SumiBoron is a polycrystalline cubic boron nitride cutting tool material that is comprised of a PCBN layer and cemented tungsten carbide substrate. Unlike diamond, CBN is stable under conditions of high temperature up to 1000 ° C normally seen when machining hardened ferrous, superalloy or nodular iron materials.
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SumiBORON ® PCBN Blanks
BNX20
BNX10
BN250
BN305
BN500
BNX25
BN700
Grade
CBN Content % CBN Crystal Size (Microns A.P.S.) Primary Binder Material Vickers Hardness (Hv)
60
60
60
65
65
90-95
50
1
1
3
4
3
2
4
Titanium Nitride
Titanium Nitride
Titanium Nitride
Titanium Nitride
Titanium Nitride
Co based alloy
Titanium Nitride
3200-3400
3300
3200-3400
3500-3800
2900-3100
4000-4300
2800-3000
TRS Value (kg. / mm²)
105
125
105
105
105
125
85
· High speed continuous hardened steel finish
· Light & medium interrupted hardened steel
· Severely interrupted hardened steel
· High speed machining of bearing steel (ex. 8620)
· High speed continuous and interrupted · Wet/dry hardened steel
· Powdered metal · Ni/Co based superalloy · Ni-hard iron
· Nodular iron · Gray cast iron · Alloyed iron
Recommended for machining
SumiDIA ® DA Blanks
Grade
DA2200
DA150
DA90
0.5
5
50
Average Diamond Vickers Hardness T.R.S. (kg./mm²)
9,000-10,000
10,000-12,000
10,000-12,000
250
200
110
High Density Ultra-Fine Grain Diamond · High degree of toughness and superior wear resistance Recommended for Cutting: · Plastics · Wood · Aluminum and copper · High and low silicon aluminum
Fine Grain Diamond
Coarse Grain Diamond
Product Description
· High abrasion resistance · Excellent tool edge sharpness
· Ultra high abrasion resistance
Machining Applications · Turning
Recommended for Cutting: · High silicon aluminum · Graphite · Aluminum/gray iron bimetal · Ceramics · Tungsten carbide · Kevlar
Recommended for Cutting: · Low and medium silicon aluminum · Copper · Fiberglass · Carbon · Wood - plywood fliberboard and hardwoods
· Milling · Boring · Drilling · Sawing
Recommended Running Conditions
Material
Application Continuous
SFM
IPR
D.O.C First Choice
Second Choice
300-700 0.004-0.006 0.020" 300-700 0.004-0.006 0.020"
BNX10 BN250
Induction Hardened Steel Induction Hardened Steel Carburized Hardened Steel/ Bearing Steel Die Steel High Speed Steel Die Steel High Speed Steel Gray Cast Iron Carburized Hardened Steel/ Bearing Steel
BNX20
Interuption (Dry)
BNX25/BN305
BNX20
BNX10
Continuous
250-600 0.004-0.006 0.020"
BN250
Interuption (Dry)
0.020" 0.020" 0.020" 0.040"
BNX25/BN305
0.004-0.006 0.004-0.006 0.004-0.006 0.004-0.006
300-600
150-500 150-350 800-2300
BN250 BNX20
Continuous
BNX25/BN305 BNX10 BN700
Interuption (Dry) Continuous & Interupted Continuous & Interupted Continuous & Interupted Continuous & Interupted Continuous & Interupted
BN500
BN500
500-1500
0.004-0.006
0.040"
BN700
Nodular Cast Iron
BN500
0.040"
0.004-0.006
300-900
BN700
Ductile Iron
BN700
0.040"
0.004-0.006
400-1000
Powdered Metals
-
100-300
Chilled Cast Iron
BN250
0.040"
0.004-0.006
BN700
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