Sumitomo 19T5CGQ Turning Insert DNMG431EEF-AC5015S Carbide

Product Description

The SUMITOMO 19T5CGQ is a solid carbide turning insert designed for precision metal removal on CNC lathes and turning centers. It carries the ANSI designation DNMG431EEF and ISO code DNMG150404N-EF, placing it in the AC5000S series with manufacturer grade AC5015S. The insert features a TiAlSiN coating applied via PVD process under Sumitomo's Absotech Bronze proprietary designation, delivering high heat resistance and wear performance in demanding cutting applications. With a 55-degree diamond shape, negative rake geometry, and EEF chip breaker, it is engineered for controlled chip flow and edge stability. Machinists and CNC operators working in job shops, contract manufacturing, or production turning environments will recognize this as a direct-fit screw-lock insert for standard DNMG toolholders.

The 19T5CGQ is rated for powdered metal as its primary workpiece material, making it well suited for sintered components and PM steel parts commonly encountered in automotive, aerospace, and industrial manufacturing. The EEF chip breaker geometry supports finishing and semi-finishing passes where chip control and surface integrity are priorities. The neutral cutting direction makes it compatible with both right-hand and left-hand toolholder setups, adding flexibility across multi-turret and multi-axis turning configurations. The AC5015S grade is positioned within the S10 material grade classification for challenging workpiece materials.

Key Features

• Solid carbide substrate with TiAlSiN PVD coating (Absotech Bronze) for heat and wear resistance
• 55-degree diamond insert shape (Shape Code D) with negative rake and 0-degree relief angle (Clearance Code N)
• EEF chip breaker geometry optimized for finishing and semi-finishing of powdered metal workpieces
• Neutral cutting direction for right-hand or left-hand toolholder compatibility
• Screw-lock holding method (Tolerance Code M) for secure, repeatable insert indexing
• Meets ANSI and ISO 13399 standards for direct integration with tooling management systems

Compatibility

Designed as a screw-lock replacement insert for DNMG-style toolholders conforming to ANSI and ISO 13399 standards. Compatible ANSI designation is DNMG431EEF and ISO equivalent is DNMG150404N-EF. Verify toolholder seating pocket and screw size before installation.

Installation Notes

Insert replacement should be performed by a qualified machinist or CNC tooling technician with the machine powered down and all axes at a safe home position. Use the correct torque screwdriver specified by the toolholder manufacturer for the clamp screw — do not use impact drivers or standard hex keys that may strip the screw seat. Inspect the insert pocket for debris or wear before seating the new insert. Confirm cutting edge orientation and chip breaker direction match the programmed tool path before resuming cuts.