Sumitomo 19HVAFN Turning Insert CNMG643EMU AC510U Carbide

Product Description

The SUMITOMO 19HVAFN is a solid carbide turning insert in CNMG style, designed for use on CNC lathes and turning centers. Carrying the manufacturer grade AC510U and coated with a PVD-applied TiAlN and AlCrN multilayer system — marketed under Sumitomo's Super ZX proprietary coating designation — this insert is built for demanding interrupted and continuous cuts in difficult-to-machine materials. The 80-degree diamond shape with a neutral hand orientation provides strong edge geometry, while the EMU chip breaker promotes efficient chip control. It measures 0.7598 inches in length with a 3/4-inch inscribed circle and a 3/64-inch corner radius.

This insert is intended for machining superalloys and titanium alloys, making it well suited for aerospace, medical, and energy sector component production. The positive rake angle of 4 degrees reduces cutting forces on these tough materials, helping extend tool life and maintain dimensional accuracy. The CNMG style with clamp and pin holding method fits standard CNMG toolholders, and the ISO code CNMG190612N-MU identifies it for international toolholder cross-reference. Typical applications include external turning and profiling operations where edge stability and heat resistance are critical.

Key Features

• AC510U grade with PVD TiAlN and AlCrN Super ZX coating for high-temperature wear resistance
• EMU chip breaker geometry optimized for superalloy and titanium workpiece materials
• 80-degree diamond insert shape (shape code C) with positive 4-degree rake angle
• 3/4-inch inscribed circle with 3/64-inch corner radius for precision profiling
• Neutral hand orientation — fits standard CNMG right- or left-hand toolholders
• Meets ANSI and ISO 13399 standards; dual-coded CNMG643EMU and CNMG190612N-MU

Compatibility

Designed as a direct-fit replacement for CNMG style toolholders accepting clamp and pin retention. ISO code CNMG190612N-MU supports cross-reference to compatible international toolholder systems. Rated for superalloy and titanium workpiece materials (ISO material code S).

Installation Notes

Installation is performed by machinists or toolroom technicians following standard CNC toolholder insert seating procedures. Power down and lock out the spindle before changing inserts. Ensure the toolholder pocket and seating surfaces are clean and free of chips before seating the insert. Do not exceed the insert's rated depth of cut or feed rates for the target workpiece material — consult the manufacturer's cutting data charts for AC510U grade parameters.