%0 Journal Article %T INVESTIGATION OF FACETED THROUGH-AWAY TIP DURABILITY AT THERMALLY HARDENED 40H2N2MA STEEL TURNING %A Makarenko, K.V. %A Tolstyakov, A.N. %K %J Bulletin of Bryansk state technical university %D 2018 %N 2018 %P 4 %I Bryansk State Technical University