TaeguTec CNMG120412PC TT8115 | Precision PVD Turning Insert
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TaeguTec CNMG120412PC TT8115
Advanced Thermal Stability: Precision PVD Grade for High-Heat Finishing Applications
Product Overview
"Which carbide insert grade provides the best edge retention and thermal resistance when finishing heat-resistant super alloys like Inconel or Titanium?"
The TaeguTec CNMG120412PC TT8115 is an 80° rhombic turning insert specifically optimized for ISO M (Stainless Steel) and ISO S (Super Alloys). The TT8115 PVD grade is engineered with a high-hardness sub-micron substrate and a heat-shielding coating that excels in high-speed finishing where friction-generated heat is extreme. The PC (Positive Finishing) chipbreaker features a sharp, precision-ground edge that reduces work hardening, while the 1.2mm radius offers enhanced structural integrity for high-quality surface results.
Key Features
Advanced PVD coating layer acts as a thermal barrier, significantly extending tool life in dry and wet aerospace machining.
A sharp, positive rake geometry designed to minimize cutting forces and prevent burr formation on gummy materials.
Provides a stronger cutting edge than standard finishing inserts, allowing for higher feed rates while maintaining finish.
Technical Specifications
ISO Code Decoding: CNMG120412PC
80° Rhom
0° Relief
Tolerance
Sintered
12.7mm IC
4.76mm S
1.2mm RE
Positive
| Unit System | Designation | I.C. Dimension | Radius (RE) |
|---|---|---|---|
| Metric (ISO) | CNMG120412PC | 12.7 mm | 1.2 mm |
| Imperial (ANSI) | CNMG433PC | 0.500" | 0.047" |
Recommended Cutting Parameters (ISO S/M)
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Inconel / Titanium Alloys | 35 - 85 m/min | 0.10 - 0.30 mm/rev |
| Stainless Steel (316L) | 140 - 240 m/min | 0.15 - 0.35 mm/rev |
Recommended Toolholders
This insert is a standard fit for all DCLNR/L 12, PCLNR/L 12, and MCLNR/L 12 toolholders and internal boring bars.
Product Applications
- High-precision finishing of aerospace engine turbine blades and structural parts.
- Machining of medical implants and surgical tools in Titanium.
- Precision finishing of high-performance automotive valves and turbo components.
- Professional CNC finishing of Stainless Steel components in the chemical and food industries.
TaeguTec PVD Grade Comparison
| Grade Name | Coating Focus | Best Use Case |
|---|---|---|
| TT8115 (PVD) | High Heat Shield | Precision: Exotic alloys and high-temp finishing. |
| TT8125 (PVD) | Fracture Toughness | Stability: Interrupted and heavy roughing Stainless. |
Why Choose TaeguTec?
A flagship brand within the global IMC Group, TaeguTec leads the frontier of metallurgical engineering. The TT8115 grade is the result of extensive research into the chemical interactions of high-temperature alloys at the cutting edge. By choosing TaeguTec, you are investing in unmatched tool consistency, which translates directly to reduced scrap and higher profitability in your CNC operations.
Verified Global Feedback
"Flawless Surface Finish"
Using these for Titanium medical pins. The PC breaker is incredibly sharp—no burrs and the 1.2 radius gives the edge the strength it needs for long runs.
— Med-Tech Machining (USA)"Excellent on Inconel"
Finally a grade that handles the heat of finishing Inconel. The TT8115 lasts significantly longer than the CVD grades we were using previously.
— Aero-Components GmbH (Germany)"Highly Reliable"
Very predictable tool life. We can automate our finishing cycles with confidence using this TaeguTec insert.
— Precision Works (Japan)Frequently Asked Questions
1. Is the PC breaker suitable for roughing?
The PC (Positive Finishing) breaker is designed specifically for finishing. For roughing, we recommend the MT or RT geometries to handle higher chip loads.
2. Does this insert require high-pressure coolant?
While TT8115 handles heat exceptionally well, high-pressure coolant is strongly recommended for finishing Super Alloys to ensure chip evacuation and prevent built-up edge.