SUMITOMO WNMG080402N-FA T1500A (WNMG 430.5-FA) Uncoated Cermet Steel Finishing Turning Insert
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SUMITOMO WNMG080402N-FA T1500A (WNMG 430.5-FA) Uncoated Cermet High-Gloss General Steel Finishing Turning Insert
1. Product Overview
"Which cermet turning insert grade and high-precision finishing chipbreaker geometry deliver the absolute best tool life, dimensional accuracy, and cost efficiency during continuous high-speed profiling cuts on carbon and alloy steels?"
The SUMITOMO WNMG080402N-FA T1500A (internationally designated in imperial benchmarks as WNMG 430.5-FA) is a premium industrial-grade, double-sided negative 80° trigon indexable turning insert engineered explicitly for high-precision finishing, micro-profiling, and high-gloss machining of carbon, alloy, and mild steels (ISO P10 - P20 classification). Utilizing Sumitomo's pioneering T1500A general-purpose uncoated cermet technology, this grade incorporates a highly specialized TiCN-based advanced ceramic matrix with an optimized binder phase. This specific composition yields unparalleled oxidation resistance and adhesion suppression, completely eliminating built-up edge (BUE) under high-speed dry machining or minimal quantity lubrication (MQL) processing. Paired with the highly engineered FA Type Finishing Chipbreaker geometry, this insert features a uniquely sharp cutting edge land that lowers cutting forces, controls stringy chip nesting under minimal depths of cut, and ensures exceptional surface finish quality (Ra value control) even under high surface footage parameters.
2. Product Key Features
- T1500A Advanced Ceramic Matrix Core: Built on a specialized micro-grain TiCN cermet architecture that exhibits superior crater wear resistance. It prevents chemical bonding between the insert and steel workpieces, guaranteeing exceptional surface gloss and prolonged edge sharpness without the need for a coating layer.
- Optimized FA-Type Finishing Geometry: Features a specialized sharp positive land profile and fine-tuned chip deflector walls. The FA profile maximizes shearing efficiency to reduce tool pressure, minimize chatter, and prevent deflection on slender components.
- Excellent Plastic Deformation Resistance: Engineered with high high-temperature hardness that maintains cutting edge sharpness even during continuous, prolonged high-speed profiling passes on pre-hardened alloys.
- 6 Cost-Efficient Indexable Edges: The negative 80-degree structural trigon layout yields 6 distinct cutting corners per insert, delivering elite processing economy and maximizing shop floor cost savings.
3. Technical Specifications & Dimension Matrix
🔍 ISO / ANSI Nomenclature Decoding Matrix
| Dimension Parameter | Metric Specification (ISO) | Imperial Specification (ANSI) |
|---|---|---|
| Inscribed Circle (IC) | 9.525 mm | 0.375 in (3/8") |
| Thickness (S) | 4.76 mm | 0.187 in (3/16") |
| Corner Nose Radius (re) | 0.2 mm | 0.0078 in (1/128") |
| Fixing Hole Diameter (d1) | 3.81 mm | 0.150 in |
📊 Recommended Technical Cutting Parameters
| Workpiece Material Category | Cutting Speed (vc) | Feed Rate (f) / Depth of Cut (ap) |
|---|---|---|
| Carbon & Alloy Steels (AISI 1045 / 4140) | 150 - 300 m/min (490 - 980 SFM) | 0.03 - 0.12 mm/rev (0.0012 - 0.0047 ipr) ap: 0.10 - 1.0 mm (0.004 - 0.039 in) |
| Mild Steels & Low-Carbon Alloys (A36) | 180 - 350 m/min (590 - 1150 SFM) | 0.04 - 0.10 mm/rev (0.0015 - 0.004 ipr) ap: 0.10 - 0.8 mm (0.004 - 0.031 in) |
This WNMG0804 / WNMG430.5 indexable matrix requires standard external or internal negative turning toolholders with a 95° approach angle.
Browse Matching MWLNR/L & WWLNR/L Toolholders →4. Product Application Scenarios
The T1500A high-speed uncoated cermet finishing grade offers supreme performance and cost efficiency across specific components:
5. Toolholder & Equipment Compatibility
Strictly compliant with indexable geometric standard pocket seating, this cermet insert integrates natively into global standard hardware:
- External Shank Holders: MWLNR2020K08, MWLNR2525M08, WWLNR2525M08 (Metric) / MWLNR16-4B, WWLNR16-4B (Imperial).
- Boring Bars (Internal): A32S-MWLNR08, A40T-MWLNR08 (Minimum bore clearance diameter >= 40mm).
- Lathe Integration: Optimized for modern, high-rpm CNC turning centers (Mazak, DMG Mori, Okuma, Haas) utilizing rigid setups. Cermets perform best in stable, high-velocity dry machining setups.
6. Industrial Grade Comparison Matrix
| Brand | Equivalent Grade Reference | Application Range | Coating Properties |
|---|---|---|---|
| SUMITOMO | T1500A (Target) | ISO P10 - P20 / High-Speed Steel Finishing & General Purpose Cermet | Uncoated Micro-Grain TiCN-Based Ceramic Core Matrix |
| Sandvik Coromant | CT5015 | ISO P15 / Steel Fine Finishing | Uncoated high wear resistant cermet grade |
| Kennametal | KT125 | ISO P10 - P20 / High-Surface-Finish Turning | Uncoated high hardness cermet system |
| Kyocera | TN60 / TN610 | ISO P10 - P20 / High-Speed Steel Turning | Uncoated conventional high-wear cermet matrix |
7. Why Choose Us & Verified Global Performance Evaluations
Real-world machine shop metrics proving absolute dimensional accuracy and chip breaking efficiency under minimal loads:
"We run these uncoated cermet inserts on 1045 steel shafts. The WNMG430.5-FA in T1500A delivers incredible value. Since it's uncoated, the cutting edge is perfectly sharp, allowing us to drop our feed down to 0.002 ipr without rubbing. The surface finish looks like it was polished by hand."
"Hervorragende Wirtschaftlichkeit! T1500A bietet eine fantastische Standzeit beim Schlichten. Der unbeschichtete Cermet-Schneidstoff erzeugt keine Aufbauschneiden bei der Bearbeitung von Automatenstahl. Der FA-Spanbrecher funktioniert perfekt."
"Finitura brillante e costanza dimensionale eccellente. Ottimo rapporto qualità-prezzo grazie alle 6 taglienti utili. Molto stabile su passate leggere."
"S45Cの連続仕上げ加工で長年愛用しています。ノンコートサーメットの特性である鋭い切れ味により、削り出し時の抵抗が極めて低いです。T1500Aは耐クレーター摩耗性に優れ、寸法変化がほとんどありません。"
8. Technical Machining FAQ
Q: What makes the T1500A grade different from coated cermet grades like T2000Z?
A: T1500A is an uncoated cermet grade. Because it lacks a coating layer, the cutting edge is naturally sharper, providing incredibly clean shearing action with lower radial cutting forces. It offers great cost-efficiency and performance in continuous, high-speed steel fine finishing where coatings are not strictly required to achieve a gloss finish.
Q: Can the WNMG080402N-FA T1500A handle heavy shocks or interrupted cuts?
A: No. Cermets are highly brittle compared to traditional tungsten carbide. The sharp FA profile and 0.2mm nose radius are built exclusively for light finishing and continuous profiling. For heavy roughing or interrupted machining, tougher carbide grades should always be chosen.
Q: What is the optimal method for chip breaking at a 0.2mm nose radius using the FA chipbreaker?
A: The FA chipbreaker is designed with an aggressive deflector wall located very close to the keen edge. To ensure reliable chip breaking, keep your depth of cut (ap) between 0.15mm and 0.8mm, paired with a low feed rate. This forces thin chip layers to curl quickly and break cleanly instead of birds-nesting.
💡 Technical Grade Comparison & Troubleshooting Guide
Workpiece Material Matrix (ISO Classifications): Primary application domain covers ISO P10 to P20 parameters. Explicitly optimized for continuous high-speed precision finishing, carbon steel profiling (e.g., S45C, 1045), alloy steels (e.g., SCM440, 4140), and mild steels under highly stable structural clamping conditions.
Machining Troubleshooting Guide: If micro-chipping or premature flank wear occurs along the keen cutting edge, verify that the pocket clamp torque is secure and check for setup rigidity. To maximize tool life, avoid cyclic thermal stress by prioritizing high-velocity dry machining or ensuring a highly consistent, high-volume flood coolant delivery.
Authorized Reference Documentation & Endorsements: Dimensional configurations, pocket seating tolerances, and naming structures fully comply with the international ISO 1832:2017 industrial standards blueprint. Mechanical strength thresholds, thermal crack criteria, and wear tolerances are cross-referenced from verified test catalogs published by Sumitomo Electric Hardmetal Corp.
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.