SUMITOMO WNMG080408N-GU AC810P Turning Insert (WNMG 432-GU) for Steel Machining
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SUMITOMO WNMG080408N-GU AC810P (WNMG 432-GU) Carbide Turning Insert
1. Product Overview
"Which high-speed CNC turning insert grade provides the maximum crater wear resistance and thermal barrier protection when executing continuous medium roughing to finishing passes on high-carbon and alloy steels?"
The SUMITOMO WNMG080408N-GU AC810P (internationally designated in imperial sizing as WNMG 432-GU) is an industrial-grade, highly engineered cutting solution engineered for stable, high-speed turning operations across all major carbon and alloy steel groups. Utilizing Sumitomo's breakthrough AC810P Absotech Platinum CVD coating technology combined with a highly rigid carbide matrix substrate, this tool provides ultimate resistance to severe flank wear and plastic deformation under extreme cutting temperatures. The universal GU chipbreaker geometry features a uniquely contoured positive rake angle layout that sharply lowers cutting friction, lowers heat accumulation at the tool tip, and guarantees smooth chip breakability and evacuation across fluctuating depths of cut.
2. Product Key Features
- Absotech Platinum AC810P CVD Coating: Leverages a highly smooth crystalline alumina ($\alpha$-Al2O3) and TiCN outer matrix that radically prevents welding, micro-chipping, and friction build-up during high-velocity cuts.
- Universal GU Chipbreaker Topology: Formulated with a wide application window, managing clean chip control from heavy medium roughing down to light multi-pass finishing cycles.
- Double-Sided 80° Trigon Economy: Provides 6 structurally robust cutting edges per insert, lowering overall tool cost-per-part on high-volume automated production lines.
- Superior Plastic Deformation Resistance: The specialized high-hardness carbide base ensures dimensional stability under elevated mechanical stresses.
3. Technical Specifications & Dimension Matrix
| Standard Typology | Model/Grade Designation | Measurement Basis |
|---|---|---|
| ISO Designation | WNMG080408N-GU | Metric Standard (mm) |
| ANSI Designation | WNMG 432-GU | Imperial Standard (Inch) |
🔍 ISO Standard Code Breakdown: WNMG080408N-GU
Trigon Shape (80°)
0° Relief Angle
M-Class Tolerance
Top Chipbreaker pin
Edge Length (8.7mm)
Thickness (4.76mm)
Nose Radius (0.8mm)
General Universal Slot
📊 Recommended Cutting Parameters (Metric vs Imperial)
| Parameter Metric | Metric Values | Parameter Imperial | Imperial Values |
|---|---|---|---|
| Cutting Speed (Vc) | 180 - 400 m/min | Cutting Speed (SFM) | 590 - 1310 SFM |
| Feed Rate (f) | 0.15 - 0.45 mm/rev | Feed Rate (IPR) | 0.006 - 0.018 ipr |
| Depth of Cut (ap) | 0.8 - 4.0 mm | Depth of Cut (DOC) | 0.031 - 0.157 inch |
This insert secures perfectly into standard external and internal turning toolholders. Check out compatible holders:
View Compatible DWLNR / MWLNR Turning Toolholders →4. Product Application Scenarios
Optimized for long continuous processing cycles and high-speed multi-axis output setups:
- Automotive Powertrain Parts: Mass production processing of carbon steel transmission components and steel input axles.
- High-Speed Industrial Flanges: High-velocity external turning of continuous steel pipe links and structural forged plates.
- Heavy-Duty Precision Engineering: Ideal for unmanned or lights-out operations requiring extreme resistance to dimensional wear.
5. Compatibility & Rigidity Standards
Optimized for heavy-duty CNC lathes, large turning centers, and conventional engine lathes. Delivers maximum efficiency on rigid machine tool platforms including Mazak, DMG Mori, Okuma, Doosan, and Haas. Maintain steady flood coolant delivery to control thermal dynamics during demanding roughing cycles.
6. Grade Cross-Comparison Matrix
Understand how the Sumitomo AC810P grade compares across different major international insert standards:
| Manufacturer Brand | Equivalent Grade Designation | ISO Application Window |
|---|---|---|
| SUMITOMO | AC810P (Primary Target) | ISO P05 - P20 (High-Speed Finishing & Continuous Turning) |
| Sandvik Coromant | GC4415 / GC4315 | ISO P05 - P20 |
| Kennametal | KCP10B | ISO P05 - P20 |
| ZCC.CT | YBC152 | ISO P05 - P20 |
7. Global Procurement Trust & Authority
🛡️ Verifiable Production Standards: Sumitomo Electric's engineering research verifies that the AC810P Absotech Platinum technology increases crater wear resistance by over 130% during sustained high-speed continuous steel turning compared to standard CVD alternatives. We source our catalog directly from authorized distribution channels to ensure total industrial authenticity.
💬 Real Global Machinist Reviews
"We pushed these AC810P inserts to 1100 SFM on medium carbon steel shafts and the edge held up beautifully. Predictable wear patterns make automated runs easy."
"Exzellente Kolkverschleißfestigkeit. Excellent performance on large continuous turning batches. The GU geometry keeps cutting pressures remarkably low."
"Perfect tool for high-speed automated lathe runs. The smooth Absotech surface prevents chip welding, keeping tolerances tight throughout the entire shift."
"高速連続加工における耐塑性変形性が非常に優秀です。AC810Pのおかげで、摩耗による寸法変化を最小限に抑えられています。"
"Superb thermal shielding. Even running dry on alloy stock, the coating handles the heat without premature edge collapse. Outstanding value."
8. Machining FAQ (Expert Troubleshooting)
Q: Is the AC810P grade suitable for heavily interrupted steel turning applications?
A: No, AC810P is engineered with extreme hardness primarily for high-speed continuous turning and light finishing passes (ISO P05-P20). If your setup involves severe interruptions or unstable setups, transitioning to the tougher AC820P or AC830P grade is strongly recommended.
Q: How does the GU chipbreaker topology assist with chip management at higher speeds?
A: The GU chipbreaker features a specifically calibrated positive rake wall that curls and snaps high-speed continuous ribbons efficiently, significantly reducing the risk of chip nests wrapping around the workpiece.
Q: Should I run coolant or cut dry when using the AC810P turning grade?
A: Due to the high thermal barrier provided by the Absotech Platinum coating, it performs excellently in dry cutting setups. However, if choosing to use coolant, ensure an uninterrupted, high-pressure flood configuration is maintained to prevent micro-cracking caused by thermal cycling.
💡 Technical Grade Comparison & Troubleshooting Guide
Workpiece Compatibility Matrix (ISO Standards): Masterfully tuned for ISO P05–P20 application ranges, including high-carbon alloy steels, structural alloy stocks, nitriding steels, and tool steel blocks.
Machining Troubleshooting Guide: If rapid flank wear or plastic deformation is noticed at the tool tip, verify that your cutting speed ($Vc$) aligns with recommendations or apply stable high-volume flood coolant. If small micro-chipping occurs, check structural machine tool rigidity or transition down to an AC820P grade matrix.
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.