LNMU150812-F57T WAK15 Wendeplatten - Walter Tools

The combination of a sharp WAK15 cutting grade, a rectangular geometry and a controlled F57T chipbreaker delivers dependable performance in aluminium machining; robust edge life and predictable chip formation enable efficient production. Order the insert directly via Metav Werkzeuge or consult their technical team for application advice.

LNMU150812-F57T WAK15 – Rectangular milling indexable insert for aluminium, Walter Tools

The LNMU150812-F57T WAK15 is a rectangular indexable insert engineered for productive machining of aluminium and other non‑ferrous metals, offering a negative free angle and a chipbreaker designed for stable material removal

• Walter N-series for non‑ferrous metals
• Uncoated carbide grade WAK15
• Rectangular insert, 15 mm edge
• 0° negative free angle, 1.2 mm radius

Increased throughput for non‑ferrous production runs

The insert’s combination of WAK15 uncoated cemented carbide and the F57T chipbreaker is tailored for aluminium work, where low adhesion and clean chip formation matter. The geometry reduces built‑up edge and maintains consistent cutting behaviour across a range of feed rates, which translates into shorter cycle times and fewer interruptions for tool changes. For operations that prioritise throughput, the insert’s design supports stable machining under continuous load, helping to keep setups predictable and productivity high.

Geometry and edge integrity for reliable surface quality

A rectangular geometry with a 1.2 mm corner radius and a 0° (negative) free angle gives the insert mechanical strength at the cutting edge and consistent contact conditions. This combination helps preserve the cutting edge during interrupted cuts and in applications where engagement is variable. The result is improved surface finish and reduced risk of edge chipping, so downstream processes such as finishing or assembly require less rework. The insert’s profile is particularly useful when a stronger edge is needed without sacrificing chip control in softer metals.

Integration into existing milling processes with minimal adjustment

The insert is compatible with common indexable‑insert toolholders and the Walter N‑series range, enabling straightforward integration into established tool assemblies. Because the grade is uncoated and optimised for non‑ferrous materials, coolant strategy and cutting parameters can be adjusted for chip evacuation rather than thermal protection, simplifying process setup. This makes the insert suitable for both small batch work and repeated production cycles where tool change intervals and machine uptime are critical.

Cost efficiency through predictable performance and low maintenance

Using an insert intended specifically for aluminium and similar materials reduces the frequency of unexpected tool failures and the need for manual intervention. The predictable wear behaviour of the WAK15 grade and the controlled chipbreaking action contribute to longer effective tool life in the intended material class. Fewer stoppages and reduced scrap rates support lower manufacturing costs over time while maintaining machining quality and repeatability.

Contact Metav Werkzeuge for tailored application support and procurement of Walter Tools LNMU150812-F57T WAK15 inserts; specialist advice and delivery options are available from Metav Werkzeuge.

Technical data

• Article number: LNMU150812-F57T-WAK15-WALTER
• Designation: LNMU150812-F57T
• Grade: WAK15
• Series: Walter N-Sortensystem
• Manufacturer: Walter Tools
• Type: Milling indexable insert

Data

• Plate size: 15
• Plate thickness: 08
• Corner radius: 1.2 mm
• Free angle: 0° (negative)

Special features

• Rectangular geometry
• Chipbreaker: F57T
• Uncoated cemented carbide grade
• Suitable for aluminium and non‑ferrous metals

FAQ

What materials is this insert suitable for?
The LNMU150812-F57T WAK15 insert is designed for aluminium and other non‑ferrous metals, using a chipformer and grade optimised for those material groups.

Is the cutting material coated?
No, the insert uses an uncoated cemented carbide grade WAK15, which is chosen to avoid adhesion issues when machining non‑ferrous alloys.

How does the 0° free angle affect machining?
A 0° (negative) free angle increases edge strength and stability during cutting, which benefits interrupted cuts and applications requiring robust edge integrity.

What chip control can be expected with the F57T chipbreaker?
The F57T chipbreaker promotes consistent chip formation and evacuation in aluminium machining, reducing the chance of long, tangled chips and improving process reliability.

Can this insert be used in standard Walter N‑series toolholders?
Yes, the insert is part of the Walter N‑series and is compatible with holders designed for the corresponding insert designation.

Manufacturer/Responsible: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen

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