DNMG150404-FM5 WSM20S WSM20S Wendeplatten - Walter Tools

Maximise process control and tool life with the combination of the Tiger·tec Silver coating and the proven FM5 chipbreaker; the rhombic geometry and 0.4 mm corner radius deliver consistent surface quality and stable cutting for stainless steel and high-temperature alloys—order the DNMG150404-FM5 WSM20S through Metav Werkzeuge or consult their specialists for application-specific recommendations

DNMG150404-FM5 WSM20S – Indexable turning insert, Tiger·tec Silver, Walter Tools

The DNMG150404-FM5 WSM20S is a rhombic 55° indexable insert designed for demanding turning operations on stainless steel and superalloys, offering robust edge stability and reliable chip control

• Tiger·tec Silver coating
• Optimised for stainless steel (M)
• FM5 chipbreaker for reliable chips
• Rhombic 55° form, 0.4 mm corner radius

Reliable grade and coating for tougher materials

The insert combines the WSM20S grade within the Tiger·tec Silver family to address demanding machining tasks. The coated carbide construction supports elevated temperatures and assists secure chip formation when cutting stainless steel and alloys in group S. As a result, the cutting edge remains stable under thermal load, which reduces unexpected flank wear and contributes to longer intervals between indexings. This behaviour translates directly into improved cycle-time predictability and fewer unplanned tool changes, supporting a more efficient production flow.

Geometry that stabilises cutting and improves surface finish

The Rhombic 55° geometry together with a 0.4 mm corner radius and a negative 0° relief angle creates a cutting geometry that balances edge strength with achievable surface quality. The moderate corner radius absorbs radial loads and helps prevent notch wear when machining work-hardened surfaces, while the rhombic form provides multiple cutting edges for cost-effective indexing. The integrated FM5 chipbreaker is tuned to produce manageable chip shapes on sticky materials, reducing the risk of built-up edge and enhancing process reliability during semi-finish and finishing passes.

Process benefits, tool life and practical handling

This insert supports a consistent and economical machining strategy: the grade’s thermal resistance and the chip control help to extend tool life and maintain dimensional consistency across batches. Compatibility with standard DNMG toolholders allows seamless integration into existing turning setups. The combination of process security and repeatable edge performance makes the insert well suited to manufacturers who require stable output from stainless steel and high-temperature alloy components. For advice on feeds, speeds and clamping, the technical team at Metav Werkzeuge can provide practical recommendations tailored to specific machines and operations.

For machining stainless steel and superalloys with high reproducibility, request application guidance from Metav Werkzeuge or order the Walter Tools DNMG150404-FM5 WSM20S through Metav Werkzeuge today

Technical data

• Article number: DNMG150404-FM5-WSM20S-WALTER
• Designation: DNMG150404-FM5 WSM20S
• Type: Indexable turning insert (Drehwendeschneidplatte)
• Manufacturer: Walter Tools

Facts

• Inscribed circle: 15
• Corner radius: 0.4 mm
• Relief angle: 0° (negative)
• Thickness code: 04
• Tolerance class: M

Special features

• Grade: WSM20S
• Series: Tiger·tec Silver
• Chipbreaker: FM5
• Suitable for: stainless steel (M), superalloys/titanium (S)
• Execution: G
• Plate form: Rhombus 55°
• Plate size: 15
• Plate thickness: 04

FAQ

Is this insert suitable for stainless steel?
Yes. The WSM20S grade in the DNMG150404-FM5 WSM20S is specifically developed for stainless steel (ISO group M) and offers thermal stability and controlled chip formation on these materials.

What does the WSM20S designation indicate?
WSM20S denotes the Walter Tools cutting grade within the Tiger·tec Silver series; it identifies a coated carbide formulation optimised for tough-to-machine materials and improved edge life.

How does the FM5 chipbreaker affect performance?
The FM5 chipbreaker on the insert promotes consistent, controllable chips during turning, reducing the likelihood of built-up edge and supporting uninterrupted operation when machining sticky or strain-hardened materials.

What geometry is signified by the DNMG150404 code?
The DNMG150404 portion of the designation corresponds to the insert geometry and dimensions used by Walter Tools: rhombic 55° form, size 15, thickness code 04 and a corner radius of 0.4 mm, which together determine mounting and cutting behaviour.

Can this insert be used on superalloys and titanium?
Yes. The material suitability includes superalloys and titanium (ISO group S), where the grade’s heat resistance and edge stability help manage difficult thermal and mechanical loads.

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

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