Mitsubishi DCMT070204 UC5115 Carbide Turning Insert for Cast Iron (10pcs)
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DCMT070204 UC5115
Cast Iron Specialist | UC5115 Wear-Resistant CVD | 55° Diamond
High-Performance Turning in Cast Materials
UC5115 Grade (CVD Wear-Resistance): The UC5115 is Mitsubishi's premium grade for turning gray and ductile cast iron. It features a specialized thick Al2O3 (Alumina) coating that provides an incredible thermal barrier and high hardness. This allows the insert to withstand the abrasive nature of cast iron at high cutting speeds without losing its sharp edge.
DCMT Geometry (Positive Rake): The 55-degree diamond shape with a 7-degree relief angle is highly versatile. It reduces cutting forces, which is essential when machining cast iron to prevent "break-out" at the end of the cut and to maintain high surface integrity.
0.4mm Radius (Precision Finishing): The "04" radius is the standard for high-precision finishing. It minimizes radial pressure, ensuring stability in small boring bars and fine-profiling operations.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | DCMT070204 | 6.35 mm | 2.38 mm | 0.40 mm |
| Imperial | DCMT21.51 | 1/4" | 3/32" | 0.0157" (1/64") |
Recommended Machining Parameters
*UC5115 is optimized for high-speed dry cutting or wet cutting in stable environments.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Gray Cast Iron (FC250/FC300) | 150 - 350 m/min | 0.08 - 0.25 mm/r | 0.30 - 2.00 mm |
| Ductile Iron (FCD450/600) | 120 - 280 m/min | 0.08 - 0.20 mm/r | 0.30 - 1.50 mm |
Compatible Tool Holders
Maximum performance when paired with SDJCR or SDUCR 07 holders:
Shop 07 Series HoldersPro-Tip: UC5115 vs. Steel Grades
UC5115 (Cast Iron Grade): Do not use this grade for steel or stainless steel. The coating and substrate are specifically designed to resist the abrasive graphite in cast iron.
US735 / NX2525: If you are machining steel, switch to US735 (Stainless/Toughness) or NX2525 (Cermet/Finish). Using UC5115 on steel will lead to rapid crater wear.
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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.