CBN is a synthesized material exceeded in hardness only by diamond. However, unlike diamond cutting tools, CBN cutting tools are stable at temperatures up to 1,800 degrees F for machining hardened ferrous or superalloy materials of Rc 45 or higher and for machining some cast irons.
PCBN cutting tools can run dry for clean machining processes to save coolant, maintenance, and disposal costs while reducing the potential for environmental and health impacts.
PCBN cutting tools are available as solid, full-face, or tipped inserts. Tipped PCBN cutting tools use PCBN inserts, which can be economical and reliable for a wide range of roughing and finishing applications, and some applications require a solid or full-faced insert.
Solid PCBN--RCMV0605