Cast Iron Turning grade
Excellent abrasive wear resistance combined with great impact toughness and capacity, suitable for processing cast iron type material.
BKN115P: Suitable for processing cast iron from semi-finish to finish.
BKC120P: A newly developed TiAlN coating, suitable for semi-finish to finish ductile cast iron applications.
- Feature
- Application
- Application case
PCBN
K type Cast Iron Turning grade
| ISO | Grade | Grade
Color |
Grade Microstructure | Grade Feature |
| K | BKN115P | Uncoated |  |
•Uncoated grade with high hardness has excellent wear resistance.
•Recommended for finishing of grey cast irons and valve seat machining. |
| BKC120P | Purplish
grey |
 |
•Outstanding PVD coating can reduce the friction between
cutting edge and workpiece, which improves the wear resistance dramatically. •Recommended for finishing of nodular cast irons. |
PCBN
K type Cast Iron Turning grade
| ISO | K | Workpiece Material | Cast Iron | Hardness | HB180~300 | |
| Product Serise | Appli-cation | Grade | Cutting Range | Min-Optimum-Max | ||
| Vc(m/min) | ap(mm) | f(mm/rev) | ||||
| Brazed | Continuous~ intermittent
（Alloy Cast Iron） |
BKN115P | Finishing | 600-800-1500 | 0.05-0.10-0.30 | 0.05-0.10-0.20 |
| Semi-Finishing | 400-600-1000 | 0.15-0.25-0.50 | 0.05-0.20-0.40 | |||
| Continuous~ intermittent
（Nodular Cast Iron） |
BKC120P | Finishing | 250-350-500 | 0.10-0.10-0.50 | 0.05-0.10-0.30 | |
| Semi-Finishing | 150-250-400 | 0.15-0.25-0.50 | 0.05-0.20-0.40 | |||
Case: Machining of reducer housing
| Specification | VBGW160408L-2 |
| Grade | BKN115P |
| Material | HT250（HB220） |
| Cutting speed | Vc=427m/min |
| Feed rate | fr =0.08mm/r |
| Cutting depth | ap=0.3mm |
| Cooling method | Dry cutting |
| Cutting method | Continuous precision turning of inner holes（D160） |
