Sumitomo 19T6WFE Turning Insert 3/8 Ic Tialsin AC5025S

Product Description

The SUMITOMO 19T6WFE is a WNMG-style carbide turning insert designed for precision single-point turning operations on CNC and manual lathes. Coated with TiAlSiN via a PVD process under Sumitomo's proprietary Absotech Bronze designation, this insert is engineered for cutting superalloy workpiece materials where heat resistance and edge integrity are critical. It carries a negative rake geometry with a 16-degree rake angle and a neutral hand orientation. The EEX chip breaker controls chip flow during demanding cuts. Insert size code is 332, with a 3/8-inch inscribed circle and a 0.0313-inch corner radius. Licensed machinists and CNC operators working in aerospace, power generation, and high-temp alloy machining are the primary installers of this insert grade.

This insert is rated for superalloy cutting applications, corresponding to ISO material code S and Sumitomo material grade S20. The AC5025S grade within the AC5000S series is selected for difficult-to-machine materials including nickel-based, cobalt-based, and titanium alloys where tool life and consistent edge performance are priorities. It is suited for finishing to medium roughing passes depending on feed and depth-of-cut parameters set by the operator.

Key Features

• TiAlSiN coating applied via PVD process under Absotech Bronze designation for heat and wear resistance in superalloy cutting
• EEX chip breaker geometry engineered for chip control in tough, gummy materials
• Negative rake with 16-degree rake angle reduces cutting forces while maintaining edge strength
• 80-degree trigon insert shape (W) provides two usable cutting edges per insert
• Screw-clamp insert holding method ensures secure seating during interrupted or continuous cuts
• Compliant with ANSI and ISO 13399 standards; ISO code WNMG060408N-EX

Compatibility

Designed for use in WNMG 332 toolholders that accept screw-lock (hole-type) inserts with a 0.1500-inch hole diameter. Confirmed ISO designation WNMG060408N-EX. Verify toolholder pocket geometry and seating surface condition before installation.

Installation Notes

Installation is performed by qualified CNC machinists or toolroom technicians. Power down and lock out the machine spindle before changing inserts. Use the correct Torx or hex key to the toolholder manufacturer's specified torque range — do not overtighten, as carbide inserts are brittle and can crack under excessive clamping force. Inspect the toolholder pocket and clamp screw threads for wear or debris before seating the new insert.