DNMG150408-NMS WSM20S WSM20S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coating and a robust negative rake for secure chip control and long edge life; the result is reliable machining of stainless steels and heat‑resistant superalloys with consistent surface quality. Order the DNMG150408‑NMS WSM20S turning insert directly via Metav Werkzeuge or contact our consultants for tailored machining advice.

DNMG150408‑NMS WSM20S indexable turning insert – Tiger·tec Silver, for stainless steel and superalloys | Walter Tools

A DNMG150408‑NMS WSM20S indexable turning insert engineered for productive turning of rostfreie Stähle and high‑temperature alloys, combining a tough negative rake and a stable corner geometry for demanding roughing and semi‑finishing tasks

• Tiger·tec Silver coated grade WSM20S
• Optimised for stainless steel and superalloys
• Rhombic 55° geometry, DNMG 15 size
• 0.8 mm corner radius, 0° negative rake

Productivity and predictable chip control for difficult materials

The combination of the Tiger·tec Silver coating and the WSM20S grade delivers a coated‑carbide solution that supports stable chip formation when machining challenging alloys. Designed specifically for rostfreie Stähle (ISO group M) and heat‑resistant superalloys or titanium (ISO group S), the insert gives a wider process window and reduced risk of built‑up edge. This translates into fewer interruptions on the shop floor and a measurable improvement in cutting‑edge life, helping to maintain consistent cycle times in series production.

Geometry that protects the edge and improves surface quality

A rhombic 55° geometry with a 0.8 mm corner radius and 0° negative rake produces a robust cutting edge that tolerates interrupted cuts and higher radial depths. The DNMG format provides a practical compromise between edge strength and access to features, resulting in reliable dimensional repeatability and improved surface finish compared with more fragile geometries. The chipbreaker design supports controlled chip flow, reducing workpiece rework and increasing first‑pass yields.

Shop‑floor advantages: fewer tool changes, steadier processes

Using this insert supports greater process stability and lower tooling consumption through longer edge life and consistent machining behaviour. The coated grade reduces thermal and abrasive wear during heavy engagement, while the negative rake improves resistance to mechanical shock. These characteristics combine to lower tooling overheads and reduce non‑productive time, making the insert a suitable choice for production environments where predictability and throughput are priorities.

Practical application guidance without over‑specification

The insert is intended for both heavy and interrupted turning applications in rostfreie Stähle and superalloys where tool life and edge stability are critical. Choose cutting parameters that favour steady chip evacuation and, where applicable, use coolant strategies aligned with the workpiece material. The geometry and coating are optimised for demanding materials; the component will benefit from stable fixturing and consistent tool‑to‑work alignment to fully realise the grade’s performance advantages.

Contact Metav Werkzeuge today for a machining appraisal or to request a supply recommendation for the Walter Tools DNMG150408‑NMS WSM20S turning insert

Technical data

• Article number: DNMG150408‑NMS‑WSM20S‑WALTER
• Product label: Drehwendeschneidplatte DNMG150408‑NMS WSM20S Walter Tools
• Manufacturer: Walter Tools
• Product type: indexable turning insert
• Grade series: Tiger·tec Silver
• Grade: WSM20S
• ISO designation: DNMG150408‑NMS

Facts

• Insert shape: Rhombus 55°
• Size designation: 15
• Thickness: 04
• Corner radius: 0.8 mm
• Free angle / rake: 0° (negative)
• Chipbreaker: NMS
• Tolerance class: M

Special features

• Coating: Tiger·tec Silver (coated carbide)
• Material groups: stainless steel (M), heat‑resistant superalloys / titanium (S)
• Application: heavy and interrupted turning, semi‑finishing
• Robust geometry for improved edge life
• Stable chip formation and controlled chip flow

FAQ

What materials is the DNMG150408‑NMS WSM20S best suited for?
The DNMG150408‑NMS WSM20S insert is formulated for rostfreie Stähle (ISO group M) and heat‑resistant superalloys or titanium (ISO group S), providing thermal and mechanical resistance for these demanding materials.

How does the Tiger·tec Silver coating benefit performance?
The Tiger·tec Silver coating on the WSM20S grade improves wear resistance and heat management, which contributes to stable chip formation and extended cutting‑edge life under heavy cutting conditions.

What advantages does the rhombic 55° geometry provide?
The rhombic 55° shape delivers a balance of accessibility and strength; combined with a 0.8 mm corner radius and negative rake, it enhances edge robustness and supports consistent surface quality during interrupted cuts.

Is this insert suitable for roughing and semi‑finishing?
Yes, the insert’s robust geometry and coated grade make it appropriate for both roughing operations that demand high edge stability and semi‑finishing where surface integrity matters.

Which chipbreaker is fitted and what is its effect?
The insert is supplied with the NMS chipbreaker, engineered to promote controlled chip flow and reduce the likelihood of erratic chips that can affect surface finish and tool life.

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

Protected trademarks and trade names are the property of their respective owners. Brand names and protected trade names are mentioned for explanatory purposes only. There is no connection between our company and the mentioned brands. The offered article is original, brand‑new goods of the manufacturer.