TaeguTec SPGG140512DA K10 | Precision Turning Insert for Aluminum
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TaeguTec SPGG140512DA K10
Master of Mirror Finishes: High-Precision Turning for Large Scale Non-Ferrous Components
Product Overview
"Which CNC turning insert is the best choice for achieving a high-gloss finish on large diameter aluminum workpieces without chatter?"
The TaeguTec SPGG140512DA K10 is a heavy-duty precision ground insert specifically optimized for ISO N (Non-ferrous) materials. The K10 grade features a sub-micron uncoated carbide substrate, providing the absolute sharpest cutting edge required to shear through gummy materials like Aluminum and Copper. Its DA chipbreaker is world-renowned for its mirror-polished rake face and high positive geometry, which significantly reduces cutting forces and eliminates Built-Up Edge (BUE). With a substantial 1.2mm nose radius, this insert provides exceptional surface integrity and edge strength for high-efficiency finishing.
Key Features
Uncoated fine-grain structure ensures maximum sharpness. It resists chemical adhesion from aluminum, extending tool life significantly in non-ferrous applications.
The DA geometry uses a polished rake face to minimize friction, ensuring chips flow away smoothly to prevent scratching the workpiece.
A 1.2mm radius combined with G-class precision grinding offers the perfect balance between surface gloss and edge durability.
Technical Specifications
ISO Designation Decoding: SPGG 140512 DA
Square
11° Relief
Tol. Class G
Hole/Chip
14.5mm L
5.56mm T
1.2mm RE
| Unit | Designation | I.C. (mm/inch) | Thickness (S) |
|---|---|---|---|
| Metric | SPGG 140512 DA | 14.5 mm | 5.56 mm |
| Imperial | SPGG 4.5(4)3 DA | 0.571" | 0.219" |
Recommended Cutting Parameters
| Workpiece Material | Speed (Vc m/min) | Feed (fn mm/rev) |
|---|---|---|
| Aluminum Alloy (Wrought) | 350 - 1200 | 0.10 - 0.35 |
| Copper / Brass / Bronze | 200 - 600 | 0.08 - 0.25 |
Matched Toolholders
This insert requires 11-degree relief angle holders: SCLC / SCAC / SCF (14 series).
Industrial Applications
- Finishing of large aerospace aluminum frames and engine parts.
- Mirror-finish turning of heavy-duty copper rollers and shafts.
- Precision machining of automotive aluminum alloy wheels.
- Automatic lathe operations for high-gloss brass decorative components.
TaeguTec Grade Benchmarking
Uncoated. Best for gloss and BUE prevention in Al.
Diamond-like carbon coated. Best for high-silicon abrasive Al.
Why Professional Machinists Trust TaeguTec
The SPGG140512DA K10 represents the pinnacle of large-scale finishing. Unlike generic alternatives, TaeguTec’s K10 substrate is engineered with a microscopic edge radius that cuts cleanly through material with minimal thermal transfer. When your production requires 100% surface perfection and high repeatability, the SPGG14 is the industry standard for non-ferrous excellence.
"Incredible Mirror Surface" - Achieved a glass-like finish on large aluminum alloy shafts. No chatter at all.
— Production Manager (USA)Sehr scharfe Schneidkante, ideal für unsere Aluminium-Produktion.
— CNC Spezialist (Germany)Ottima finitura su ottone. TaeguTec è sempre una garanzia.
— Meccanica di Precisione (Italy)Sharpest edge in the shop. Great for large plastics too.
— CNC Specialist (Japan)Frequently Asked Questions
1. Why is an uncoated grade (K10) better for Aluminum?
Uncoated carbide allows for a physically sharper edge. A coating adds thickness to the edge radius, which can cause heat and adhesion in soft aluminum.
2. Can I use this on Stainless Steel?
No. The sharp positive geometry and K10 grade will wear too fast in Stainless. Use TT9080 for ISO M materials.