TOOL WEAR INVESTIGATION OF COATED CEMENTED CARBIDE INSERTS DURING INTERRUPTED TURNING OF NODULAR CAST IRON

Artikel i vetenskaplig tidskrift, 2025

This study investigates the wear mechanisms for two different cemented carbide grades during intermittent turning of nodular cast iron. Turning tests with in-situ force measurements were performed on workpieces with axially oriented grooves. An in-depth analysis of tools and the workpiece material was conducted utilising scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS). Based on the material characterisation, the workpiece material was found to contain a significant amount of abrasive non-metallic inclusions, typically triggering wear by abrasion and thus limiting the toollife. The results show industrially applicable performance for both tested grades.