Mitsubishi DNMG150408-GH UC5115 Carbide Insert | Genuine MMC Japan
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DNMG150408-GH UC5115
Mitsubishi Materials | Heavy-Duty Cast Iron Turning Specialist
The Mitsubishi DNMG150408-GH UC5115 is a high-strength 55° rhombic negative turning insert specifically engineered for heavy-duty machining of Cast Iron (K-category). Combining the wear-resistant UC5115 CVD grade with the robust GH chipbreaker, this insert is designed to withstand the abrasive nature of gray and ductile iron during heavy-interrupted cuts or high-depth-of-cut operations.
Technical Specifications
| ISO Designation (Metric) | DNMG150408-GH |
|---|---|
| ANSI Designation (Inch) | DNMG 432-GH |
| Grade Material | UC5115 (CVD Coated Al2O3+TiCN) |
| Thickness | 4.76 mm (3/16") |
UC5115 Grade Technology
The UC5115 grade is Mitsubishi's premium solution for cast iron turning. Its thick Alumina coating acts as a thermal shield, preventing crater wear and maintaining cutting edge integrity even at high surface speeds ($v_c$). It is the industry standard for high-stability Gray and Nodular Cast Iron (GCI/NCI) processing.
GH Chipbreaker Geometry
The GH (Heavy-duty) chipbreaker is designed with a high land angle and robust edge preparation. This geometry is optimized for heavy cutting and roughing, where edge strength is critical to prevent chipping when encountering casting scales or interruptions.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed ($v_c$) | Feed Rate ($f$) |
|---|---|---|
| Gray Cast Iron (GCI) | 150 - 350 m/min | 0.25 - 0.55 mm/rev |
| Ductile/Nodular Iron (FCD) | 120 - 250 m/min | 0.20 - 0.45 mm/rev |
COMPATIBLE CNC TOOLING
Pairs perfectly with 15-size ISO tool holders: DDJNR/L, DDNNN, or DDUNR/L.
VIEW TURNING TOOL HOLDERS →Metric vs. Inch Cross-Reference
| Feature | ISO (Metric): DNMG150408 | ANSI (Inch): DNMG 432 |
|---|---|---|
| Inscribed Circle (IC) | 12.7 mm | 1/2" |
| Thickness (S1) | 4.76 mm | 3/16" |
| Corner Radius (RE) | 0.8 mm | 1/32" |