MITSUBISHI MATERIALS CORPORATION
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 NON-COATED CBN SERIES

FEATURES
HARDNED STEEL MACHINING
Grade Grade Features and Application Main Component
MB8025 General Purpose Turning
By employing a "Particle-activated Sintering Method", the new sintered CBN technology is recommended for continuous cutting from medium to high speeds.
CBN(Micro Grain)
TiN
Al2O3
MB810 For High Speed Continuous Cutting
It features improved wear resistance due to impregnation with larger CBN particles.
CBN
TiN
Al2O3
MB820 For Continuous to Light Interrupted Cutting
Grade designed for superior thermal conductivity and crater wear resistance.
CBN
TiN
Al2O3
MB825 For Continuous to Medium Interrupted Cutting
Excellent balance of wear resistance and fracture resistance due to introduction of micro-grain CBN particles.
CBN(Micro Grain)
TiC
Al2O3
MB835 For Heavy Interrupted Cutting
Improved grade employing micro-grain CBN particles. Excellent fracture resistance for use in heavy interrupted cutting.
CBN(Micro Grain)
TiN
Al2O3

CUTTING PERFORMANCE
Continuous Cutting

<Cutting Condition>
Workpiece : Alloy steel (60HRC)
Feed : .004inch/rev
Depth of Cut : .0039inch
Wet Cutting

Interrupted Cutting
<Cutting Condition>
Workpiece : Alloy steel (60HRC)
External Interrupted Cutting 8 Groove
Cutting Speed : 490SFM
Feed : .004inch/rev
Depth of Cut : .0078inch
Dry Cutting


CAST IRON MACHINING
Grade Grade Features and Application Main Component
MB710 For General Cutting
General purpose grade with well balanced wear and fracture resistance.
CBN
TiC
Al2O3
MB730 For High Speed Cutting
Has the larger CBN content and therefore displays good thermal conductivity. It is suitable for the high temperatures that are generated in high speed cutting.
CBN
(High Content)
Co Base Alloy
MB5140 For High Speed Cutting and Roughing of Cast Iron
Highest CBN content, high thermal conductivity.
Enables deep depth of cut.
CBN
(Solid)

CUTTING PERFORMANCE
Continuous Cutting
<Cutting Condition of MB710>
Workpiece : AISI-35
Insert : TNGA332
Feed : .004inch/rev
Depth of Cut : .0059inch
Wet Cutting

<Cutting Condition of Caramics >
Workpiece : AISI-35
Insert : TNGA332
Feed : .004inch/rev
Depth of Cut : .0039inch
Dry Cutting