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CBN Speeds and Feeds

CBN Machining Parameters


Typical Machining Parameters using DR-50/450 Tool CBN Inserts

Workpiece Material
Approximate Hardness (HRc)
Speed (m/min)
Feed (mm/rev)
Typical Depth of Cut (mm)
Coldwork Tool Steels
60
60 - 200
0.05 - 0.2
0.01 - 0.5
High Speed Steels
62
60 - 120
0.06 - 0.2
0.01 - 0.5
Bearing Steels
60
60 - 180
0.05 - 0.2
0.01 - 0.5
Hot Work Die Steels
50
150 - 250
0.06 - 0.2
0.01 - 0.5
Surface Hardened Parts
62
60 - 250
0.02 - 0.2
0.01 - 0.5
Cast Iron (Fully Pearlitic)
-
400+
0.02 - 0.2
0.01 - 0.5



Typical Machining Parameters using DR-80/85 Tool CBN Inserts

Workpiece Material
Approximate Hardness (HRc)
Speed (m/min)
Feed (mm/rev)
Typical Depth of Cut (mm)
NI - Hard Cast Iron
58
50 - 100
2.5
< 0.3
White/Chill Cast Iron
55
60 - 100
2
< 0.4
High Speed Steel
62
60 - 120
2
< 0.2
Coldwork Tool Steel
60
80 - 180
2
< 0.25
NI - Chrome Irons
58
55
2
< 0.3
Sintered Irons (Powdered Metal)
200 hb
300
0.5
< 0.1
Grey Cast Iron
22 hb
500 - 1000
0.5 - 2.0
< 0.1 - 0.4
Hard Facing Alloys - Cobalt Based
from 35
200 - 250
1
< 0.25
Hard Facing Alloys - Nickel Based
from 35
120 -250
1
< 0.2
Milling - Meehanite
55
300
1
< 0.5 (mm/tooth)
NI Hard
58
200
1
< 0.25



Typical Machining Parameters using DR-100 Tool Solid CBN Inserts

Workpiece Material
Approximate Hardness (HRc)
Speed (m/min)
Feed (mm/rev)
Typical Depth of Cut (mm)
NI - Hard Cast Iron
58
50 - 100
2.5
< 0.3
White/Chill Cast Iron
55
60 - 100
2
< 0.4
High Speed Steel
62
60 - 120
2
< 0.2
Coldwork Tool Steel
60
80 - 180
2
< 0.25
NI - Chrome Irons
58
55
2
< 0.3
Sintered Irons (Powdered Metal)
200 hb
300
0.5
< 0.1
Grey Cast Iron
22 hb
500 - 1000
0.5 - 2.0
< 0.1 - 0.4
Hard Facing Alloys - Cobalt Based
from 35
200 - 250
1
< 0.25
Hard Facing Alloys - Nickel Based
from 35
120 -250
1
< 0.2
Milling - Meehanite
55
300
1
< 0.5 (mm/tooth)
NI Hard
58
200
1
< 0.25