Taegutec TNMG 160412 PC TT8115 CVD Insert for Cast Iron Heavy Turning (10pcs)

$120.99 USD

Price shown is a starting point. Contact us for a precise quote based on your requirements.

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Description

TaeguTec TNMG 160412 PC TT8115

Engineered for High-Speed Cast Iron and Stable Steel Machining

Product Overview

"Which insert is best for high-speed turning of cast iron components while maintaining a high feed rate and superior tool life?"

The TaeguTec TNMG 160412 PC TT8115 is a premium CVD-coated carbide insert built for maximum productivity. The TT8115 grade features an ultra-hard substrate combined with a thick alumina coating, providing unmatched wear resistance in ISO K (Cast Iron) and high-speed ISO P (Steel) applications. This model is paired with the PC (Positive Cut) chipbreaker, designed to reduce radial cutting forces and heat build-up. With its 1.2mm corner radius, this insert allows for significantly higher feed rates compared to standard 0.4mm or 0.8mm models, making it the perfect solution for large-diameter turning and high-productivity finishing.

Core Performance Advantages

TT8115 Wear Resistance

Optimized for abrasive materials like Grey and Nodular Cast Iron. Exceptional resistance to crater and flank wear.

PC Low-Force Logic

The sharp positive geometry slices through the workpiece, minimizing machine spindle load and preventing vibration.

High-Feed Finishing

The 1.2mm radius allows for faster table feeds without sacrificing surface quality, shortening overall cycle times.

Technical Specifications

Insert Code Decoding: TNMG 160412 PC

T
Triangle
N
Negative
M
Tolerance
G
Hole/Chip
160412
1.2 Rad
PC
Posi-Cut
Feature Metric (ISO) Imperial (ANSI)
Standard Model TNMG 160412 PC TNMG 333 PC
I.C. / Thickness 9.525 mm / 4.76 mm 3/8" / 3/16"
Corner Radius 1.20 mm 3/64" (0.047")

Recommended Cutting Parameters (TT8115 Grade)

Material Group Vc (Speed m/min) fn (Feed mm/rev)
Cast Iron (ISO K) 250 - 500 0.20 - 0.55
Stable Steel (ISO P) 200 - 400 0.15 - 0.45

System Matching


Applications & Tooling Compatibility

  • Cast Iron Machining: Specialized for brake discs, engine blocks, and hydraulic components.
  • Stable Turning: Best for continuous cutting in rigid setups where tool life is the priority.
  • Heavy Finishing: The 1.2mm radius is ideal for achieving smooth surfaces at higher feed rates.
  • Standard Fitment: Compatible with all standard ISO/ANSI holders (MTJNR, MTFNR, etc.) for size 16 inserts.

TaeguTec Grade Comparison Tip

Grade Coating Workpiece Focus Key Advantage
TT8115 CVD Cast Iron / High-Speed Steel Extreme Hardness
TT8125 CVD General Steel / Ductile Iron Balanced Toughness
TT9225 CVD Carbon & Alloy Steel Thermal Barrier

Why Choose TaeguTec TT8115?

In high-speed production environments, downtime for tool changes is profit lost. The TaeguTec TT8115 grade is engineered with a substrate that resists the intense heat generated when cutting abrasive cast irons. By utilizing the PC chipbreaker, this insert prevents the common issue of work hardening and excessive spindle load. The larger 1.2mm corner radius further enhances the durability of the cutting edge, ensuring dimensionally accurate parts through long production shifts.

★★★★★

"Reduced our cycle time on grey iron flywheels by 15%. The TT8115 grade is incredibly hard."

— Gary M., USA
★★★★★

"Perfekt für Gussbearbeitung. Standzeit ist viel besser als bei der Konkurrenz."

— Hans B., Germany
★★★★★

"Ottima resistenza all'abrasione. Finitura superficiale eccellente con avanzamenti elevati."

— Luca V., Italy
★★★★☆

"Very stable grade. The 1.2mm radius is the right choice for our heavy CNC lathe setups."

— Yoshi T., Japan

Frequently Asked Questions

Q: Is TT8115 suitable for interrupted cuts?
A: TT8115 is a very hard grade optimized for continuous high-speed turning. For heavy interrupted cuts, we recommend the tougher TT8125 grade.
Q: Can I use this on Stainless Steel?
A: No. The coating and substrate are optimized for Iron and Steel. For Stainless (ISO M), please use TaeguTec TT9080 or TT5080.
Q: Why use a 1.2mm radius over 0.8mm?
A: A larger radius provides a stronger cutting edge and allows for higher feed rates (fn) while maintaining the same surface finish quality.

Machining Tip: CVD grades like TT8115 are best for thermal resistance in stable applications. Always prioritize the 1.2mm radius when the part geometry allows for increased productivity.

Technical FAQ & Buying Guide

Are your carbide inserts interchangeable with major brands like Sandvik, Iscar, or Kennametal?

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.

How do I choose the correct insert grade and chipbreaker for machining Stainless Steel (M) vs. Carbon Steel (P)?

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.
What are the recommended cutting speed (Vc) and feed rate (f) parameters to maximize tool life?

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.
Do you offer bulk discounts or wholesale pricing for machine shops and distributors?

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.

What is your international shipping policy and typical lead time for orders?

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.

How do you guarantee the quality and tolerance precision of your CNC tools?

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.