DNGA150408SM-S WCH10C Wendeplatten - Walter Tools

Take advantage of the combination of a coated ceramic grade (WCH10C), a robust rhombic 55° geometry and a 0.8 mm corner radius for reliable hard‑turning performance; order directly via Metav Werkzeuge or ask the consultants for application support.

DNGA150408SM-S WCH10C turning insert — coated ceramic grade for hardened Stahl, rhombic 55°

The DNGA150408SM-S WCH10C is a negative‑rake, rhombic turning insert designed for hard and hardened Stahl turning applications

• DNGA150408SM-S WCH10C by Walter Tools
• Coated ceramic grade WCH10C for hard turning
• Rhombic 55° shape, 0.8 mm corner radius
• Negative 0° relief for robust cutting

Durable coated ceramic for high‑temperature hard turning

The insert belongs to the Walter CBN / Hartstoff series and the WCH10C grade is a coated ceramic specifically formulated for high cutting speeds and temperature‑resistant operation. This material choice provides superior wear resistance when machining hardened or pre‑hardened Stahl (ISO group H), which translates into longer edge life and fewer tool changes. In production contexts where cycle time and tool life affect throughput, the coated ceramic composition promotes consistent performance under thermally demanding cutting conditions.

Geometry that stabilises the cut and improves repeatability

The rhombic 55° form combined with a 0.8 mm corner radius provides a balance between edge strength and surface finish. A 55° approach angle reduces radial cutting forces for many turning setups, while the 0.8 mm radius increases robustness against edge chipping during interrupted cuts or small depth variations. These geometric choices deliver repeatable dimensional control and help maintain surface integrity over longer tool runs, supporting predictable process capability in both single‑piece and batch production.

Secure chip control and reliable cutting action

Equipped with the chipbreaker S and a negative 0° relief, the insert is configured for safe chip formation and evacuation when working tough, brittle surfaces. The negative relief strengthens the cutting edge and supports stable cutting under heavy engagement, whereas the S‑type chipbreaker helps to break chips into manageable segments—reducing the risk of entanglement and improving machining continuity. The result is more consistent part quality and reduced interruptions from problematic chip flow.

Practical integration into turning setups and selection guidance

The DNGA designation indicates compatibility with toolholders designed for DNGA‑type indexable inserts; the plate size (15) and thickness (04) make it suitable for a wide range of standard turning tool blocks. When selecting the insert, match the WCH10C grade to operations on hardened or pre‑hardened Stahl where high speed and thermal stability are required. For tailored recommendations on insert grade, toolholder pairing and process parameters, technical consultation is available to ensure the cutting solution is aligned with the workpiece material and production goals.

Contact Metav Werkzeuge today for tailored advice on applying Walter Tools coated ceramic turning inserts and to arrange application‑specific recommendations from our technical consultants.

Technical Data

• Article number: DNGA150408SM-S-WCH10C-WALTER
• ISO designation: DNGA150408SM-S WCH10C
• Series: Walter CBN / Hartstoff

Facts

• Plate size: 15
• Thickness: 04
• Corner radius: 0.8 mm
• Relief angle: 0° (negative)

Special features

• Grade: WCH10C (coated ceramic)
• Chipbreaker: S
• Shape: Rhomb 55°
• Material application: Hardened Stahl (ISO H)

FAQ

What materials is this insert suited for?
The DNGA150408SM-S WCH10C insert by Walter Tools is intended primarily for hardened Stahl (ISO group H) and pre‑hardened Stahl applications where wear resistance and thermal stability are required.

How does the WCH10C grade differ from standard carbide inserts?
WCH10C is a coated ceramic grade designed for high cutting speeds and temperature resistance; compared with standard carbide grades, it offers greater wear resistance on hardened workpieces at elevated temperatures.

Can the insert handle interrupted cuts?
The combination of a negative 0° relief and the chipbreaker S gives the insert robust edge support and improved chip control, making it well suited to many interrupted cutting conditions on hardened Stahl.

Which toolholders are compatible with DNGA inserts?
The DNGA150408SM‑type insert fits toolholders specified for DNGA indexable turning inserts; consult Metav Werkzeuge for matching holders and clamping details for a given turning machine and application.

Is the insert suitable for finishing or roughing operations?
The geometric balance—rhombic 55° and 0.8 mm corner radius—provides a compromise between strength and finish: suitable for light to medium finishing for hardened Stahl and for stable roughing where edge integrity matters.

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

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