CBN insert for hard turning hardened materials

PCBN inserts hardness (cubic boron nitride cutting tool) is generally HV3000 ~ 5000, HV hardness conversion HRC equivalent HRC95-100,for more than HRC50 high speed turning hardened workpiece, the most cost-effective in terms of reducing costs.

1.BN-H10 grade PCBN inserts:Continuous hard turning hardened steel,edge welded PCBN inserts,economic cutting speed Vc=120-230m/min; Fr = 0.1-0.25mm/r; figure as follows:

2.BN-H11 grades PCBN inserts: Continuous cutting,economic cutting speed Vc = 120-190m/min.Fr = 0.1-0.3mm/r,BN-H11 Welded CBN insert as follows:

3.BN-H20 grades PCBN inserts:Semi-interrupted turning PCBN inserts,economic cutting speed Vc=100-180m / min,Fr = 0.07-0.15mm/r,mosaic structure (with the BN-H11,as above).

4.BN-H21 grades PCBN inserts:Heavy interrupted turning inserts, weld edge structure (similar with BN-H10);good impact toughness,suitable for interrupted turning more than HRC55 hardened steel. inserts structure is similar with BN-H10.

5.BN-S20 grades:Solid CBN inserts:Halnn exclusive non-metallic binder CBN tools can be formulated roughing and interrupted machining hardened parts.Cutting Depth:up to 7.5mm,for repairing mold.Economic cutting speed Vc= 90~150m/min, Fr=0.1-0.45mm/r.

PCBN inserts commonly used fields:

1.    Finishing Gears and gear shaft after quenching, commonly used model number: BN-H10 CNGA120408, CNGA120404, BN-H20 WNGA080408, BN-H20 WNGA080404, BN-H10 VNGA160404, BN-H20 VNGA160408, BN-H20 DNGA150408, and so on.

2.    Finish turning Hardened steel rolls:RNGN120400 BN-S20, SNGN120408 BN-S20, SNGN120412 BN-S20, CNGN120408 BN-S20.

3. Hard turning Bearing industry:SNGN120712 BN-S20,RNGN090300BN-S200 and so on.

4. Other spare parts such as machining field after mold quenching.PCBN inserts hard turnin g hardened materials knowledge Brief:

Currently, PCBN inserts by Non-ferrous metal working fields, is the highest abrasion resistant tool material.PCBN inserts(CBN inserts) life is generally several times than carbide inserts and ceramic inserts.

With the development of research, PCBN inserts (cubic boron nitride inserts) to adapt to complex high hardness materials processing.BN-K10 can be processed of tungsten carbide more than HRC70. But PCBN inserts relate to the carbide material inserts. Aiming at hard and brittle weakness of CBN inserts. For example BN-S20 CBN inserts, it can not only interrupted turning hardened steel, may be a large margin resection hardened layer of the workpiece, but the premise is not at the expense of the cutting tool wear, and this is the biggest difference with PCBN cutting tool on the market.

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