Tool Material

Workpiece

Recommended cutting parameters

Cutting speed

V(m/min)

Feed rate

F(mm/rev)

Depth of cutting

D(mm)

CBN

Hardened steel:HRC50-67

50-150

0.05-0.12

~0.3

Gray cast iron: about HB200

500-1000

0.1-0.5

~3.0

High hardness cast iron: HRC50-65

50-150

0.1-0.3

~2.5

Powder metallurgy work-piece

80-200

0.03-0.2

~1.0

Thermal spray coating work-piece

50-150

0.1-1.0

~2.5

Other(Such as Co>15%wt Carbide HRA=80-88)

5-40

0.05-0.2

~0.3