SPMW060304-A57 WAK15 Wendeplatten - Walter Tools

Take advantage of the combination of a dedicated WAK15 aluminium grade, precise square geometry and an A57 chipbreaker for controlled chip formation and consistent surface finish; order the insert directly via Metav Werkzeuge or ask our consultants for application advice.

SPMW060304-A57 WAK15 milling indexable insert – square 90°, 11° relief – Walter Tools

The SPMW060304-A57 WAK15 is a square 90° milling indexable insert designed for machining aluminium and other non-ferrous metals, offering a sharp uncoated carbide grade and a chipbreaker tuned for stable aluminium cutting.

• WAK15 grade for aluminium and non-ferrous metals
• Square 90° insert with 0.4 mm corner radius
• 11° relief angle for stable cutting performance
• A57 chipbreaker optimised for aluminium chips

Higher throughput and cleaner surfaces for non-ferrous machining

The uncoated WAK15 cemented carbide grade is formulated for aluminium and similar materials, which means a sharp cutting edge and low tendency for material adhesion. In production environments where consistent surface finish and minimal rework are priorities, this grade reduces built-up edge and helps maintain dimensional accuracy across longer tool lives. The combination of a precise edge geometry and an aluminium-optimised chipformer supports faster material removal with fewer interruptions, enabling more productive milling cycles and predictable process outcomes.

Geometry that balances edge strength and fine finishing

A square 90° shape with a 0.4 mm corner radius supplies good edge stability while allowing fine surface quality on faces and shoulders. The 11° relief angle reduces rubbing behind the cutting edge, improving thermal behaviour and lowering cutting forces in soft, gummy materials such as aluminium. For operators unfamiliar with these terms: the relief angle prevents the insert flank from dragging on the workpiece, while the corner radius increases edge robustness, so finishing passes retain their profile without premature chipping.

Chip control and process reliability with the A57 breaker

The A57 chipbreaker geometry is tailored to aluminium chip forms, promoting short, controllable chips instead of long, tangled swarf. Reliable chip control reduces machine downtime and the need for secondary chip handling, which contributes directly to lower production costs and safer shop-floor conditions. In automated or lights-out production, predictable chip behaviour is a practical advantage that supports uninterrupted cycles and consistent part quality.

Practical fit for systemised tooling and repeatable results

The insert is part of the Walter N‑Sortensystem, which simplifies grade selection for non-ferrous applications and eases tool management across multiple machines. Because the insert is uncoated and designed for soft metals, it can be used where extremely sharp edges are required for delicate finishes or where coating would promote material build-up. When tool change intervals and repeatability matter, the standardised form and tolerances (class M) help maintain process stability across batches.

For tailored cutting data, batch needs or to discuss integration with existing toolholders, contact Metav Werkzeuge for application-oriented advice on Walter Tools inserts.

Technical Data

• SKU: SPMW060304-A57-WAK15-WALTER
• Article designation: SPMW060304-A57 WAK15
• Manufacturer: Walter Tools
• Product type: milling indexable insert

Facts

• Grade: WAK15
• Series: Walter N-Sortensystem
• Shape: Square 90°
• Relief angle: 11°
• Corner radius: 0.4 mm
• Thickness: 03
• Chipbreaker: A57

Special features

• Uncoated cemented carbide for aluminium machining
• Tolerance class: M
• Execution: W
• Suitable material group: N (non-ferrous metals)
• Application focus: aluminium and NE-metals

FAQ

Which materials is the SPMW060304-A57 WAK15 suited for?
The SPMW060304-A57 WAK15 milling indexable insert from Walter Tools is designed specifically for aluminium and other non-ferrous metals (material group N) and performs best where sharp edges and low adhesion are required.

Is the WAK15 grade coated or uncoated?
WAK15 is an uncoated cemented carbide grade optimised for aluminium applications, offering sharp cutting edges and reduced tendency for built-up edge compared with coated grades in these materials.

What advantages does the square 90° shape and 0.4 mm radius provide?
The square 90° geometry with a 0.4 mm corner radius gives a good balance of edge strength and surface finish, enabling stable facing and shoulder milling while maintaining dimensional accuracy on finished parts.

How does the A57 chipbreaker affect machining?
The A57 chipbreaker is tuned for aluminium chip formation, promoting short, easily managed chips and improving process reliability by preventing long, entangling swarf that can interrupt automated production.

Can this insert be used for stainless steel or hardened materials?
The SPMW060304-A57 WAK15 insert is not specified for stainless steel or hardened steels; it is intended for non-ferrous materials such as aluminium, as indicated by the N material application.

Manufacturer/Responsible: Walter Deutschland GmbH; Derendinger Straße 53; 72072 Tübingen, Germany; info@walter-tools.com

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