CNMG 120408 AH8015 Wendeplatten - Tungaloy

Take advantage of the PVD‑coated AH8015 grade and the 80° CNMG geometry for reliably productive turning of heat‑resistant alloys; compatibility with ISO holders reduces setup time and supports uninterrupted production. Order the insert directly via Metav Werkzeuge or consult our specialists for configuration advice.

CNMG120408 AH8015 Tungaloy indexable insert — CNMG 120408, AH8015 for turning

CNMG120408 AH8015 Tungaloy indexable insert is an ISO‑standard insert designed for external and internal turning, engineered for balanced wear resistance and cutting‑edge stability in heat‑resistant alloys.

• CNMG 80° rhombic geometry
• PVD‑coated carbide AH8015 grade
• 0° clearance for robust cutting
• Double‑sided chipbreaker, cylindrical hole

High productivity with heat‑resistant alloys

The PVD‑coated AH8015 grade combines a hard, wear‑resistant surface with a carbide substrate to provide a well‑balanced compromise between wear resistance and edge stability. This makes the insert particularly effective for turning heat‑resistant alloys, where thermal loads and abrasive wear challenge tool life. The coating reduces built‑up edge and improves consistency of results; as a consequence, cycle times remain stable and fewer insert changes are required, supporting predictable throughput in serial production.

Reliable fit and fast integration into ISO systems

As an ISO‑standard turning insert, compatibility with the tool holder is governed by form, clearance angle, tolerance class, fastening type, size and thickness. The rhombic CNMG geometry with an 80° lead angle and the cylindrical hole ensure secure clamping and simple indexing on compatible holders. Because the system‑related dimensions follow ISO norms, tool changes and re‑setting are faster and measurement-based verification of the clamping position is straightforward, reducing machine downtime and setup variance.

Geometry and chip control for consistent surface finish

The 0.8 mm corner radius and 0° clearance deliver a robust cutting edge suited to heavier feeds and interrupted cuts, while the double‑sided chipbreaker supports dependable chip formation across a range of cutting conditions. For external and internal turning applications, this geometry yields improved stability and a consistent surface quality, even when machining materials with varying toughness. Choosing the right chipbreaker and grade combination therefore directly affects the balance between material removal rate and surface integrity.

Practical benefits for workshop efficiency

The insert’s double‑sided design effectively halves the tooling cost per cutting edge compared with single‑sided options, and the PVD coating enhances resistance to thermal softening. The indexable insert concept simplifies inventory management — one ISO type fits multiple holders when matched by form and thickness — and the standardised dimensions allow easy cross‑referencing in tool lists. Where machining of demanding alloys is routine, the combination of grade, geometry and coating supports longer uninterrupted runs and fewer tool changes.

Selection guidance and system considerations

Compatibility is not limited to shape alone: form, free angle, tolerance class, fastening, size and thickness must be matched to the holder. For most turning tasks with heat‑resistant alloys, a PVD‑coated carbide grade with a robust edge is appropriate; for fine finishing, a smaller corner radius or alternative chipbreaker may be selected. The insert is part of a system consisting of an ISO insert, the correct external holder or boring bar, support plate/clamp set and replacement screws — ensuring repeatable clamping and machining performance.

For detailed application advice or to reserve CNMG120408 AH8015 Tungaloy indexable inserts for upcoming production runs, contact Metav Werkzeuge for technical recommendations and fast supply at info@metav-werkzeuge.com or +49 2822 7131930

Technical Data

• Article number: 6946768
• Manufacturer SKU: TUN6946768
• SKU: 6946768-Tungaloy
• Series: ISO‑Drehwendeschneidplatten

Core dimensions

• Size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 0.8 mm
• Lead/angle: 80°
• Clearance angle: 0°

Design & features

• Shape: rhombic (CNMG)
• Material: carbide
• Grade/coating: AH8015, PVD‑coated
• Hole: with hole, cylindrical hole
• Chipbreaker: double‑sided
• Application: external and internal turning

FAQ

What materials is this insert best suited for?
The CNMG120408 AH8015 Tungaloy indexable insert is optimised for heat‑resistant alloys, offering a balance of wear resistance and edge stability that suits demanding turning tasks.

How does the 0° clearance affect cutting performance?
A 0° clearance delivers a robust cutting edge and improved resistance to edge chipping during heavier cuts; this is a deliberate design choice for stable machining of tougher materials.

Can the insert be used on any ISO CNMG holder?
The insert follows ISO dimensions, but compatibility depends on form, clearance angle, tolerance class, fastening, size and thickness; matching those parameters ensures secure clamping and correct fit.

What is the advantage of the double‑sided chipbreaker?
A double‑sided chipbreaker provides two usable cutting edges per index, improving cost efficiency and enabling quick re‑indexing for renewed cutting performance.

Is the AH8015 coating suitable for finishing passes?
AH8015 is designed as a general‑purpose PVD‑coated carbide grade that balances wear resistance and edge strength; for fine finishing, selecting an appropriate chipbreaker and adjusting feed/speed is recommended.

Manufacturer/Responsible: Tungaloy‑NTK Germany GmbH, Katzbergstraße 3a, 40764 Langenfeld - Protected trademarks and product names are the property of their respective owners. Brand names and protected trademarks are mentioned solely for explanatory purposes. There is no affiliation between our company and the mentioned brands. The item offered is an original, brand‑new product from the manufacturer.