Mitsubishi DNMG150404-MA UE6020 Carbide Steel Turning Insert
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DNMG150404-MA UE6020
Steel Mastery | UE6020 CVD Technology | MA Precise Chip Control
Optimized for Industrial Steel Turning
UE6020 Grade (CVD Coating): The UE6020 is a high-toughness CVD-coated carbide grade designed for stable to general machining of steel. It features a specialized coating layer that provides superior resistance to crater wear and plastic deformation, making it ideal for high-speed, continuous cutting of Carbon Steel, Alloy Steel, and Tool Steel.
MA Chipbreaker (Medium Cut): The MA geometry is one of Mitsubishi's most versatile "M-Class" chipbreakers. It is engineered to maintain low cutting resistance while effectively curling and breaking chips across a wide range of feed rates. This prevents "nesting" and ensures a high-quality surface finish.
0.4mm Radius (The Finishing Precision): The "04" (1/64") nose radius is the standard for high-precision finishing. It minimizes radial cutting forces, which is essential for maintaining dimensional accuracy and achieving superior Ra values on CNC turned parts.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | DNMG150404-MA | 12.70 mm | 4.76 mm | 0.40 mm |
| Imperial | DNMG431-MA | 1/2" | 3/16" | 0.0157" (1/64") |
Recommended Machining Parameters
*UE6020 excels in high-speed applications. Use ample coolant to maximize tool life in alloy steels.
| Material Group | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Carbon Steel (S45C) | 180 - 350 m/min | 0.10 - 0.25 mm/r | 0.50 - 3.00 mm |
| Alloy Steel (SCM440) | 150 - 300 m/min | 0.10 - 0.20 mm/r | 0.50 - 2.50 mm |
Compatible Tool Holders
Maximum performance with 15-series DDJNR/L or DDUNR/L holders:
Shop DDJNR 15 HoldersPro-Tip: UE6020 vs. VP15TF
UE6020 (The Steel Master): The absolute first choice for continuous turning of carbon and alloy steels. It provides better tool life at higher speeds than PVD grades.
VP15TF (The Multi-Material Expert): Switch to VP15TF only if you are machining stainless steel or encounter heavily interrupted cuts. For stable steel turning, UE6020 will significantly outperform in terms of pieces-per-edge.
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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.