Sumitomo 19HVW2M Turning Insert CNMG430.5ESU AC510U

Product Description

The SUMITOMO 19HVW2M is a solid carbide turning insert designed for external and internal turning operations on CNC lathes and turning centers. It carries the CNMG430.5ESU geometry with an AC510U grade and a dual-layer PVD coating combining TiAlN and AlCrN, marketed under Sumitomo's Super ZX coating designation. The insert features an 80-degree diamond shape, a neutral hand orientation, and an ESU chip breaker profile engineered for positive-rake cutting action at 13 degrees. With a 0.5079-inch cutting edge length and a 0.0078-inch corner radius, it is suited for finishing to semi-finishing passes where edge sharpness and thermal resistance are critical. Licensed machinists and CNC operators install this insert as part of a toolholder system compatible with CNMG-style clamp and pin holding methods.

This insert is intended for precision turning applications on superalloy workpiece materials, including nickel-based, cobalt-based, and titanium alloys commonly encountered in aerospace, power generation, and medical machining environments. The ESU chip breaker geometry promotes chip control at moderate depths of cut and feed rates typical for these difficult-to-machine materials. The PVD coating process preserves edge sharpness better than CVD alternatives on heat-sensitive superalloys, reducing built-up edge and extending tool life in interrupted or continuous cuts. The ANSI code CNMG430.5ESU and ISO code CNMG120402N-SU allow cross-referencing with toolholder specifications and insert catalogs.

Key Features

• AC510U grade with dual PVD coating: TiAlN and AlCrN (Super ZX designation) for thermal and wear resistance
• 80-degree diamond insert shape with neutral hand for versatile turning setups
• ESU chip breaker with positive 13-degree rake for effective chip control on superalloys
• 0.0078-inch corner radius suited for finishing and semi-finishing pass profiles
• Clamp and pin holding method compatible with standard CNMG toolholders
• Compliant with ANSI and ISO 13399 insert standards for catalog interoperability

Compatibility

Designed as a direct-fit replacement for CNMG430.5ESU-style toolholder systems that accept clamp and pin style insert holding. Cross-references to ISO code CNMG120402N-SU. Intended for use with superalloy workpiece materials as the primary application. Verify toolholder seat and clamp style before installation.

Installation Notes

A qualified CNC machinist or toolroom technician should install this insert. Power down and lock out the machine spindle before seating or replacing inserts. Use the correct torx or hex key to the toolholder manufacturer's specified procedure when securing the clamp or pin. Inspect the toolholder seat for chips or debris before seating the insert to prevent micro-fracture of the carbide edge.