SDGW09T304-A88 WDN20 WDN20 Wendeplatten - Walter Tools

The combination of a PCD grade (WDN20) and the A88 chipbreaker delivers sustained tool life and dependable chip control for abrasive, non‑ferrous machining; the 15° clearance and 0.4 mm corner radius support consistent surface quality and dimensional stability. Order or request technical advice via Metav Werkzeuge for fast, application‑oriented support.

SDGW09T304-A88 WDN20 – PCD milling indexable insert (A88 chipbreaker) by Walter Tools

The SDGW09T304-A88 WDN20 is an indexable milling insert designed for productive machining of non‑ferrous and abrasive, non‑ferrous materials in industrial milling applications.

*PCD grade WDN20 for high wear resistance *A88 chipbreaker for controlled chip formation *15° clearance angle for smooth cutting *0.4 mm corner radius for fine surface finish

Designed for long tool life in abrasive, non‑ferrous applications

The insert is produced in a polycrystalline diamond (PCD) grade WDN20, which is engineered for high wear resistance when machining abrasive, non‑ferrous materials. Because PCD provides a very hard cutting edge, tool life is extended and flank wear is reduced, resulting in fewer index changes and less unplanned downtime. The WDN20 grade is suitable where consistency under abrasive conditions is required; the material matrix should be consulted to confirm optimal applications.

Efficient chip control and stable machining performance

Integrated chipbreaker A88 geometry promotes predictable chip formation and evacuation, which supports higher feed rates and stable cutting forces. The controlled chips reduce the risk of rework caused by surface damage, while the 15° clearance angle helps to avoid rubbing and heat build‑up at the flank. These geometric choices are intended to improve process reliability and to enable more productive machining cycles on modern milling equipment.

Geometry tuned for surface quality and dimensional accuracy

The square, 90° insert shape with a 0.4 mm corner radius provides a balance between edge strength and the ability to achieve a refined surface finish on workpieces. The nominal thickness T3 and size code 09 are designed to fit common, robust milling cutter bodies, allowing secure clamping and repeatable positioning. Where fine edge definition and consistent part tolerances are priorities, this geometry minimises vibration and aids in achieving a uniform finish.

Application guidance and economical operation

Because PCD inserts behave differently to carbide in terms of edge preparation and cutting data, recommended cutting parameters should be confirmed against the specific material and machine setup. The SDGW09T304-A88 WDN20 is particularly effective on abrasive non‑ferrous alloys and composite materials; this results in lower overall tooling cost per component when high wear resistance reduces the frequency of index changes. For series production, the extended life of the PCD grade often produces measurable cost benefits and greater process stability.

For application advice, tooling selection or to secure compatible Walter Tools inserts, contact Metav Werkzeuge for tailored technical support and prompt delivery at info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• SKU: SDGW09T304-A88-WDN20-WALTER
• Designation: SDGW09T304-A88 WDN20
• Product type: Milling indexable insert
• Manufacturer: Walter Tools

Facts

• Clearance angle: 15°
• Corner radius: 0.4 mm
• Insert shape: Square 90°
• Size code: 09
• Thickness: T3
• Tolerance class: G

Special features

• Grade: WDN20 (PCD – polycrystalline diamond)
• Chipbreaker: A88
• Series: Walter Schneidstoffsorte – Serie offen
• Material suitability: Non‑ferrous and abrasive, non‑ferrous materials (verify product matrix)
• Geometry benefits: predictable chip control, improved surface quality

FAQ

What materials is this insert intended for?
The SDGW09T304-A88 WDN20 insert is formulated for abrasive, non‑ferrous materials; it is a PCD grade intended primarily for machining non‑ferrous alloys and abrasive composites, but the product matrix should be checked for specific material matches.

How does the A88 chipbreaker affect machining?
The A88 chipbreaker promotes controlled chip formation and evacuation, helping the insert to maintain consistent cutting forces and to reduce the risk of surface damage during milling with the SDGW09T304-A88 WDN20.

What advantage does the 0.4 mm corner radius provide?
A 0.4 mm corner radius increases edge strength compared with a sharper corner while still allowing a fine surface finish; this helps to improve dimensional stability and reduce edge chipping during roughing and finishing passes with the insert.

Is this insert compatible with standard cutter bodies?
The SDGW09T304-A88 WDN20 uses common industry form factors (size code 09, thickness T3, square 90°) and is compatible with milling cutters designed for these insert dimensions; secure clamping and correct seat geometry are essential for repeatable results.

How should cutting data be adapted for PCD inserts?
Cutting data for PCD grades like WDN20 typically differ from carbide recommendations; consult Walter Tools guidance or Metav Werkzeuge technical support for parameter optimisation tailored to the specific workpiece material and machine tool.

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

Walter AG (brand: Walter Tools) with headquarters in Tübingen is one of the world’s leading manufacturers of precision tools for metal machining and is part of the Swedish Sandvik Group. Protected trademarks and trade names remain the property of their respective owners and are mentioned for explanatory purposes only. There is no affiliation between Metav Werkzeuge and the named manufacturers. The offered item is an original, factory‑new product of the manufacturer.