Sandvik Coromant 5730425 Turning Insert Dcgt 1115

Product Description

The SANDVIK COROMANT 5730425 is a solid carbide turning insert in the CoroTurn 107 series, designed for precision external and internal turning operations on difficult-to-machine materials. The insert features a 55-degree diamond shape (DCGT style) with a 7-degree relief angle and a 0.2 mm corner radius, making it well suited for finishing and semi-finishing cuts where tight tolerances and surface finish matter. A dual-layer TiAlN and AlCr2O3 PVD coating provides thermal resistance and edge stability when cutting stainless steel, superalloys, and titanium. Licensed machinists and CNC operators working in aerospace, medical, and industrial manufacturing will find this insert a direct fit for screw-clamped toolholders in the CoroTurn 107 platform.

This insert is intended for turning centers and CNC lathes running stainless steel as the primary workpiece material, with secondary application in superalloys and titanium. The neutral hand orientation allows use in both right- and left-hand toolholder configurations. The UM chip breaker geometry is optimized for light depths of cut and finishing passes where chip control and surface quality are the priority. It is a standard choice for precision turning in aerospace component work and medical-grade part production where material work hardening and heat generation are common challenges.

Key Features

• 55-degree diamond insert shape (DCGT) with 7-degree relief angle for low cutting forces and clearance on finish passes
• TiAlN and AlCr2O3 PVD dual-layer coating for heat resistance and edge wear protection on stainless steel and superalloys
• UM chip breaker geometry optimized for finishing and semi-finishing cuts with reliable chip evacuation
• 0.2 mm corner radius (0.0079 inches) for tight-tolerance finishing work
• 2 usable cutting edges per insert for cost efficiency in production runs
• Screw-clamping insert holding method for positive seating and repeatable tool change accuracy

Compatibility

Designed for use in SANDVIK COROMANT CoroTurn 107 series screw-clamp toolholders accepting DCGT-style inserts with a 1/4-inch inscribed circle. ISO code DCGT 07 02 02-UM 1115. Compatible with toolholders using the C clearance and G tolerance specification. Primary workpiece material class M (stainless steel); secondary material class S (superalloy and titanium).

Installation Notes

• Installation is performed by CNC machinists or toolroom technicians. Power down and lock out the machine spindle before changing inserts.
• Seat the insert fully against the pocket locating surfaces before tightening the clamp screw to avoid micro-movement under cutting load.
• Inspect the insert pocket and shim for damage or debris before seating a new insert, as contamination can affect insert orientation and surface finish.
• Do not use damaged or chipped edges — index to the second cutting edge or replace the insert to maintain dimensional accuracy and prevent toolholder damage.