Hardened Steel Machining
Cutting tools for hardened steel (45-65 HRC) — CBN inserts that replace grinding in many hard turning operations, plus tough carbide grades for lighter interrupted cuts.
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Why Hardened Steel Machining Needs CNC Cutting Tools
Cutting tools for hardened steel (45-65 HRC) — CBN inserts that replace grinding in many hard turning operations, plus tough carbide grades for lighter interrupted cuts.
- CBN inserts for hard turning 45-65 HRC — replace grinding in many cases
- High CBN-content grades for continuous hardened steel turning
- Low CBN-content grades for cast iron and interrupted cuts
- Negative geometries and rigid clamping for vibration-free hard turning
- Surface finishes comparable to grinding with dry machining
- Application engineering for speeds, feeds and depth of cut
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FAQ
Questions Buyers Ask
Can CBN inserts really replace grinding?
In many cases yes — hard turning with CBN achieves Ra 0.4-0.8 finishes and tight tolerances with higher productivity, lower setup cost and no coolant. Typical parts: bearing races, gear shafts, die components. The machine must be rigid and vibration-free.
What speed should I use for CBN hard turning?
CBN performs best at high cutting speeds (typically 120-250 m/min for hardened steel). Below that, conventional carbide may be more economical. We provide recommended parameters with every CBN order.