DNMG150608N-SU AC820P Wendeplatten - Sumitomo

Take advantage of a robust CVD coating and a stable 55° negative geometry to achieve consistent finishes and reduced tooling changes in serial turning. Order the Sumitomo insert directly via Metav Werkzeuge or consult our specialists for application-specific recommendations.

Sumitomo DNMG150608N-SU AC820P – indexable turning insert, CVD-coated, 55° D‑rhombus

The Sumitomo DNMG150608N-SU AC820P is a double‑sided negative 55° indexable insert designed for finishing to light contouring of steel components.

• CVD-coated AC820P grade with Al₂O₃/TiCN
• 55° D‑rhombus negative geometry
• Robust 6.35 mm plate with 4 edges
• SU chipbreaker for fine finishing

Stable finish quality through advanced coating and grade

The combination of the AC820P grade with a CVD Super‑FF‑Coat (Al₂O₃/TiCN) delivers a balance of hardness and thermal resistance that supports consistent edge life during finishing operations. With a measured hardness of 90.1 HRA and a coating thickness of approx. 14 µm, this insert maintains cutting performance on a broad range of steels while reducing flank wear. The technical finish of the coating improves resistance to built‑up edge and helps sustain geometric integrity under the moderate cutting speeds recommended for this family.

Geometry and chip control for precise contouring

The D‑rhombus 55° negative form combined with the SU chipbreaker provides a stable support zone and gentle chip formation suited to fine cuts. The insert offers a 0.8 mm corner radius and four usable cutting edges, on a 6.35 mm plate that increases rigidity at the toolholder interface. A neutral cutting direction and the cylindrical through‑hole aid in repeatable clamping and quick indexing. Typical starting parameters are ap 0.5–2.0 mm, f 0.08–0.30 mm/rev and Vc in the range 190–310 m/min for steel; validate speeds against workpiece stability and machine dynamics.

Productivity and shopfloor advantages

Using a double‑sided, four‑edge insert reduces tooling expenditure and downtime for replacements in repetitive finishing tasks. The insert’s robust negative plate and standard form factor (1506) simplify tool‑set planning across turning programmes and facilitate predictable setup. The design is optimised for finishing to light machining rather than heavy roughing or highly interrupted cuts, which helps specify the right insert for the job and avoid premature edge failure. Packing in 10 pieces supports stocked supply and quick replenishment.

Contact Metav Werkzeuge for supply and machining guidance on the Sumitomo DNMG150608N-SU AC820P insert — email info@metav-werkzeuge.com or call +49 2822 7131930 for application validation and ordering assistance

Technical data

• Article number: 207074
• SKU: 207074-Sumitomo
• Manufacturer SKU: DNMG150608N-SU AC820P
• Name: Sumitomo DNMG150608N-SU AC820P Wendeschneidplatte
• Material: Hartmetall, CVD‑coated
• Origin: Japan
• Packaging unit: 10 pieces

Numbers / Core technical data

• Cutting angle / Spitzenwinkel: 55°
• Plate thickness: 6.35 mm
• Corner radius: 0.8 mm
• Number of cutting edges: 4
• Cutting edge length: 15.5 mm
• Inner circle / bore: 12.7 mm
• Hardness: 90.1 HRA
• Bending strength: 2.2 GPa
• Coating thickness: approx. 14 µm
• Recommended depth of cut (ap): 0.5–2.0 mm
• Recommended feed (f): 0.08–0.30 mm/rev
• Recommended cutting speed (Vc) for steel: 190–310 m/min
• Tolerance class: M

Designs / Special features

• D‑rhombus 55° negative plate form
• SU chipbreaker, double‑sided geometry
• Four usable cutting edges per insert
• Neutral cutting direction
• Cylindrical through‑hole (Zylindrisches Durchgangsloch)
• CVD Super‑FF‑Coat (Al₂O₃/TiCN)
• Robust 6.35 mm plate for increased rigidity
• Intended for finishing to light contouring; not for heavy roughing or heavy interrupted cuts
• Manufacturer article number: 207074
• ANSI reference: DNMG442ESU
• Monotaro code: 41306045

FAQ

What materials is this insert suitable for?
The Sumitomo DNMG150608N-SU AC820P insert is aimed at machining steel in finishing to light contouring operations, leveraging its AC820P CVD coating and SU chipbreaker for steady edge behaviour.

How many cutting edges are available per insert?
Each insert provides four usable cutting edges thanks to its double‑sided negative design, which supports economical tool usage and rapid indexing.

Which cutting parameters should be considered as a starting point?
Start with ap 0.5–2.0 mm, feed 0.08–0.30 mm/rev and Vc ~190–310 m/min for steel; the actual choice depends on workpiece rigidity, toolholder stability and machine capability when using the Sumitomo AC820P grade.

Can this insert be used for roughing operations?
No — the insert’s SU chipbreaker is a fine/finish geometry optimised for light cuts; it is not recommended for heavy roughing, very high feeds or severely interrupted cuts.

Is the coating suitable for elevated temperatures?
The CVD Super‑FF‑Coat (Al₂O₃/TiCN) offers thermal stability and wear resistance beneficial for finishing speeds, helping to reduce flank wear during continuous finishing passes.

Manufacturer / Responsible: Sumitomo Electric Hardmetal Corp.; 1‑1‑1 Koyakita, Itami, Hyogo 664‑0016; Japan