The Pramet PVD coated T6310 grade features a special sintering process to enhance cutting edge reliability and strength. Its new substrate with intermediate Cobalt content provides additional hardness and increased abrasion resistance to offer greater reliability and prolonged tool life.
The T6310’s triple coating provides durability for higher cutting speeds used when machining stainless steel, heat-treated and hardened materials. It is suitable for use with the SM and SF chip breakers, as well as Pramet’s existing NF and RM geometries, with a total of more than 90 inserts now available.
Josef Bittner, product manager for turning at Dormer Pramet, said: “The thermal conductivity of stainless steel, nickel and titanium tends to be low, but with high cutting speeds and feeds required during machining, the cutting edge can quickly become overheated, shortening tool life.
“Machining with coolant reduces these effects, but the constant change of temperature at the cutting area causes heat stresses, resulting in thermal cracks and, again, poor tool life.
“We therefore saw a need to create a new grade with the right combination of substrate and coating to enhance resistance to thermal cracking. Our new T6310 grade achieves that objective.”