TNMG220412-RM5 WSM20S WSM20S Wendeplatten - Walter Tools

Take advantage of the combination of high thermal resistance, reliable chip control and robust edge stability for demanding turning operations; order the TNMG220412-RM5 WSM20S directly via Metav Werkzeuge or ask the consultants for application advice.

TNMG220412-RM5 WSM20S – Triangle 60° indexable insert with Tiger·tec Silver coating (Walter Tools)

TNMG220412-RM5 WSM20S is an indexable turning insert engineered for heavy-duty machining of rostfreier Stahl and heat-resistant superalloys, offering a stable cutting edge and optimised chip control.

*Tiger·tec Silver coated carbide
*Optimised RM5 chipformer
*Designed for rostfreier Stahl & superalloys
*Triangle 60° geometry, 1.2 mm corner radius

Stable cutting in rostfreier Stahl and superalloys for consistent productivity

The WSM20S grade, applied in the Tiger·tec Silver family, is formulated to resist the thermal and mechanical stresses encountered when machining rostfreier Stahl and high-temperature alloys. The combination of a coated carbide substrate and a stable cutting edge reduces the risk of built-up edge and promotes reproducible performance over longer tool life. For production environments this means fewer interruptions for insert changes and a more predictable output per shift, improving machine utilisation and part-to-part consistency.

Predictable chip control and surface quality through RM5 geometry

An optimised RM5 chipformer delivers controlled chip segmentation, minimising entanglement and ensuring smooth evacuation from the cutting zone. This geometry supports steady cutting forces and contributes directly to surface finish quality on difficult-to-machine materials. Paired with the triangle 60° form and a 1.2 mm corner radius, the insert provides a reliable balance between strength at the cutting edge and the ability to sustain force during interrupted cuts or heavy feed conditions.

Geometry and coating tuned for thermal and mechanical loads

The insert’s negative 0° rake increases edge robustness under high cutting pressures, while the Tiger·tec Silver coating enhances thermal barrier properties and wear resistance. These characteristics combine to reduce flank wear and maintain dimensional accuracy over repeated indexing cycles. For operations where component tolerances and repeatability are critical, the coated carbide grade supports longer intervals between inspections and regrinds, which positively affects overall process economy.

Application-focused benefits for machining strategies

Use this indexable insert where stable edge life and chip control are priorities: roughing work on bar stock, semi-finishing of shafts, and turning operations on challenging alloys. The insert’s design reduces the likelihood of thermal softening at the cutting edge and supports consistent tool life across different batches of rostfreier Stahl or superalloy workpieces. This reliability simplifies process planning and reduces the need for frequent parameter adjustments.

Contact Metav Werkzeuge for application recommendations and availability of Walter Tools Tiger·tec Silver inserts and discuss the best machining parameters for specific rostfreier Stahl grades

Technical data

• Article number: TNMG220412-RM5-WSM20S-WALTER
• Designation: TNMG220412-RM5 WSM20S
• Product type: Turning indexable insert
• Manufacturer: Walter Tools
• Series: Tiger·tec Silver

Core data

• Insert size: 22
• Thickness code: 04
• Corner radius: 1.2 mm
• Free rake: 0° (negative)
• Shape: Triangle 60°
• Tolerance class: M
• Grade: WSM20S
• Chipformer: RM5
• Applicable material groups: S / M

Special features

• Coated carbide grade for high thermal resistance
• Optimised chip control for safe chip evacuation
• Suitable for rostfreier Stahl and heat-resistant superalloys
• Robust edge for interrupted cuts and heavy feeds
• Designed to reduce built-up edge and flank wear

FAQ

What materials is this insert suitable for? The TNMG220412-RM5 WSM20S insert is suitable for rostfreier Stahl and heat-resistant superalloys (material groups S and M), as indicated by its WSM20S grade and Tiger·tec Silver coating.

How does the RM5 chipformer affect machining? The RM5 chipformer on this turning insert improves chip segmentation and evacuation, which stabilises cutting forces and helps maintain surface finish during continuous and interrupted cuts.

What is the advantage of the negative 0° rake? A negative 0° rake increases edge strength and resistance to mechanical shock, making the insert more robust during heavy cuts and when machining difficult workpiece materials.

How large is the corner radius and why does it matter? This insert features a 1.2 mm corner radius; a larger corner radius strengthens the cutting edge and helps distribute cutting forces, which supports longer tool life under higher feeds.

Is the product part of a recognised coating family? Yes, the grade belongs to the Tiger·tec Silver series, a coated carbide family designed to enhance thermal and wear resistance for demanding turning operations.

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

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