TY JOUR TI MATING SURFACES MACHINING IN CROSSED CHANNELS KW combined machining KW small-size plant KW electrode-brush KW brush KW crossed channels KW transition areas KW machining modes JO Bulletin of Bryansk state technical university AU Kirillov, O.N. AU Smolencev, V.P. AU Kotukov, E.V. PY 2020 IS 2020 PB Bryansk State Technical University