The solid CBN SNFN1206 is used to mill the cylinder block of the automobile engine.
The material is gray cast iron, the hardness is HB180~220, and the cutting parameters are Vc=800~1000m/min, ap=2~3mm, Fz=0.1~0.15mm.
Compared with the original coated carbide blade, the durability of CBN is 8 times, and the machining efficiency is more than 4 times.