WELDING OF ADDING MATERIAL TO PROCESSED PART SURFACE, SOLID OF REVOLUTION, WITH USE OF TWO ROLLER ELECTRODES, ADDING MATERIAL WELDING UNIT AND WELDING HEAD Russian patent published in 2015 - IPC B23K11/06 

FIELD: process engineering.

SUBSTANCE: invention can be used for electric contact building up of the adding material to the surface of part as the solid of revolution. Two roller electrodes are located on one plane perpendicular to the part rotational axis, from one side of said part at preset spacing and pressed against the ply of welding adding material. Processed part is turned to make the electrodes displace along one weld. A chain of welding points are made with location of said welding points of one electrode between those of another electrode to get the continuous circular weld. The welding head is provided with two carriages of electrodes with adjustable spacing there between.

EFFECT: lower electric power input due to minimized electric power losses related with the part heating.

10 cl, 5 dwg