TaeguTec DCMT070204FG TT8115 | CVD Coated Carbide Turning Insert
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TaeguTec DCMT070204FG TT8115
High-Speed CVD Gold Grade: The Industry Standard for Cast Iron Precision
Product Overview
"Which insert is most reliable for high-speed finishing in Gray and Ductile Cast Iron while maintaining long tool life?"
The TaeguTec DCMT070204FG TT8115 is a specialized solution designed for ISO K (Cast Iron) and stable ISO P (Steel) applications. The TT8115 grade utilizes a thick CVD coating with a multi-layered TiCN and Al2O3 structure, providing extreme resistance to abrasive wear and cratering at high temperatures. The FG (Finishing-General) chipbreaker is engineered for light finishing cycles, featuring a sharp cutting edge that minimizes tool pressure. This prevents vibration and ensures a superior surface finish even on slender workpieces.
Key Features
Thick alumina layer provides elite thermal protection, allowing for 20-30% higher cutting speeds than PVD grades.
A sharp, high-positive rake angle that reduces cutting forces and produces excellent chip fragmentation in finishing pass.
Engineered specifically to handle the abrasive nature of cast iron, preventing premature flank wear.
Technical Specifications
ISO Code Decoding: DCMT070204FG
55° Rhom
7° Relief
Tolerance
Hole/Sint
6.35mm IC
2.38mm S
0.4mm RE
Finishing
| Unit System | Designation | I.C. Dimension | Thickness (S) |
|---|---|---|---|
| Metric (ISO) | DCMT070204FG | 6.35 mm | 2.38 mm |
| Imperial (ANSI) | DCMT21.51FG | 0.250" | 0.094" |
Recommended Cutting Parameters
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Gray Cast Iron (ISO K) | 200 - 450 m/min | 0.05 - 0.20 mm/rev |
| Carbon Steel (ISO P) | 180 - 350 m/min | 0.05 - 0.15 mm/rev |
Compatible Toolholders
This 07-size DCMT insert fits all standard precision holders including SDJCR/L 07, SDNCN 07, and S-SDUCR/L 07 boring bars.
Product Applications
- High-speed finishing of cast iron engine components and brake rotors.
- Precision turning of gear blanks and industrial shafts in ISO K materials.
- Internal boring of small-diameter cast iron parts where heat dissipation is critical.
- General-purpose finishing of carbon steel components in stable CNC environments.
TaeguTec Grade Comparison (ISO K & P)
| Grade Name | Coating | Primary Advantage |
|---|---|---|
| TT8115 (Carbide) | CVD Gold | High Speed: Maximum wear resistance in abrasive Cast Iron. |
| TT5080 (Carbide) | PVD TiAlN | Toughness: Superior edge life in gummy Stainless Steel. |
Why Choose TaeguTec?
TaeguTec is a global leader in high-performance CNC tooling, part of the world-renowned IMC Group. The TT8115 series represents the pinnacle of CVD coating science, engineered specifically for high-productivity environments. By integrating a multi-layered alumina barrier with a high-strength carbide substrate, we ensure that your machine stays running longer with fewer insert changes. When your throughput depends on high spindle speeds and extreme wear resistance, TaeguTec TT8115 is the industrial partner you can trust for uncompromising accuracy.
Global Industry Feedback
"Exceptional Life in Cast Iron"
Using these for finishing gray iron housings. We increased our speed by 20% and the inserts still lasted longer than our previous supplier's grade.
— CastPro Precision (USA)"Hervorragende Oberfläche"
Very stable dimensions across large batches. The FG chipbreaker produces perfect chips even at low feed rates.
— Zerspanung Nord (Germany)"Solid for Steel Finishing"
Works great on internal boring of steel bushings. Very consistent wear pattern and no chipping.
— Meccanica S.r.l (Italy)Frequently Asked Questions
1. What is the benefit of CVD coating over PVD for Cast Iron?
CVD coatings (like TT8115) are thicker and provide significantly better thermal protection, which is essential for resisting the abrasive wear of cast iron at high speeds.
2. Can I use this for Stainless Steel?
No. For stainless steel finishing, we recommend TaeguTec TT5080. CVD grades can lead to built-up edge and poor surface finish in gummy materials.
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.