Mitsubishi CNMG120404 UC5115 CVD Carbide Turning Insert for Cast Iron
Price shown is a starting point. Contact us for a precise quote based on your requirements.
CNMG120404 UC5115
Precision Finishing Specialist | UC5115 CVD Grade | 0.4mm Radius
High-Speed Precision in Cast Iron
UC5115 Grade (CVD Coating): Optimized for the K-Class (Cast Iron) range, UC5115 features a thick Alumina layer that provides an exceptional thermal barrier. This prevents the heat generated by abrasive graphite flakes from reaching the carbide substrate, ensuring the insert maintains its shape and precision over long production runs.
CNMG Geometry & Chipbreaker: Unlike flat-top inserts, the CNMG geometry features a molded chipbreaker designed to manage chips at lower depths of cut. This is vital for finishing passes, as it prevents fine, hot chips from scratching the newly machined surface.
0.4mm (1/64") Radius: The small corner radius is specifically selected to reduce radial cutting forces. This is critical when machining thin-walled cast parts or using long-reach boring bars, as it prevents the chatter and vibration that ruin surface finishes.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CNMG120404 | 12.7 mm | 4.76 mm | 0.40 mm |
| Imperial | CNMG431 | 1/2" | 3/16" | 0.0157" (1/64") |
Recommended Cutting Parameters
*Optimized for finishing. High speeds are required to achieve the best surface finish with UC5115.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Gray Cast Iron (GG20/GG25) | 200 - 500 m/min | 0.05 - 0.20 mm/r | 0.20 - 1.50 mm |
| Ductile Iron (GGG50/GGG60) | 150 - 350 m/min | 0.08 - 0.25 mm/r | 0.20 - 1.20 mm |
Required Tool Holders
Maximum rigidity for DCLNR/L 12 and MCLNR/L 12 series holders:
Shop DCLNR 12 HoldersPro-Tip: UC5115 Grade Selection
UC5115: The ultimate general-purpose grade for all cast iron. It offers the shock resistance needed for ductile iron and the wear resistance for gray iron.
MC5015: If you are working exclusively with Gray Cast Iron at ultra-high production speeds, consider MC5015 for even higher abrasive resistance, but avoid it for interrupted cuts.
Search Keywords: CNMG120404 UC5115 price, Mitsubishi cast iron finishing inserts, CNMG431 carbide, UC5115 speed and feed cast iron, precision turning inserts for gray iron.
Long-tail Keywords: Best carbide inserts for vibration-free cast iron finishing, Mitsubishi UC5115 for high-speed ductile iron turning, CNMG 1204 series inserts for tight tolerances, buy Mitsubishi CNMG120404 online, 0.4mm radius precision carbide for CNC.
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.