SUMITOMO WNMG080404N-UX AC830P Steel Turning Insert (WNMG 431-UX Metric & Imperial)
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SUMITOMO WNMG080404N-UX AC830P (WNMG 431-UX) Absotech CVD Steel Turning Insert
1. Product Overview
"Which indexable carbide insert grade and heavy interrupted chipbreaker profile provides the longest tool life and superior impact resistance during high-feed, heavy roughing of alloy and carbon steels?"
The SUMITOMO WNMG080404N-UX AC830P (internationally recognized in imperial dimensions as WNMG 431-UX) is a premium industrial-grade indexable turning insert engineered explicitly for high-efficiency machining within the ISO P (Carbon Steel, Alloy Steel, & Structural Steel) application window. Powered by Sumitomo’s breakthrough Absotech® Platinum coating technology, this insert integrates a revolutionary crystal-oriented thick $\alpha\text{-Al}_2\text{O}_3$ alumina and ultra-smooth TiCN layer over a highly tough, chip-resistant substrate. This advanced surface architecture dramatically reduces coating flaking, adhesive wear, and micro-chipping under severe thermal and mechanical shocks. Designed with the robust UX chipbreaker geometry, it features an aggressive variable rake angle and a wide, deep pocket configuration that lowers cutting forces, resists plastic deformation, and ensures excellent chip evacuation during heavy roughing to severely interrupted turning operations.
2. Product Key Features
- Absotech® Platinum Coating: Industry-leading CVD coating layout with a highly oriented crystal structure that eliminates micro-chipping and dramatically extends tool life during high-feed steel machining.
- UX Heavy Interrupted Design: Features an optimized, rigid cutting edge engineered to slice through heavy weldments, forged crust, and heavily interrupted surfaces without catastrophic edge fracture.
- Exceptional Thermal Shock Resistance: The specialized multi-layer structural chemistry protects the internal carbide core from rapid cyclical temperature spikes during wet or dry machining.
- Negative Trigon Economy: Double-sided layout provides 6 robust, high-strength cutting edges per insert, reducing tool costs per component in massive production runs.
3. Technical Specifications & Dimension Matrix
| Standard Typology | Model/Grade Designation | Measurement Basis |
|---|---|---|
| ISO Designation | WNMG080404N-UX | Metric Standard (mm) |
| ANSI Designation | WNMG 431-UX | Imperial Standard (Inch) |
🔍 ISO Standard Code Breakdown: WNMG080404N-UX
Trigon Shape (80°)
0° Relief Angle
M-Class Tolerance
With Hole & Slots
Edge Length (8.7mm)
Thickness (4.76mm)
Nose Radius (0.4mm)
Heavy Interrupted Breaker
📊 Recommended Cutting Parameters (Metric vs Imperial Comparison)
| Parameter Metric | Metric Recommended Values | Parameter Imperial | Imperial Recommended Values |
|---|---|---|---|
| Cutting Speed (Vc) | 120 - 200 - 280 m/min | Cutting Speed (SFM) | 390 - 650 - 920 SFM |
| Feed Rate (f) | 0.15 - 0.30 - 0.50 mm/rev | Feed Rate (IPR) | 0.006 - 0.012 - 0.020 ipr |
| Depth of Cut (ap) | 1.0 - 3.0 - 5.0 mm | Depth of Cut (DOC) | 0.039 - 0.118 - 0.197 inch |
This negative WNMG configuration requires rigid clamping toolholders to handle severe interrupted cutting forces. View compatible shanks below:
View Compatible DWLNR / MWLNR Lathe Toolholders →4. Product Application Scenarios
Engineered for high-volume material removal across intense global manufacturing applications:
- Forged Steel Machining: Rough turning of structural steel forgings with heavy, irregular oxide skins and scaling.
- Heavy Interrupted Components: Machining large steel shafts with keyways, splines, or cross-holes that exert continuous impact on the cutting edge.
- Structural Engineering Components: High-feed rough profiling of heavy steel flanges, pipe couplings, and structural plates.
5. Compatibility & Rigidity Standards
Perfectly optimized for standard multi-axis CNC turning centers, heavy-duty industrial lathes, and high-production automated systems. Out-of-the-box compatibility with tooling blocks from major equipment manufacturers including Mazak, Okuma, Haas, Doosan, and DMG Mori. Due to the aggressive chip evacuation and heavy forces of the UX breaker layout, rigid tool clamping assemblies and strong workholding setups are strictly required to withstand highly abrasive steel scale and severe mechanical shocks.
6. Grade Cross-Comparison Matrix
See how the Sumitomo AC830P flagship steel turning grade compares to industry equivalents:
| Brand Manufacturer | Equivalent Grade Designation | ISO Application Scope |
|---|---|---|
| SUMITOMO | AC830P (Primary Choice) | ISO P20 - P35 (Heavy Interrupted to High-Feed Rough Steel Turning) |
| Sandvik Coromant | GC4335 / GC4435 | ISO P30 - P40 |
| Kennametal | KCP30 / KCP40 | ISO P25 - P40 |
| Iscar | IC8350 / IC830 | ISO P25 - P40 |
7. Global Procurement Trust & Authority
🛡️ Verifiable Production Performance: Laboratory testing data from official Sumitomo Electric engineering catalogs demonstrates that the **AC830P series coated with Absotech® Platinum technology** achieves a **2.0x improvement in coating adhesion strength** and up to **180% longer tool life** over standard market CVD inserts during heavily interrupted steel machining. We guarantee 100% factory original, authentic sealed packages sourced straight via secure B2B supply lines.
💬 Real Global Machinist Reviews
"We put these WNMG 431-UX inserts on a massive run of forged 4140 steel shafts with multiple keyways. The impact resistance is incredible. Usually, the cutting edge chips out after 5 parts, but this AC830P grade reliably lasted through 15 parts per edge."
"Hervorragende Leistung! The chip breaking on high-tensile carbon steel is excellent even during deeper interrupted passes. The UX profile significantly reduces micro-chipping on the cutting line."
"Highly predictable for automated unmanned production lines. Delamination is completely eliminated thanks to the Absotech layer. Very good wear consistency corner-to-corner."
"AC830Pは強断続鋼加工において圧倒的な靭性を誇ります。熱亀裂が全く出ず、長寿命でコストパフォーマンス最高です。"
"Fantastic tool economy with the 6 cutting edges. Hard to find a tough roughing insert that handles both structural scale and heavy impact cycles seamlessly like this one."
8. Machining FAQ & Troubleshooting
Q: What is the primary difference between Sumitomo AC830P and standard finishing grades like AC8015P?
A: AC830P is structurally optimized with an ultra-tough substrate and thick shock-absorbing coating layers to resist heavy impact and thermal cycling unique to interrupted steel roughing (ISO P30-P35). High-speed finishing grades are harder but more brittle.
Q: Can I use this WNMG080404N-UX insert for light profiling or finishing steel components?
A: The UX chipbreaker profile is engineered primarily for heavy interrupted roughing. For light depth of cuts or fine finishing requirements, a sharper geometry with lower cutting force like the MU or GU profiles should be substituted.
Q: Is it recommended to run this steel turning insert dry or wet during heavy interruptions?
A: For heavy interruptions, dry machining or minimum quantity lubrication (MQL) is often preferred to prevent thermal shock cracking. However, if high-volume flood coolant is used, ensure it is applied uniformly with high pressure directly at the cutting border.
💡 Technical Grade Comparison & Troubleshooting Guide
Workpiece Material Matrix (ISO Classifications): First choice for all ISO P steel variations including carbon steels (S45C/1045), alloy steels (SCM440/4140), structural steels (SS400/A36), and manganese tough steels.
Machining Troubleshooting Guide: If premature chipping occurs on the cutting border, reduce feed rate ($f$) slightly or verify rigidity. If crater wear develops rapidly, decrease cutting speed ($Vc$) or transition to a harder, more wear-resistant grade like AC8025P.
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.