Welded pipe geometry changing during the expanding process

Calculation and experimental technique for evaluating the parameters of the contact interaction of a strip billet with a roll tool in the ERW mill lines

“…It's known that different technological lines for manufacture of electric resistance-welded pipes are used in ERW production [1][2][3][4][5]. The area for forming of initial flat tubular billet with consequent manufacture of finished pipe is mainly the feature of such technological lines [6,7]. Different deformation tools and forming routes are used depending on dimension range of pipes.…”