrowelding Line

摘要

Contact geometric measurements of pipe blanks in the edge-bending section of the TESA 1420 pipe-electrowelding line are made by a new method. The influence of the pipe blank's edge geometry on the shape of the edge zone after the subsequent processes is assessed. The stages of the experiment are outlined. The experimental data are obtained in the form of the coordinates of points on the edge. Measurements of the edge geometry by different methods are compared. The use of photographic-survey measurements is promising for use in the production of large-diameter pipe.