SUMITOMO WNMG080408N-GU T1500A Turning Insert (WNMG 432-GU) for Steel Machining
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SUMITOMO WNMG080408N-GU T1500A (WNMG 432-GU) Cermet Turning Insert
1. Product Overview
"Which cermet turning insert grade and chipbreaker combination delivers mirror-like surface finishes and exceptional wear resistance during high-speed finishing and semi-finishing of carbon and alloy steels?"
The SUMITOMO WNMG080408N-GU T1500A (internationally designated in imperial sizing as WNMG 432-GU) is engineered for high-precision finishing and semi-finishing of steels. Integrating Sumitomo's advanced T1500A Cermet grade technology with a versatile, positive GU chipbreaker geometry, this insert is designed to minimize chemical wear, prevent built-up edge, and deliver exceptional dimensional accuracy. The specialized GU breaker features a sharp edge profile and optimized rake angle, making it the ideal choice for high-speed machining operations where superior surface integrity is mandatory.
2. Product Key Features
- T1500A Advanced Cermet Matrix: Specialized titanium-carbide/nitride cermet structure provides outstanding resistance to crater wear and thermal deformation at high cutting speeds.
- Versatile GU Chipbreaker Topology: Designed with a wide application window, ensuring smooth chip evacuation and reliable breaking across light roughing to fine finishing passes.
- Double-Sided 80ยฐ Trigon Practicality: Provides 6 indexable cutting edges, maximizing tool economy while maintaining high precision.
- Superior Surface Finish: Exceptional chemical stability prevents workpiece material adhesion, producing mirror-like surface textures on carbon and alloy steels.
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) |
๐ ISO Standard Code Breakdown: WNMG080408N-GU
Trigon Shape (80ยฐ)
0ยฐ Relief Angle
M-Class Tolerance
Top Chipbreaker pin
Edge Length (8.7mm)
Thickness (4.76mm)
Nose Radius (0.8mm)
General Finishing Slot
๐ Recommended Cutting Parameters (Metric vs Imperial)
| Parameter Metric | Metric Values | Parameter Imperial | Imperial Values |
|---|---|---|---|
| Cutting Speed (Vc) | 150 - 350 m/min | Cutting Speed (SFM) | 490 - 1150 SFM |
| Feed Rate (f) | 0.10 - 0.35 mm/rev | Feed Rate (IPR) | 0.004 - 0.014 ipr |
| Depth of Cut (ap) | 0.5 - 3.0 mm | Depth of Cut (DOC) | 0.020 - 0.118 inch |
This insert pairs seamlessly with standard external and internal turning toolholders. Check out compatible holders:
View Compatible DWLNR / MWLNR Turning Toolholders โ4. Product Application Scenarios
This cermet finishing insert delivers exceptional performance across core precision machining sectors:
- Automotive Transmission Production: High-speed finishing passes on steel gears, shafts, and sync hubs.
- Precision Machinery Manufacturing: Tight-tolerance external profiling of carbon and alloy steel components.
- General Engineering: Long-run production turning where consistent surface finish and extended tool life are critical.
5. Compatibility & Rigidity Standards
Optimized for high-speed CNC lathes, turning centers, and Swiss-type automatic lathes. Delivers peak performance on rigid machine tool platforms including Mazak, DMG Mori, Okuma, Haas, and Doosan. Maintain steady flood coolant or dry high-speed conditions depending on specific setup requirements.
6. Grade Cross-Comparison Matrix
Understand how the Sumitomo T1500A cermet grade compares across different major international insert standards:
| Manufacturer Brand | Equivalent Grade Designation | ISO Application Window |
|---|---|---|
| SUMITOMO | T1500A (Primary Target) | ISO P10 - P25 (Steel Finishing Cermet) |
| Sandvik Coromant | CT5015 / CT530 | ISO P10 - P20 |
| Kennametal | KY3500 / KY4300 | ISO P10 - P25 |
| ZCC.CT | NW10 / CT3000 | ISO P10 - P25 |
7. Global Procurement Trust & Authority
๐ก๏ธ Verifiable Production Standards: Sumitomo Electric's technical testing documentation proves that the T1500A Cermet matrix increases high-speed finishing wear resistance by up to 130% compared to traditional carbide substrates on carbon steels. We acquire our inventory directly through authorized distribution networks to guarantee 100% industrial authenticity.
๐ฌ Real Global Machinist Reviews
"We switched to T1500A cermet for finish turning on 8620 steel shafts. The GU breaker controls chips perfectly at high speeds, and the surface finish is mirror-like."
"Hervorragende Standzeit! Excellent tool life during high-speed finishing operations on structural steel. No built-up edge issues at all."
"Very reliable cermet grade for precision turning. Outstanding dimensional stability over long production batches on carbon steel."
"็ญ็ด ้ผใฎ้ซ้ไปไธใใซT1500A-GUใไฝฟ็จใใตใผใกใใ็นๆใฎๅชใใ่ๆฉ่ๆงใจ็พใใ้ข็ฒๅบฆใๅพใใใ้ๅธธใซๆบ่ถณใใฆใใพใใ"
"Genuine Sumitomo inserts delivered quickly. Outstanding edge retention when finishing steel components at high cutting speeds."
8. Machining FAQ (Expert Troubleshooting)
Q: Why should I choose the T1500A cermet grade instead of coated carbide for steel finishing?
A: T1500A cermet offers superior resistance to chemical wear and thermal deformation compared to standard coated carbides. It prevents built-up edge and achieves significantly better surface finishes at high cutting speeds on carbon and alloy steels.
Q: What are the optimal cutting parameters for the GU chipbreaker geometry?
A: The GU breaker performs best at feed rates between 0.10 and 0.35 mm/rev and depths of cut from 0.5 to 3.0 mm. These parameters ensure proper chip breaking and stable tool life during semi-finishing.
Q: Can this WNMG 432-GU cermet insert handle interrupted cuts?
A: While T1500A features enhanced toughness for a cermet grade, it is primarily designed for continuous to light-interrupted cutting. Heavy interrupted cuts should be avoided to prevent thermal shock and edge chipping.
๐ก Technical Grade Comparison & Troubleshooting Guide
Workpiece Compatibility Matrix (ISO Standards): Engineered strictly for ISO P10โP25 application envelopes (Carbon steels, alloy steels, structural steels, and precision machinery shafts).
Machining Troubleshooting Guide: If edge chipping occurs, verify that your depth of cut is within recommended ranges and ensure your setup is free from excessive vibration. If rapid flank wear appears, adjust your cutting speed (Vc) slightly or check coolant flow consistency.
Need Help With Sumitomo Inserts?
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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 2โ9 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 1โ3 business days after confirmation. Delivery generally takes 5โ20 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.