Description
Introduction:
The LN Kr90° milling insert represents an advanced carbide cutting solution engineered for high-performance metalworking and precision milling applications. Manufactured from ultra-fine grain carbide with optimized cobalt binder content, it delivers exceptional wear resistance, fracture toughness, and thermal stability, sustaining dimensional accuracy under high-speed, heavy-duty, and interrupted cuts. Its 90° approach angle strategically aligns cutting forces, minimizing radial deflection, chatter, and thermal deformation, while ensuring superior surface integrity across ferrous, stainless, hardened steels, nickel-based superalloys, and titanium alloys. The micro-geometry of each cutting edge—comprising honed edges, positive rake angles, and optimized corner radii—reduces specific cutting energy, enhances chip evacuation, and prolongs tool life, making it suitable for both roughing and finishing operations. The three-edge indexing design maximizes blade utilization, balancing operational economy with consistent surface finish and tolerance adherence. LN Kr90° embodies cutting-edge materials science, precision edge engineering, and dynamic load management, delivering unmatched reliability for expert machinists in complex, precision-driven milling tasks.
- Triple-Edge Load Distribution
The proprietary triple-edge configuration distributes cutting forces uniformly across all edges, mitigating localized stress concentrations and enhancing insert longevity. This optimized geometry ensures repeatable dimensional accuracy under both continuous and intermittent cutting conditions.
- Ultra-Fine Surface Conditioning
The substrate undergoes sub-micron polishing combined with engineered micro-texturing, drastically minimizing built-up edge (BUE) formation and reducing frictional heat. This enables exceptional surface finishes, even at elevated cutting speeds, while maintaining edge integrity.
- Multi-Layer PVD/CVD Coating Architecture
LN Kr 90° inserts employ multi-layer Physical Vapor Deposition (PVD) or Chemical Vapor Deposition (CVD) coatings with gradient hardness and superior adhesion. These coatings exhibit outstanding thermal stability, oxidation resistance, and wear mitigation, facilitating high-speed milling of stainless steels, titanium alloys, and other difficult-to-machine materials.
- Precision Chipbreaker Engineering
The dedicated chipbreaker geometry promotes controlled, segmented chip formation, attenuating vibrations and dissipating thermal loads. This is particularly critical in roughing, high-feed, or interrupted cuts, improving tool reliability and surface integrity.
- Corner Radius Optimization
The 90° cutting edge combined with engineered corner radii enhances edge strength and stability under high feed rates. This geometry minimizes chipping risk during heavy-duty milling operations, providing robust performance in complex 3D milling applications.
- Microstructural Substrate Engineering
Advanced tungsten carbide substrates are microstructurally optimized to balance fracture toughness and hardness, reducing flank wear and chipping under extreme milling loads. The result is consistent performance, longer tool life, and enhanced process stability.
Main technical parameters:
| Type | INSL | S | W1 |
BS |
| LN_1005_ | 10.00 | 9.65 | 5.50 |
– |
| LN_1407_ | 14.00 | 13.20 | 7.50 |
– |
|
Type |
RE | Cutting Parameters | |
|
ap(mm) |
fz(mm/z) |
||
|
LNGX100504-GM |
0.4 | 1.00-9.00 | 0.13-0.25 |
|
LNGX100508-GM |
0.8 | 1.20-9.00 | 0.13-0.25 |
|
LNGX100512-GM |
1.2 | 1.60-9.00 | 0.13-0.25 |
|
LNGX100516-GM |
1.6 | 2.00-9.00 |
0.13-0.25 |
| LNGX100520-GM | 2.0 | 2.40-9.00 |
0.13-0.25 |
| LNGX100524-GM | 2.4 | 2.80-9.00 |
0.13-0.25 |
| LNGX100530-GM | 3.0 | 3.40-9.00 |
0.13-0.25 |
| LNGX100540-GM | 4.0 | 4.40-9.00 |
0.13-0.25 |
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