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PCBN(Polycrystalline Cubic Boron Nitride)

PCBN is a polycrystal sintered from cubic boron nitride powder and binder under high temperature and pressure. There are two main types of binders: metal and ceramic.

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    PCBN

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    • TC145/TC145S

      Grain size

      Binder Material

      CBN Content

      HV(Gpa)

      1μm

      TiC

      40%-45%

      29-32

      For high-speed continuous cutting, its resistance to crescent depression wear is very outstanding in all products. TC145 is the finest of all products and can provide micron surface toughness.
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    • TN056/TN056S

      Grain size

      Binder Material

      CBN Content

      HV(Gpa)

      1μm

      TIN

      65%-70%

      30-32

      It has high wear resistance, good high temperature resistance and ideal for moderately and lightly interruped processing of hardened steel where high surface finishes is required.
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    • TN250/TN250S

      Grain size

      Binder Material

      CBN Content

      HV(Gpa)

      2μm

      TiN

      50%-55%

      30-32

      This product has good high temperature resistance and surface finish.
      Application: high-speed continuous and micro-intermittent quenched steel.
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    • TN260/TN260S

      Grain size

      Binder Material

      CBN Content

      HV(Gpa)

      2μm

      TiN

      60%-65%

      31-33

      This product is suitable for continuous and mild intermittent processing of hardened steel.
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    • TCN60/TCN60S

      Grain size

      Binder Material

      CBN Content

      HV(Gpa)

      2μm

      TiCN

      60%-65%

      33-35

      This product has both high wear resistance, good high temperature resistance and excellent workpiece surface finish.
      Application: continuous and weak intermittent processing of quenched steel, nodular cast iron and vermicular cast iron (tensile strength can be ≥ 400 for nodular cast iron).
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    • TC65/TC65S

      Grain size

      Binder Material

      CBN Content

      HV(Gpa)

      2μm

      TiC

      65%-70%

      32-34

      This product has both high wear resistance and good high temperature resistance, so it is very suitable for cold working tool steel and some valve seat alloys.
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    • TN470/TN470S

      Grain size

      Binder Material

      CBN Content

      HV(Gpa)

      4μm

      TiN

      70%-75%

      34-36

      Under the condition of high speed cutting, this product has excellent collapse resistance.
      Application: high-speed continuous-intermittent processing of quenched steel.
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    • TC80/TC80S

      Grain size

      Binder Material

      CBN Content

      HV(Gpa)

      4μm

      TiC

      ~80%

      34-37

      Application continuous and intermittent processing of ductile iron, vermicular cast iron and other difficult cast iron and powder metallurgy.
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    • BMN290

      Grain size

      Binder Material

      CBN Content

      HV(Gpa)

      2μm

      Cermet

      85%-90%

      33-35

      With high hardness and wear resistance, it can be used for high- speed and high-efficiency machining of gray cast iron and boron cast iron.
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    • C90

      Grain size

      Binder Material

      CBN Content

      HV(Gpa)

      2μm

      Metal

      85%-90%

      39-42

      Applications: for continuously cutting of cast iron and heavily interrupted turning of all common hardened steels.
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    • NM900

      Grain size

      Binder Material

      Content

      HV(Gpa)

      15μm

      Metal

      85%-90%

      35-38

      This product has high wear resistance and outstanding impact resistance.
      It is used for turning and milling gray cast iron and heavy turning of hardened steel.
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    • NL900

      Grain size

      Binder Material

      CBN Content

      HV(Gpa)

      10μm

      AIN

      90%-92%

      38-42

      This model is CBN polycrystal;
      It has high wear resistance, high temperature resistance;
      Application: turning and milling of quenched gray cast iron and hard cast iron, as well as heavy turning of quenched steel, including brake disc, pump body and other components.

    PCBN standard products series

    PCBN Composite Sheet Product Series with Cemented Carbide Layer

    Type

    CBN (mm)

    Layer Thinckness

    Total Thickness (mm)

    1.60

    2.00

    2.38

    3.18

    4.76

    TC145

    0.7~1.0

    TN056

    0.7~1.0

    TN25C

    0.7~1.0

    TN260

    0.7~1.0

    TCN60

    0.7~1.0

    TC65

    0.7~1.0

    TN470

    0.7~1.0

    TC80

    0.7~1.0

    BMN290

    0.7~1.0

    NM900

    0.7~1.0

    C90

    0.7~1.0

    Note: Other sizes and styles can be customized according to customer's request.

    PCBN   Overall   Product   Series

    Type

    Total Thickness (mm)

    1.20

    1.60

    3.30

    4.90

    TC145S

    TN056S

    [N25 S

    TN260S

    「CN60S

    TC65S

    TN470S

    TC80S

    NL900

    Note: Other sizes and styles can be customized according to customer's request.

    PCBN

    PCBN is a special class of super-hard material which is chemically inert and temperature resistant. It is well-know that PCD diamond cannot be used to machine ferrous alloys because it will chemically react and quickly wear.
    However, PCBN is well-suited for such ferrous-metal applications. PCBN is ideal for tools used to machine hard ferrous metal items such as: gear steel, bearing steel, cast iron, powder metallurgy material, etc. PCBN is typically used to machine brake discs, engineer blocks, engineer cylinder liners, brake drums, flywheels, walue seats and guides, gears, mold and dies parts etc. Suitable for making PCBN turning, and cutting tools.

    PCBN Applications

    Case one
    • Work materials-Gcr15
      Hrc 58-62
      Cutting length=2000m
      Vc=150/min
      f=0.12mm/rev
      ap=0.1mm
      Dry
      Insert   CNGA120408-2N
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    Case two
    • Work materials-Gcr15
      Hrc 58-62
      Cutting length=2000m
      Vc=150/min
      f=0.12mm/rev
      ap=0.1mm
      Dry
      Insert CNGA120408-2N
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