Sandvik Coromant 5909109 Turning Insert WNMG432-SMR

Product Description

The SANDVIK COROMANT 5909109 is a WNMG432-SMR 1115 grade solid carbide turning insert from the T-Max P series, designed for precision external turning operations on CNC lathes and turning centers. The insert features a TiAlN and AlCr2O3 dual coating applied via PVD process, providing thermal resistance and wear protection at elevated cutting temperatures. It carries a neutral hand orientation and an 80-degree trigon (W) insert shape with a 0.031 inches corner radius. With 6 available cutting edges and an SMR chip breaker geometry, this insert is suited for medium to finishing passes where chip control and surface finish consistency are critical. Licensed machinists and CNC operators install this insert as part of a toolholder assembly.

This insert is engineered primarily for machining stainless steel (ISO material code M) and is rated for secondary use on superalloys and titanium (ISO material code S). These are demanding workpiece materials that generate high cutting forces and heat, making the PVD-applied TiAlN and AlCr2O3 coating combination particularly relevant. It fits into compatible WNMG-style toolholders using a clamp and pin holding method. The T-Max P series is a SANDVIK COROMANT platform intended for external turning, profiling, and facing on modern CNC turning equipment in both job shop and production environments.

Key Features

• TiAlN and AlCr2O3 dual coating via PVD process for high-temperature wear resistance
• SMR chip breaker geometry designed for controlled chip formation on stainless steel and superalloys
• 6 usable cutting edges per insert for extended tool life per unit
• 80-degree trigon insert shape (W) with neutral hand orientation for versatile tool path applications
• Clamp and pin holding method for secure seating in compatible WNMG toolholders
• ISO code WNMG080408-SMR 1115 for cross-reference compatibility verification

Compatibility

Designed for use in WNMG-style insert toolholders that accept the 432 insert size with clamp and pin retention. Compatible workpiece materials include stainless steel (ISO code M), superalloys, and titanium (ISO code S). ISO designation WNMG080408-SMR 1115 can be used to verify fitment with metric-referenced toolholder specifications.

Installation Notes

Insert installation and indexing should be performed by a qualified machinist with the machine in a fully stopped and locked-out state per OSHA lockout/tagout procedures. Use the appropriate torque wrench and manufacturer-specified clamping hardware when seating the insert in the toolholder pocket. Inspect the insert pocket and locating surfaces for chips or debris before seating a new insert. Do not attempt to use a visually chipped or fractured insert edge, as this can result in workpiece damage or toolholder failure.