“…For the restoration of cylindrical surfaces, various methods of surfacing, gas-flame and plasma spraying, electrolytic deposition, and resistance welding are mainly used [4]. Wide opportunities for increasing the durability of parts are opened up by the use of resistance welding and powder brazing, which has the following undeniable advantages [5]: high productivity; minimal losses of filler material (during welding and subsequent processing, losses do not exceed 5%); practically no burnout of chemical elements of the filler material; insignificant thermal effect on the part (the zone of thermal influence does not exceed 0.3 mm); the ability to apply a thin, dense, poreand shell-free layer of metal with high hardness and with minimal allowance for machining.…”