Mitsubishi VNMG160412 UC5115 Carbide Turning Insert | VNMG 333
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Mitsubishi VNMG160412 UC5115
High-Stability CVD Carbide Grade for Heavy Cast Iron Turning
The Mitsubishi VNMG160412 UC5115 is a robust 35° rhombic negative-type carbide turning insert. Engineered specifically for the high-speed machining of cast iron, the UC5115 grade provides industry-leading abrasive wear resistance. This VNMG 333 ANSI equivalent features a larger 1.2mm nose radius, making it the premier choice for heavy finishing to medium roughing of gray cast iron (FC) and ductile cast iron (FCD).
Technical Nomenclature Breakdown
Decoding the precision behind the VNMG160412 identification code:
| Code | Detailed Specification |
|---|---|
| V | Shape: 35° Rhombic (Diamond) |
| N | Clearance Angle: 0° (Negative Insert) |
| M | Tolerance Class: Medium Precision Class |
| G | Feature: Double-Sided with Hole |
| 16 | Size: ~16mm Cutting Edge Length |
| 04 | Thickness: 4.76mm |
| 12 | Nose Radius: 1.2mm (Strong Edge for Heavy Cutting) |
Global Standards: Metric vs. Inch
This long-life cast iron turning tool is standardized for global CNC machining compatibility:
- ISO (Metric): VNMG160412
- ANSI (Imperial): VNMG 333
UC5115 Grade & Coating Technology
UC5115 CVD Grade: This grade is a specialized CVD coated carbide designed for the ISO K-group (Cast Iron). It features an exceptionally hard substrate and a thick Al2O3 coating layer which acts as a thermal barrier, preventing edge plastic deformation and abrasive wear during high-velocity cast iron machining.
Rugged Geometry: The 1.2mm nose radius provides excellent edge toughness, making the VNMG160412 highly resistant to chipping even when encountering sand inclusions or scaly surfaces on castings.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Gray Cast Iron (K10-K20) | 200 - 450 m/min | 0.20 - 0.55 mm/rev | 1.5 - 4.5 mm |
| Ductile Cast Iron (K10-K20) | 150 - 350 m/min | 0.20 - 0.50 mm/rev | 1.2 - 4.0 mm |
System Optimization
Ensure maximum stability for heavy cutting by pairing this VNMG 333 insert with our high-rigidity tool holders.
Shop Compatible DVJNR/L Tool HoldersPro-Tip: Grade Selection Guide
UC5115 is your first choice for high-speed cast iron turning. If your operation involves heavy interrupted cutting or extreme impact, consider the tougher MC5005 or UC5105 series. For steel turning, please switch to UE6110 or MC6025 grades to ensure chemical compatibility.
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.