LNHU090420R-L55T WSM35G WSM35G Wendeplatten - Walter Tools

Benefit from the combination of heat-resistant Tiger·tec Gold coating and the WSM35G grade for a stable cutting edge and reliable machining of stainless steels and superalloys; these features support higher process security and consistent productivity. Order the insert directly via Metav Werkzeuge or consult the Metav team for application advice.

LNHU090420R-L55G WSM35G – Indexable milling insert, Tiger·tec Gold coating, 0° negative rake | Walter Tools

The LNHU090420R-L55T WSM35G is a rectangular indexable milling insert engineered for robust roughing and semi-finishing operations in stainless steels and heat‑resistant superalloys, delivering stable chip control and extended edge life.

Tiger·tec Gold surface technology for heat resistance
Optimised for stainless steels and superalloys
Rectangular insert with 2 mm corner radius
0° negative rake for robust, vibration‑resistant cutting

Consistent productivity through a heat‑resistant grade

The combination of the WSM35G grade and Tiger·tec Gold coating raises the thermal stability of the cutting edge, which reduces wear mechanisms typical for tough alloys. In practice this means fewer tool changes and longer uninterrupted machining cycles; the coated indexable insert protects the substrate from thermal softening, supporting a stable cutting edge under elevated temperatures. For production environments where cycle time and repeatability matter, this translates into measurable gains in throughput and lower process variability.

Stable chip formation and reliable edge performance

The geometry and the chipbreaker L55T are designed for dependable chip formation when cutting ductile, work‑hardening materials. The insert’s 2 mm corner radius balances edge strength and surface integrity: it reduces the risk of chipping during interrupted cuts while maintaining acceptable surface finish in semi‑finishing passes. The rectangular form provides multiple effective cutting edges per indexable plate, improving economy of use and enabling straightforward clamping in standard milling bodies.

Robust cutting behaviour from the negative rake design

A 0° negative rake (negative free angle) increases the insert’s mechanical strength at the cutting edge and enhances resistance to impact and vibration—advantages during heavy or unstable machining conditions. Although a negative rake can raise cutting forces, the WSM35G composition and coating compensate by maintaining edge stability and wear resistance, making the insert suitable where robust, repeatable performance is required rather than ultra‑fine finishing.

Application guidance and material suitability

The insert is specified for material groups M and S according to ISO classification: M for stainless steels and S for heat‑resistant superalloys and titanium. This means the grade and coating address issues such as adhesion, built‑up edge and thermal load. For practical selection, pair the plate with milling cutters rated for rectangular inserts and adapt cutting speeds to account for the tougher workpiece materials—higher temperatures demand the thermal resilience that Tiger·tec Gold provides. For questions on feeds, speeds or toolholder compatibility, Metav Werkzeuge can provide tailored recommendations.

Choose Walter Tools' Tiger·tec Gold LNHU090420R-L55T WSM35G insert for dependable machining of stainless steels and superalloys and contact Metav Werkzeuge for specification support and prompt supply (email info@metav-werkzeuge.com; tel +49 2822 7131930)

Technical data

• Article number: LNHU090420R-L55T-WSM35G-WALTER
• Designation: LNHU090420R-L55T
• ISO designation: LNHU090420R-L55T WSM35G
• Product type: Fräswendeschneidplatte
• Series: Tiger-tec Gold
• Grade: WSM35G
• Manufacturer: Walter Tools

Core data

• Corner radius: 2 mm
• Free angle: 0° (negative)
• Plate size: 09
• Plate thickness: 04
• Tolerance class: H
• Chipbreaker: L55T
• Form: Rectangular

Special features

• Coating: Tiger·tec Gold (coated carbide)
• Material application: S / M
• Suitable for: stainless steels (ISO M), superalloys/titanium (ISO S)
• Execution: U

FAQ

What materials is this insert designed to machine?
The LNHU090420R-L55T WSM35G insert is formulated for ISO groups M and S, meaning it is suited for stainless steels and heat‑resistant superalloys (including certain titanium alloys), where thermal and edge‑stability demands are high.

How does the Tiger·tec Gold coating improve performance?
The Tiger·tec Gold coating increases thermal resistance and reduces adhesive wear, so the WSM35G grade maintains a sharper, more durable cutting edge under elevated temperatures typical when machining hard‑to‑cut alloys.

What is the effect of the 0° negative free angle on machining?
A 0° negative rake delivers enhanced edge strength and impact resistance, which benefits heavy roughing and interrupted cuts; the trade‑off is higher cutting forces, offset by the grade’s wear resistance to preserve edge life.

Which machining tasks suit the rectangular form and L55T chipbreaker?
The rectangular geometry combined with the L55T chipbreaker is effective for stable chip control in roughing and semi‑finishing, offering multiple indexable edges and good resistance to edge chipping during demanding operations.

Is the corner radius appropriate for finishing work?
The 2 mm corner radius favours strength and durability rather than fine finishing. It performs well in semi‑finishing where edge robustness is required; for finer surface finishes, a smaller radius and a dedicated finishing grade would be preferable.

Manufacturer: Walter Tools; Tübingen, Germany; part of the Sandvik Group

The Walter AG (brand appearance: Walter Tools) with headquarters in Tübingen is one of the world’s leading manufacturers of precision tools for metalworking and forms part of the Sandvik Group. Protected trademarks and trade names remain the property of their respective owners. Brand names and registered trademarks are mentioned solely for explanatory purposes. There is no affiliation between our company and the named brands. The offered item is an original, factory‑new product of the respective manufacturer.