Mitsubishi CNMG120416-MA UE6020 Carbide Insert for Heavy Steel Roughing
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CNMG120416-MA UE6020
Extreme Roughing Titan | UE6020 CVD Grade | 1.6mm Reinforced Radius
Engineered for Maximum Feed & Impact
UE6020 Grade (CVD Coating Mastery): The UE6020 is a specialized CVD-coated grade optimized for P-Class (Steel). It features a multi-layer structure of TiCN and Alumina (Al2O3) that provides a superior thermal barrier. This prevents the cutting edge from softening during the high-heat generation associated with deep depths of cut in carbon and alloy steels.
MA Chipbreaker (Heavy-Medium Versatility): The MA geometry is Mitsubishi's legendary general-purpose chipbreaker. On this 1.6mm radius platform, it is optimized to direct chips away from the workpiece at high volumes, preventing chip re-cutting and surface damage even when the feed rate is significantly increased.
1.6mm (1/16") Reinforced Radius: This is the strongest corner radius available for the 1204 series. It is purpose-built to survive heavy interruptions and high-vibration environments. The large radius also helps in dissipating heat across a wider area, drastically increasing tool life during continuous heavy roughing.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CNMG120416-MA | 12.7 mm | 4.76 mm | 1.60 mm |
| Imperial | CNMG434-MA | 1/2" | 3/16" | 0.063" (1/16") |
Recommended Roughing Parameters
*Note: The 1.6mm radius creates higher radial pressure. Ensure your tool holder and machine have high rigidity.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Low Carbon Steel (A36/1020) | 150 - 350 m/min | 0.30 - 0.75 mm/r | 1.60 - 6.00 mm |
| Alloy Steel (4140/4340) | 120 - 280 m/min | 0.25 - 0.60 mm/r | 1.60 - 5.00 mm |
Compatible Tool Holders
Maximum performance with DCLNR/L 12 and MCLNR/L 12 double-clamp holders:
Shop DCLNR 12 HoldersPro-Tip: When to choose the 1.6mm Radius?
CNMG120416 (The Beast): Choose this when your priority is Edge Security and High Productivity. If you are breaking 1.2mm radius inserts or need a stronger edge for raw casting skins, this is your solution.
Surface Finish Note: Due to the large radius, this insert will produce a "wiper-like" effect on finishing passes, but requires higher feed rates to prevent "rubbing" and vibration.
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