DCMT11T302-FM4 WMP20S WMP20S Wendeplatten - Walter Tools

The combination of a Tiger·tec Silver coating, a specialised FM4 chipbreaker and a compact 0.2 mm corner radius delivers reliable edge stability and consistent chip formation for rostfreier Stahl machining; order direct via Metav Werkzeuge or request tailored advice from our consultants for process integration.

DCMT11T302-FM4 WMP20S indexable turning insert — Walter Tools, Tiger·tec Silver, for rostfreier Stahl

The DCMT11T302-FM4 WMP20S is an indexable turning insert designed for medium to robust machining of rostfreier Stahl, combining a wear-resistant coating and a chipbreaker tuned for secure swarf control.

• Walter WMP20S grade for rostfreier Stahl machining
• Tiger·tec Silver coating enhances wear resistance
• FM4 chipbreaker for secure chip control
• Rhombic 55° form with 0.2 mm corner radius

Consistent edge life through advanced coating technology

The coated-carbide grade from the Tiger·tec Silver family provides a controlled friction profile and enhanced thermal stability, which translates into longer tool life and fewer index changes during production. The WMP20S substrate is formulated specifically for rostfreier Stahl where toughness and a tendency to build up material on the cutting edge are common challenges. By combining a robust substrate with a modern PVD/CVD-inspired top layer, this insert reduces flank wear and supports a stable cutting edge under the thermal loads typical for these alloys. The result is a measurable improvement in process repeatability and reduced sorting of finished parts.

Reliable chip control for uninterrupted turning

The integrated FM4 chipbreaker is shaped to guide and break swarf consistently in turning operations, lowering the risk of re-cutting and tool damage. Good chip control reduces cycle interruptions and supports unattended machining cycles, particularly when paired with the Rhombic 55° geometry that aids in controlled material shear. For production environments where throughput and machine uptime matter, the chipbreaker helps maintain consistent surface quality and prevents entanglement of chips around tooling and workpieces.

Geometry tuned for finishing and medium-cutting tasks

A 0.2 mm corner radius offers a balance between edge strength and surface finish capability: it supports an improved tool life compared with sharper radii while still permitting a fine external surface. The 7° clearance angle helps to reduce rubbing on the flank face, lowering heat generation and minimising the risk of built-up edge during light to medium cuts. The rhomboid form provides flexible approach angles, allowing the insert to be used in multiple toolholders and orientations while maintaining predictable cutting behaviour.

Integration and process benefits for production shops

As an indexable insert from Walter Tools’ Tiger·tec Silver range, this component simplifies tooling logistics: one insert grade handles a broad range of rostfreier Stahl batches, reducing tool change frequency and inventory complexity. The combination of coating and chipbreaker means shorter set-up times and fewer trial cuts when transferring programmes between machines. For manufacturing engineers, this translates into a more predictable cost per component and easier benchmarking of cycle times under varying conditions.

For robust rostfreier Stahl turning with proven edge stability, contact Metav Werkzeuge for stock availability and application advice on Walter Tools inserts — eMail: info@metav-werkzeuge.com, Tel: +49 2822 7131930 — Metav Werkzeuge will assist with grade selection and process recommendations.

Technical data

• Article number: DCMT11T302-FM4-WMP20S-WALTER
• Designation: DCMT11T302-FM4 WMP20S
• Manufacturer: Walter Tools
• Product type: indexable turning insert

Facts

• Plate size: 11
• Plate thickness: T3
• Clearance angle: 7°
• Corner radius: 0.2 mm
• Plate form: Rhombus 55°
• Grade family: Tiger·tec Silver
• Grade: WMP20S

Special features

• Chipbreaker: FM4
• Coating: Tiger·tec Silver (coated carbide)
• Material group: M (rostfreier Stahl)
• Tolerance class: M
• Series description: WMP20S designed for medium to robust rostfreier Stahl conditions

FAQ

Which materials is this insert suitable for?
The DCMT11T302-FM4 WMP20S insert from Walter Tools is specified for rostfreier Stahl (material group M) and is optimised to handle the toughness and heat sensitivity associated with these alloys.

What benefits does the Tiger·tec Silver coating provide?
The Tiger·tec Silver coating on the WMP20S grade enhances wear resistance and thermal stability, helping to extend edge life and maintain consistent dimensional accuracy during extended turning cycles.

How does the FM4 chipbreaker affect machining?
The FM4 chipbreaker promotes predictable chip formation and breakage, improving swarf evacuation and reducing the likelihood of chip-related interruptions in continuous turning operations.

Is the 0.2 mm corner radius suitable for finishing passes?
Yes, the 0.2 mm corner radius gives a compromise between edge strength and surface quality, making the insert appropriate for light to medium finishing passes where a good surface and reliable tool life are required.

Can this insert be used in standard DCMT toolholders?
The DCMT11T302-FM4 geometry follows standard DCMT form factors and is compatible with toolholders designed for rhombic 55° DCMT inserts; ensure correct clamping and seat conditions for optimal performance.

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 product names are mentioned for explanation only. There is no affiliation between our company and the named manufacturers; the offered item is original, brand-new material from the manufacturer.