CNMG120416-RM5 WSM20S WSM20S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger‑tec Silver coating, RM5 chip control and a robust rhombic 80° geometry for reliable turning of stainless steel and heat‑resistant superalloys; order directly via Metav Werkzeuge or contact our technical consultants for machining recommendations

CNMG120416-RM5 WSM20S indexable turning insert (Tiger‑tec Silver) for stainless steel & superalloys — Walter Tools

CNMG120416-RM5 WSM20S is an indexable turning insert optimised for heavy and challenging turning tasks on stainless steel and heat‑resistant superalloys, providing stable cutting edges and secure chip control

• Tiger‑tec Silver coated carbide grade WSM20S
• RM5 chipbreaker for secure chip control
• Rhombic 80° form with 1.6 mm corner radius
• Negative 0° rake for stable cutting

Consistent performance on stainless steel and superalloys

The combination of the WSM20S coated carbide grade and the Tiger‑tec Silver series delivers an engineered balance between wear resistance and edge stability that is essential when machining stainless steel or heat‑resistant superalloys. The insert’s composition supports controlled wear and avoids premature flank damage, which improves process reliability and reduces unplanned tool changes. The integrated RM5 chipbreaker contributes to predictable chip formation, lowering the risk of built‑up edge formation and improving surface integrity in each pass.

Geometry engineered for secure cutting and long tool life

A rhombic 80° insert form with a 1.6 mm corner radius and 0° (negative) rake offers a stable cutting geometry that tolerates interrupted cuts and heavy engagement. The modest corner radius increases edge strength for roughing while preserving acceptable surface finish during finishing passes. The negative rake angle stabilises the cutting action under high radial loads, which makes this grade suitable for operations demanding robust edge retention. Coated cemented carbide construction ensures thermal resistance and adhesion of the coating under elevated cutting temperatures.

Productivity benefits and process security in production

Using a dedicated grade from the Tiger‑tec Silver family yields measurable production advantages: improved tool life and more consistent cutting forces lower cycle time variability and decrease rework rates. The WSM20S grade is designed for the ISO groups S and M, meaning it is appropriate for both superalloys and stainless steel — materials known for poor heat conduction and a tendency to work‑harden. With better chip control and edge stability, the insert supports steady production runs and predictable maintenance intervals, contributing to overall process efficiency.

Application guidance and machining behaviour

This insert is suitable for a range of turning tasks where robustness is required: heavy roughing of bars and shafts, semi‑finishing passes where interrupted cuts occur, and applications involving materials that demand high thermal and mechanical stability. The RM5 chipbreaker is tuned for secure chip flow on sticky, work‑hardening materials; the rhombic 80° shape offers versatility across insert seatings and holders. For fine finishing on stainless steel, consider machining parameters that reduce built‑up edge risk and favour stable coolant and feed settings to exploit the insert’s coated carbide advantages.

Contact Metav Werkzeuge for tailored grade selection and application advice on Walter Tools inserts — info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• SKU: CNMG120416-RM5-WSM20S-WALTER
• Article designation: CNMG120416-RM5 WSM20S
• Product type: indexable turning insert

Facts

• Grade/series: WSM20S / Tiger‑tec Silver
• Shape: rhombic 80°
• Corner radius: 1.6 mm
• Rake: 0° (negative)
• Thickness: 04
• Size: 12

Special features

• Chipbreaker: RM5
• Material compatibility: S / M
• Application: heavy machining, interrupted cut capability
• Coated cemented carbide for thermal stability
• Tolerance class: M
• Execution: G

FAQ

What materials is this insert designed for?
The CNMG120416‑RM5 WSM20S insert (Walter Tools, Tiger‑tec Silver) is designed primarily for stainless steel and heat‑resistant superalloys (ISO groups M and S).

How does the RM5 chipbreaker influence machining?
The RM5 chipbreaker on the CNMG120416‑RM5 promotes secure chip control and predictable chip shapes, which helps to reduce built‑up edge and improve surface quality when machining sticky or work‑hardening materials.

Which operations suit the rhombic 80° form best?
Rhombic 80° inserts are versatile for facing and turning operations; the CNMG120416‑RM5 excels in roughing and semi‑finishing where strong edge support and resistance to interruption are required.

Is the WSM20S grade suitable for high temperatures?
Yes, the WSM20S grade within the Tiger‑tec Silver family is formulated for enhanced thermal resistance and edge stability under the elevated temperatures typical when machining stainless steel and superalloys.

Can this insert be used for finishing passes?
While primarily offering robustness for heavier cuts, the insert can be used for semi‑finishing and certain finishing passes depending on the chosen corner radius and cutting parameters.

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

Protected trademarks and trade names remain the property of their respective owners. Brand names and protected trade names are mentioned solely for explanation. There is no connection between our company and the named brands. The offered item is original, factory‑new goods of the manufacturer.