TaeguTec CNMG120408MT TT8115 | PVD Carbide Insert for Stainless Steel
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TaeguTec CNMG120408MT TT8115
The HRSA Authority: High-Performance PVD Solution for Heat-Resistant Super Alloys & Stainless Steel
Product Overview
"Which turning insert grade offers the best tool life when machining Inconel or Titanium while preventing notch wear and work-hardening?"
The TaeguTec CNMG120408MT TT8115 is an 80° rhombic insert designed for the most demanding ISO M and ISO S materials. The TT8115 PVD grade features a specialized coating that excels in high-heat environments, preventing chemical wear and maintaining edge sharpness against abrasive alloys. The MT (Medium-Tough) chipbreaker, combined with a 0.8mm radius, provides enhanced edge strength for stable medium turning, ensuring excellent chip evacuation and reducing the risk of sudden tool failure in high-value components.
Key Features
Extreme thermal stability and coating adhesion designed specifically for heat-resistant super alloys (HRSA).
A robust corner radius provides increased durability for interrupted cuts and heavier depths of cut.
Optimized rake angle reduces cutting forces and prevents work-hardening of the workpiece surface.
Technical Specifications
ISO Code Decoding: CNMG120408MT
80° Rhom
0° Relief
Tolerance
Hole/Sinter
12.7mm L
4.76mm S
0.8mm RE
Chipbreaker
| Unit System | Designation | I.C. Size | Radius (RE) |
|---|---|---|---|
| Metric (ISO) | CNMG120408MT | 12.7 mm | 0.8 mm |
| Imperial (ANSI) | CNMG432MT | 0.500" | 0.031" |
Recommended Cutting Parameters (ISO M/S)
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Stainless Steel (Austenitic) | 150 - 230 m/min | 0.15 - 0.40 mm/rev |
| Nickel Alloys (Inconel) | 35 - 70 m/min | 0.10 - 0.25 mm/rev |
Matching Toolholders
Standard fit for DCLNR/L 12, PCLNR/L 12, and MCLNR/L 12 external and internal boring bars.
Product Applications
- High-temperature turning of Aerospace turbine blades and flanges.
- Precision machining of Stainless Steel pump bodies and valve stems.
- Turning of Medical-grade Titanium alloys requiring high bio-compatibility.
- Stable machining of Duplex and Super-Duplex Stainless Steels.
TaeguTec Grade Comparison (Stainless & HRSA)
| Grade Name | Coating Strategy | Primary Application |
|---|---|---|
| TT8115 (PVD) | Advanced High-Heat PVD | Top Performance: Inconel, Titanium, Stainless. |
| TT8020 (PVD) | General Purpose PVD | Versatile: Mixed Stainless and Alloy Steel. |
Why Choose TaeguTec?
A global leader within the IMC Group, TaeguTec represents the absolute frontier of industrial metallurgy. The TT8115 grade is engineered for the high-stakes aerospace and energy sectors, where material costs are high and failure is not an option. By selecting TaeguTec, you choose industrial-grade consistency, superior heat management, and a tool that delivers professional performance in the world's most difficult-to-cut materials.
Verified Global Feedback
"Flawless on Titanium"
We machine medical implants and needed a grade that wouldn't overheat. TT8115 stays sharp and doesn't pull material. Exceptional quality.
— MedTech Manufacturing (USA)"Best for Stainless 316L"
Excellent chip control with the MT breaker. The 0.8mm radius gives us the edge strength we need for interrupted cuts on large flanges.
— Petro-Industrie GmbH (Germany)"Stable in High-Heat Cuts"
Predictable edge wear on Hastelloy. It allows us to keep our CNC machines running longer without manual offsets.
— Aero-Components (Japan)Frequently Asked Questions
1. Is TT8115 better than CVD grades for Stainless Steel?
PVD grades like TT8115 have thinner, sharper edges, which are critical for preventing work-hardening in gummy materials like Stainless and HRSA.
2. Should I use coolant with this insert?
High-pressure coolant is strongly recommended for ISO M/S materials to assist in chip breaking and to maintain the integrity of the PVD coating.