B6K/B36For light to medium interrupted machining ｜ CBN for machining hardened material

High performance, low cost CBN

Recommended for semi-interrupted cuts

Versatile CBN designed for machining hardened materials at 55 HRC or above with light to medium interruptions

Product video

Features

  • CBN with a special TiCN binder achieves a combination of wear resistance and fracture resistance
  • Stable performance through light to medium interrupted machining
  • B6K (coated CBN):
    A special hard TiCN layer prevents a chemical reaction between the CBN and the iron in the work piece during material removal
    B36 (uncoated CBN):
    Ideal for machining the hardened material layer

Tooling application

Light to medium interrupted machining of hardened materials of HRC55 or above

Grade application chart

Cutting conditions

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Grade Material Operation type Machining Cutting speed (m/min) Feed(mm/rev) DOC(mm) DRY WET
B6K/B36 Hardened material (HRC55 or above) Turning Light to medium interrupted machining Finishing 40 - 240 ~ 0.15 0.1 - 1.0 ● ●

Edge preparations

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Performance comparison by edge preparation

As the edge preparation increases the tool pressure on the insert increases.
[ Cutting conditions ]
SCM415(HRC63-65)  vc=200m/min  f=0.1mm/rev  ap=0.2mm  DRY
[ Insert ]
TNGA160408
There is a direct correlation between an increase in the edge preparation and improvement of insert fracture resistance.
[ Cutting conditions ]
SCM415(HRC63-65)  vc=75m/min  f=0.1mm/rev  ap=0.3mm  DRY
[ Insert ]
TNGA160408

Case study

Interrupted OD turning of machine parts
Material :
Carbon steel - quenched(HRC50)
Front turning Heavy interruption
Cutting speed :
210～220 m/min
Feed :
0.08 mm/rev
DOC :
0.20 mm
Coolant :
WET
B6K

700 pcs / corner
Conventional tool

400 pcs / corner
Interrupted OD turning of automotive parts Steel - carburized & quenched
Material :
SCM415 carburized
Front turning Heavy interruption
Cutting speed :
75 m/min
Feed :
0.27 mm/rev
DOC :
0.8 mm
Coolant :
DRY
B6K

400 pcs / corner
Conventional tool

150 pcs / corner

Tool lineup

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Please check product catalog for tooling lineup

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