SUMITOMO WNMG080404N-EG AC5015S (WNMG 431-EG) Exotic HRSA Carbide Turning Insert
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SUMITOMO WNMG080404N-EG AC5015S (WNMG 431-EG) Absotech PVD Carbide Exotic HRSA Medium Cutting Turning Insert
1. Product Overview
"Which indexable carbide insert grade and medium-cut chipbreaker geometry deliver the absolute best tool life, adhesion resistance, and burr control during the continuous or lightly interrupted turning of heat-resistant superalloys like Inconel 718, Nimonic, and hardened stainless steel?"
The SUMITOMO WNMG080404N-EG AC5015S (internationally designated in imperial benchmarks as WNMG 431-EG) is an industrial-grade, double-sided negative 80° trigon indexable turning insert engineered explicitly for general medium-duty cutting, profiling, and light interrupted machining of Heat-Resistant Superalloys (HRSA) and exotic cobalt/nickel-based matrices (ISO S10 - S20 classification, as well as difficult ISO M stainless steels). Utilizing Sumitomo's pioneering Absotech PVD coating technology, the AC5015S grade features an ultra-dense TiAlN-based composite structure with superior high-temperature hardness and adhesion strength. This drastically minimizes localized depth-of-cut notch wear and plastic deformation under severe thermal loads. Paired with the highly engineered EG Type Chipbreaker geometry, this insert lowers cutting forces, shears cleanly through work-hardening surface layers, and yields predictable tool life across heavy-duty defense, aerospace, and oil field turning operations.
2. Product Key Features
- Absotech PVD Ultra-Dense Technology: Implements a highly engineered, stress-controlled thin-film PVD architecture. It forms a supreme thermal shield that resists thermal shock fatigue caused by cyclic coolant exposure during high-speed interrupted passes.
- Optimized EG-Type Rake Geometry: Features a specialized positive land profile and variable chip deflector walls. The EG profile optimizes shearing efficiency to suppress cutting zone heat while maintaining excellent chip curling characteristics during medium profiling cuts.
- High-Rigidity, Deformation-Resistant Core: Built on a specialized fine-grained tungsten carbide-cobalt substrate tailored for exceptional high-temperature yield strength. It guarantees pocket seat reliability and structural preservation under heavy tool pressure.
- 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) | 0.4 mm | 0.0156 in (1/64") |
| Fixing Hole Diameter (d1) | 3.81 mm | 0.150 in |
📊 Recommended Technical Cutting Parameters
| Workpiece Material Category | Cutting Speed (vc) | Feed Rate (f) |
|---|---|---|
| Inconel 718 / Monel / Hastelloy Turning | 35 - 75 m/min (115 - 245 SFM) | 0.12 - 0.30 mm/rev (0.005 - 0.012 ipr) |
| Precipitation Hardening Stainless Steel (17-4PH) | 80 - 150 m/min (260 - 490 SFM) | 0.10 - 0.28 mm/rev (0.004 - 0.011 ipr) |
This WNMG0804 / WNMG431 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 AC5015S superalloy grade offers superior tool security across high-precision industrial components:
5. Toolholder & Equipment Compatibility
Strictly compliant with indexable geometric standard pocket seating, this 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 high-rigidity CNC turning centers (Mazak, DMG Mori, Okuma, Haas) utilizing high-volume flood coolant delivery to maximize chip clearing and heat dissipation.
6. Industrial Grade Comparison Matrix
| Brand | Equivalent Grade Reference | Application Range | Coating Properties |
|---|---|---|---|
| SUMITOMO | AC5015S (Target) | ISO S10 - S20 / Advanced Interrupted HRSA & Superalloy Machining | Absotech Tough PVD Titanium-Aluminium Nitride Matrix |
| Sandvik Coromant | GC1105 / GC1115 | ISO S15 / HRSA Medium Cut Profile Cutting | PVD multi-layer thin film coating |
| Kennametal | KCS10B / KCS20B | ISO S10 - S20 / Shock-Resistant Superalloy Machining | High-Al content AlTiN PVD system |
| Iscar | IC806 / IC807 | ISO S10 - S20 / High-Impact Exotic Metal Turning | AlTiN PVD hard coating layer |
7. Why Choose Us & Verified Global Performance Evaluations
Real-world machine shop metrics proving structural edge stability and wear control under heavy impact:
"We profile-turn Inconel 718 gas turbine rings. Built-up edge used to destroy our insert corners mid-pass. Since switching to the AC5015S with the EG breaker, we are getting a clean 18 parts per corner with completely uniform wear bands. The smooth PVD coating handles sticky materials beautifully."
"Exzellente Standzeit bei Nimonic-Legierungen. Die Absotech PVD-Beschichtung bietet einen hervorragenden Schutz vor Kolkverschleiß und Kerbverschleiß bei mittleren Schnitttiefen. Die EG-Geometrie bricht die Späne sehr zuverlässig."
"Ottimo inserto per la tornitura media di acciai inossidabili induriti e superleghe. Il controllo del truciolo è fantastico anche a avanzamenti ridotti."
"耐熱合金の倣い加工において抜群の耐溶着性を示します。境界摩耗が非常に少ないため、ワークの寸法変化が抑えられ、仕上げ精度の管理が非常に楽になりました。EGブレーカのバランスが良いです。"
8. Technical Machining FAQ
Q: What makes the AC5015S grade uniquely suited for exotic HRSA alloys over general grades?
A: HRSAs generate massive thermal concentrations at the tool-chip interface. The AC5015S relies on Sumitomo's specialized ultra-dense PVD thin-film technology, which maximizes coating layer adhesion and micro-hardness under elevated operating temperatures to prevent early plastic deformation of the edge.
Q: When should I choose the EG chipbreaker geometry for turning operations?
A: The EG chipbreaker is explicitly optimized for general-purpose medium-duty machining. It features a sharp yet stable edge land that strikes an ideal balance between low cutting force and edge durability, making it the perfect choice for medium profiling where cut depths fluctuate.
Q: Should I run this insert dry or wet?
A: Wet machining with generous flood coolant is strongly recommended. High-volume coolant reduces cutting temperatures and lubricates the tool-chip interface to prevent chip welding, extending tool life on austenitic and duplex stainless steels.
💡 Technical Grade Comparison & Troubleshooting Guide
Workpiece Material Matrix (ISO Classifications): Primary application domain covers ISO S10 to S20 parameters. Explicitly optimized for continuous-to-heavily interrupted cutting of nickel-based superalloys (Inconel 718, Inconel 625), cobalt-based alloys (Stellite), titanium alloys (Ti-6Al-4V), and difficult precipitation-hardened stainless steels.
Machining Troubleshooting Guide: If severe boundary notch wear or plastic deformation occurs, lower the cutting speed (vc) or adjust depth parameters. If micro-chipping occurs along the cutting edge during profiling, reduce the feed rate (f) slightly or check the structural rigidity of the lathe spindle setup.
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.