TNMG160404-FM5 WSM20S WSM20S Wendeplatten - Walter Tools

Taking advantage of the Tiger·tec Silver technology and the WSM20S grade, this triangular insert delivers stable edge life and reliable chip control when machining difficult-to-cut alloys. The compact 0.4 mm corner radius and negative 0° rake provide robust cutting performance for demanding turning tasks. Order the insert directly via Metav Werkzeuge or consult our specialists for application advice.

TNMG160404-FM5 WSM20S Walter Tools — triangular indexable turning insert for rostfreier Stahl and superalloys

TNMG160404-FM5 WSM20S is a triangular indexable turning insert engineered for heavy and interrupted cuts in rostfreier Stahl and heat‑resistant superalloys, combining a robust geometry with Walter Tools’ Tiger·tec Silver coating.

• Tiger·tec Silver coated carbide for heat resistance
• Grade WSM20S optimised for rostfreier Stahl and S materials
• FM5 chipbreaker for predictable chip formation
• 60° triangular form with 0.4 mm corner radius

Precision and reliability where interrupted cuts occur

The indexable insert combines a coated carbide substrate with the Tiger·tec Silver coating to resist thermal loading and retain a stable cutting edge. For workshops that face recurring challenges with rostfreier Stahl and high‑temperature alloys, the insert’s WSM20S grade has been developed to reduce built‑up edge and preserve surface integrity. The triangular 60° geometry ensures three usable cutting edges per insert, while the 0.4 mm corner radius gives a compromise between edge strength and profile accuracy. In practice this means fewer insert changes and more consistent component quality during series production.

Controlled chip formation and consistent process security

The integrated FM5 chipbreaker is designed for reliable chip control across a range of cutting conditions, minimising tangling and enhancing operator safety. A negative rake of 0° (negative) increases margin strength for interrupted cuts and heavy cross‑section removal, supporting steady cutting forces and predictable tool life. For customers with limited metrology on the shop floor, this equates to fewer rejects and a lower risk of unplanned stoppages, contributing to improved overall equipment effectiveness.

Machining benefits and explanation for non‑specialists

Coated carbide means a hard substrate with a thin protective layer that reduces friction and improves wear resistance; the Tiger·tec Silver coating specifically helps at elevated temperatures typical when turning rostfreier Stahl and superalloys. The chipbreaker geometry moderates chip shape and evacuation; in simple terms, it prevents long, stringy swarf and facilitates consistent surface finish. The triangular shape provides economical indexability, offering three edges per insert and keeping replacement costs predictable.

Application guidance and workshop integration

The insert is suitable for a wide set of turning operations, from general facing to heavy roughing in challenging materials. Tooling systems compatible with TNMG‑style inserts will accommodate the TNMG160404‑FM5 WSM20S without special adaptation; clamping and seat conformity remain the key factors for repeatable results. For production environments seeking to raise throughput while maintaining component accuracy, the combination of a robust geometry and the WSM20S grade supports extended runs with fewer interventions. Consider pairing the insert with stable holders and appropriate cutting data for maximal benefit.

Contact Metav Werkzeuge to discuss suitable holders, cutting data and application trials for the TNMG160404‑FM5 WSM20S from Walter Tools — call +49 2822 7131930 or email info@metav-werkzeuge.com

Technical data

• Article number: TNMG160404-FM5-WSM20S-WALTER
• Description: Drehwendeschneidplatte TNMG160404-FM5 WSM20S Walter Tools
• Manufacturer: Walter Tools
• Product type: Drehwendeschneidplatte
• Series: Tiger-tec Silver

Core data

• Size: 16 mm
• Thickness: 4.0 mm
• Corner radius: 0.4 mm
• Free angle: 0° (negative)
• Geometry: Triangle 60°
• Tolerance class: M

Special features

• Grade: WSM20S (coated carbide)
• Chipbreaker: FM5
• Material suitability: rostfreier Stahl (M), heat‑resistant superalloys / Titanium (S)
• Designation: TNMG160404-FM5
• Typical use: Heavy turning and interrupted cuts

FAQ

What materials is this insert intended for?
The TNMG160404‑FM5 WSM20S is formulated primarily for machining rostfreier Stahl and heat‑resistant superalloys (material groups M and S), using the Tiger·tec Silver coating to improve thermal stability.

How does the FM5 chipbreaker affect machining?
The FM5 chipbreaker on the TNMG160404‑FM5 promotes short, controllable chips and consistent chip flow, which improves surface finish and reduces the risk of chip entanglement during turning operations.

Can this insert be used for interrupted cuts?
Yes. The negative 0° rake and the 0.4 mm corner radius make the insert robust for interrupted cuts and operations with fluctuating engagement, enhancing edge stability.

How many cutting edges are available per insert?
The triangular 60° form provides three usable cutting edges per insert; indexing restores a fresh cutting edge quickly and economically.

Is the TNMG160404‑FM5 WSM20S suitable for finishing operations?
While optimised for tough materials and general turning, the grade and geometry can achieve acceptable finishes; for fine finishing, a smaller corner radius or a different grade may be preferable depending on the application.

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