SUMITOMO WNMG080402N-FA T2000Z (WNMG 430.5-FA) Cermet Steel Turning Insert
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SUMITOMO WNMG080402N-FA T2000Z (WNMG 430.5-FA) Brilliant Coat PVD Cermet High-Gloss 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 stability, and mirror-like surface finishes during high-speed continuous profiling cuts on carbon and alloy steels?"
The SUMITOMO WNMG080402N-FA T2000Z (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 Brilliant Coat PVD cermet technology, the T2000Z grade incorporates a highly specialized, ultra-smooth PVD layer coupled with an advanced TiCN-based cermet substrate. This specific combination yields unparalleled wear resistance and adhesion suppression, completely eliminating built-up edge (BUE) under dry 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
- Brilliant Coat PVD Architecture: Implements an ultra-smooth, high-lubricity thin-film PVD layer over a cermet substrate. It prevents chemical bonding between the insert and steel workpieces, guaranteeing mirror-like surface gloss.
- 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 and prevent deflection on slender components.
- Advanced Wear-Resistant Cermet Core: Built on a specialized micro-grain TiCN cermet core tailored for exceptional plastic deformation resistance. It guarantees long-term tool life and pocket seat reliability under high-temperature conditions.
- 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) | 180 - 350 m/min (590 - 1150 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) | 200 - 400 m/min (650 - 1310 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 T2000Z high-speed cermet finishing grade offers premium security and surface gloss 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 | T2000Z (Target) | ISO P10 - P20 / High-Speed Steel Finishing & Mirror Profiling | Brilliant Coat PVD Coating with Advanced TiCN Cermet Core |
| Sandvik Coromant | CT5015 / CT1525 | ISO P15 / Steel Fine Finishing | Uncoated / PVD coated cermet for high wear resistance |
| Kennametal | KT315 / KT125 | ISO P10 - P20 / High-Surface-Finish Turning | TiCN/Al2O3/TiN multi-layer coated or uncoated cermet |
| Kyocera | TN60 / PV720 | ISO P10 - P20 / High-Speed Steel Turning | Megacoat Nano PVD coated high-rigidity 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 on 4140 pre-hardened steel pins. The WNMG430.5-FA in T2000Z has replaced our cylindrical grinding process. The Brilliant Coat completely eliminates tool welding, holding a tight tolerance across 400 parts per corner. Exceptional micro-finishing tool."
"Hervorragende Glanzoberfläche! T2000Z ist unsere erste Wahl für die Schlichtbearbeitung von C45-Stahl. Die Schnittkante bleibt extrem scharf und der FA-Spanbrecher verhindert zuverlässig Wirrwar-Späne bei minimaler Schnitttiefe (ap=0.2mm)."
"Finitura a specchio fantastica su componenti automotive. Il raggio 0.2 mm taglia senza vibrazioni anche su pezzi flessibili. Ottima durata del tagliente cermet."
"自動車用鋼製品の超精密仕上げで使用。ブリリアントコートの効果は絶大で、面粗度が非常に安定します。切れ味重視のFAブレーカとT2000Zサーメットの組み合わせは、他社品と比べても寿命が倍近く伸びました。"
8. Technical Machining FAQ
Q: Why should I choose a cermet insert like T2000Z instead of a standard tungsten carbide grade for finishing steel?
A: Cermets exhibit exceptionally low chemical affinity with steel workpieces, providing superior resistance to oxidation and built-up edge. This allows you to achieve significantly cleaner, high-gloss surface finishes (mirror finishes) and superior dimensional accuracy at higher cutting speeds compared to carbide.
Q: Is the WNMG080402N-FA T2000Z suitable for heavy roughing or interrupted machining?
A: No. Cermet materials are harder but inherently more brittle than tungsten carbide. The 0.2mm nose radius and sharp FA chipbreaker profile are engineered specifically for light finishing cuts (depth of cut less than 1.0mm) and continuous profiling. For heavy roughing or severe interruptions, tough carbide grades should be selected.
Q: Should I run this cermet insert dry or with coolant?
A: Cermets perform exceptionally well in high-speed dry machining, as this prevents thermal shocking along the cutting edge. However, if coolant must be used for chip flushing or dimensional control on thin parts, ensure a continuous, high-volume flow of flood coolant to eliminate temperature fluctuations.
💡 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 stable structural clamping conditions.
Machining Troubleshooting Guide: If micro-chipping or thermal cracking occurs along the cutting edge, verify that the pocket clamp torque is secure and inspect for setup vibration. Consider switching from intermittent coolant to pure dry machining or implementing a highly stable Minimum Quantity Lubrication (MQL) setup to prevent thermal shock.
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.
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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.