Mitsubishi CNMG160616-GH UC5115 Cast Iron Roughing Insert (10pcs)
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CNMG160616-GH UC5115
The Cast Iron Heavyweight | UC5115 High-Speed CVD | GH Heavy Duty Geometry
Optimized for Abrasive Cast Iron Machining
UC5115 Grade (The Wear Specialist): The UC5115 is a specialized CVD-coated grade designed specifically for K-Class (Cast Iron). Cast iron is inherently abrasive, which rapidly dulls standard inserts. UC5115 features a thick, heat-resistant alumina ($Al_2O_3$) layer that maintains edge hardness even at high cutting temperatures, allowing for significantly higher cutting speeds and extended tool life.
GH Chipbreaker (Heavy Roughing Power): The GH geometry is Mitsubishi's strongest chipbreaker for CNMG inserts. It features a wide, reinforced land and a negative rake angle at the very edge to resist crater wear and mechanical shock. This is the "beast mode" geometry for removing massive amounts of material from rough castings.
1.6mm (1/16") Reinforced Radius: The large 16-radius is built for maximum feed rates and edge durability. It effectively dissipates heat and spreads the cutting pressure across a wider area, preventing the catastrophic tip failure common when roughing uneven casting surfaces.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CNMG160616-GH | 15.875 mm | 6.35 mm | 1.60 mm |
| Imperial | CNMG544-GH | 5/8" | 1/4" | 0.063" (1/16") |
Heavy Roughing Cutting Parameters
*The UC5115 grade excels in dry or wet cutting. For Grey Cast Iron, dry cutting is often preferred to prevent thermal shock.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Grey Cast Iron (HT250/GG25) | 150 - 350 m/min | 0.30 - 0.70 mm/r | 2.00 - 8.00 mm |
| Ductile Cast Iron (QT450/GGG40) | 120 - 280 m/min | 0.25 - 0.60 mm/r | 2.00 - 6.00 mm |
Compatible Heavy-Duty Holders
Maximum clamping force is required. Fits DCLNR/L 16 and MCLNR/L 16 (Metric 2525 or 3232) series holders:
Shop DCLNR 16 HoldersPro-Tip: UC5115 vs. UC5105
UC5115 (The Tough Workhorse): This grade is the standard for cast iron roughing. It handles interruptions and varying depths of cut better than UC5105.
UC5105 (The High-Speed Finisher): Switch to UC5105 only for continuous, ultra-high-speed turning in stable Grey Cast Iron applications to achieve maximum wear resistance.
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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.