Mitsubishi DCMT070204-MV UE6020 Carbide Turning Insert for Steel
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DCMT070204-MV UE6020
Steel Machining Powerhouse | UE6020 CVD Coating | MV Versatile Geometry
Engineered for High-Speed Steel Turning
UE6020 Grade (The Steel Expert): The UE6020 is a premier CVD-coated carbide grade specifically for P-Class (Steel) materials. It features a multi-layered coating that provides a hard exterior for wear resistance and a tough interior to prevent fracture. It excels in stable, continuous cutting where high surface speeds are required to meet production targets.
MV Chipbreaker (Medium-V Finishing): The MV geometry is Mitsubishi's most balanced chipbreaker. It provides a sharp cutting action to reduce heat buildup while maintaining enough edge strength for semi-finishing tasks. It effectively controls chips across a broad range of speeds, preventing "bird-nesting" during automated cycles.
0.4mm Radius (Industry Standard): The "04" (1/64") radius is the universal choice for finishing. It offers the ideal balance between surface roughness ($Ra$) and edge durability, making it perfect for the majority of precision steel turning applications.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | DCMT070204-MV | 6.35 mm | 2.38 mm | 0.40 mm |
| Imperial | DCMT21.51-MV | 1/4" | 3/32" | 0.0157" (1/64") |
Recommended Machining Parameters
*UE6020 is designed for high-speed stability. Optimal results are achieved in continuous cutting with flood coolant.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Mild Steel (1018/1020) | 150 - 350 m/min | 0.08 - 0.20 mm/r | 0.30 - 1.50 mm |
| Carbon Steel (1045) | 120 - 300 m/min | 0.07 - 0.18 mm/r | 0.25 - 1.20 mm |
Compatible Tool Holders
Achieve maximum precision with 07-series SDJCR/L or SDUCR/L holders:
Shop 07 Series HoldersPro-Tip: UE6020 vs. VP15TF
UE6020 (CVD): Best for high-speed efficiency in carbon steel. Choose this for long-run production where you need the tool to last as long as possible under heat.
VP15TF (PVD): Switch to VP15TF if you are machining small diameter parts or if you are switching between steel and stainless steel on the same machine.
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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.