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" |
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.