CNMG 120408 AH8015 Wendeplatten - Tungaloy

Benefit from the combination of PVD-coated carbide, an 80° rhombic geometry and a double-sided chipbreaker for reliable turning of heat‑resistant alloys; order genuine inserts or consult Metav Werkzeuge for compatibility and process advice.

CNMG 120408 AH8015 – ISO turning insert CNMG 120408, 80° rhombic, PVD carbide by Tungaloy

A CNMG120408 AH8015 indexable turning insert engineered for general turning of heat‑resistant alloys, offering balanced wear resistance and cutting‑edge stability for productive machining.

• PVD-coated carbide, AH8015 grade
• 80° rhombic geometry for external and internal turning
• Double-sided chipbreaker, cylindrical hole for clamping

Longer tool life through balanced grade and coating

The AH8015 grade is a PVD-coated carbide developed as a first choice for the machining of heat‑resistant alloys. This combination provides a measured balance between wear resistance and cutting‑edge stability, which translates into longer intervals between indexings and fewer unplanned tool changes. For production planners and shopfloor engineers, that means improved uptime and more predictable cycle times. The coating also helps in resisting built‑up edge formation and thermal wear during continuous operations, contributing to stable component tolerances over longer tool life.

Geometry designed for versatile external and internal turning

The insert’s 80° rhombic geometry and 0.8 mm corner radius support a wide range of turning operations, from light profiling to general external facing and certain internal applications. The plate thickness of 4.76 mm and plate size 12 mm provide a robust contact area, while the 0° relief angle must be accounted for when selecting the matching holder and setting geometry. Compatibility with toolholders is determined by insert form, relief angle, tolerance class, fastening method, size and thickness; selecting the correct holder ensures repeatable clamping and consistent cutting conditions, which is crucial for achieving the intended surface finish and dimensional accuracy.

Secure clamping and economical machining strategy

The insert features a cylindrical hole and a double‑sided chipbreaker, enabling secure fastening and two available cutting edges per index. The double‑sided chipbreaker supports controlled chip formation for a variety of cut depths and feeds, reducing the risk of chip entanglement and protecting the workpiece surface. From an economic perspective, the two usable edges per plate and the robust PVD coating lower per‑component tooling costs and reduce stocking complexity in high‑mix production environments.

Practical application notes for process planners and operators

For turning operations on heat‑resistant alloys, pairing this insert with a stable clamping system and the correct chipbreaker style is recommended to exploit the grade’s properties. The PVD-coated AH8015 performs best when cutting parameters are chosen to limit excessive heat concentration—moderate cutting speeds and adequate coolant strategy often yield the best balance of tool life and productivity. When machining less demanding steels or different alloys, the same insert can be used provided the chipbreaker and cutting data are adapted. For compatibility checks regarding holder form and fastening method, refer to tooling documentation or contact a process specialist.

For ordering genuine Tungaloy CNMG120408 AH8015 inserts or to confirm holder compatibility, contact Metav Werkzeuge for tailored advice and rapid supply options.

Technical data

• Article number: 6741634

• SKU: 6741634-Tungaloy

• Manufacturer SKU: TUN6741634

• Model series: ISO‑turning inserts

• ISO designation: 120408

• Insert designation: CNMG120408

Core data

• Plate size: 12 mm

• Plate thickness: 4.76 mm

• Corner radius: 0.8 mm

• Approach angle: 80°

• Relief angle: 0°

• Hole style: cylindrical hole

Design and special features

• Plate form: rhombic

• Grade/coating: AH8015 (PVD‑coated carbide)

• Chipbreaker: double‑sided

• Application: Turning

• Material: carbide

FAQ

Is this insert suitable for machining heat‑resistant alloys?
Yes. The AH8015 PVD‑coated carbide grade on the CNMG120408 AH8015 insert is specified for the general machining of heat‑resistant alloys and is balanced between wear resistance and edge stability.

How many cutting edges are available per insert?
The insert has a double‑sided chipbreaker and a central hole for clamping, providing two usable cutting edges before reconditioning or disposal is required.

What holder characteristics are needed for correct mounting?
Holder compatibility depends on insert form, relief angle, tolerance class, fastening method, size and thickness; use a matching ISO‑compatible turning holder designed for CNMG‑style plates and the stated plate thickness.

What benefits does the PVD coating deliver in practice?
The PVD coating on the AH8015 grade improves wear resistance and thermal stability, reducing built‑up edge and extending edge life under continuous cutting conditions.

Is the insert suitable for both external and internal turning applications?
Yes. The 80° rhombic form and 0.8 mm corner radius make the insert versatile for both external and certain internal turning tasks when combined with a suitable holder.

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.