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

Journal article, 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.