Sumitomo 19T5APA Turning Insert CNMG432ESU AC5015S Carbide

Product Description

The SUMITOMO 19T5APA is a solid carbide turning insert designed for precision metal cutting applications on CNC lathes and turning centers. It carries the ANSI designation CNMG432ESU and ISO code CNMG120408N-SU, conforming to both ANSI and ISO 13399 standards. The insert features an 80-degree diamond shape with a negative rake angle of 13 degrees and a neutral cutting direction. The AC5015S grade substrate is finished with a TiAlSiN coating applied via PVD process under the Absotech Bronze proprietary designation, delivering wear resistance and thermal stability. The ESU chip breaker geometry and 0.0313-inch corner radius make it well suited for finishing and semi-finishing passes. Licensed machinists and CNC tool-setup technicians are the primary installers.

This insert is intended for turning non-ferrous metals and superalloys, corresponding to primary workpiece material codes N and S. Typical applications include external and internal turning operations where controlled chip formation and consistent surface finish are required. The screw-holding method (insert holding code) ensures secure clamping in compatible toolholders. It fits standard CNMG-style insert pockets with the M tolerance and N clearance codes. The AC5000S series is engineered for demanding cutting conditions common in aerospace, medical, and precision machining environments where superalloy and non-ferrous components are prevalent.

Key Features

• Solid carbide substrate with TiAlSiN PVD coating (Absotech Bronze) for extended tool life on non-ferrous and superalloy workpieces
• 80-degree diamond insert shape (CNMG) with negative rake for strong cutting edge geometry
• ESU chip breaker optimized for finishing and semi-finishing passes
• 0.0313-inch corner radius for controlled surface finish
• Neutral cutting direction for flexible toolholder compatibility
• Conforms to ANSI and ISO 13399 standards for drop-in compatibility with standard CNMG toolholders

Compatibility

Designed for use in standard CNMG-style insert pockets with M tolerance and N clearance codes. Compatible with screw-clamped toolholders accepting a 0.2031-inch hole diameter. Intended for turning non-ferrous metals and superalloys per material codes N and S.

Installation Notes

Installation is performed by a qualified machinist or CNC setup technician. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate torx or hex key to seat the clamping screw to the toolholder manufacturer's specification. Inspect the insert pocket and clamping screw for wear or damage before seating a new insert.