Sumitomo 19HWAPK Turning Insert DNMG431ESU AC520U Carbide

Product Description

The SUMITOMO 19HWAPK is a DNMG431ESU-style solid carbide turning insert with AC520U grade and a dual-layer TiAlN and AlCrN PVD coating marketed under the Super ZX proprietary designation. The insert carries a 55-degree diamond shape (Shape Code D) with a neutral hand orientation and a positive 13-degree rake angle, making it well suited for efficient chip formation during turning operations. Key dimensional specs include a 0.6102-inch insert length, a 0.5-inch inscribed circle, a 0.1875-inch thickness, and a 0.0156-inch corner radius. The ESU chip breaker geometry is designed to manage chip flow on demanding materials. Licensed machinists, CNC operators, and toolroom technicians are the primary installers of this insert.

This insert targets turning of stainless steel and superalloy workpieces, corresponding to ISO material codes M and S. The PVD TiAlN and AlCrN coating combination provides heat resistance and edge stability at the elevated cutting temperatures common in these material groups. The DNMG style seats in toolholders that accept clamp and pin holding methods with a clearance code N and tolerance code M per ANSI and ISO 13399 standards. ANSI code is DNMG431ESU and ISO code is DNMG150404N-SU. Typical applications include shaft turning, facing, and profiling on CNC lathes in job shop and production environments.

Key Features

• AC520U solid carbide grade with TiAlN and AlCrN PVD dual-layer coating for heat and wear resistance
• ESU chip breaker geometry optimized for stainless steel and superalloy turning
• 55-degree diamond insert shape with 0.0156-inch corner radius for profiling and finishing passes
• Positive 13-degree rake angle promotes lower cutting forces and reduced edge built-up
• Compatible with clamp and pin holding systems in standard DNMG toolholders
• Conforms to ANSI and ISO 13399 standards for interchangeable tooling identification

Compatibility

Designed for use in standard DNMG-style toolholders that accept clamp and pin holding methods. Verified secondary workpiece materials are stainless steel and superalloys (ISO material codes M and S). No specific toolholder model numbers were provided by the manufacturer for this listing.

Installation Notes

Insert seating and clamping should be performed by a qualified CNC operator or machinist following the toolholder manufacturer's torque and clamping procedures. Always power down and lock out the machine spindle before changing inserts. Inspect the insert pocket and clamping components for damage or debris before seating the new insert. Do not exceed the cutting parameters specified in the SUMITOMO AC520U grade application data for the workpiece material being machined.