TY JOUR TI RESEARCH OF DEVELOPMENT OF THE TECHNOLOGY ALLOWING TO INCREASE FIRMNESS OF THE CUTTING TOOL FOR THE ACCOUNT APPLICATION OF THE COMBINED COVERING KW Plasma hardening KW firmness tool KW combined method. JO Actual directions of scientific researches of the XXI century: theory and practice AU Bakumenko, A.. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov