Sumitomo 19HWAPL Turning Insert DNMG432ESU AC520U Carbide

Product Description

The SUMITOMO 19HWAPL is a solid carbide turning insert in the DNMG432ESU geometry, offered in manufacturer grade AC520U with a dual-layer TiAlN and AlCrN PVD coating marketed under the Super ZX proprietary designation. The insert features a 55-degree diamond shape (ANSI code DNMG432ESU, ISO code DNMG150408N-SU), a 0.5-inch inscribed circle, a 0.0313-inch corner radius, and a neutral hand orientation. It is designed for precision turning operations and is installed by machinists and CNC lathe operators working with demanding workpiece materials. The ESU chip breaker geometry and positive 13-degree rake angle promote efficient chip evacuation during continuous and interrupted cutting.

This insert is suited for turning applications involving stainless steel, superalloys, and titanium, where tool wear resistance and edge stability are critical. The PVD coating process preserves sharp edge geometry, making the insert appropriate for finishing and semi-finishing passes where surface integrity is a priority. It fits into standard DNMG-style toolholders and is applicable in both manual and CNC turning centers. The Series DN designation and ANSI/ISO 13399 compliance ensure compatibility with widely used tooling systems in job shop and production machining environments.

Key Features

• Solid carbide substrate with TiAlN and AlCrN PVD dual-layer coating (Super ZX designation)
• 55-degree diamond insert shape with neutral hand orientation and positive 13-degree rake angle
• ESU chip breaker geometry for controlled chip flow in difficult-to-machine materials
• 0.5-inch inscribed circle and 0.0313-inch corner radius per ANSI DNMG432ESU specification
• Compliant with ANSI and ISO 13399 tooling standards
• Rated for secondary workpiece materials: stainless steel, superalloy, and titanium (ISO material codes M and S)

Compatibility

Designed for use in DNMG-style toolholders that accept clamp and pin insert holding methods. Conforms to ANSI code DNMG432ESU and ISO code DNMG150408N-SU for direct cross-reference to compatible toolholder systems. Clearance code N and tolerance code M apply.

Installation Notes

Installation is performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and the toolholder is secure before seating or removing the insert. Use the appropriate torque wrench and clamp or pin holding hardware specified for the DNMG toolholder in use. Inspect the insert pocket and seating surface for chips or debris before installation to maintain proper insert positioning and edge geometry.