MITSUBISHI MATERIALS CORPORATION
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COATED CBN SERIES

BC8020 / MBC010 / MBC020
FEATURES

With the expansion of BC8020, Mitsubishi can offer 3 coated CBN grades for machining of hardened steels. These 3 coated CBN grades cover a wide range of applications.

To achieve longer tool life, Mitsubishi uses a unique "Particle-activated Sintering Method", combined with increased cutting edge strength. With high crater wear resistance CBN grades and a wear resistant ceramic coatings, longer tool life and improved machine effi ciency are obtained.

FEATURES

Grade Grade Features and Application Main Component Coating Layer
newBC8020 High effi ciency coated CBN
Increased cutting edge strength and high crater wear resistant CBN grade in combination with a highly wear resistant TiAlN coating, results in longer tool life and improved machining effi ciency under heavy duty or interrupting cutting.
CBN
(Medium Grain) TiN
Al2O3
TiAlN
MBC010 Coated CBN for High Speed Continuous Cutting
MBC010 makes the best use of a special ceramic binder structure, actualizing high wear resistance. High wear resistance enables continuous machining at high speeds of over 300m/min.
CBN
(Micro Grain)
TiN
Al2O3
TiN
MBC020 Coated CBN for general cutting (First recommendation)
Uses a CBN substrate that has high cutting edge rigidity. The TiAlN based coating delivers superb wear resistance. CBN grade first recommendation.
CBN
(Micro Grain)
TiN
Al2O3
TiAlN
CUTTING PERFORMANCE
Continuous Cutting
Continuous Cutting
<Cutting Conditions>
Workpiece:
Alloy steel (60HRC)
External Continuous Cutting
 
Insert:
NP-CNGA120408GA
Feed:
0.1mm/rev
Depth of Cut:
0.1mm
Wet Cutting
 
Interrupted Cutting
Interrupted Cutting
<Cutting Conditions>
Workpiece:
Alloy steel (60HRC)
External Interrupted Cutting 8 Groove
 
Insert:
NP-CNGA120408GA
Cutting Speed:
150m/min
Feed:
0.15mm/rev
Depth of Cut:
0.2mm
Dry Cutting


newBC8020
BC8020
WEAR RESISTANCE
WEAR RESISTANCE

<Cutting Conditions>
Workpiece
Alloy steel (60HRC)
Insert
NP-CNGA120408GA
Cutting Speed
150m/min
Feed
0.15mm/rev
Depth of Cut
0.5mm
Wet Continuous Cutting


INTERRUPTED CUTTING (CRATER WEAR)
FRACTURE RESISTANCE
INTERRUPTED CUTTING (CHIPPING)
FRACTURE RESISTANCE
BC8020
exhibits excellent cutting performance for severe or interrupted machining.
MBC010
MBC010
WEAR RESISTANCE
<Cutting Conditions>
Workpiece
Alloy steel (60HRC)
Insert
NP-CNGA120408GS2
Cutting Speed
300m/min
Feed
0.1mm/rev
Depth of Cut
0.1mm
Dry Continuous Cutting

WEAR RESISTANCE
<Cutting Conditions>
Workpiece
Alloy steel (60HRC)
Insert
NP-CNGA120408GS2
Cutting Speed
150m/min
Feed
0.15mm/rev
Depth of Cut
0.2mm
Dry Continuous Cutting
 

MBC010
employs TiN based coating for superior, consistent surface finishes.
MBC020
MBC020
WEAR RESISTANCE
<Cutting Conditions>
Workpiece
Alloy steel (60HRC)
8 Grooves
Insert
NP-CNGA120408GA4
Cutting speed
200m/min
Feed
0.1mm/rev
Depth of Cut
0.1mm
Dry Interrupted Cutting
 
WEAR RESISTANCE
<Cutting Conditions>
Workpiece
Alloy steel (60HRC)
Round bar
Insert
NP-CNGA120408GA4
Cutting speed
220m/min
Feed
0.1mm/rev
Depth of Cut
0.1mm
Dry Continuous Cutting
 


MBC010
exhibits excellent cutting performance for a wide range of applications from continuous through to interrupted machining.