Sumitomo 19PWAFI Turning Insert CNMG432EMU AC630M Carbide

Product Description

The SUMITOMO 19PWAFI is a solid carbide turning insert in the CNMG432EMU geometry, manufactured to ANSI code CNMG432EMU and ISO code CNMG120408N-MU. Intended for use on CNC lathes and turning centers, this insert features a CVD-applied aluminum oxide (Al2O3) coating over a solid carbide substrate, placing it in material grades C5, C5A, C6, and C7. The neutral hand orientation suits a wide range of turning setups. Key dimensional specs include a 0.5000-inch inscribed circle, a 0.5079-inch insert length, a 3/16-inch insert thickness, and a 1/32-inch (0.0313-inch) corner radius. The 80-degree diamond insert shape and positive rake angle of 4 degrees support efficient chip control via the EMU chip breaker geometry.

This insert is suited for general turning and finishing operations, with secondary workpiece material compatibility noted for stainless steel (material code M). It is designed for use in toolholders that accept CNMG-series inserts held by clamp and pin methods. Typical applications include OD turning on CNC lathes in metalworking shops, job shops, and production machining environments. Machinists and CNC operators working with stainless steel and similar alloys will find the AC630M grade and EMU chip breaker geometry appropriate for controlled chip evacuation and surface finish requirements.

Key Features

• CVD-applied Al2O3 coating over solid carbide substrate for wear resistance in demanding turning applications
• CNMG432EMU chip breaker geometry with EMU designation for positive rake, controlled chip flow
• 80-degree diamond insert shape (shape code C) with neutral hand for versatile toolholder compatibility
• 1/32-inch corner radius (0.0313 inches) suitable for general turning and semi-finish passes
• Conforms to ANSI and ISO 13399 standards, simplifying tool management and documentation
• Clamp and pin holding method compatible with standard CNMG-series toolholders

Compatibility

Designed for use in CNMG-series toolholders that accept clamp and pin insert retention. Compatible with material grades C5, C5A, C6, and C7 applications. Secondary workpiece material compatibility is noted for stainless steel (ISO material code M). Verify toolholder pocket geometry against ANSI code CNMG432EMU or ISO code CNMG120408N-MU before installation.

Installation Notes

Installation is performed by qualified CNC machinists or toolroom technicians. Ensure the machine spindle is fully stopped and all axes are at a safe home position before indexing or replacing inserts. Use the appropriate torque wrench and seating tool as specified by the toolholder manufacturer when securing the clamp and pin to avoid insert cracking or improper seating. Inspect the toolholder pocket and seating surfaces for chips or debris before installing a new insert.