TY JOUR TI WORKING CAPACITY TECHNOLOGICAL SUPPORT OF HEAVY DUTY PARTS AND PRODUCTION TOOLING ELEMENTS KW finishing and strengthening treatment KW technological support KW working capacity KW operation duration KW working surface quality KW super-hard materials JO Bulletin of Bryansk state technical university AU Naduvaev, V.V. AU Frolov, E.N. PY 2019 IS 2019 PB Bryansk State Technical University