VNMG 160404 AH6235 Wendeplatten - Tungaloy

Benefit from a PVD‑coated AH6235 carbide grade and a precise 0.4 mm corner radius for consistent performance in demanding turning tasks; order directly via Metav Werkzeuge or consult their specialists for holder and chipbreaker selection.

VNMG 160404 AH6235 – VNMG160404-SM indexable turning insert by Tungaloy for turning applications

A VNMG160404-SM AH6235 indexable insert engineered for external and internal turning, optimised for rostfreie Stähle and interrupted cuts

• PVD-coated AH6235 grade for stainless steel
• 0.4 mm corner radius for fine finishing
• ISO-standard VNMG form, 35° cutting angle
• Cylindrical hole, 4.76 mm thickness

Consistent ISO compatibility for reliable setup and fast changeovers

The insert follows the ISO standard VNMG geometry, so mechanical compatibility with the holder is determined by form, clearance angle, tolerance class, fastening method, size and thickness. This standardisation reduces setup time and minimises alignment errors when replacing cutting edges in production, allowing predictable machining cycles and repeatable part quality. The defined interface between insert and clamping system supports rapid reconditioning of tool assemblies and consistent clamping forces for repeatable cutting conditions.

Grade and coating tailored for demanding stainless applications

The AH6235 grade is a PVD‑coated carbide developed for tougher applications, offering improved resistance to built‑up edge and breakouts during interrupted cuts. The SM chipbreaker controls chips in difficult-to-machine alloys and rostfreie Stähle, promoting steady metal removal and reducing secondary operations. When employed in turning, the combination of this grade and coating enhances edge stability and extends effective cutting life under oscillating loads and variable cutting conditions.

Geometry that balances surface finish with edge strength

With a 0.4 mm corner radius and a 35° cutting angle, the rhombic VNMG form delivers a compromise between fine surface finish and robust cutting edge. The relatively small radius improves dimensional accuracy and helps achieve tighter tolerances on turned faces, while the rhombic shape and cylindrical hole ensure secure seating and consistent orientation in the clamp. The plate thickness of 4.76 mm contributes to rigidity and resistance against edge chipping when machining interrupted features.

System-level benefits: productivity, predictability and integration

Integrated into a system consisting of the ISO insert, a matched external holder or boring bar, and the correct shim/clamping set, this insert supports higher process reliability. The PVD coating and carbide substrate reduce flank wear, leading to longer tool life and fewer indexings per workpiece batch. For production environments where repeatability and low variance are critical, the insert helps increase overall productivity and reduce unexpected downtime by delivering stable cutting behaviour and easier tool inventory management.

Discuss the Tungaloy VNMG160404-SM AH6235 PVD‑coated insert with Metav Werkzeuge to confirm the optimal holder, chipbreaker and clamping combination for the intended turning application; contact Metav Werkzeuge at info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 6890141-Tungaloy
• Manufacturer SKU: TUN6890141
• Model series: ISO turning indexable inserts

Facts

• Geometry: VNMG 160404
• Corner radius: 0.4 mm
• Cutting angle: 35°
• Plate thickness: 4.76 mm
• Plate size: 16 mm

Special features

• Material: carbide
• Coating / grade: PVD-coated AH6235
• Chipbreaker: SM
• Plate form: rhombic
• Hole: with cylindrical hole
• Application: turning (external and internal)
• Clearance angle: 0°

FAQ

What materials is this insert designed for?
The VNMG160404-SM AH6235 insert is specified for rostfreie Stähle and similar tough alloys; the AH6235 PVD-coated carbide grade improves resistance to built-up edge in such materials.

How does the SM chipbreaker benefit interrupted cuts?
The SM chipbreaker on the VNMG160404-SM AH6235 controls chip formation and reduces the risk of edge breakouts during interrupted cutting, promoting steady metal removal and longer edge life.

Can this insert be used for internal turning?
Yes, the indexable VNMG form and size make the insert suitable for both external and internal turning when paired with an appropriate boring bar or internal holder.

What influence does the 0.4 mm corner radius have on part finish?
A 0.4 mm corner radius on this insert helps achieve finer surface finishes and tighter dimensional control while maintaining sufficient edge strength for general turning tasks.

Which parameters determine holder compatibility for this insert?
Compatibility requires matching the VNMG form, clearance angle (0° in this case), tolerance class, fastening method, plate size and thickness; these factors ensure correct seating and clamping stability.

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.