CB series product features:
Composed of PCBN layer and cemented carbide as a substrate for good weldability
It also has High toughness and breaking strength
Good wear resistance
Good chemical stability
High precision of workpiece size
Good machining consistency
SF-Diamond PCBN (polycrystalline cubic boron nitride) is ideal for tools used to machine hard ferrous metal items (HRC45-65) such as high speed steel, bearing steel, cast iron,etc.
It’s typically used to machine brake discs, engine blocks, engine cylinder liners, brake drums, flywheels, valve seats and guides, gears, mold and die parts etc.The surface finish of the workpiece is good, which can replace grinding with turning, greatly improve labor efficiency and effectively reduce production costs.
| Category | Grades | Performance | CBN content | Application fields & processing methods | Representative workpieces |
| CB (with carbide substrate) |
CB900 | High conductivity High wear resistance |
90% | Cast iron Hardened steel, heavy intermittent interruption Powder metal |
Engine block, cylinder head Brake disc, valve seat ring |
| CB720 | High wear resistance High chipping resistance Anti chemical corrosion |
70% | Hardened steel with hardness of HRC45-68, continuous to medium interrupted nodular cast iron |
Gear, bearing, crankshaft | |
| CB500 | High wear resistance Anti chemical corrosion |
50% | Hardened steel(HRC45-68), continuous hi-speed finish machining | Gear, bearing |
| Category | Grade | Cutting Method | Diameter(mm) | Available Thickness (mm) | CBN layer Thickness (mm) |
| CB (CBN with carbide substrate) | CB900 | EDM | 59+/-0.1 | 1.6/2.0/2.4/3.2/4.8 | 0.7-1.0 |
| CB720 | EDM | ||||
| CB500 | EDM |
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