CNMG 190612 AH8005 Wendeplatten - Tungaloy

Take advantage of the combination of PVD-coated carbide wear resistance, double-sided indexing and ISO compatibility for reliable turning of heat-resistant alloys and hard materials. Order the CNMG190612 AH8005 insert directly via Metav Werkzeuge or ask the consultants for application advice.

CNMG190612 AH8005 Tungaloy turning insert — PVD-coated carbide, 80° rhombic

The CNMG190612 AH8005 is a rhombic, ISO-standard indexable insert engineered for external and internal turning where stable machining of hard or heat-resistant materials is required.

• PVD-coated wear-resistant grade AH8005
• ISO CNMG 190612 rhombic 80° geometry
• Double-sided indexable insert, 6.35 mm thick
• Suitable for heat-resistant alloys and hard materials

Greater process reliability for demanding alloys

The PVD-coated carbide grade AH8005 combines thermal stability with controlled flank wear, making it well suited for machining heat-resistant alloys and other tough materials under stable conditions. The coating enhances resistance at elevated temperatures and reduces built-up edge, which translates into longer edge life and more predictable tool change intervals. Complemented by a double-sided chipbreaker, the insert supports consistent chip formation and evacuation during continuous operations, helping to maintain cycle times and reduce scrap rates without sacrificing surface integrity.

Secure clamping and economical indexing

A robust clamping interface is essential for repeatable results; the cylindrical hole and ISO dimensions ensure secure fixture in the matching holder. The combination of ISO compatibility, form, tolerance class, fastening type, size and 6.35 mm thickness must be observed when selecting a holder to guarantee correct seating and repeatability. The double-sided design allows multiple indexable cutting edges, lowering tool cost per edge and improving overall tool utilisation in volume production. The neutral 0° clearance angle provides versatile engagement for various turning setups and simplifies holder selection.

Precision finishing with controlled edge geometry

The 1.2 mm corner radius balances toughness and finish capability, offering strength for interrupted cuts while still enabling fine surface results where process stability permits. The 80° rhombic geometry provides good access for both external and internal turning operations and supports a variety of approach angles. For demanding surface-quality requirements, pairing the insert with a stable toolpost and rigid holder minimises vibration and makes the most of the insert’s geometry and chipbreaking features to achieve consistent finishes.

Practical selection advice for the workshop

For best results, match the insert’s chipbreaker style to the workpiece material and machining strategy: the double-sided chipbreaker is optimised for steady chip control during continuous and semi-continuous cuts. In less rigid or highly interrupted conditions, consider a more robust clamping arrangement or a holder that increases overhang stiffness. The indexable insert is intended for ISO-conforming tool systems; compatibility is determined by the holder’s form, free angle, tolerance class, fastening, size and thickness. If application parameters are uncertain, technical consultation is recommended to align insert grade, geometry and holder choice for the targeted material and machining stability.

Contact Metav Werkzeuge for detailed application support and availability of the Tungaloy CNMG190612 AH8005; advise by phone or email is available to match the insert to specific turning tasks.

Technical data

• Article number: 6741647-Tungaloy
• Manufacturer SKU: TUN6741647
• Manufacturer article no.: 6741647
• Model series: ISO-Drehwendeschneidplatten

Data

• Geometry designation: CNMG190612
• Size: 19 mm
• Thickness: 6.35 mm
• Corner radius: 1.2 mm
• Insert angle: 80°
• Clearance angle: 0°
• Hole: with cylindrical hole

Special features

• Material: carbide
• Coating / grade: AH8005, PVD-coated
• Chipbreaker: double-sided
• Plate shape: rhombic
• Application: turning (external and internal)
• System components: ISO insert, matching external holder or boring bar, shim/clamping set, replacement screws

FAQ

What materials is this insert suitable for?
The CNMG190612 AH8005 Tungaloy turning insert is designed primarily for heat-resistant alloys and other hard materials, exploiting the PVD-coated carbide grade AH8005 for improved wear resistance.

Is the insert compatible with standard CNMG holders?
Compatibility depends on holder form, free angle, tolerance class, fastening method, size and thickness; the CNMG190612 conforms to ISO dimensions but the matching holder must meet the same specifications for secure clamping.

How does the double-sided design affect tool economy?
The double-sided construction of the CNMG190612 AH8005 insert provides multiple indexable cutting edges, reducing the cost per edge and improving overall tool utilisation in production environments.

What corner radius and thickness does the insert offer?
This insert features a 1.2 mm corner radius and a plate thickness of 6.35 mm, offering a compromise between edge strength and surface finish capability.

Which chipbreaker is fitted to the insert?
The insert is supplied with a double-sided chipbreaker, optimised for stable chip control during continuous turning operations and suitable for the specified material range.

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.