Taegutec TNMG 160404 TT7015 CVD Insert for Cast Iron High-Speed Turning (10pcs)
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TaeguTec TNMG 160404 TT7015
High-Hardness CVD Grade for Superior Cast Iron Productivity
Product Overview
"Which insert is optimized for maximum wear resistance during high-speed continuous turning of abrasive cast iron components?"
The TaeguTec TNMG 160404 TT7015 is a powerhouse in ISO K (Cast Iron) machining. Engineered specifically for grey and ductile iron, the TT7015 grade utilizes a specialized CVD coating that acts as a fortress against the abrasive nature of iron castings. Featuring a 0.4mm (04) corner radius, this insert is designed for precision finishing where tight tolerances and sharp corners are required. The substrate is exceptionally rigid, preventing edge deformation even under the intense heat generated by high-speed CNC operations.
Key Performance Advantages
The TT7015 grade is optimized for the silicon-rich, abrasive environment of cast iron, significantly extending tool life.
Provides high-accuracy finishing and reduced cutting pressure, ideal for intricate geometries and thin-walled parts.
Maintains a sharp cutting edge at speeds where standard grades would fail due to plastic deformation.
Technical Specifications
Designation Decoding: TNMG 160404
Triangular
Negative 0°
Tolerance
Hole/Chip
0.4mm Rad
| Unit | Designation | Inscribed Circle | Thickness |
|---|---|---|---|
| Metric (ISO) | TNMG 160404 | 9.525 mm | 4.76 mm |
| Imperial (ANSI) | TNMG 331 | 3/8" | 3/16" |
Recommended Cutting Data (TT7015 Grade)
| Workpiece Material | Vc (Speed m/min) | fn (Feed mm/rev) |
|---|---|---|
| Grey Cast Iron (ISO K) | 250 - 600 | 0.10 - 0.35 |
| Ductile Iron (ISO K) | 200 - 450 | 0.08 - 0.30 |
System Matching
Applications & Compatibility
- Automotive Parts: Ideal for brake discs, engine blocks, and drum housings.
- High-Speed Production: Optimized for automated CNC environments with continuous cutting.
- Abrasive Materials: Designed to outlast standard grades in high-silicon iron castings.
- ISO Fitment: Compatible with all standard ISO/ANSI holders for size 16 (Size 33) inserts.
TaeguTec ISO K Grade Selector
| Grade | Type | Material Focus | Cutting Condition |
|---|---|---|---|
| TT7015 | CVD | Cast Iron (ISO K) | Continuous / High Speed |
| TT7005 | CVD | Grey Cast Iron | Ultra High Speed |
| TT8115 | CVD | Cast Iron / Steel | Universal Stability |
Why Choose TaeguTec TT7015?
Grey cast iron machining requires a unique balance of thermal barrier and hardness. TaeguTec TT7015 delivers on both fronts. By using a specialized CVD coating, this insert resists the abrasive "sand-paper" effect of iron flakes, ensuring that your dimensions remain consistent across long production runs. The 0.4mm radius is particularly effective at reducing tool pressure, which minimizes the risk of chipping on the workpiece edges during exit cuts.
"Reduced our cycle time on brake rotors significantly. The TT7015 handles the high heat perfectly."
— Jonathan D., USA"Beste Wahl für Gusseisen. Sehr hohe Standzeit und saubere Oberflächen."
— Dieter S., Germany"Ottimo per la ghisa. Il raggio 0.4 è perfetto per i piccoli dettagli che produciamo."
— Paolo R., Italy"Consistency is key in our shop. TaeguTec delivers every time."
— Kenji W., JapanFrequently Asked Questions
A: While it can cut steel, it is not optimized for it. For steel turning, we recommend the TT9225 or TT8125 grades for better chip control and ductility.
A: TT7015 is a high-hardness grade best for continuous turning. For heavy interrupted cuts in cast iron, the TT8115 grade is more suitable.
A: It allows for higher precision, sharper corners, and lower cutting forces, which is essential for delicate parts or finishing passes.
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.