%0 Journal Article %T RESEARCH OF DEVELOPMENT OF THE TECHNOLOGY ALLOWING TO INCREASE FIRMNESS OF THE CUTTING TOOL FOR THE ACCOUNT APPLICATION OF THE COMBINED COVERING %A Bakumenko, A.. %K Plasma hardening, firmness tool, combined method. %J Actual directions of scientific researches of the XXI century: theory and practice %D 2014 %N 2 %P 2 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov