BXA20 Coated CBN Grade for Hardened Steel

Originally titled 'Coated CBN Grade for Hardened Steel'

This CBN grade exhibits excellent wear and fracture resistance in a low to medium cutting speed range, with enhanced tool life in continuous, as well as interrupted, cuts.

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BXA20 delivers predictable and long tool life in a range of applications from roughing to finishing, including descaling of case hardened steel, which usually requires a large stock to be removed. This CBN grade exhibits excellent wear and fracture resistance in a low to medium cutting speed range, with enhanced tool life in continuous, as well as interrupted, cuts.

The grade series is available with a built in wiper for a superb surface finish at high feed rates or a chipbreaker for smooth chip control in large stock removal, covering a variety of applications, the company says. 

The BXA20’s multi-layered PVD coating is twice as thick as the conventional grade to improve wear resistance. The top most layer of the coating has a very low co-efficient of friction to help reduce crater wear. This multi-layered PVD coating with enhanced adhesion strength increases chipping and peel off resistances. 

The dedicated carbide substrate withstands a heavy load of interrupted cutting and large depth-of-cut machining, the company says.