Carbide Insert Cutting Parameter Recommendations

1. Carbon Steel (ISO P)

Recommended application: turning, general machining

• Cutting speed (Vc): 180–280 m/min

• Feed rate (f): 0.15–0.35 mm/rev

• Depth of cut (ap): 1.0–3.0 mm

Technical notes:
Use medium to positive rake geometry to reduce cutting forces. CVD-coated carbide inserts are recommended for higher wear resistance in continuous cutting operations.

2. Stainless Steel (ISO M)

Recommended application: turning, semi-finishing

• Cutting speed (Vc): 120–200 m/min

• Feed rate (f): 0.10–0.30 mm/rev

• Depth of cut (ap): 0.8–2.5 mm

Technical notes:
Select tough carbide grades with sharp cutting edges. PVD coatings help reduce built-up edge and improve surface finish.

3. Cast Iron (ISO K)

Recommended application: turning, roughing

• Cutting speed (Vc): 200–350 m/min

• Feed rate (f): 0.20–0.45 mm/rev

• Depth of cut (ap): 1.5–4.0 mm

Technical notes:
Wear resistance is critical. Use hard carbide grades with abrasion-resistant coatings. Dry cutting is often suitable.

4. Alloy Steel (ISO P)

Recommended application: roughing to finishing

• Cutting speed (Vc): 160–250 m/min

• Feed rate (f): 0.15–0.30 mm/rev

• Depth of cut (ap): 1.0–3.0 mm

Technical notes:
For interrupted cuts, select tougher substrates and reinforced edge preparation to avoid chipping.

5. General Optimization Tips

• Increase feed before increasing cutting speed to improve productivity

• Monitor flank wear (VB) to ensure predictable tool life

• Adjust parameters based on machine rigidity and workpiece hardness

• Stable tool wear is preferred over maximum cutting speed