Kyocera GDM3020N-030PH PR1225 Grooving Insert | 3mm Width(10PCS)
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GDM3020N-030PH PR1225
Kyocera Precision Tools | High-Performance Grooving & Parting
The Kyocera GDM3020N-030PH PR1225 is a specialized indexable grooving insert engineered for high-precision parting, grooving, and traverse turning. Utilizing the advanced MEGACOAT PR1225 PVD grade, this insert provides a superior balance of toughness and wear resistance. Featuring the PH chipbreaker, it is designed to manage high-feed rates while ensuring excellent chip evacuation in stainless steel machining and carbon alloy steels.
Model Specification Decoded
Insert Series
3.0mm Width
20mm Length
Neutral Angle
0.3mm Radius
Chipbreaker
MEGACOAT
Technical Dimensions
| Cutting Width ($W$) | 3.0 mm (0.118") |
|---|---|
| Corner Radius ($R$) | 0.3 mm (0.012") |
| Insert Style | Double-Ended (Neutral) |
| ANSI Designation | GDM 3020N-030PH PR1225 |
PR1225 MEGACOAT Grade
The PR1225 grade is Kyocera’s flagship PVD coating for grooving. It combines a high-toughness carbide substrate with a MEGACOAT layer that resists heat and oxidation. This makes it the primary choice for precision machining in stainless steel, providing stable performance even during interrupted cuts or low-speed operations on CNC lathes.
PH Chipbreaker Geometry
The PH Chipbreaker (Power Heavy) is optimized for medium-to-heavy grooving and parting. It features a reinforced cutting edge to prevent chipping under high cutting resistance. It excels in chip control during deep radial grooving, ensuring chips are curled tightly and ejected without damaging the workpiece surface finish.
Recommended Cutting Parameters
Optimized for GDM Series (Grooving)
| Workpiece Material | Cutting Speed ($v_c$) | Feed Rate ($f$) |
|---|---|---|
| Stainless Steel (SUS304) | 50 - 120 m/min | 0.05 - 0.15 mm/rev |
| Alloy Steel (SCM440) | 80 - 150 m/min | 0.08 - 0.18 mm/rev |