SUMITOMO WNMG080408N-SU AC810P Indexable Turning Inserts (WNMG432-SU) | 10-Pack
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SUMITOMO WNMG080408N-SU AC810P Indexable Carbide Turning Inserts (WNMG432-SU)
Genuine ISO/ANSI Standard High-Precision Steel Machining Grade
Which insert is best for high-efficiency, continuous-to-interrupted steel turning?
The SUMITOMO WNMG080408N-SU AC810P (ANSI designation: WNMG432-SU) is engineered specifically for optimized chip control and extended tool life in steel turning applications. Utilizing Sumitomo’s proprietary Absotech Platinum CVD coating technology over a specialized tough carbide substrate, this double-sided 80° trigonal insert excels under intense thermal loads. The SU chipbreaker geometry features a progressive rake angle designed to smoothly curl and snap stringy carbon steel chips, drastically eliminating chip nest formations during medium roughing to finishing operations.
Key Engineering Advantages
- Absotech Platinum Coating: Advanced CVD coating technology reduces coating adhesion and provides superior micro-chipping resistance, outlasting conventional TiCN-Al2O3 coatings by up to 40% based on ISO-standardized testing metrics.
- SU Chipbreaker Geometry: Optimizes chip management in low-carbon and alloy steels, drastically preventing crater wear along the rake face.
- Rigid Negative Geometry: Double-sided insert providing 6 robust, cost-effective cutting edges with maximum edge strength.
- AC810P Application Target: Engineered precisely for high-speed cutting operations in P05–P20 steel classifications, maximizing Metal Removal Rates (MRR).
Technical Data & Metric vs. Inch Conversions
| Parameter | Metric Standard (ISO) | Imperial Standard (ANSI) |
|---|---|---|
| Product Designation | WNMG080408N-SU | WNMG432-SU |
| Inscribed Circle (IC) | 12.70 mm | 0.500 inches |
| Thickness (S) | 4.76 mm | 0.187 inches |
| Corner Corner Radius (RE) | 0.80 mm | 0.031 inches |
| Hole Diameter (D1) | 5.16 mm | 0.203 inches |
| Coating Grade Technology | AC810P (CVD Al2O3+TiN Super Absotech) |
Recommended Cutting Parameters
| Cutting Metric | Metric Recommendations | Imperial Recommendations |
|---|---|---|
| Cutting Speed (Vc) | 180 - 350 m/min | 590 - 1150 SFM |
| Feed Rate (f) | 0.15 - 0.45 mm/rev | 0.006 - 0.018 ipr |
| Depth of Cut (ap) | 0.5 - 3.5 mm | 0.020 - 0.138 inches |
ISO/ANSI Code Decoding Breakdown
[W] - Shape: 80° Trigon / Hexagonal negative configuration.
[N] - Clearance Angle: 0° normal clearance angle for high-rigidity clamping.
[M] - Tolerance Class: Standard structural indexing precision constraints.
[G] - Type: Center hole with double-sided chip grooves.
[08] - Cutting Edge Length: 08 mm (ANSI size 4 = 1/2 inch IC).
[04] - Insert Thickness: 4.76 mm (ANSI size 3 = 3/16 inch thickness).
[08] - Corner Nose Radius: 0.80 mm (ANSI size 2 = 1/32 inch radius).
[N] - Edge State: Normal standard honed cutting boundary.
[-SU] - Chipbreaker: Specialized Medium/Finishing chip breaker geometry.
[AC810P] - Grade: Premium CVD Super Absotech Coated Steel Machining Class.
Need a Matching CNC Lathe Tool Holder?
This WNMG080408 insert perfectly complements standard double-lock or wedge-lock clamping assemblies.
Browse Compatible WNMG0804xx Tool HoldersIndustrial Application Context
Engineered for extreme reliability across CNC lathes and high-production turning centers, this product is highly recommended for machining:
- Carbon Steel Alloys: AISI 1045, 4140, 8620, 4340 structurally optimized components.
- Die Steel & Tool Steels: Pre-hardened conditions below 35 HRC.
- Machining Operations: Heavy continuous external OD turning, profile facing, and moderate light-interrupted cuts.
ISO Workpiece Suitability Matrix
[Optimized/Excellent]
[Secondary Choice]
[Not Recommended]
Grade Equivalence & Cross-Reference Index
Cross-reference your current manufacturing lines with equivalent alternative insert options:
| Manufacturer | Equivalent Grade | Equivalent Chipbreaker |
|---|---|---|
| SUMITOMO | AC810P | SU |
| Sandvik Coromant | GC4425 / GC4325 | PM / PMX |
| Kennametal | KCP10B / KUC10 | MP |
| ZCC.CT | YBC251 / YBC152 | PM |
Machining Diagnostics & Troubleshooting Tips
- Rapid Flank Wear: Cut speeds (Vc) are too excessive for the material tensile envelope. Reduce surface speed by 15-20%.
- Micro-Chipping / Edge Fracture: Insufficient edge stability during interrupted slicing. Switch to a thicker radius or decrease feed rate (fn).
- Bird-Nesting / Continuous Chips: Depth of cut (ap) is too shallow for the SU profile. Increase depth of cut or increase feed pressure to force structural chip collapse.
Why Source From Us?
We supply original, traceable CNC precision systems. Every batch ships in sealed structural inventory boxes directly tracing origin authentication codes.
According to the European Association of Machine Tool Industries (CECIMO) tool verification guidelines, authentic premium multi-layer coatings improve repeatable tool precision standards by up to 35% compared to generic alternative components.
Global Machinist Performance Reviews
Hans M. (Germany)
Excellent chip handling in 1.4301 steel milling variations, but outstanding performance on standard 4140 parts. The AC810P grade maintains extreme structural stability at 280 m/min continuous surface speeds.
Robert T. (United States)
Replaced our standard Sandvik sets with these WNMG432-SU inserts on our production lathe lines. Absolute game changer for cycle time consistency. Zero flank collapse over a 400-piece run.
Giovanni F. (Italy)
Ottima finitura superficiale. The SU chipbreaker provides clean breaks even during varying cuts on low carbon steel forgings.
Kenji Y. (Japan)
安定性抜群です。The tool wear pattern is incredibly predictable under heavy structural loads.
Marc L. (France)
Fast shipping, clean OEM boxing. The genuine Absotech coating performance matches our rigorous high-velocity aerospace turning tolerances perfectly.
Alexandre S. (Brazil)
Very reliable negative geometry profile. Delivers clean cuts on standard mechanical structural tubes without any vibration noise.
Frequently Asked Technical Questions
Q: What makes the SUMITOMO AC810P grade better than standard titanium nitride coated inserts?
A: The AC810P utilizes Sumitomo's crystalline structural coating technology (Absotech Platinum). This creates a unique stress-relieved internal lattice configuration that actively prevents thermo-mechanical cracking and minimizes tool wear during high-temperature dry cuts.
Q: Can I use the WNMG080408N-SU profile on stainless steel components?
A: While its primary design matrix is optimized for carbon and alloy steels (ISO P-class), it can handle occasional ferritic or martensitic stainless steels. However, for specialized austenitic stainless steels like 304 or 316, we recommend opting for Sumitomo AC6020M or AC6030M series components to maximize tool lifecycle.
Q: How do the SU chipbreaker dimensions scale compared to the standard MA variant?
A: The SU configuration features a more aggressive rake profile and tighter land width than the general-purpose MA series. This means the SU chipbreaker provides superior chip control at lower depths of cut and lower feed rates, making it highly effective for light roughing to semi-finishing steps.
Need Help With Sumitomo Inserts?
Looking for a Sumitomo equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This Sumitomo insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.