Sumitomo 19HVCGN Turning Insert CNMG431EEF AC510U Carbide

Product Description

The SUMITOMO 19HVCGN is a solid carbide turning insert in the CNMG431EEF configuration, designed for precision external turning operations on CNC lathes and turning centers. It carries the AC510U manufacturer grade and features a dual-layer PVD coating — TiAlN and AlCrN — under SUMITOMO's proprietary Super ZX coating designation. This coating combination delivers high heat resistance and edge stability during interrupted and continuous cuts. The insert measures 0.5079 inches in length with a 0.5 inch inscribed circle and a 0.0156 inch corner radius. It is suited for production machining environments where consistent tool life and surface finish are critical. Machining technicians and CNC setup personnel are the primary installers.

This insert is rated for use on superalloy workpiece materials, making it applicable in aerospace, power generation, and high-temperature alloy machining contexts. The EEF chip breaker geometry is optimized for light to medium depth-of-cut finishing passes where chip control and surface integrity are priorities. The neutral hand orientation allows flexible toolholder pairing across standard CNMG-compatible boring bars and external turning toolholders. The CN series designation aligns with ISO code CNMG120404N-EF for international toolholder cross-referencing.

Key Features

• AC510U grade with PVD-applied TiAlN and AlCrN dual coating (Super ZX designation) for extended tool life on difficult alloys
• 80-degree diamond insert shape (Shape Code C) for strong cutting edge geometry with moderate clearance
• EEF chip breaker designed for finishing operations with reliable chip evacuation
• Neutral hand orientation compatible with standard CNMG clamp-and-pin toolholders
• Rated for superalloy (ISO material code S) secondary workpiece material applications
• Meets ANSI and ISO 13399 standards for insert geometry and identification

Compatibility

Designed for use in CNMG-style clamp and pin toolholders accepting a 0.5 inch inscribed circle insert with a 0.2031 inch hole diameter. Cross-references to ISO code CNMG120404N-EF for international toolholder compatibility verification.

Installation Notes

Installation should be performed by a qualified CNC machinist or tooling technician. Power down and lock out the machine spindle before seating or replacing inserts. Use the appropriate torx or hex key to the toolholder manufacturer's specified seating procedure — do not overtighten the clamp screw. Inspect the insert pocket and seating surfaces for chips or debris before installing a new insert to ensure full, stable seating.