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.
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.