Mitsubishi VNMG160408 UC5115 Carbide Turning Insert | VNMG 332
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Mitsubishi VNMG160408 UC5115
Professional CVD Carbide Grade for High-Stability Cast Iron Turning
The Mitsubishi VNMG160408 UC5115 is a high-performance 35° rhombic negative-type carbide turning insert. Engineered specifically for high-speed machining of cast iron, the UC5115 grade provides exceptional abrasive wear resistance and thermal stability. Known globally as the VNMG 332 ANSI equivalent, it is the premier choice for machining gray cast iron (FC) and ductile cast iron (FCD) in high-production CNC environments.
Model Nomenclature Breakdown
Decoding the precision engineering behind the VNMG160408 identification code:
| Code | Detailed Specification |
|---|---|
| V | Shape: 35° Rhombic (Diamond) |
| N | Clearance Angle: 0° (Negative Insert) |
| M | Tolerance Class: Medium Precision |
| G | Feature: Double-Sided with Hole |
| 16 | Size: ~16mm Cutting Edge Length |
| 04 | Thickness: 4.76mm |
| 08 | Nose Radius: 0.8mm (Medium Roughing/Finishing) |
Global Standards: Metric vs. Imperial
This long-life turning tool is standardized for global CNC machining centers:
- ISO (Metric): VNMG160408
- ANSI (Imperial): VNMG 332
UC5115 Grade & Coating Technology
UC5115 Grade: This is a specialized CVD coated carbide grade designed for the ISO K-group. It features a high-hardness substrate and a thick Al2O3 coating layer that acts as a heat shield, preventing plastic deformation and abrasive wear common in high-speed cast iron turning.
Geometric Edge Strength: The VNMG negative geometry combined with the UC5115 grade offers superior edge toughness. This prevents chipping during interrupted cuts on cast surfaces, ensuring a consistent high surface finish across large batches.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Gray Cast Iron (K10-K20) | 200 - 500 m/min | 0.15 - 0.50 mm/rev | 1.0 - 4.5 mm |
| Ductile Cast Iron (K10-K20) | 150 - 350 m/min | 0.15 - 0.45 mm/rev | 1.0 - 4.0 mm |
System Optimization
For maximum high-speed stability, pair this VNMG 332 insert with our premium high-rigidity tool holders.
Shop Compatible DVJNR/L Tool HoldersPro-Tip: Grade Selection Guide
UC5115 is optimized for maximum abrasive wear resistance in cast iron. For applications involving heavy interrupted roughing, consider the tougher UC5105. If you are machining steel, switch to UE6110 or MC6025 for best results.
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.