Influence of coatings based on Zr and Ti on the wear resistance of cemented carbide tools when turning transport machines’ parts from structural steels

The influence of coatings based on titanium carbide and zirconium carbide, obtained by PVD method, cutting tool wear resistance under conditions the longitudinal turning transport machines’ parts steel 45 stainless 12H18N10T inserts hard alloy grade T15K6 was investigated. It has been experimentally established that presence composition coating working surfaces in most cases contributes to a significant reduction intensity cemented inserts. When 12H18N10T, best result demonstrated ZrN + (Ti–Zr) N TiN, which provided not only minimum wear, but also expansion range optimal speeds. machining structural 45, maximum observed with use single-layer TiN (Ti,Zr)N coating.