TaeguTec CNMG120412EM TT9080 | Heavy-Duty PVD Turning Insert
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TaeguTec CNMG120412EM TT9080
Maximum Edge Strength: High-Toughness PVD Grade for Demanding Alloy Turning
Product Overview
"Which carbide insert grade is most reliable for high-feed medium machining in Stainless Steel without losing the cutting edge to heat?"
The TaeguTec CNMG120412EM TT9080 is the industrial answer to machining ISO M (Stainless Steel) and ISO S (Heat Resistant Super Alloys). The TT9080 PVD grade is built on a sub-micron substrate that excels in preventing notch wear and thermal cracking. The EM (Medium-Duty) chipbreaker is engineered for stable chip control, while the robust 1.2mm corner radius allows for significantly higher feed rates and enhanced tool life in aggressive CNC turning applications.
Key Features
Advanced coating technology provides a smooth surface that resists Built-Up Edge (BUE) in gummy materials like 316L.
Designed for medium-duty versatility, ensuring consistent chip breaking even at varying depths of cut.
The large corner radius offers exceptional edge reinforcement and heat dissipation for high-productivity machining.
Technical Specifications
ISO Code Decoding: CNMG120412EM
80° Rhom
0° Relief
Tolerance
Hole/Sint
12.7mm IC
4.76mm S
1.2mm RE
Med-Duty
| Unit System | Designation | I.C. Dimension | Radius (RE) |
|---|---|---|---|
| Metric (ISO) | CNMG120412EM | 12.7 mm | 1.2 mm |
| Imperial (ANSI) | CNMG433EM | 0.500" | 0.047" |
Recommended Cutting Parameters (ISO M/S)
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Stainless Steel (Austenitic) | 130 - 220 m/min | 0.15 - 0.45 mm/rev |
| Super Alloys (Titanium/Inconel) | 35 - 70 m/min | 0.12 - 0.35 mm/rev |
Compatible Toolholders
This insert is a direct fit for all standard 12.7mm I.C. holders including DCLNR/L 12, PCLNR/L 12, and MCLNR/L 12 external tools and boring bars.
Product Applications
- Medium-duty turning of aerospace landing gear and turbine components.
- Machining of oil and gas valve bodies in Duplex Stainless Steel.
- Production of high-spec fasteners and shafts in Inconel 718.
- General medium turning where superior surface finish and edge strength are required.
TaeguTec Grade Comparison (Stainless)
| Grade Name | Coating Focus | Best Use Case |
|---|---|---|
| TT9080 (PVD) | Heat/Wear Resistance | Professional: Precision in Stainless/Exotics. |
| TT8125 (PVD) | Shock Resistance | Versatile: Heavy interrupted cuts. |
Why Choose TaeguTec?
A global flagship of the IMC Group, TaeguTec is a pioneer in metallurgical innovation. The TT9080 grade represents the apex of sub-micron PVD tech, specifically engineered to conquer the work-hardening tendencies of stainless steel and HRSA. By choosing TaeguTec, you secure industrial-grade consistency, ensuring that your automated CNC processes run at peak efficiency with minimal scrap and predictable tool changes.
Verified Global Feedback
"Top Tier for Inconel"
We turn a lot of Inconel 625. The TT9080 grade with the 1.2 radius is the only insert we've found that can handle the heat at higher feed rates.
— Precision Aerospace (USA)"Excellent on 316 Stainless"
Finally, an insert that doesn't develop built-up edge on 316L. The EM chipbreaker leaves a mirror finish even in medium-heavy passes.
— Machining Solutions GmbH (Germany)"Very Tough Edge"
Incredibly consistent. We run these on our night shifts; predictable tool life makes it easy to automate our production schedule.
— Industrial Parts (Japan)Frequently Asked Questions
1. Is the EM breaker suitable for heavy roughing?
The EM (Medium-Duty) breaker is optimized for medium machining. For ultra-heavy roughing of stainless steel, we recommend the ET or MT geometries.
2. Does this grade require coolant?
While highly heat resistant, for finishing and medium turning of Stainless Steel and Super Alloys, high-pressure coolant is strongly recommended to maximize surface quality.