Difficulties in the Machining Super Duplex Stainless Steels

András István Nagy, Enikő Réka Fábián, Richárd Horváth, Pal Terek
2019 Műszaki Tudományos Közlemények  
Super duplex stainless steels are used in increasingly more areas. The machinability of duplex stainless steels is generally poor. We performed dry turning tests on G X2CrNiMoCuN 26-6-3-3 casted superduplex steel, using two different PVD coated cutting inserts. One of them was coated with TiAlN and other with TiAlSiN. Strong burr and built-up edge formation were observed during our machining experiments; these damaged the edges of the tools. The shortened tests did not show significant
more » ... ignificant difference betwen the effect of the coatings.
doi:10.33894/mtk-2019.11.31 fatcat:z336xp5b4vhgrki4czpa2ecjhi