Open AccessMODELING THE WORK OF THE HEAD OF A HYDROMECHANICAL EXPANDER FOR WELDED PIPES OF A LARGE DIAMETER
Author(s) -
Л. М. Гуревич,
Dmitry B. Frunkin,
A. A. Istrati,
V. A. Sonnova
Publication year - 2020
Publication title -
izvestiâ volgogradskogo gosudarstvennogo tehničeskogo universiteta
Language(s) - English
Resource type - Journals
ISSN - 1990-5297
DOI - 10.35211/1990-5297-2020-2-237-47-51
Subject(s) - wedge (geometry) , head (geology) , materials science , tube (container) , finite element method , welding , mechanics , structural engineering , geology , composite material , engineering , physics , optics , geomorphology
Finite element simulate of the operation of the expander head during the calibration of welded bulky pipes was carried out. The forces required to move the parts of the expander power drive are determined. It is shown that a change the length of the cylindrical surface of the wedge segments of the expander and the axial movement step size with constant radial extension of the segment changes the distribution of plastic deformation in the tube billet s.