PCBN Heavy Turning
Heavy Turning Applications
For slurry pump parts, cast iron rolls, crushing cones, high manganese steel, and difficult alloys where interrupted cutting, abrasive wear, and edge strength matter first.
Typical machining challenges
- Interrupted cutting on high chromium cast iron and cast rolls.
- Severe abrasive wear on slurry pump parts and wear components.
- Roughing loads on high manganese steel and crushing parts.
- Unstable life from standard carbide or general comparison CBN grades.
Recommended solution overview
HEYI HP-K1 is suited to high chromium cast iron and similar heavy interrupted turning jobs where stable wear and edge strength are critical. HEYI HP-S20 is relevant when the application needs stronger performance on high manganese steel, high-hardness rolls, or difficult alloys.
Application case evidence
Slurry Pump Impeller Machining
- Workpiece
- Slurry pump impeller
- Material
- High chromium cast iron Cr26, around HRC60
- Insert grade
- HEYI HP-K1
- Cutting data
- ap 2.5 mm, Fr 0.25 mm/r, Vc 45 m/min
- Result summary
- Tool life reached 11 pcs, versus 3 pcs from a comparison CBN grade, with stable wear instead of rupture.
Slurry Pump Body Machining
- Workpiece
- Slurry pump body
- Material
- High chromium white cast iron Cr26, around HRC60
- Insert grade
- HEYI HP-K1
- Cutting data
- ap 2.5 mm, Fr 0.12 mm/r, Vc 75 m/min
- Result summary
- Tool life reached 85 pcs per blade, versus 35 pcs per blade from a standard CBN insert.
Cast Iron Roll Machining
- Workpiece
- Cast iron roll
- Material
- High nickel chromium alloy cast iron roll, around HSD80
- Insert grade
- HEYI HP-K1
- Cutting data
- ap 4 mm, Fr 0.7 mm/r, Vc 45 m/min
- Result summary
- Cutting speed increased from 35 m/min to 45 m/min, while tool life improved from 2 pcs to 3 pcs.
High-Speed Steel Roll Machining
- Workpiece
- Roll
- Material
- High-speed steel roll, around HSD90
- Insert grade
- HEYI HP-S20
- Cutting data
- Fr 0.2 mm/r, Vc 35 m/min
- Result summary
- Completed 25 grooves per tip, compared with 12 grooves from a comparison insert.
Interrupted Turning of High Chromium Cast Iron
- Workpiece
- High chromium alloy cast iron component
- Material
- High chromium cast iron, around HRC60
- Insert grade
- HEYI HP-K1
- Cutting data
- ap 1.5 mm, Fr 1.2 mm/min, Vc 50 m/min
- Result summary
- Cutting width reached 500 mm versus 150 mm from a comparison CBN insert.
Crushing Cone Machining
- Workpiece
- Crushing cone
- Material
- High manganese steel
- Insert grade
- HEYI HP-S20
- Cutting data
- ap 7.5 mm, Fr 0.5 mm/r, Vc 65 m/min
- Result summary
- Depth of cut increased to 7.5 mm versus 3.5 mm for carbide; tool life reached 2 pcs per blade versus 0.5 pcs per blade.
High Manganese Steel Plate Machining
- Workpiece
- High manganese steel plate
- Material
- High manganese steel
- Insert grade
- HEYI HP-S20
- Cutting data
- ap 2.5 mm, Fr 0.2 mm/r, Vc 75 m/min
- Result summary
- Speed increased from 25 m/min to 75 m/min, feed increased from 0.15 mm/r to 0.2 mm/r, and tool life improved from 25 minutes to 270 minutes.
Ni-Base Alloy Turning
- Workpiece
- Ni-base alloy part
- Material
- Ni-base alloy, around HRC50
- Insert grade
- HEYI HP-S20
- Cutting data
- ap 1.5 mm, Fr 0.15 mm/r, Vc 145 m/min
- Result summary
- Tool life reached 5 pcs per blade versus 3 pcs per blade from a comparison CBN insert.
Send your application for review
Send workpiece material, hardness, current insert or toolholder, cutting data, failure mode, and target result through Full RFQ. For a quick first discussion, use Contact Us. Relevant family: PCBN Tools.