DNGA150612TM-2 WBH20 A Wendeplatten - Walter Tools

Benefit from the combination of CBN-grade WBH20 and a Rhombic 55° geometry for reliable hard turning: the insert delivers high wear resistance and process stability when machining hardened and pre-hardened steels, helping to maintain consistent part quality and longer tool life. Order through Metav Werkzeuge or request cutting data for integration into production.

DNGA150612TM-2 WBH20 CBN Turning Insert, Rhombus 55° – Walter Tools

A DNGA150612TM-2 WBH20 turning insert engineered for hard turning and finishing of hardened steels and pre‑hardened materials using a CBN grade for sustained performance in high‑wear operations

• CBN grade WBH20 for hard turning
• Rhombic 55° geometry for versatile cuts
• 0° negative rake for stable machining
• 1.2 mm corner radius for robust edge

Proven wear resistance for hardened materials

The CBN‑based WBH20 grade is designed specifically for machining hardened steels, where thermal and abrasive stresses are high. The use of cubic boron nitride as the cutting material gives superior wear resistance and a stable cutting edge, so tool changes are less frequent and component tolerances remain consistent over long production runs. For operations that demand repeatable results on hard workpieces, this grade reduces unplanned downtime and supports predictable batch throughput.

Geometry that secures process stability and surface quality

The Rhombic 55° form combined with a 0° negative rake produces a mechanically strong cutting edge suited to interrupted cuts and demanding turning tasks. The 1.2 mm corner radius enhances edge strength and contributes to improved surface finish in many applications. These geometric choices mean the insert resists chipping and maintains dimensional stability, which is especially valuable in finishing passes where part integrity and surface quality are critical.

Practical application and integration into production

Suitable for hard turning and machining of pre‑hardened steel and similar high‑hardness materials, the insert is part of the Walter CBN / hard material series and is provided in the ISO designation DNGA150612TM‑2 WBH20. The robust grade and form support both roughing and finishing strategies with fewer tool changes. When integrating the insert into existing toolholders and programmes, the stable edge and optimised chip control help to reduce cycle time variability while supporting consistent component quality.

For process‑critical hard turning tasks, contact Metav Werkzeuge to receive tailored cutting parameters and integration advice for Walter Tools CBN inserts.

Technical Data

• Article number: DNGA150612TM-2-WBH20-WALTER
• Product type: Turning indexable insert (drehwendeschneidplatte)
• ISO designation: DNGA150612TM-2 WBH20
• Series: Walter CBN / hard material

Facts

• Corner radius: 1.2 mm
• Insert size: 15 mm
• Relief angle: 0° (negative)
• Thickness code: 06
• Chipbreaker: 2

Special features

• Grade: WBH20 (CBN cutting material)
• Material application: hardened steels (H)
• Tolerance class: G
• Designation without grade: DNGA150612TM-2
• Execution: A
• Manufacturer: Walter Tools

FAQ

What workpiece materials is this insert suited for?
The DNGA150612TM‑2 WBH20 insert is specified for hardened steels and is suitable for pre‑hardened steel applications; the WBH20 CBN grade targets high‑hardness machining tasks.

Is the insert suitable for interrupted cuts and roughing operations?
Yes, the combination of 0° negative rake and a 1.2 mm corner radius gives a robust cutting edge that is well suited to interrupted cuts and demanding roughing sequences with the Walter Tools CBN insert.

How does the WBH20 grade affect tool life compared with conventional grades?
The WBH20 CBN grade emphasises wear resistance and edge stability for hard turning, which typically results in longer in‑service life and fewer tool changes when machining high‑hardness workpieces.

Can this insert be used for finishing to tight surface finish requirements?
When applied with appropriate cutting parameters, the insert’s Rhombic 55° geometry and stable edge can produce consistent surface quality in finishing passes on hardened materials.

Is special tooling required to use the DNGA150612TM‑2 insert?
Compatibility depends on the toolholder type, but the ISO designation DNGA150612TM‑2 WBH20 is compatible with holders designed for DNGA inserts; correct clamping and recommended cutting data from Metav Werkzeuge ensure reliable performance.

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

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