Tungaloy VBMT160404-PS T9115 Insert
High-Speed Steel Finishing | CVD Coated | 16mm Profiling Power
What is the best insert grade for high-speed steel finishing?
The Tungaloy VBMT160404-PS T9115 is a premium CVD-coated carbide insert specifically optimized for finishing operations in steel (P15-P25 range). Featuring the advanced PremiumTec surface technology, the T9115 grade offers exceptional wear resistance and heat dissipation during high-speed continuous cutting. The 35-degree rhombic geometry allows for intricate profiling and copying, while the -PS (Positive Sharp) chipbreaker ensures superior chip control at shallow depths of cut. This insert is the industrial choice for machinists seeking high-efficiency production and consistent dimensional accuracy in carbon and alloy steels.
T9115 CVD Grade
A thick Al2O3 coating combined with PremiumTec technology provides incredible resistance to crater wear and heat, making it ideal for dry or high-speed machining.
-PS Finishing Breaker
The sharp rake angle minimizes cutting resistance, effectively reducing vibration and heat buildup during precision profiling and super-finishing passes.
Extended Edge Length
The 16mm edge provides additional stability and heat dissipation capacity compared to smaller variants, supporting more aggressive profiling speeds.
Decoding VBMT 160404-PS Nomenclature
V
35° Rhom
B
5° Relief
M
Tolerance
T
Hole/Sinter
16
16mm Leg
04
4.76mm Thk
04
0.4 Rad
-PS
Sharp
3. Technical Data: ISO vs. ANSI Comparison
| Standard Parameter |
ISO (Metric) |
ANSI (Imperial) |
| Standard Model |
VBMT160404-PS |
VBMT 331-PS |
| Inscribed Circle (IC) |
9.525 mm |
3/8" |
| Thickness (S) |
4.76 mm |
3/16" |
| Corner Radius (RE) |
0.4 mm |
1/64" |
Recommended Cutting Parameters for Steel Finishing
-
Cutting Speed (Vc): 150 - 400 m/min (Highly efficient at 280 m/min)
-
Feed Rate (f): 0.05 - 0.25 mm/rev
-
Depth of Cut (ap): 0.2 - 1.5 mm
4. Primary Applications
- High-speed finishing of carbon steel (S45C) and alloy steel (SCM440).
- Intricate profiling of automotive transmission components.
- Final diameter finishing where tight dimensional tolerance is required.
- Semi-finishing to finishing cycles on medium-sized workpieces.
5. Tool Holder Compatibility
Designed for all standard ISO VBMT 1604 pockets. Works seamlessly with SVJCR/L external profiling holders and SVUCR/L internal boring bars. Perfect for Citizen, Haas, Mazak, and Mori Seiki lathes.
6. Tungaloy Grade Selection Guide for Steel
| Grade |
Coating Type |
Target Application |
Cutting Stability |
| T9115 |
CVD (PremiumTec) |
High-Speed Finishing |
Ultra Wear Resistant |
| T9125 |
CVD (PremiumTec) |
General Purpose / Medium |
Balanced Toughness |
| NS9530 |
Uncoated Cermet |
Super-Finishing (Mirror) |
High Gloss Finish |
7. Why Source from Beyond Li?
100% Genuine
Tungaloy Japan Official Stock
Technical Support
Process Optimization Help
Global Fast-Track
B2B Express Shipping
Feedback from Global Machinists
⭐⭐⭐⭐⭐ "Incredible Tool Life" - F. Schneider, Germany
"T9115 is my go-to for finishing alloy steel. Even at 300 m/min, the flank wear is minimal. Best finishing results I've had in years."
⭐⭐⭐⭐⭐ "Perfect Profiling" - R. Miller, USA
"The -PS breaker handles fine chips beautifully. No bird-nesting on our long finishing passes. Arrived from Beyond Li in 3 days."
⭐⭐⭐⭐⭐ "Great Heat Resistance" - T. Tanaka, Japan
"Working dry is no problem for this grade. The PremiumTec surface really prevents crater wear on high-speed runs."
⭐⭐⭐⭐⭐ "Excellent B2B Partner" - L. Rossi, Italy
"Authentic Tungaloy stock verified. We use these for our automotive production line. Very stable performance."
8. FAQ - Engineering Support
Q: Is T9115 suitable for interrupted cuts?
A: T9115 is a hard grade optimized for continuous finishing. For heavy interrupted cuts, the T9125 grade with higher toughness is recommended.
Q: Can I use this for stainless steel?
A: T9115 is designed for steel (P). For stainless steel (M), we recommend Tungaloy's AH600 series (like AH630) for better corrosion and thermal resistance.
Q: Why use the 16mm size over 11mm?
A: The larger 1604 size offers more mass for heat dissipation and a longer support edge, making it more stable for larger workpieces or slightly deeper finish cuts.
Expert Tip: Maximizing T9115 Life
To fully utilize the **T9115 PremiumTec** coating, aim for high cutting speeds (above 200 m/min). This prevents edge buildup and utilizes the thermal barrier of the CVD coating to keep the carbide substrate cool. **Tungaloy Japan** - Precision Engineering.
© Technical Content by cnchome-beyond.com - Global CNC Tool Authority
