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- Technical Information
- Grade Profile
- Turning
- CBN(Cubic Boron Nitride)
 CBN(CUBIC BORON NITRIDE) |
Suitable for high speed finishing of heat treated steel,sintered ferrous alloy and cast iron. Low affinity to iron, thus good surface finishes are possible. Grinding can be replaced by machining. |
| SELECTION STANDARD |
| Heat Treated Steel |
| Work Material |  |
Cutting Mode |
Recommended Grade | Recommended Cutting Condition | |||
|---|---|---|---|---|---|---|---|
| Cutting Speed (SFM) | Feed (inch/rev) | Depth of Cut (inch) | |||||
| Structural Steel High Alloy Steel |
35–65 HRC |  |
High speed finish cutting | MBC010 | 820 (490－1210) | －.008 | －.008 |
| Continuous cutting for general purpose |  MBC020 |
655 (390－820) | －.020 | －.020 | |||
| Interrupted cutting for general purpose | 490 (230－655) | －.008 | －.012 | ||||
 |
Continuous cutting | MB8025 | 590 (390－820) | －.012 | －.020 | ||
| Light interrupted cutting | 390 (230－490) | －.008 | －.012 | ||||
| High speed finish cutting | MB810 | 655 (490－985) | －.006 | －.006 | |||
| Continuous to light interrupted cutting | MB820 | 390 (230－490) | －.012 | －.020 | |||
| Continuous to medium interrupted cutting | MB825 | 390 (230－490) | －.012 | －.020 | |||
| Heavy interrupted cutting |
MB835 | 330 (165－390) | －.012 | －.020 | |||
| Cast Iron |
| Work Material | Workpiece Structure |
Cutting Speed (SFM) | Feed (inch/rev) |
Depth of Cut (inch) | Coolant | |
|---|---|---|---|---|---|---|
|
||||||
| Gray Cast Iron | － |  |
－0.20 | －.039 MBS140 －.197 |
Dry,Wet | |
| Alloy Cast Iron | Pearlitic | －0.16 | －.020 | Dry,Wet | ||
| Ductile Cast Iron | FCD400 | Ferritic |  |
－0.16 | －.020 | Dry,Wet |
| FCD700 | Ferritic + Pearlitic Pearlitic | |||||
| Sintered Alloy |
| Work Material | Recommended Grade | Recommended Cutting Condition | ||
|---|---|---|---|---|
| Cutting Speed (SFM) | Feed (inch/rev) | Depth of Cut (inch) | ||
| High Hardness Iron and Sintered Metal | MB825,MB710,MB730 | 655 (490－820) | －.004 | .006 (.004－.008) |
| Sintered Forged Products | MB8025 | 490 (330－655) | －.004 | .006 (.004－.008) |
| Wear Resistant Parts | MB8025 | 390 (330－490) | －.004 | .006 (.004－.008) |
| Valve Seat |
| Amount of Hard Particles |  |
|||
|---|---|---|---|---|
| Hardness of Workpiece (HV) | 150 | 250 | 300 | 350 |
| Plunge Cut |  |
|||
| Traverse Cut |  |
|||
| Roll |
| Work Material | Grade | Recommended Cutting Condition | ||
|---|---|---|---|---|
| Cutting Speed (SFM) | Feed (inch/rev) | Depth of Cut (inch) | ||
| Cast Steel Adamite Cast Steel |
MB820 | 260 (100－425) | .012 (.004－.020) | .008－.118 |
| Ductile Cast Iron Granular Cast Iron Chilled Cast Iron |
MB710 | 260 (100－425) | .012 (.004－.020) | .008－.118 |
| High Chromium Steel High Alloy Steel |
MB820 | 260 (100－425) | .012 (.004－.020) | .008－.118 |
| High Speed Steel | MB730 | 165 (65－230) | .010 (.004－.020) | .004－.118 |
| Cemented Carbide | MB730, MBS140 | 65 (30－100) | －.020 | －.008 |
| Heat Resistant Alloy |
| Work Material | Grade | Recommended Cutting Condition | ||
|---|---|---|---|---|
| Cutting Speed (SFM) | Feed (inch/rev) | Depth of Cut (inch) | ||
| Ni Base Heat Resistant Alloy | MB730 | 390 (330－490) | －.008 | －.020 |
| Co Base Heat Resistant Alloy | MB730 | 230 (165－330) | －.008 | －.020 |
