Method for regenerating a drill pipe

The invention relates to welding and overlaying and can be used for recovering worn-out parts of pieces like solids of revolution, in particular drill pipes. The inventive method for repairing a drill pipe (1) consists in forming a bead submerged on the surface of the worn nipple (3) and coupling (4) parts of the pipe by means of automatic electric arc welding during the tube rotation and in displacing electrodes back and forth along the generatrix of the tube, wherein, prior to overlaying, the electrodes (5) is in a plane where the lower end of the electrodes (5) has a linear deviation of 20-30 mm from a vertical tangent plane which passes the drill pipe axis and is perpendicular to the ground, and has an angular deviation of 18-26 degrees therefrom, and the tile direction of the electrodes (5) is opposite to a rotation direction of the drill pipe (1); the overlaying is carried out with a straight polarity when a minus is connected to the electrodes (5) and a plus is connected to the pipe, all the electrodes