TaeguTec CNMG190612EM TT9080 | Heavy-Duty PVD Stainless Turning Insert
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TaeguTec CNMG190612EM TT9080
Heavy-Duty Performance: Sub-Micron PVD Grade for Large-Scale Alloy Machining
Product Overview
"Which turning insert offers the best thermal stability and edge toughness for heavy-duty machining of large stainless steel shafts or aerospace engine housings?"
The TaeguTec CNMG190612EM TT9080 is an industrial-scale 80° rhombic insert optimized for ISO M (Stainless Steel) and ISO S (Super Alloys). Utilizing the premier TT9080 PVD grade, it features a specialized sub-micron substrate that resists thermal cracking and notch wear. The EM (Medium-Duty) chipbreaker is engineered with a sharp yet reinforced geometry to handle high depths of cut, while the 1.2mm radius ensures maximum edge strength under high-torque CNC operations.
Key Features
Smooth coating surface significantly reduces Built-Up Edge (BUE) on gummy stainless steels like 316L and 304.
Stable chip breaking across large feed ranges, preventing long "bird-nesting" chips in automated production.
With a 19.05mm IC and 6.35mm thickness, this insert is built for high-volume material removal in large workpieces.
Technical Specifications
ISO Code Decoding: CNMG190612EM
80° Rhom
0° Relief
Tolerance
Hole/Sint
19.05mm IC
6.35mm S
1.2mm RE
Med-Duty
| Unit System | Designation | I.C. Dimension | Radius (RE) |
|---|---|---|---|
| Metric (ISO) | CNMG190612EM | 19.05 mm | 1.2 mm |
| Imperial (ANSI) | CNMG643EM | 0.750" | 0.047" |
Recommended Cutting Parameters (ISO M/S)
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Stainless Steel (Austenitic) | 120 - 210 m/min | 0.20 - 0.50 mm/rev |
| Exotic Alloys (Inconel 718) | 30 - 65 m/min | 0.15 - 0.40 mm/rev |
Compatible Toolholders
Direct fit for large-shank 19.05mm I.C. holders including DCLNR/L 19, PCLNR/L 19, and MCLNR/L 19 holders and boring bars.
Product Applications
- Medium to heavy turning of large stainless steel shafts in power generation.
- Machining of heavy aerospace engine components in Super Alloys.
- Production of large-scale oil and gas valve bodies in Duplex Stainless.
- High-torque CNC turning requiring long tool life and thermal stability.
TaeguTec Grade Comparison (Stainless Focus)
| Grade Name | Coating Focus | Best Use Case |
|---|---|---|
| TT9080 (PVD) | Thermal/Wear Shield | Pro: Stainless & Exotics finishing/medium. |
| TT8125 (PVD) | Shock Toughness | General: Roughing & interrupted cuts. |
Why Choose TaeguTec?
TaeguTec, as part of the IMC Group, leads the global market in metallurgical precision. The TT9080 grade is specifically developed to overcome the chemical and thermal challenges of high-alloy materials. When you choose the CNMG1906 series, you are selecting a tool built for high-volume material removal without sacrificing the edge integrity that CNC operators demand in high-stakes aerospace and industrial projects.
Verified Global Feedback
"Reliable for Large Shafts"
Turning 304 stainless shafts was a nightmare for tool life. The TT9080 holds up beautifully through the entire pass.
— Heavy Machining Corp (USA)"Aerospace Standard"
We use these for Inconel housings. The EM breaker controls chips perfectly at high feed rates. No built-up edge issues.
— Precision Aerospace Ltd (Germany)"Very Consistent"
Great predictability. Makes it easy to plan tool life in our automated lines. The 1.2 radius is very tough.
— Advanced Parts (Japan)Frequently Asked Questions
1. Is the EM breaker suitable for light finishing?
The EM (Medium-Duty) breaker is designed for medium to heavy turning. For very light finishing passes, consider EA or PC geometries.
2. Does this grade require coolant?
Yes. For Stainless and Super Alloys, high-pressure coolant is critical to flush chips and protect the sub-micron substrate from thermal shock.
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.